PRODUCT CATALOG INDUSTRIAL VIBRATION SENSORS FOR CONDITION MONITORING AND PREDICTIVE MAINTENANCE

Transcription

1 PRODUCT CATALOG INDUSTRIAL VIBRATION SENSORS FOR CONDITION MONITORING AND PREDICTIVE MAINTENANCE

2 IMI Sensors Division PCB Piezotronics, Inc. The IMI Sensors Division of PCB Piezotronics, Inc. is pleased to provide this catalog of our broad spectrum of standard products. Within this publication are sensors, accessories, and signal conditioning equipment, which have been specifically designed for industrial machinery vibration measurements, condition based monitoring, process control, and predictive maintenance requirements. In 1990, PCB Piezotronics Inc. formed the IMI Sensors Division to focus on the design effort of robust accelerometers for demanding industrial machinery monitoring applications. Today, IMI has grown to be a world leading manufacturer of industrial accelerometers with a product offering that also includes piezo-velocity sensors, 4-20 ma sensors and transmitters, accelerometers with on-board temperature sensors, portable vibration meters, and a full complement of signal conditioners, switching junction boxes, and accessories to support data collection and machinery diagnostic applications. IMI s customers encompass many industries. Ford Motor Company Eastman Kodak Caterpillar Proctor & Gamble EI DuPont Champion Paper Valmet Praxair US Navy LTV Steel General Motors ALCOA Campbell s Soup USX Corporation Georgia Pacific Since 1967, PCB Piezotronics, Inc. has been a supplier of precision, piezoelectric sensors for dynamic acceleration, pressure and force measurement requirements. Recently, the addition of capacitive, piezoresistive, and strain-gage sensing technologies has propelled the company into DC acceleration, static pressure, load, and torque measurement applications. Unmatched customer service, state-of-the-art manufacturing capabilities, and world-wide distribution have contributed to the steady growth and success of PCB. Customers from industrial, governmental, commercial, educational, aerospace, automotive, medical, and R&D disciplines have all relied on PCB to deliver products and solutions for many demanding requirements. The IMI Sensors Division of PCB Piezotronics, Inc. is an integrated team created to address the specific sensor needs of those involved with the measurement of acceleration, motion, shock, and vibration under harsh factory conditions. Together, the Design, Engineering, Sales, Customer Service, and Marketing personnel within the IMI team draw upon the vast manufacturing resources within PCB to continually provide new, more powerful, sensing solutions. Please do not hesitate to call upon us to assist with your measurement requirements and extend our guarantee of Total Customer Satisfaction. In the interest of continuing product improvement, catalog specifications are subject to change without notice. Before machining tapped holes for installation, please request a copy of the item s detailed installation drawing. Registered trademarks of PCB Group, Inc. include: PCB, ICP, Swiveler, Spindler, Structcel, and Modally Tuned. All other trademarks are property of their respective owners. IMI Sensors Catalog IMI-600B-0202 Copyright 2002, PCB Group, Inc. PCB Quality is ISO-9001 certified PCB is an EOE/AAP Employer Printed in USA

3 IMI Sensors Division PCB Piezotronics, Inc. Services and Qualifications The IMI Sensors Division of PCB Piezotronics, Inc. guarantees Total Customer Satisfaction. If, at any time, for any reason, you are not completely satisfied with any IMI product, IMI will repair, replace, or exchange it at no charge. You may also choose, within the warranty period, to have your purchase price refunded. The IMI Sensors Division of PCB Piezotronics, Inc. offers a direct, toll-free telephone number for customer use. Feel free to call to discuss application requirements, request product literature, request price quotations, place orders, inquire about order status, expedite orders, troubleshoot equipment, or arrange for returns. International customers are invited to call In addition, we can be reached by at imi@pcb.com. Our fax number is: We look forward to hearing from you. IMI offers to all customers, at no charge, 24-hour emergency phone support. This service makes product and application support available to our customers, day or night, seven days per week. To reach an IMI SensorLine SM customer service representative, call Products are featured on IMI s web site The web site offers customers educational and technical information, as well as the latest product releases. Additionally, industrial sensors are featured with the ability to place an on-line order. You may also contact us via our general address at: imi@pcb.com. IMI is committed to making every effort possible to accommodate all delivery requests. Our extensive in-house production capabilities permit us to manufacture most products to order in a timely fashion. In the event that a specific model is unavailable in the time frame that you need, we can usually offer a comparable unit, for sale or loan, to satisfy your urgent requirements. Many products are available, from stock, for immediate shipment. Standard cable assemblies and accessory hardware items are always stocked for immediate shipment and IMI never requires a minimum order amount. If you have urgent requirements, call a factory representative and every effort will be made to fulfill your needs. IMI prides itself on being able to respond to customers needs. Heavy investment in machinery, capabilities, and personnel allow us to design, test, and manufacture products for specialized applications. Please contact an IMI customer service representative to discuss your special needs. Many IMI products are designed, tested, and qualified to bear CE marking in accordance with European Union EMC Directive. Products that have earned this qualification are so indicated by the logo. PCB Piezotronics, Inc. is registered by the Underwriters Laboratory, Inc. as an ISO 9001 facility and maintains a quality assurance system dedicated to resolving any concern to ensure Total Customer Satisfaction. PCB also conforms to the former MIL-STD and MIL-Q Instrumentation provided by IMI is covered by a limited warranty against defective material and workmanship for a period of one year. Contact IMI for a complete statement of our warranty. All IMI Sensors Division accelerometers are calibrated with full traceability to N.I.S.T. (National Institute of Standards & Technology) to ensure conformance to published specifications. Certificates of calibration are furnished that include actual measured data. Calibration systems utilized are kept in full compliance with ISO 9001 and ISO standards. Calibration methods are accredited by A2LA to ISO standards. IMI has made a reasonable effort to ensure that the specifications contained in this catalog were correct at the time of printing. In the interest of continuous product improvement, IMI reserves the right to change product specifications without notice at any time. Dimensions and specifications in this catalog may be approximate and for reference purposes only. Before installing sensors, machining any surfaces, or tapping any holes, contact an IMI application specialist to obtain a current installation drawing and the latest product specifications. IMI SENSORS DIVISION TOLL-FREE i

4 Numerical Model Number Index Model Number......Page Model Number......Page Model Number......Page 086C ,65 086C ,65 086C ,65 121A2X A3X A Series Series Series Series Series , Series B A A B A A A A A A AX ,18 602CX ,18 603CX ,3 604BX ,39 605BX ,41 606BX ,9 607AX ,5 608A A ,51,52 621B B B AX ,13 623CX ,21 623CX ,23 624AX ,18 625BX ,18 625BX ,15 625BX ,31 626AX ,33 626AX AX AX ,35 627AX ,18 628FX ,18 629AX ,43 629AX ,45 629M M A A AX ,58 640AX ,58 640AX ,58 641AX ,58 641AX ,58 641AX ,58 645AX ,58 645AX ,58 645AX ,58 646AX ,58 646AX ,58 646AX ,58 650AX ,62 650AX ,62 650AX ,62 650AX ,62 671A A A A A A Series A B B B A2X ,81 691B B B B B B B B B B A A A A A A A A HT622A HT623C HT624A HT625B HT628F VO622AX ,18 VO625AX ,18 VO626AX ,18 A WORD ABOUT SPECIAL MODELS... The products in this IMI Sensors Division catalog reflect the most current technology, best performance, broad representation of popular features, and excellent value. Many specialty options and custom products are not included in this publication. Customers are encouraged to make known their special requests, particularly for products that have served faithfully in the past. Consult an IMI factory application engineer for assistance in handling specialty or custom applications. ii 24-HOUR SENSORLINE SM WEBSITE

5 Table of Contents TYPICAL INDUSTRIAL VIBRATION SENSOR APPLICATIONS Aluminum Plants Automotive Manufacturing Balancing Bearing Analysis & Diagnostics Bearing Vibration Monitoring Bridges and Civil Structures Coal Processing Cold Forming Operations Concrete Processing Plants Condition Based Monitoring Compressors Cooling Towers Crushing Operations Diagnostics of Machinery Engines Floor Vibration Monitoring Food, Dairy & Beverage Foundations Gearbox Monitoring Geological Exploration Heavy Equipment & Machinery Helicopters Hull Vibration Monitoring HVAC Equipment Impact Measurements Impulse Response Machine Tools Machinery Condition Monitoring Machinery Frames Machinery Mount Monitoring Machinery Vibration Monitoring Manufacturing Mining Modal Analysis Motor Vibration Off-Road Equipment Paper Machinery Monitoring Petrochemical Pharmaceutical Power Generation Predictive Maintenance Printing Pulp and Paper Pumps Quality Control Seismic Monitoring Shipboard Machinery Shock Measurements Shredding Operations Site Vibration Surveys Slurry Pulsation Monitoring Spindle Vibration & Imbalance Squeak and Rattle Detection Steel & Metals Structure-Borne Noise Structural Testing Submersible Pumps Transportation Equipment Turbines Turbomachinery Underwater Pumps Vibrating Feeders Vibrating Screeners Vibration Control Vibration Isolation Water Treatment Plants Wastewater Treatment Plants IMI Division Catalog Contents Services and Qualifications i,iv Numerical Model Number Index ii Typical Industrial Vibration Monitoring Applications iii Accelerometer Selection Worksheet v Accelerometer Selection Guidelines vi-ix Accelerometer Summary Charts x-xii IMI Accelerometer Model Number Guide xiii Accelerometer Summary Tables xiv-xviii Options for Industrial Vibration Sensors xix-xxii Typical Industrial Vibration Measurement Systems xxiii-xxv PRODUCTS Low-Cost, Industrial ICP Accelerometers for Permanent Installation Accelerometers, Accelerometers with Temperature Output Precision Industrial ICP Accelerometers for Route-Based Measurements Accelerometers, Velocity Sensors, Temperature Output, Intrinsically Safe High Frequency Industrial ICP Accelerometers Small size, Intrinsically Safe Low Frequency Industrial ICP Accelerometers Seismic, Temperature Output Multi-Axis Industrial ICP Accelerometers Triaxial Accelerometers, Biaxial Accelerometers High Temperature Industrial Accelerometers ICP Accelerometers, Charge Mode Accelerometers 4-20 ma Vibration Sensing Transmitters Velocity Sensing Transmitters, Acceleration Sensing Transmitters DC Response, Industrial Capacitive Accelerometers Impact Hammers Dynamic Pressure Sensors Switch Boxes, Interface Boxes, and Enclosures Intrinsic Safety Barriers Signal Conditioners Battery Powered, Line Powered, Modular, Multi-Channel, Vibration Meters and Monitors, Charge Converters Accessory Equipment Cables, Connectors, Magnetic Bases, Mounting Hardware, Installation Tools, Portable Shakers APPENDIX Technical Information Selection and Implementation of Industrial Accelerometers Accelerometer Design and Operation Characteristics Using the Bias Voltage as a Diagnostic Tool Mounting Techniques Driving Long Cables Cable Driving Nomograph Conversions and Useful Formulas Article Reprints Glossary of Terms Other PCB Group Products and Services IBC IMI SENSORS DIVISION TOLL-FREE iii

6 IMI Sensors Division All Industrial Vibration Sensors are Not the Same... The IMI Sensors Division of PCB Piezotronics, Inc. is one of the leading manufacturers of industrial vibration sensors in the world today. This position has been gained by listening to customer s needs, delivering products in a timely manner, ensuring product quality through ISO 9001 certification and NIST traceable calibration, and offering customers a guarantee of Total Customer Satisfaction. There is never a risk when purchasing an IMI instrument. These are not just casual words printed on paper but rather a serious commitment to our customers. In order to achieve these goals, IMI draws upon the strengths, resources, and investments made by PCB Piezotronics, Inc. to become a premier instrumentation supplier. IMI sensors are manufactured in-house, from the ground up, utilizing an impressive array of equipment. State-of-the art, computer controlled, machining centers produce all the parts required to fabricate precision sensing elements, hermetically sealed connectors, and injection molded cabling. Microelectronic circuits are assembled and tested in a controlled, clean-room environment. Final sensor assembly is conducted by skilled technicians in an electrostatic discharge-safe area. Final assemblies are then sealed by laser welding and leak tested to ensure hermeticity. Calibrations are performed with full traceability to NIST on computer controlled, automated workstations. From start to finish, IMI is in control of the production process, which insures product quality, timely delivery, and the ability to offer custom designs. By not relying on outside sources of supply, the quality and delivery of your order is never compromised. PCB Piezotronics, Inc. is generally credited as being the company most responsible for applying microelectronic circuit technology to piezoelectric sensors. The term ICP (Integrated Circuit Piezoelectric) is a registered trademark of PCB Group, Inc. and uniquely identifies PCB sensors that incorporate built-in, signal conditioning microelectronics. This integral electronic, low output impedance technology has gained common acceptance in industry and has made possible today s widely used industrial accelerometers. IMI welcomes your visit to our facility or audit of our quality regimen. When considering a long-term machinery monitoring program, we urge you to compare vendors so that you become confident in your suppliers products and their availability to you over time. PCB s strong foundation in sensor manufacturing combined with IMI Sensors commitment to support industrial vibration sensing requirements guarantees IMI s viability to be your supplier for many years to come. iv 24-HOUR SENSORLINE SM WEBSITE

7 Accelerometer Selection Worksheet Accelerometer Selection Worksheet Answer the following questions as accurately as possible. This will help define the sensor best suited for a particular machine. Refer to the following pages (vi to ix) on Accelerometer Selection Guidelines, for detailed information regarding each of the questions below. 1. Measurement Range / Sensitivity Enter the highest overall acceleration level to be measured. g (m/sec 2 ) If < 10 g (98 m/sec 2 ), choose 100 mv/g (most commonly used). If > 10 g (98 m/sec 2 ), choose 10 mv/g. If < 0.001g ( m/sec 2 ), choose 500 m V/g. If monitoring slow speed machinery, <500 cpm (8 Hz ) or seismic (e.g., building or bridge vibrations), choose 500 mv/g or higher sensitivity. 2. Frequency Range Lowest frequency to be analyzed cpm (Hz) Highest frequency to be analyzed cpm (Hz) 3. Broadband Resolution (select the smallest of the two) Lowest vibration amplitude of interest µg (µm/sec 2 ) Smallest change in vibration level to be resolved µg (µm/sec 2 ) 4. Temperature Range (select one) Normal Temperature <250 F (121 C) High Temperature <325 F (162 C) Very High Temperature <500 F (260 C) Cryogenic (contact IMI) <-65 F (-54 C) 5. Size Maximum footprint allowable in (mm) Maximum height allowable (clearance) in (mm) 6. Duty (accuracy / sensitivity tolerance required) 7. Cable Integral cable required Yes No If Yes, enter length ft (m) Temperature Range: For -58 to 250 ºF (-50 to 121 ºC), use polyurethane jacketed cable, (Models 042 or 052) or equivalent. For -90 to 392 ºF (-70 to 200 ºC), use Teflon (FEP) jacketed cable, Model 053. For -130 to 500 ºF (-90 to 260 ºC), use Teflon (FEA) jacketed cable, Model 045. Armored Cable Required Yes No 8. Submersion If used in a submersed application up to 750 psi (51.7 bar), select an integral polyurethane cable (Models 042, 052, or 059). Note: Any accelerometer, whose model number includes a one (1) in the second to last character, is supplied with an integral polyurethane cable, (e.g. Model 623C10). See the IMI Accelerometer Model Number Guide on page xiii. 9. Intrinsically Safe / Explosion Proof Intrinsically safe required Yes No CS Canadian Standards Association Approved Intrinsically Safe EP Explosion Proof Condulet Enclosure EX CENELEC Approved Intrinsically Safe FM Factory Mutual Approved Intrinsically Safe MS Mine Safety Administration Approved Intrinsically Safe MX CENELEC Approved Intrinsically Safe for Mining Permanent mount Walk-a-round IMI SENSORS DIVISION TOLL-FREE v

8 Accelerometer Selection Guidelines Accelerometer Selection Guidelines There will usually be several accelerometer models that will meet the required measurement parameters, so the question naturally arises, which should be used? This section provides detailed explanations for the questions on the Accelerometer Selection Worksheet on page v. Use the information provided here to help answer the questions on the Worksheet as accurately as possible. This will result in a set of key specifications required for the accelerometer. Once these are obtained, use the Accelerometer Summary Charts on pages x to xii and the Accelerometer Summary Tables on pages xiv to xviii to locate sensors that meet the required criteria. For detailed specifications on these sensors, refer to the appropriate sections of the catalog. 1. Measurement Range / Sensitivity Determine the maximum peak vibration amplitude that will be measured and select a sensor with an appropriate measurement range. For a typical accelerometer, the maximum measurement range is equal to ±5 volts divided by the sensitivity. For example, if the sensitivity is 100 mv/g then the measurement range is (5 V / 0.1 V/g) = ±50 g. Allow some overhead in case the vibration is a little higher than expected. encompasses both the low and high frequencies of interest. In some rare cases, it may not be possible to measure the entire range of interest with a single accelerometer. In such a case, select the sensor that comes the closest to what is needed. High Frequency Caution Many machines, such as pumps, compressors, and some spindles, generate high frequencies beyond the measurement range of interest. Even though these vibrations are out of the range of interest, the accelerometer is still excited by them. Since high frequencies are usually accompanied by high accelerations, they will often drive higher sensitivity accelerometers (100 and 500 mv/g models) into saturation causing erroneous readings. If a significant high frequency vibration is suspected or if saturation occurs, a lower sensitivity (typically 10 or 50 mv/g) accelerometer should be used. For some applications, IMI offers higher sensitivity accelerometers with built-in low pass filters. These sensors filter out the unwanted high frequency signals and thus provide better amplitude resolution at the frequencies of interest. Contact an IMI Application Specialist for assistance if you experience this problem. 2. Frequency Range Determine the lowest and highest frequencies to be analyzed. If you are not sure what the upper frequency range should be, use the following table showing Recommended Frequency Spans as a guideline. Recommended Frequency Spans (Upper Frequency) vi Shaft Vibration x RPM Gearbox x GMF Rolling Element Bearings x BPFI Pumps x VP Motors / Generators x (2 x LF) Fans x BP Sleeve Bearings x RPM RPM Revolutions Per Minute GMF Gear Mesh Frequency BPFI Ball Pass Frequency Inner race VP Vane Pass frequency LF Line Frequency (60 Hz in USA) BP Blade Pass frequency The above table was taken from Eshleman, Ronald L., Basic Machinery Vibrations: An Introduction to Machine Testing, Analysis, and Monitoring, VIPress, Incorporated, 1999 p Select an accelerometer that has a frequency range that 24-HOUR SENSORLINE SM WEBSITE Typical Accelerometer Frequency Response Plot To determine if you have a condition that will overdrive (saturate) the accelerometer, look at the raw vibration signal in the time domain on a data collector, spectrum analyzer, or oscilloscope. Set the analyzer for a range greater than the maximum rated output of the accelerometer. If the amplitude exceeds the maximum rated measurement range of the accelerometer (typically 5 volts or 50 g for a 100 mv/g unit), then a lower sensitivity sensor should be selected. If the higher sensitivity sensor is used, clipping of the signal and saturation of the electronics is likely to occur. This will result in false harmonics, ski slope as well as many other serious measurement errors. 3. Broadband Resolution (Noise) Determine the amplitude resolution that is required. This will be the smaller of either the lowest vibration level or the smallest change in amplitude that must be measured. Select a sensor

9 Accelerometer Selection Guidelines that has a broadband resolution value equal to or less than this value. For example, if measuring a precision spindle with g minimum amplitude, choose an accelerometer with 100 µg or better resolution. If the known vibration levels are in velocity (in/s) or displacement (mils), convert the amplitudes to acceleration (g) at the primary frequencies. Note: The lower the resolution value, the better the resolution is. Generally, ceramic sensing elements have better resolutions (less noise) than do quartz. 4. Temperature Range Determine the highest and lowest temperatures that the sensor will be subjected to and verify that they are within the specified range for the sensor. Temperature Transients In environments where the accelerometer will be subjected to significant temperature transients, quartz sensors may achieve better performance than ceramic. Ceramic sensing elements are subject to the pyroelectric effect, which can cause significant changes in the sensitivity and result in erroneous outputs with changes in temperature. These outputs typically occur as drift (very low frequency) and usually cause significant ski slope in the velocity spectrum. Accelerometer temperature response curves, as shown below, are provided throughout this catalog. If temperature transients are suspected, refer to these graphs. 5. Size In many cases, the style of the sensor used can be restricted by the amount of space that is available on a machine to mount the sensor. There are typically two parameters that govern which sensors will fit, the footprint and the clearance. The footprint is the area covered by the base of the sensor. The clearance is the height above the surface required to fit the sensor and cable. As an example, a top exit sensor will require more clearance than a side exit model. Footprint (hex, length, width) and clearance (height) values are provided in this catalog. Space Constraints Select a sensor that will fit into the space that is available. Basic dimensions are provided in this catalog for that purpose. Caution: Before machining any surfaces or tapping any holes, contact IMI for a current installation drawing. One of the main reasons for different accelerometer designs (top exit, side exit, swivel mount, etc). is the need to fit the accelerometer into a particular space on a machine. For example, top exit models are typically more cost effective than side exit models but require much more clearance space than side exit models. Top Exit Requires More Clearance Typical Ceramic Accelerometer Temperature Response Typical Quartz Accelerometer Temperature Response Side Exit Requires Less Clearance IMI SENSORS DIVISION TOLL-FREE vii

10 Accelerometer Selection Guidelines Orientation Cable orientation is another consideration. Ring-style, side exit models can be oriented 360, however, in some very tight spaces, even these may be difficult to install. For example, there may not be enough height clearance to fit a wrench to tighten the unit. In that case, a Series 607A swivel mount style accelerometer may be required (see pages 4-5 for details). Side Exit Accelerometer vary between 80 and 120 mv/g. If the nominal sensitivity is used to convert to engineering units (e.g., the calibration used with a data collection device), then a looser tolerance sensor will be less accurate, in general, than a tighter tolerance model. However, if the actual calibration value that is supplied with the sensor is used, then both readings will be equally accurate. In applications were absolute accuracy is important (e.g., in acceptance testing) then either higher tolerance sensors or actual calibration factors should be used. Lower tolerance sensors are typically provided with a single point calibration rather than full calibration. This, coupled with the looser tolerance, helps keep costs down and allows them to be offered at a much more economical price. Normally, these sensors are selected for permanent mount applications where larger numbers of accelerometers are needed. Swivel Mount Accelerometer Cable rotates into any desired position Floating hex secures sensor to base mounting stud 6. Duty (Accuracy, Sensitivity Tolerance, and Safety) The duty refers to the type of use that a sensor will see. The most typical uses for predictive maintenance applications are either in a walk-around application, as with a portable data collector, or permanently mounted to a particular machine. In permanent mount applications, the sensor may terminate at a junction box where measurements are taken with a portable data collector or tied to an on-line monitoring system ma output sensors would usually be tied to existing plant systems such as a PLC. Sensitivity Tolerance (Absolute Accuracy) Sensitivity tolerance is the maximum deviation that the actual sensitivity of an accelerometer can vary from its published nominal sensitivity and still be within specification. IMI offers accelerometers with ± 5%, ± 10%, ± 15%, and ± 20% tolerances on sensitivity. Thus, a nominal 100 mv/g sensor with a ± 5% tolerance could have an actual sensitivity between 95 and 105 mv/g. A ± 20% tolerance unit could Repeatability All IMI sensors, regardless of their sensitivity tolerance, are very repeatable. That means, a given measurement will repeat time and again, thus giving very accurate trends. If trend data is of primary importance, any IMI sensor will work fine even when using the nominal sensitivity. Calibration Interval Due to the inherent stability of quartz, accelerometers with quartz sensing elements have a longer recommended calibration interval than do ceramic sensors. The recommended time between calibrations is 1 year for ceramic sensors and 5 years for quartz. As a practical matter, however, it may not be possible to send ceramic sensors in for yearly recalibration. As long as the sensor is permanently mounted and not going through severe thermal transients on a regular basis, its sensitivity should remain fairly stable. However, if it is seeing repeated shocks (as with magnetic mounting in a walk around system) or severe thermal transients, it is highly recommended that the sensor be recalibrated yearly. One advantage of quartz sensors is its long-term stability even in high shock and thermally transient environments. It may also be advantageous to purchase a portable shaker for in-place sensitivity verification. See the Model 699A02 Portable Shaker on page 118. Accessibility, Safety, and Production Considerations Monitoring locations on machines are often inaccessible due to shrouds, space constraints, or other physical obstacles. Additionally, they may be in hazardous areas or have limited access due to pressing production schedules. In cases like these, low-cost, permanent mount viii 24-HOUR SENSORLINE SM WEBSITE

11 Accelerometer Selection Guidelines accelerometers should be selected. This provides a fast, easy, and safe way to collect vibration data. When selecting these sensors, remember to also select the appropriate cabling, connectors, and switch or termination boxes. 7. Cable It is recommended, in most cases, that connector style accelerometers be used rather than ones with integral cable. Cables are very susceptible to damage and are usually the source of most sensor problems, therefore, it is much easier and more cost effective to replace a cable rather then the entire accelerometer/cable assembly. Integral cable models are recommended in submersible applications where sealing is of prime importance. Armored cable is recommended in applications where sharp objects could cut the cable, such as metal chips in machining operations. Integral Cable 8. Submersion If the accelerometer is used in a submersed application, it is generally recommended to use an integral cable. For submersed applications up to 750 psi (51.7 bar), select an integral polyurethane cable (IMI cable model numbers 042, 052, 059, or 062). Note: Any accelerometer, whose model number includes a one (1) in the second to last character, is supplied with an integral polyurethane cable (e.g., Model 623C10). 9. Intrinsically Safe / Explosion Proof Many sensor models are approved for use in hazardous areas when used with a properly installed intrinsic safety (I.S.) barrier. Approval authorities include Canadian Standards Association, CENELEC, Factory Mutual, and Mine Safety Administration. See the Accelerometer Summary Charts on pages x to xii or check the specification table of the sensor of interest to see which I.S. approvals are available for that model. If an I.S. sensor is selected, refer to the Intrinsic Safety Barriers section (pages 83-86) of this catalog to find the appropriate I.S. barrier. IMI 4-20 ma models are also available with an explosion proof condulet enclosure. 10. Factory Assistance When questions arise, do not hesitate to contact the factory to speak with an Application Specialist about your requirements. Armor Jacketed Integral Cable IMI SENSORS DIVISION TOLL-FREE ix

12 Accelerometer Summary Charts Standard Industrial ICP Accelerometers and Velocity Sensors Low Cost ICP Accelerometers with Single Point Calibration Quartz Ceramic Base Model of Sensor Series Shown (Most series are available with integral cable configuration) Sensor Style Top Exit Top Exit Low Profile Ring Swivel Mount Bi / Tri-Axial General Purpose Accelerometers Temperature Output Accelerometers Model Page Model Page Model Page Model Page Model Page Model Page Number Number Number Number Number Number Number Number Number Number Number Number 627A C 2 602C B 8 607A B (Tri) A (IC) 6 607A B (Bi) A (LF) A61 5 TO603A 3 TO602A 10 TO607A01 5 TO608A 6 T0607A11 5 TO601A 10 T0607A61 5 Notes: Bi Bi-axial accelerometer CH Charge output model (VHT) CS Canadian standards approved EP Explosion proof EX CENELEC approved FM Factory mutual approved HF High frequency models available IC Only available as integral cable model LF Low frequency models available RV Raw vibration signal out TO Temperature output models have both temperature and acceleration output Tri Tri-axial accelerometer VHF High frequency and very high frequency models available VLF Low frequency and very low frequency models available VHT Very high temperature x 24-HOUR SENSORLINE SM WEBSITE

13 Accelerometer Summary Charts Standard Industrial ICP Accelerometers and Velocity Sensors Precision ICP Accelerometers with Full Calibration Quartz Ceramic Base Model of Sensor Series Shown (Most series are available with integral cable configuration) Sensor Style Top Exit Ring Top Exit Ring Mini-Ring Miniature Multi-Axis General Purpose Accelerometers Temperature Output Accelerometers Velocity Output Sensors High Temperature Accelerometers Intrinsically Safe Accelerometers Intrinsically Safe, Velocity Output Sensors Notes: Bi Bi-axial accelerometer CH Charge output model (VHT) CS Canadian standards approved EP Explosion proof EX CENELEC approved Model Page Model Page Model Page Model Page Model Page Model Page Model Page Number Number Number Number Number Number Number Number Number Number Number Number Number Number 628F A A B 14,16,30 631A (HF) B40 (VHF) A 42,44 623C (HF) 20,22 635A01 (HF) B41 (VHF) M A (VLF) 32,34,36 621B51 (VHF) M06 46 TO624A 16 TO622A 13 TO625B 15,16,31 TO626A 33,36 VO622A 17 VO625A 17 VO626A 17 HT628F 49 HT624A 49 HT622A 48 HT625B 48 HT623C A (CH) 50,51,52 CS628F 16 CS622A 13 CS625B 15 CS623C 21,23 EX628F 16 EX622A 13 EX623C 21,23 FM628F 16 FM622A 13 FM625B 15 FM623C 21,23 MS622A 13 MX622A 13 CSVO622A 17 EXVO622A 17 FMVO622A 17 MXV0622A 17 FM Factory mutual approved HF High frequency models available IC Only available as integral cable model LF Low frequency models available RV Raw vibration signal out TO Temperature output models have both temperature and acceleration output Tri Tri-axial accelerometer VHF High frequency and very high frequency models available VLF Low frequency and very low frequency models available VHT Very high temperature IMI SENSORS DIVISION TOLL-FREE xi

14 Accelerometer Summary Charts Base Model of Sensor Series Shown (Most series are available with integral cable configuration) 4 20 ma Vibration Transmitters Capacitive Accelerometers Pk RMS RMS Velocity Velocity AccelerationDC Response Sensor Style Top Exit Top Exit Top Exit Top Exit Acceleration Output Sensors Velocity Output Sensors Intrinsically Safe Acceleration Output Sensors Explosion Proof Sensors Intrinsically Safe, Velocity Output Sensors Explosion Proof, Velocity Output Sensors Model Page Model Page Model Page Model Page Number Number Number Number Number Number Number Number 640A A 55 CS640A 54 CS641A 55 EX640A 54 EX641A 55 FM640A 54 FM641A 55 EP640A 54 EP641A A A 60, A 57 CS645A 56 CS646A 57 EX645A 56 EX646A 57 FM645A 56 FM646A 57 EP645A 56 EP646A 57 Raw Vibration Signal Out RV640A 54 RV641A 55 RV645A 56 RV646A 57 xii 24-HOUR SENSORLINE SM WEBSITE

15 IMI Accelerometer Model Number Guide IMI Accelerometer Model Number Guide Generic IMI Model Number Example: IMI Industrial Grade Sensor Revision Letter (A, B, C, etc.) 6NNXCS Sensitivity (10 mv/g, 100 mv/g, etc.) 0 10 mv/g mv/g mv/g 3 1 V/g 4 10 V/g 5 50 mv/g Industrial Accelerometer Series Number (601, 623, etc.) Electrical Connector / Integral Cable Type 0 2-Pin MIL 1 Integral polyurethane jacketed cable 2 Integral Teflon jacketed cable 3 Bayonet MIL Top exit Side exit 6 Integral armor jacketed polyurethane cable 7 Terminal block 8 Mini MIL Example: Model 623A A 1 0 Series 623 High Frequency Industrial ICP Accelerometer Revision A 10 mv/g Integral polyurethane cable IMI SENSORS DIVISION TOLL-FREE xiii

16 Accelerometer Summary Tables Low-Cost, Industrial ICP Accelerometers For Permanent Installation Series Sensitivity Frequency Amplitude Broadband Settling Temperature Connector Weight Page (Nominal) Range (± 3 db) Range Resolution Time Range Position 603CX1 100 mv/g 30 to 600k cpm ± 50 g 350 µg 2 sec -65 to +250 F top1.8 oz 2, 3 Ceramic 10.2 mv/(m/s 2 ) 0.5 to 10k Hz ± 490 m/s µm/s 2-54 to +121 C 51 gm 607AX1 100 mv/g 30 to 600k cpm ± 50 g 350 µg 2 sec -65 to +250 F side 0.78 oz 4, 5 Swiveler 10.2 mv/(m/s 2 ) 0.5 to 10k Hz ± 490 m/s µm/s 2-54 to +121 C 22 gm 608A mv/g 30 to 600k cpm ± 50 g 350 µg 2 sec -65 to +250 F top3.5 oz 6 Lowest Cost 10.2 mv/(m/s 2 ) 0.5 to 10k Hz ± 490 m/s µm/s 2-54 to +121 C cable only 99 gm 606BX1 100 mv/g 30 to 600k cpm ± 50 g 350 µg 2 sec -65 to +250 F side 4.4 oz 8, 9 Ring Style 10.2 mv/(m/s 2 ) 0.5 to 10k Hz ± 490 m/s µm/s 2-54 to +121 C 124 gm 601AX1 100 mv/g 16 to 600k cpm ± 50 g 50 µg 4 sec -65 to +250 F top2.8 oz 10 Low Noise 10.2 mv/(m/s 2 ) 0.27 to 10k Hz ± 490 m/s µm/s 2-54 to +121 C 80 gm 602CX1 100 mv/g 30 to 480k cpm ± 50 g 350 µg 2 sec -65 to +250 F side 2.75 oz 10 Through-hole 10.2 mv/(m/s 2 ) 0.5 to 8k Hz ± 490 m/s µm/s 2-54 to +121 C 78 gm 627AX1 100 mv/g 20 to 600k cpm ± 50 g 1000 µg 10 sec -65 to +250 F top3.3 oz 10 Quartz 10.2 mv/(m/s 2 ) 0.33 to 10k Hz ± 490 m/s µm/s 2-54 to +121 C 94 gm Precision Industrial ICP Accelerometers For Route-Based Measurements Series Sensitivity Frequency Frequency Amplitude Broadband Settling Temperature Connector Weight Page Range (± 10 %) Range (± 3 db) Range Resolution Time Range Position 622AX1 100 mv/g 25 to 300k cpm 12 to 600k cpm ± 50 g 50 µg 5 sec -65 to +250 F top 3.3 oz 12, 13 Ceramic 10.2 mv/(m/s 2 ) 0.42 to 5000 Hz 0.2 to 10k Hz ± 490 m/s µm/s 2-54 to +121 C 94 gm 625BX1 100 mv/g 22 to 450k cpm 12 to 630k cpm ± 50 g 50 µg 8 sec -65 to +250 F side 5.1 oz 14, 15 Ceramic Ring 10.2 mv/(m/s 2 ) 0.37 to 7500 Hz 0.2 to 10.5k Hz ± 490 m/s µm/s 2-54 to +121 C 145 gm 625BX0 10 mv/g 22 to 450k cpm 12 to 630k cpm ± 500 g 350 µg 8 sec -65 to +250 F side 5.1 oz 16, 18 High Range 1.02 mv/(m/s 2 ) 0.37 to 7500 Hz 0.2 to 10.5k Hz ± 4900 m/s µm/s 2-54 to +121 C 145 gm 628FX1 100 mv/g 40 to 390k cpm 20 to 720k cpm ± 50 g 1000 µg 10 sec -65 to +250 F top3.2 oz 16, 18 Quartz 10.2 mv/(m/s 2 ) 0.67 to 6500 Hz 0.33 to 12k Hz ± 490 m/s µm/s 2-54 to +121 C 91 gm 624AX1 100 mv/g 102 to 420k cpm 48 to 600k cpm ± 50 g 1000 µg 10 sec -65 to +250 F side 5.1 oz 16, 18 Quartz Ring 10.2 mv/(m/s 2 ) 1.7 to 7000 Hz 0.8 to 10k Hz ± 490 m/s µm/s 2-54 to +121 C 145 gm VO622AX1 100 mv/in/sec 240 to 270k cpm 180 to 540k cpm ± 50 in/s 450 µin/s 30 sec -65 to +250 F top3.3 oz 17, 18 Velocity 3937 mv/m/s 4 to 4500 Hz 3 to 9000 Hz ± 1.27 m/s 11.4 µm/s -54 to +121 C 93 gm VO625AX1 100 mv/in/sec 120 to 150k cpm 90 to 360k cpm ± 50 in/s 400 µin/s 30 sec -65 to +250 F side 7.6 oz 17, 18 Velocity 3937 mv/m/s 2 to 2500 Hz 1.5 to 6000 Hz ± 1.27 m/s 10.6 µm/s -54 to +121 C 215 gm VO626AX1 100 mv/in/sec 120 to 150k cpm 90 to 360k cpm ± 50 in/s 300 µin/s 30 sec -65 to +250 F top7.8 oz 17, 18 Velocity 3937 mv/m/s 2 to 2500 Hz 1.5 to 6000 Hz ± 1.27 m/s 7.62 µm/s -54 to +121 C 221 gm xiv 24-HOUR SENSORLINE SM WEBSITE

17 Accelerometer Summary Tables High Frequency Industrial ICP Accelerometers Series Sensitivity Frequency Frequency Amplitude Broadband Settling Temperature Connector Weight Page Range (± 10 %) Range (± 3 db) Range Resolution Time Range Position 623CX0 10 mv/g 102 to 600k cpm 48 to 900k cpm ± 500 g 300 µg 3 sec -65 to +250 F top1.8 oz 20, 21 Rugged 1.02 mv/(m/s 2 ) 1.7 to 10k Hz 0.8 to 15k Hz ± 4900 m/s µm/s 2-54 to +121 C 51 gm 623CX1 100 mv/g 102 to 600k cpm 48 to 900k cpm ± 50 g 100 µg 2 sec -65 to +250 F top1.8 oz 22, 23 Rugged 10.2 mv/(m/s 2 ) 1.7 to 10k Hz 0.8 to 15k Hz ± 490 m/s µm/s 2-54 to +121 C 51 gm 621B40 10 mv/g 204 to 1080k cpm 96 to 1800k cpm ± 500 g 1200 µg 3 sec -65 to +250 F top0.1 oz 24 Miniature 1.02 mv/(m/s 2 ) 3.4 to 18k Hz 1.6 to 30k Hz ± 4900 m/s µm/s 2-54 to +121 C 2.8 gm 621B mv/g 102 to 900k cpm 48 to 1200k cpm ± 50 g 100 µg 5 sec -65 to +250 F top1.06 oz 25 Lightweight 10.2 mv/(m/s 2 ) 1.7 to 15k Hz 0.8 to 20k Hz ± 490 m/s µm/s 2-54 to +121 C 30 gm 621B mv/g 102 to 900k cpm 48 to 1200k cpm ± 50 g 100 µg 5 sec -65 to +250 F side 1.06 oz 26 Lightweight 10.2 mv/(m/s 2 ) 1.7 to 15k Hz 0.8 to 20k Hz ± 490 m/s µm/s 2-54 to +121 C 30 gm 631A80 10 mv/g 68 to 840k cpm 32 to 960k cpm ± 500 g 450 µg 3 sec -65 to +250 F side 2.12 oz 27 Ring 1.02 mv/(m/s 2 ) 1.1 to 14k Hz 0.53 to 16k Hz ± 4900 m/s µm/s 2-54 to +121 C 60 gm 635A mv/g 68 to 720k cpm 32 to 900k cpm ± 50 g 240 µg 2 sec -65 to +250 F side 3.0 oz 28 Ring 10.2 mv/(m/s 2 ) 1.1 to 12k Hz 0.53 to 15k Hz ± 490 m/s µm/s 2-54 to +121 C 86 gm Low Frequency Industrial ICP Accelerometers Series Sensitivity Frequency Frequency Amplitude Broadband Settling Temperature Connector Weight Page Range (± 10 %) Range (± 3 db) Range Resolution Time Range Position 625BX2 500 mv/g 22 to 240k cpm 12 to 360k cpm ± 10 g 15 µg 4.5 sec -65 to +250 F side 6.1 oz 30, mv/(m/s 2 ) 0.37 to 4000 Hz 0.2 to 6000 Hz ± 98 m/s µm/s 2-54 to +121 C 173 gm 626AX1 100 mv/g 18 to 420k cpm 12 to 600k cpm ± 50 g 100 µg 5 sec -65 to +250 F top5.3 oz 32, mv/(m/s 2 ) 0.3 to 7000 Hz 0.2 to 10k Hz ± 490 m/s µm/s 2-54 to +121 C 150 gm 626AX4 10 V/g 4 to 18k cpm 2 to 30k cpm ± 0.5 g 0.5 µg 5 min 0 to F top22 oz 34, V/(m/s 2 ) 0.07 to 300 Hz 0.03 to 500 Hz ± 4.9 m/s 2 5 µm/s 2-18 to +65 C 624 gm 626AX2 500 mv/g 18 to 240k cpm 12 to 360k cpm ± 10 g 15 µg 5 sec -65 to +250 F top7.4 oz mv/(m/s 2 ) 0.3 to 4000 Hz 0.2 to 6000 Hz ± 98 m/s µm/s 2-54 to +121 C 210 gm 626AX mv/g 18 to 240k cpm 12 to 360k cpm ± 5 g 10 µg 10 sec -65 to +250 F top7.4 oz mv/(m/s 2 ) 0.3 to 4000 Hz 0.2 to 6000 Hz ± 49 m/s 2 98 µm/s 2-54 to +121 C 210 gm Multi-Axis Industrial ICP Accelerometers Series Sensitivity Frequency Frequency Amplitude Broadband Settling Temperature Connector Weight Page Range (± 10 %) Range (± 3 db) Range Resolution Time Range Position 604BX1 100 mv/g 30 to 300k cpm ± 50 g 350 µg 2 sec -65 to +250 F side 4.4 oz 38, 39 Triaxial 10.2 mv/(m/s 2 ) N/A 0.5 to 5000 Hz ± 490 m/s µm/s 2-54 to +121 C 124 gm 605BX1 100 mv/g 30 to 300k cpm ± 50 g 350 µg 2 sec -65 to +250 F side 4.4 oz 40, 41 Biaxial 10.2 mv/(m/s 2 ) N/A 0.5 to 5000 Hz ± 490 m/s µm/s 2-54 to +121 C 124 gm 629AX1 100 mv/g 102 to 300k cpm 48 to 480k cpm ± 50 g 100 µg 3 sec -65 to +250 F side 4.9 oz 42, 43 Triaxial 10.2 mv/(m/s 2 ) 1.7 to 5000 Hz 0.8 to 8000 Hz ± 490 m/s µm/s 2-54 to +121 C 139 gm 629AX2 500 mv/g 102 to 300k cpm 48 to 480k cpm ± 10 g 120 µg 2 sec -65 to +200 F side 4.9 oz 44, 45 Triaxial 51 mv/(m/s 2 ) 1.7 to 5000 Hz 0.8 to 8000 Hz ± 98 m/s µm/s 2-54 to +94 C 139 gm 629M mv/g 120 to 420k cpm ± 50 g 560 µg 3.0 sec -65 to +250 F top4.3 oz 46 Triaxial 10.2 mv/g N/A 2 to 7000 Hz ± 490 m/s µm/s 2-54 to +121 C cable 135 gm 629M mv/g 90 to 360k cpm 48 to 720k cpm ± 50 g 560 µg 3.5 sec -65 to +250 F side 5.7 oz 46 Triaxial 10.2 mv/(m/s 2 ) 1.5 to 6000 Hz 0.8 to 12k Hz ± 490 m/s µm/s 2-54 to +121 C 163 gm IMI SENSORS DIVISION TOLL-FREE xv

18 Accelerometer Summary Tables High Temperature Industrial ICP Accelerometers Model Sensitivity Frequency Frequency Amplitude Broadband Settling Temperature Connector Weight Page Range (± 10 %) Range (± 3 db) Range Resolution Time Range Position HT622A mv/g 25 to 300k cpm 12 to 480k cpm ± 50 g 150 µg 5 sec -65 to +325 F top3.3 oz 48 Ceramic 10.2 mv/(m/s 2 ) 0.42 to 5000 Hz 0.2 to 8000 Hz ± 490 m/s 2-54 to +163 C 93 gm HT623C mv/g 102 to 540k cpm 48 to 900k cpm ± 50 g 300 µg 1 sec -65 to +325 F top1.8 oz 48 High Freq mv/(m/s 2 ) 1.7 to 9000 Hz 0.8 to 15k Hz ± 490 m/s 2-54 to +163 C 51 gm HT625B mv/g 22 to 360k cpm 12 to 600k cpm ± 50 g 200 µg 8 sec -65 to +325 F side 5.1 oz 48 Low Freq mv/(m/s 2 ) 0.37 to 6000 Hz 0.2 to 10k Hz ± 490 m/s 2-54 to +163 C 145 gm HT628F mv/g 102 to 300k cpm 48 to 480k cpm ± 50 g 1000 µg 3 sec -65 to +325 F top3.2 oz 49 Quartz 10.2 mv/(m/s 2 ) 1.7 to 5000 Hz 0.8 to 8000 Hz ± 490 m/s 2-54 to +163 C 91 gm HT624A mv/g 102 to 180k cpm 48 to 300k cpm ± 50 g 1000 µg 3 sec -65 to +325 F side 5.1 oz 49 Quartz Ring 10.2 mv/(m/s 2 ) 1.7 to 3000 Hz 0.8 to 5000 Hz ± 490 m/s 2-54 to +163 C 145 gm High Temperature, Charge-Mode, Industrial Accelerometer Kits MODEL Sensitivity Frequency Frequency Amplitude Broadband Settling Temperature Connector Weight Page Range (± 10 %) Range (± 3 db) Range Resolution Time Range (Sensor) Position (Sensor) 600A06 10 mv/g 100 to 180k cpm 60 to 600k cpm ± 250 g 410 µg 15 sec -65 to +500 F top2.95 oz mv/(m/s 2 ) 1.67 to 3000 Hz 1 to 10k Hz ± 2452 m/s 2-54 to +260 C 84 gm 600A08 10 mv/g 100 to 180k cpm 60 to 600k cpm ± 250 g 410 µg 15 sec -65 to +500 F top2.95 oz mv/(m/s 2 ) 1.67 to 3000 Hz 1 to 10k Hz ± 2452 m/s 2-54 to +260 C 84 gm 600A mv/g 100 to 180k cpm 60 to 600k cpm ± 25 g 120 µg 15 sec -65 to +500 F top2.95 oz mv/(m/s 2 ) 1.67 to 3000 Hz 1 to 10k Hz ± 245 m/s 2-54 to +260 C 84 gm 600A mv/g 100 to 180k cpm 60 to 600k cpm ± 25 g 120 µg 15 sec -65 to +500 F top2.95 oz mv/(m/s 2 ) 1.67 to 3000 Hz 1 to 10k Hz ± 245 m/s 2-54 to +260 C 84 gm 600A mv/g 100 to 180k cpm 60 to 600k cpm ± 2.5 g 120 µg 15 sec -65 to +500 F top2.95 oz mv/(m/s 2 ) 1.67 to 3000 Hz 1 to 10k Hz ± 24.5 m/s 2-54 to +260 C 84 gm 600A mv/g 100 to 180k cpm 60 to 600k cpm ± 2.5 g 120 µg 15 sec -65 to +500 F top2.95 oz mv/(m/s 2 ) 1.67 to 3000 Hz 1 to 10k Hz ± 24.5 m/s 2-54 to +260 C 84 gm High Temperature, Charge-Mode, Industrial Accelerometer Model Sensitivity Frequency Frequency Shock Temperature Connector Weight Page Range (± 5 %) Range (± 3 db) Limit Range (Sensor) Position (Sensor) 612A01 26 pc/g 300k cpm 600k cpm 5000 g pk -65 to +500 F top 2.95 oz 50, pc/m/s Hz 10k Hz 49k m/s 2 pk -54 to +260 C 84 gm xvi 24-HOUR SENSORLINE SM WEBSITE

19 Accelerometer Summary Tables 4-20 ma Vibration Sensing Transmitters Model Current Measured Frequency Amplitude Broadband Settling Temperature Connector Weight Page Output Parameter Range (± 10 %) Range Resolution Time Range Position 640AX0 4 to 20 ma Peak Velocity 180 to 60k cpm 0 to 0.5 in/s pk in/s pk 60 sec -40 to +185 F top3.17 oz 54 3 to 1000 Hz 0 to 12.7 mm/s pk 0.13 mm/s pk -40 to +85 C 90 gm 640AX1 4 to 20 ma Peak Velocity 180 to 60k cpm 0 to 1.0 in/s pk in/s pk 60 sec -40 to +185 F top3.17 oz 54 3 to 1000 Hz 0 to 25.4 mm/s pk 0.13 mm/s pk -40 to +85 C 90 gm 640AX2 4 to 20 ma Peak Velocity 180 to 60k cpm 0 to 2.0 in/s pk 0.01 in/s pk 60 sec -40 to +185 F top3.17 oz 54 3 to 1000 Hz 0 to 50.8 mm/s pk 0.26 mm/s pk -40 to +85 C 90 gm 641AX0 4 to 20 ma RMS Velocity 600 to 60k cpm 0 to 0.5 in/s rms in/s rms 60 sec -40 to +185 F top3.17 oz to 1000 Hz 0 to 12.7 mm/s rms 0.13 mm/s rms -40 to +85 C 90 gm 641AX1 4 to 20 ma RMS Velocity 600 to 60k cpm 0 to 1.0 in/s rms in/s rms 60 sec -40 to +185 F top3.17 oz to 1000 Hz 0 to 25.4 mm/s rms 0.13 mm/s rms -40 to +85 C 90 gm 641AX2 4 to 20 ma RMS Velocity 600 to 60k cpm 0 to 2.0 in/s rms 0.01 in/s rms 60 sec -40 to +185 F top3.17 oz to 1000 Hz 0 to 50.8 mm/s rms 0.26 mm/s rms -40 to +85 C 90 gm 645AX0 4 to 20 ma RMS Acceleration 180 to 60k cpm 0 to 5 g rms g rms 30 sec -40 to +185 F top3.17 oz 56 3 to 1000 Hz 0 to 49 m/s 2 rms 0.24 m/s 2 rms -40 to +85 C 90 gm 645AX1 4 to 20 ma RMS Acceleration 180 to 300k cpm 0 to 5 g rms g rms 30 sec -40 to +185 F top3.17 oz 56 3 to 5000 Hz 0 to 49 m/s 2 rms 0.24 m/s 2 rms -40 to +85 C 90 gm 645AX2 4 to 20 ma RMS Acceleration 180 to 600k cpm 0 to 5 g rms g rms 30 sec -40 to +185 F top3.17 oz 56 3 to 10k Hz 0 to 49 m/s 2 rms 0.24 m/s 2 rms -40 to +85 C 90 gm 646AX0 4 to 20 ma RMS Acceleration 180 to 60k cpm 0 to 10 g rms 0.05 g rms 30 sec -40 to +185 F top3.17 oz 57 3 to 1000 Hz 0 to 98.1 m/s 2 rms 0.5 m/s 2 rms -40 to +85 C 90 gm 646AX1 4 to 20 ma RMS Acceleration 180 to 300k cpm 0 to 10 g rms 0.05 g rms 30 sec -40 to +185 F top3.17 oz 57 3 to 5k Hz 0 to 98.1 m/s 2 rms 0.5 m/s 2 rms -40 to +85 C 90 gm 646AX2 4 to 20 ma RMS Acceleration 180 to 600k cpm 0 to 10 g rms 0.05 g rms 30 sec -40 to +185 F top3.17 oz 57 3 to 10k Hz 0 to 98.1 m/s 2 rms 0.5 m/s 2 rms -40 to +85 C 90 gm DC Response, Industrial Capacitive Accelerometers Series Sensitivity Frequency Frequency Amplitude Broadband Temperature Connector Weight Page Range (± 5 %) Range (± 10 %) Range Resolution Range Position 650AX0 10 mv/g 0 to 48k cpm 0 to 60k cpm ± 200 g pk 450 µg rms -40 to +185 F top 2.7 oz mv/(m/s 2 ) 0 to 800 Hz 0 to 1000 Hz ± 1960 m/s 2 pk 4410 µm/s 2 rms -40 to +85 C 77 gm 650AX5 50 mv/g 0 to 27k cpm 0 to 36k cpm ± 50 g pk 120 µg rms -40 to +185 F top 2.7 oz mv/(m/s 2 ) 0 to 450 Hz 0 to 600 Hz ± 490 m/s 2 pk 1180 µm/s 2 rms -40 to +85 C 77 gm 650AX1 100 mv/g 0 to 18k cpm 0 to 30k cpm ± 20 g pk 80 µg rms -40 to +185 F top 2.7 oz mv/(m/s 2 ) 0 to 300 Hz 0 to 500 Hz ± 196 m/s 2 pk 800 µm/s 2 rms -40 to +85 C 77 gm 650AX mv/g 0 to 6000 cpm 0 to 9000 cpm ± 3 g pk 30 µg rms -40 to +185 F top 2.7 oz mv/(m/s 2 ) 0 to 100 Hz 0 to 150 Hz ± 29 m/s 2 pk 295 µm/s 2 rms -40 to +85 C 77 gm IMI SENSORS DIVISION TOLL-FREE xvii

20 Accelerometer Summary Tables Intrinsically Safe Industrial ICP Accelerometers (See Pages for I.S. Barriers) Series Sensitivity Frequency Frequency Amplitude Broadband Settling Temperature Connector Weight Page Range (± 10 %) Range (± 3 db) Range Resolution Time Range Position 622AX1* 100 mv/g 25 to 300k cpm 12 to 600k cpm ± 50 g 50 µg 5 sec -65 to +250 F top3.3 oz 12, 13 Ceramic 10.2 mv/(m/s 2 ) 0.42 to 5000 Hz 0.2 to 10k Hz ± 490 m/s µm/s 2-54 to +121 C 94 gm 625BX1** 100 mv/g 22 to 450k cpm 12 to 630k cpm ± 50 g 50 µg 8 sec -65 to +250 F side 5.1 oz 14, 15 Ceramic Ring 10.2 mv/(m/s 2 ) 0.37 to 7500 Hz 0.2 to 10.5k Hz ± 490 m/s µm/s 2-54 to +121 C 145 gm 628FX1 100 mv/g 40 to 390k cpm 20 to 720k cpm ± 50 g 1000 µg 10 sec -65 to +250 F top3.2 oz 16 Quartz 10.2 mv/(m/s 2 ) 0.67 to 6500 Hz 0.33 to 12k Hz ± 490 m/s µm/s 2-54 to +121 C 91 gm VO622AX1 100 mv/in/sec 240 to 270k cpm 180 to 540k cpm ± 50 in/s 450 µin/s 30 sec -65 to +250 F top3.3 oz 17 Velocity 3937 mv/m/s 4 to 4500 Hz 3 to 9000 Hz ± 1.27 m/s 11.4 µm/s -54 to +121 C 93 gm 623CX0 10 mv/g 102 to 600k cpm 48 to 900k cpm ± 500 g 300 µg 3 sec -65 to +250 F top1.8 oz 20, 21 High Freq mv/(m/s 2 ) 1.7 to 10k Hz 0.8 to 15k Hz ± 4900 m/s µm/s 2-54 to +121 C 51 gm 623CX1 100 mv/g 102 to 600k cpm 48 to 900k cpm ± 50 g 100 µg 2 sec -65 to +250 F top1.8 oz 22, 23 High Freq mv/(m/s 2 ) 1.7 to 10k Hz 0.8 to 15k Hz ± 490 m/s µm/s 2-54 to +121 C 51 gm NOTES: * Available approvals are: CS-Canadian Standards Association, EX-CENELEC, FM-Factory Mutual, MS-Mine Safety and Health Administration, and MX-CENELEC for mining ** Available approvals are: CS-Canadian Standards Association and FM-Factory Mutual Available approvals are: CS-Canadian Standards Association, EX-CENELEC, and FM-Factory Mutual Available approvals are: CS-Canadian Standards Association, EX-CENELEC, FM-Factory Mutual, and MX-CENELEC for mining In addition, all 4-20 ma vibration sensing transmitters (Series 640) offer CS-Canadian Standards Association, EX-CENELEC, and FM-Factory Mutual approvals. See pages 53 to 58. Velocity Output Industrial ICP Sensors Series Sensitivity Frequency Frequency Amplitude Broadband Settling Temperature Connector Weight Page Range (± 10 %) Range (± 3 db) Range Resolution Time Range Position VO622AX1 100 mv/in/sec 240 to 270k cpm 180 to 540k cpm ± 50 in/s 450 µin/s 30 sec -65 to +250 F top3.3 oz 17, 18 High Freq mv/m/s 4 to 4500 Hz 3 to 9000 Hz ± 1.27 m/s 11.4 µm/s -54 to +121 C 93 gm VO625AX1 100 mv/in/sec 120 to 150k cpm 90 to 360k cpm ± 50 in/s 400 µin/s 30 sec -65 to +250 F side 7.6 oz 17, 18 Ring 3937 mv/m/s 2 to 2500 Hz 1.5 to 6000 Hz ± 1.27 m/s 10.6 µm/s -54 to +121 C 215 gm VO626AX1 100 mv/in/sec 120 to 150k cpm 90 to 360k cpm ± 50 in/s 300 µin/s 30 sec -65 to +250 F top7.8 oz 17, 18 Low Freq mv/m/s 2 to 2500 Hz 1.5 to 6000 Hz ± 1.27 m/s 7.62 µm/s -54 to +121 C 221 gm xviii 24-HOUR SENSORLINE SM WEBSITE

21 Options for Industrial Vibration Sensors How to Specify an Option It is often desirable to incorporate various options in an accelerometer to enhance or improve its performance for a given application. To designate an option for a specific model, first check to ensure that it is available by finding the option prefix letter in the model s specification chart. The prefix letter is then inserted in front of the model number to designate the option (e.g.,to622a01). Note: More than one option may be designated (e.g., FMVO622A01). The following descriptions address the impact any option may have on specifications and performance. If in doubt about the compatibility of any option for the accelerometer model of interest, or the effects any option may introduce for your application, call a factory application engineer for assistance. Brief Description of Option Letters The tables on the following pages (xx-xxii) describe each of the options listed below in greater detail. CS Canadian Standards Association Approved Intrinsically Safe EP Explosion Proof Condulet Enclosure EX CENELEC Approved Intrinsically Safe F* Operation from 220 VAC Power FM Factory Mutual Approved Intrinsically Safe HT High Temperature Operation LB Low Bias Operation M Metric Installation MO* Multiple Output MS Mine Safety Administration Approved Intrinsically Safe MX CENELEC Approved Intrinsically Safe for Mining per I M2 EEx ia I PS* Painted Steel Enclosure RV Raw Vibration (Analog Acceleration) Output Signal R* Rechargeable (includes AC powered recharger and rechargeable batteries) SS* Stainless Steel Enclosure TO Temperature Output Signal VO Velocity Output Signal XSS* 316L Stainless Steel Enclosure * Designates an option available for electronic products for which detailed descriptions appear in the product section. IMI SENSORS DIVISION TOLL-FREE xix

22 Options for Industrial Vibration Sensors Option CS Canadian Standards Association Approved Intrinsically Safe (e.g., CS622A01) For use in hazardous areas, the CS option designates a vibration sensor that has been certified by the Canadian Standards Association as intrinsically safe, when used with a properly installed, intrinsic safety barrier in the following environments: CSA Approved Hazardous Environments Division 1 Continuous or Intermittent Hazards Class 1 Gasses and Vapors Group A Acetylene Group B Hydrogen Group C Ethylene Group D Methane Temperature Code T4 135 C -maximum surface temperature Option EP Explosion Proof Condulet Enclosure (e.g., EP640A01) For use in hazardous areas, the EP option designates a condulet enclosure atop the vibration sensor to protect the electrical connection of the sensor and furnish a threaded connection for interface to conduit. The housing of the vibration sensor is physically altered with threads for connection of the condulet enclosure. Option EX CENELEC Approved Intrinsically Safe (e.g., EX622A01) For use in hazardous areas, the EX option designates a vibration sensor that has been certified by CENELEC, the European Committee for Electrotechnical Standardization as intrinsically safe, when used with a properly installed, intrinsic safety barrier in the following environments: CENELEC Approved Hazardous Environments Division 1 Continuous or Intermittent Hazards EEx Code Letter ia Same as Zone 0, 1, and 2 Zone 0 Continuous Hazard Zone 1 Intermittent Hazard Zone 2 Hazards under abnormal conditions Class IIC Acetylene Temperature Code T4 135 C -maximum surface temperature xx 24-HOUR SENSORLINE SM WEBSITE

23 Options for Industrial Vibration Sensors Option FM Factory Mutual Approved Intrinsically Safe (e.g., FM622A01) For use in hazardous areas, the FM option designates a vibration sensor that has been certified by Factory Mutual as intrinsically safe, when used with a properly installed, intrinsic safety barrier in the following environments: FM Approved Hazardous Environments Division 1 Continuous or Intermittent Hazards Class 1 Gasses and Vapors Group A Acetylene Group B Hydrogen Group C Ethylene Group D Methane Class 2 Dusts Group EMetal Dust Group F Coal Dust Group G Grain Dust Class 3 Fibers (no sub groups) Temperature Code T4 135 C -maximum surface temperature Option HT High Temperature Operation (e.g., HT622A01) An adjustment to the built-in microelectronic circuitry permits sensor operation to temperatures that exceed the normal operating temperature range. Typically, the frequency range of the sensor is somewhat compromised and the output impedance is raised to <500 ohm. Check with the factory to determine the allowable high temperature capability for a specific model and the impact this option will have on frequency range. Option LB Low Bias Operation (e.g., LB622A01) An adjustment to the built-in microelectronic circuitry reduces the output bias voltage to approximately 4.5 to 6.5 VDC. This permits the sensor to operate from a reduced, minimum, excitation voltage of 9 VDC. This may be desirable when incorporating an accelerometer into an OEM system and the voltage available for excitation is limited. Also, some vibration data collectors, readout devices, or analyzers, that incorporate excitation power, may provide only a lower voltage than the 18 VDC that is normally recommended for standard sensors. The low bias option limits the amplitude range of the sensor to ± 3 volts output. For example, a 100 mv/g accelerometer, with low bias operation, becomes limited to a ± 30 g range. Option M Metric Installation (e.g., M603C01) This option permits installation of the vibration sensor into a tapped hole having a metric thread. It simply designates a change in the supplied mounting stud, screw, or bolt. Metric mounting studs are adaptor studs that have an english thread on the end that screws into the sensor base, and a metric thread on the other end that screws into the test specimen. Metric screws or bolts are used for through-hole mounted sensors. IMI SENSORS DIVISION TOLL-FREE xxi

24 Options for Industrial Vibration Sensors Option MS Mine Safety Administration Approved Intrinsically Safe (e.g., MS622A01) For use in hazardous areas, the MS option designates a vibration sensor that has been certified by the United States Department of Labor, Mine Safety and Health Administration as intrinsically safe, when used with a properly installed, intrinsic safety barrier in the following environments: MSHA Approved Hazardous Environments Division 1 Continuous or Intermittent Hazards Class 1 Gasses and Vapors Group D Methane Class 2 Dusts Group F Coal Dust Option MX CENELEC Approved Intrinsically Safe for Mining per I M2 EEx ia I (e.g., MX622A01) For hazardous area use, the MX option designates a vibration sensor that has been certified by CENELEC as intrinsically safe, when used with a properly installed, intrinsic safety barrier in the following environments: Division 1 EEx CENELEC For Mining Approved Hazardous Environments Continuous or Intermittent Hazards Code Letter ia Same as Zone 0, 1, and 2 Zone 0 Continuous Hazard Zone 1 Intermittent Hazard Zone 2 Hazards under abnormal conditions Group I Methane Equipment Group I Category M-2 Temperature Code T4 135 C -maximum surface temperature Option RV Raw Vibration (Analog Acceleration) Output Signal (e.g., RV640A01) For 4-20 ma vibration sensing transmitters, the RV option provides a third connector pin, or integral cable lead, upon which the analog acceleration signal is present and available for readout, recording, frequency analysis, and diagnostic purposes. Pin A: ma Pin B: ma Pin C: Analog Acceleration (Sensor connector shown) Option TO Temperature Output Signal (e.g., TO622AX1) This option adds a built-in temperature sensor and third connector pin, or integral cable lead, upon which a 10 mv/ C temperature output signal is present. (Sensor connector shown) Pin A: Signal/Power Pin B: Common Pin C: Temperature Output Option VO Velocity Output Signal (e.g., VO622A01) This option adds a built-in signal integrator for converting the analog acceleration signal into an analog velocity signal. Often, velocity is the vibration measurement parameter of choice for machinery vibration monitoring applications. xxii 24-HOUR SENSORLINE SM WEBSITE

25 Typical Industrial Vibration Measurement Systems Industrial vibration sensors are implemented into measurement systems in a number of different ways. The installation technique typically falls into one of two categories, either permanently mounted, or carried from point to point in a route based measurement or analysis scheme. The entire measurement system, however, can take on a variety of forms, depending on sensor type used and the goal of the monitoring program. This section highlights many of the popular or recommended approaches, which comprise complete industrial vibration measurement and monitoring systems. Typical Point to Point, Route Based, Vibration Data Collection System Precision Industrial Accelerometer Sensor to Data Collector Cable Magnetic Mounting Base Vibration Data Collector Typical Inaccessible Motor Monitoring System Permanently Installed, Low-Cost Accelerometers for Axial and Radial Vibration Monitoring Switch Box Sensor to Data Collector Cable Vibration Data Collector Sensor Cables Typical Diagnostic or Analysis System Sensor Cable Output Cable Precision Industrial ICP Accelerometer ICP Sensor Signal Conditioner FFT Analyzer, Recorder, or Data Acquisition System IMI SENSORS DIVISION TOLL-FREE xxiii

26 Typical Industrial Vibration Measurement Systems Typical Continuous Analog Signal Monitoring System Junction Box with Multiple Output Option Multiplexor Control and Interface Cables Permanently Installed, Low-Cost Accelerometers for Axial and Radial Motor Vibration Monitoring Sensor Cables Multi-Channel Cable Monitoring System with Spectrum Enveloping and Alarming Typical 4-20 ma, Continuous Vibration Level, Monitoring System Sensor Cable 4-20 ma Vibration Sensor PLC, DCS, Alarm, or SCADA System Typical 4-20 ma Vibration Transmitter System 4-20 ma Signal Cable Permanently Installed, Low-Cost, ICP Accelerometer Sensor Cable PLC, DCS, Alarm, or SCADA System Vibration Transmitter, Analog Signal Input, 4-20 ma and Analog Signal Outputs Analog Signal Cable Vibration Data Collector or FFT Analyzer for Signal Analysis and Diagnostic Purposes Typical 4-20 ma, Continuous Vibration Level, Monitoring System with Diagnostic Capability 4-20 ma Vibration Sensor with Optional Simultaneous Analog Output Signal (Option RV ) 4-20 ma Signal Analog Signal PLC, DCS, Alarm, or SCADA System for Continuous Monitoring Vibration Data Collector or FFT Analyzer for Signal Analysis and Diagnostic Purposes xxiv 24-HOUR SENSORLINE SM WEBSITE

27 Typical Industrial Vibration Measurement Systems Typical Intrinsically Safe Installation Hazardous Area Safe Area Sensor Cable Output Cable Approved, Intrinsically Safe Accelerometer Vibration Data Collector or Analyzer with ICP Sensor Power Intrinsic Safety Barrier Typical High Temperature, Charge-Mode, Sensor Kit Installation High Temperature Zone Charge Converter Charge Mode Industrial Accelerometer Low-Noise, High Temperature Cable Output Cable Vibration Data Collector or Analyzer with ICP Sensor Power Typical System for Vibration Sensor with Simultaneous Temperature Output Option Industrial Accelerometer with Simultaneous Temperature Output Option 3 or 4-conductor Sensor Cable Two-Channel Vibration and Temperature Data Collector Typical Multi-Channel, Simultaneous Vibration and Temperature Monitoring System Permanently Installed, Low- Cost Accelerometers, with Temperature Output Option, for Axial and Radial Vibration Monitoring, and Bearing Temperature Monitoring 3 or 4-conductor Sensor Cables Switch Box Sensor to Data Collector Cable Two-Channel Vibration and Temperature Data Collector IMI SENSORS DIVISION TOLL-FREE xxv

28 Industrial Accelerometer Applications Technicians connect a vibration data collector to an IMI Junction Box to gather measurement data from industrial accelerometers located in inaccessible areas. Monitoring vibration levels of critical pieces of machinery will lead to further productivity and reduced costs. Maintenance requirements can be pin-pointed, planned for, and scheduled during routine shut downs rather than being faced with an unplanned outage or catastrophic system failure. xxvi 24-HOUR SENSORLINE SM WEBSITE

29 Low-Cost, Industrial ICP Accelerometers For Permanent Installation Low profile designs 100 mv/g sensitivities Top or side exit connector versions Hermetically sealed construction Long distance signal transmission Swiveler, Spindler, ring, and through-hole styles for ease of connector orientation Single frequency N.I.S.T. traceable calibration Optional temperature output signal Low-cost, industrial ICP accelerometers are recommended for permanent installation onto machinery to satisfy vibration trending requirements in Predictive Maintenance and Condition Monitoring applications. Lower cost is achieved by relaxing the tolerance on sensitivity from unit to unit and by calibrating at only one reference frequency point, typically 100 Hz. Measurement accuracy is compromised only if the sensor s nominal sensitivity is used. If the provided single-point sensitivity is used, accuracy is very good. Since low-cost sensors carry a wider sensitivity tolerance, the actual measurement obtained using the nominal sensitivity value may not be as quantitatively accurate as could be achieved if one uses the supplied reference sensitivity value. This disparity, however, may be irrelevant since when trending, the user is primarily interested in recognizing changes in the overall measured vibration amplitude, or frequency signature of the machinery. When comparing against previously acquired data obtained with the same sensor in the same location, the excellent repeatability of these piezoelectric vibration sensors becomes the vital attribute for successful trending requirements. The user benefits by being able to employ a lower cost sensor, which in turn, makes monitoring additional measurement points a more attractive undertaking. Within this category, the Swiveler series of accelerometers is offered. The unique mounting capability of these sensors permits the cable or connector to be oriented in any direction, which simplifies installation and reduces overall size. When small size is paramount, you will want to consider the Swiveler. The Spindler accelerometer offers unique advantages for high-speed spindle vibration monitoring applications. Offering swivel mounting for ease of installation, the Spindler also includes a sealed, armored, integral cable which stands up against cutting fluids and flying metal chips. In addition, electronic filtering prevents saturation problems while maintaining the ability to respond to high frequency vibrations. PCB IMI SM Sensors Division toll-free FAX imi@pcb.com Website 1

30 Low-Cost, Industrial ICP Accelerometers For Permanent Installation Series 603CX1 100 mv/g sensitivity Small size High frequency Top exit connectors Model 603C01 with 2-pin, threaded military connector Dimensions shown are in inches (millimeters). Actual Size Model 603C01 Specifications Dynamic Performance English SI Sensitivity (± 20%) 100 mv/g 10.2 mv/(m/s 2 ) Measurement Range ± 50 g ± 490 m/s 2 Broadband Resolution (1 to 10k Hz) 350 µg 3434 µm/s 2 Frequency Range (± 3 db) 30 to 600k cpm 0.5 to 10k Hz Mounted Resonant Frequency 1500k cpm 25k Hz Amplitude Linearity ± 1% ± 1% Transverse Sensitivity 7% 7% Environmental Shock Limit 5,000 g pk 49k m/s 2 pk Temperature Range -65 to +250 F -54 to +121 C Electrical Settling Time 2.0 sec 2.0 sec Discharge Time Constant 0.3 sec 0.3 sec Excitation Voltage 18 to 28 VDC 18 to 28 VDC Excitation Constant Current 2 to 20 ma 2 to 20 ma Output Impedance < 150 ohm < 150 ohm Output Bias Voltage 8 to 12 VDC 8 to 12 VDC Electrical Case Isolation > 10 8 ohm > 10 8 ohm Mechanical Size (hex height) 11/ in 11/16 in 42 mm Weight 1.8 oz 51 gm Mounting Thread 1/4-28 UNF-2B 1/4-28 UNF-2B Mounting Torque 2 to 5 ft-lb 2.7 to 6.8 N-m Sensing Element ceramic/shear ceramic/shear Case Material stainless steel stainless steel Sealing (welded) hermetic IP68 Electrical Connector, 2-pin (top) MIL-C-5015 MIL-C-5015 Supplied Accessories Model 081A40 Mounting Stud (1) Single Point Calibration at 100 Hz (NIST traceable) Options (indicate using prefix letter shown) M Metric installation via supplied M081A61 stud, 1/4-28 to M6 1.0 TO Temperature Output available on alternate configurations: Models TO603A01, TO603A11, and TO603A61. Specifications may vary consult factory Series 603CX1 Frequency Response Series 603CX1 Sensitivity Deviation vs. Temperature 2 24-HOUR SENSORLINE SM WEBSITE

31 Low-Cost, Industrial ICP Accelerometers For Permanent Installation Series 603CX1 additional base model configurations Model 603C11 with integral, 10 ft (3 m) polyurethane cable Model 603C21 with integral, 10 ft (3 m) Teflon cable Model 603C31 with 3-pin, bayonet military connector Model 603C61 with integral, 10 ft (3 m) steel-armored, polyurethane cable Available models in this series Accelerometers Accelerometers with additional temperature output signal of 10 mv/ ºC Two-pin, threaded military connector 603C01 TO603A01* Integral, 10 ft (3 m) polyurethane cable 603C11 TO603A11* Integral, 10 ft (3 m) Teflon cable 603C21 Three-pin, bayonet military connector 603C31 Integral, 10 ft (3 m) steel-armored, polyurethane cable 603C61 TO603A61* Options (indicate using prefix letter shown) M Metric installation via supplied M081A61 stud, 1/4-28 to M6 1.0 NOTES: * Alternate configuration, specifications may vary consult factory Model TO603A01 has a 3-pin, threaded military connector to accommodate the additional temperature output signal. IMI SENSORS DIVISION TOLL-FREE

32 Low-Cost, Industrial ICP Accelerometers For Permanent Installation Series 607AX1 Swivel mount simplifies installation Cable may be positioned in any direction 100 mv/g sensitivity Small size High frequency Side exit connectors The Swiveler Patent pending Model 607A11 with integral, 10 ft (3 m) polyurethane cable Dimensions shown are in inches (millimeters). Actual Size Model 607A11 Specifications Dynamic Performance English SI Sensitivity (± 15%) 100 mv/g 10.2 mv/(m/s 2 ) Measurement Range ± 50 g ± 490 m/s 2 Broadband Resolution (1 to 10k Hz) 350 µg 3434 µm/s 2 Frequency Range (± 3 db) 30 to 600k cpm 0.5 to 10k Hz Mounted Resonant Frequency 1500k cpm 25k Hz Amplitude Linearity ± 1% ± 1% Transverse Sensitivity 7% 7% Environmental Shock Limit 5,000 g pk 49k m/s 2 pk Temperature Range -65 to +250 F -54 to +121 C Electrical Settling Time 2 sec 2 sec Discharge Time Constant 0.3 sec 0.3 sec Excitation Voltage 18 to 28 VDC 18 to 28 VDC Excitation Constant Current 2 to 20 ma 2 to 20 ma Output Impedance < 150 ohm < 150 ohm Output Bias Voltage 8 to 12 VDC 8 to 12 VDC Electrical Case Isolation > 10 8 ohm > 10 8 ohm Mechanical Size (hex height) 9/ in 9/16 in 24.6 mm Weight (excluding cable) 0.78 oz 22 gm Mounting Thread 1/4-28 UNF-2A 1/4-28 UNF-2A Mounting Torque (mounting stud) 7 to 8 ft-lb 9.5 to 10.8 N-m Mounting Torque (sensor hex nut) 2 to 5 ft-lb 2.7 to 6.8 N-m Sensing Element ceramic/shear ceramic/shear Case Material stainless steel stainless steel Sealing (welded) hermetic IP68 Electrical Connector, 2-cond. (side) 10 ft int. cable 3 m int. cable Supplied Accessories Model 080A156 Mounting Stud (1) Single Point Calibration at 100 Hz (NIST traceable) Options (indicate using prefix letters shown) M Metric installation via supplied 080A159 stud, 1/2-20 to M6 1.0 TO Temperature Output Additional Versions (indicate using model number shown) 607A11/020BZ 20 ft (6.1 m) integral cable length 607A11/030BZ 30 ft (9.1 m) integral cable length Series 607AX1 Frequency Response Series 607AX1 Sensitivity Deviation vs. Temperature 4 24-HOUR SENSORLINE SM WEBSITE

33 Low-Cost, Industrial ICP Accelerometers For Permanent Installation Series 607AX1 additional base model configurations The Swiveler Patent pending Actual Size With rugged, 2-pin military connector Connector may be positioned in any direction Model 607A01 with 2-pin, threaded military connector The Spindler Patent pending Ideal for high-speed spindle vibration monitoring Cable may be positioned in any direction Sealed, armored cable is protected from fluids and flying metal chips Internal electronic filter prevents high frequency saturation problems Actual Size Model 607A61 with integral, 10 ft (3 m) steel-armored, polyurethane cable Available models in this series Accelerometers Accelerometers with additional temperature output signal of 10 mv/ ºC Two-pin, threaded military connector 607A01 TO607A01* Integral, 10 ft (3 m) polyurethane cable 607A11 TO607A11 Integral, 10 ft (3 m) steel-armored, polyurethane cable 607A61 TO607A61 Options (indicate using prefix letter shown) M Metric installation. M607A01 via supplied 080A163 stud, 3/4-16 to M M607A11 and M607A61 via supplied 080A159 stud, 1/2-20 to M6 1.0 NOTES: * Model TO607A01 has a 3-pin, threaded military connector to accommodate the additional temperature output signal. IMI SENSORS DIVISION TOLL-FREE

34 Low-Cost, Industrial ICP Accelerometers For Permanent Installation Model 608A mv/g sensitivity Small size High frequency Molded, integral top exit cable Model 608A11 with integral, 10 ft (3 m) polyurethane cable Dimensions shown are in inches (millimeters). Actual Size Model 080A165 floating hex nut slides over integral cable and engages with Model 080A162 mounting stud. Permits installation and removal of sensor without turning or twisting integral cables. Model 080A162 mounting stud installs onto machine surface and engages with Model 080A165 floating hex nut. Model 608A11 Specifications Dynamic Performance English SI Sensitivity (± 20%) 100 mv/g 10.2 mv/(m/s 2 ) Measurement Range ± 50 g ± 490 m/s 2 Broadband Resolution (1 to 10k Hz) 350 µg 3434 µm/s 2 Frequency Range (± 3 db) 30 to 600k cpm 0.5 to 10k Hz Mounted Resonant Frequency 1320k cpm 22k Hz Amplitude Linearity ± 1% ± 1% Transverse Sensitivity 7% 7% Environmental Shock Limit 5,000 g pk 49k m/s 2 pk Temperature Range -65 to +250 F -54 to +121 C Electrical Settling Time 2 sec 2 sec Discharge Time Constant 0.3 sec 0.3 sec Excitation Voltage 18 to 28 VDC 18 to 28 VDC Excitation Constant Current 2 to 20 ma 2 to 20 ma Output Impedance < 150 ohm < 150 ohm Output Bias Voltage 8 to 12 VDC 8 to 12 VDC Electrical Case Isolation > 10 8 ohm > 10 8 ohm Mechanical Size (hex height) 9/ in 9/16 in 63.5 mm Weight (including 10 ft (3 m) cable) 3.5 oz 99 gm Mounting Thread 1/4-28 UNF-2B 1/4-28 UNF-2B Mounting Torque 2 to 5 ft-lb 2.7 to 6.8 N-m Sensing Element ceramic/shear ceramic/shear Case Material stainless steel stainless steel Sealing (molded) hermetic IP68 Electrical Connector, 2-cond. (top) 10 ft int. cable 3 m int. cable Supplied Accessories Model 081A40 Mounting Stud (1) Single Point Calibration at 100 Hz (NIST traceable) Optional Accessories Model 080A165 Floating Hex Nut Model 080A162 Mounting Stud Available Versions Model 608A11/020BZ 20 ft (6.1 m) integral cable length Model 608A11/030BZ 30 ft (9.1 m) integral cable length Options (indicate using prefix letter shown) M Metric installation via supplied M081A61 stud, 1/4-28 to M6 1.0 TO Temperature Output Model 608A11 Frequency Response Model 608A11 Sensitivity Deviation vs.temperature 6 24-HOUR SENSORLINE SM WEBSITE

35 Mounting Instructions For Swiveler and Low Cost Sensors with Optional Hardware Series 607AXX Swiveler mounting concept Permits cable to be oriented into any desired position Permits mounting and dismounting without twisting sensor and integral cable Speeds sensor dismount for routine sensitivity verification or system troubleshooting Figure 1 A mounting hole is prepared into the machine surface to accept the sensor s mounting stud. Figure 2 The mounting stud is tightened to the recommended torque with an appropriately sized hex Allen key. Figure 3 The sensor s floating hex nut is threaded onto the mounting stud. The cable or connector is positioned into the desired orientation and the hex nut is hand-tightened. Figure 4 Using a torque wrench, the hex nut is tightened to the recommended torque while holding the cable or connector in the desired location. Figure 5 Upon removal, if the mounting stud does not disengage from the sensor, use a flat head screwdriver to hold the stud while turning the hex nut counter-clockwise with a wrench. Model 608A11 instructions for use of optional mounting hardware Permits mounting and dismounting without twisting sensor and integral cable Speeds sensor dismount for routine sensitivity verification or system troubleshooting Figure 1 A mounting hole is prepared into the machine surface to accept the sensor s mounting stud. The sensor s integral cable is threaded through the floating hex nut. Figure 2 The mounting stud is tightened to the recommended torque with an appropriately sized hex Allen key. Figure 3 The sensor s floating hex nut is threaded onto the mounting stud and tightened to the recommended torque. Figure 4 Upon removal, if the mounting stud does not disengage from the sensor, use a flat head screwdriver to hold the stud while turning the hex nut counter-clockwise with a wrench. IMI SENSORS DIVISION TOLL-FREE

36 Low-Cost, Industrial ICP Accelerometers For Permanent Installation Series 606BX1 100 mv/g sensitivity Ring style, side exit connectors Connector may be positioned in any direction Model 606B01 with 2-pin, threaded military connector Actual Size Model 606B01 Specifications Dynamic Performance English SI Sensitivity (± 20%) 100 mv/g 10.2 mv/(m/s 2 ) Measurement Range ± 50 g ± 490 m/s 2 Broadband Resolution (1 to 10k Hz) 350 µg 3434 µm/s 2 Frequency Range (± 3 db) 30 to 600k cpm 0.5 to 10k Hz Mounted Resonant Frequency 1500k cpm 25k Hz Amplitude Linearity ± 1% ± 1% Transverse Sensitivity 7% 7% Environmental Shock Limit 5,000 g pk 49k m/s 2 pk Temperature Range -65 to +250 F -54 to +121 C Electrical Settling Time 2.0 sec 2.0 sec Discharge Time Constant 0.3 sec 0.3 sec Excitation Voltage 18 to 28 VDC 18 to 28 VDC Excitation Constant Current 2 to 20 ma 2 to 20 ma Output Impedance < 150 ohm < 150 ohm Output Bias Voltage 8 to 12 VDC 8 to 12 VDC Electrical Case Isolation > 10 8 ohm > 10 8 ohm Mechanical Size (diameter height) in mm Weight 4.4 oz 124 gm Mounting Thread 1/4-28 UNF-2A 1/4-28 UNF-2A Mounting Torque 2 to 5 ft-lb 2.7 to 6.8 N-m Sensing Element ceramic/shear ceramic/shear Case Material stainless steel stainless steel Sealing (welded) hermetic IP68 Electrical Connector, 2-pin (side) MIL-C-5015 MIL-C-5015 Supplied Accessories Model 081A68 Mounting Bolt (1) Single Point Calibration at 100 Hz (NIST traceable) Options (indicate using prefix letter shown) M Metric installation via supplied M081A68 bolt, M6 1.0 thread Dimensions shown are in inches (millimeters). Series 606BX1 Frequency Response Series 606BX1 Sensitivity Deviation vs. Temperature 8 24-HOUR SENSORLINE SM WEBSITE

37 Low-Cost, Industrial ICP Accelerometers For Permanent Installation Series 606BX1 additional base model configurations Model 606B11 with integral, 10 ft (3 m) polyurethane cable Model 606B21 with integral, 10 ft (3 m) Teflon cable Model 606B31 with 3-pin, bayonet military connector Model 606B61 with integral, 10 ft (3 m) steel-armored, polyurethane cable Available models in this series Two-pin, threaded military connector Integral, 10 ft (3 m) polyurethane cable Integral, 10 ft (3 m) Teflon cable Three-pin, bayonet military connector Integral, 10 ft (3 m) steel-armored, polyurethane cable Options (indicate using prefix letter shown) M Metric installation via supplied M081A68 bolt, M6 1.0 thread Accelerometers 606B01 606B11 606B21 606B31 606B61 IMI SENSORS DIVISION TOLL-FREE

38 Low-Cost, Industrial ICP Accelerometers For Permanent Installation Dimensional drawings on page 18 Additional Low-Cost, Industrial ICP Accelerometers Series 601AX1 Series 602CX1 Series 627AX1 Dynamic Performance English SI English SI English SI Sensitivity 100 mv/g (± 20%) 10.2 mv/(m/s 2 ) 100 mv/g (± 20%) 10.2 mv/(m/s 2 ) 100 mv/g (± 15%) 10.2 mv/(m/s 2 ) Measurement Range ± 50 g ± 490 m/s 2 ± 50 g ± 490 m/s 2 ± 50 g ± 490 m/s 2 Broadband Resolution (1 to 10k Hz) 50 µg 491 µm/s µg 3434 µm/s µg 9800 µm/s 2 Frequency Range (± 3 db) 16 to 600k cpm 0.27 to 10k Hz 30 to 480k cpm 0.5 to 8000 Hz 20 to 600k cpm 0.33 to 10k Hz Mounted Resonant Frequency 960k cpm 16k Hz 1500k cpm 25k Hz 1080k cpm 18k Hz Amplitude Linearity ± 1% ± 1% ± 1% ± 1% ± 1% ± 1% Transverse Sensitivity 7% 7% 7% 7% 5% 5% Environmental Low Noise Through-hole Mount Quartz Element Shock Limit 5,000 g pk 49k m/s 2 pk 5,000 g pk 49k m/s 2 pk 5,000 g pk 49k m/s 2 pk Temperature Range -65 to +250 F -54 to +121 C -65 to +250 F -54 to +121 C -65 to +250 F -54 to +121 C Electrical Settling Time 4.0 sec 4.0 sec 2.0 sec 2.0 sec 10 sec 10 sec Discharge Time Constant 0.6 sec 0.6 sec 0.3 sec 0.3 sec 0.5 sec 0.5 sec Excitation Voltage 18 to 28 VDC 18 to 28 VDC 18 to 28 VDC 18 to 28 VDC 18 to 28 VDC 18 to 28 VDC Excitation Constant Current 2 to 20 ma 2 to 20 ma 2 to 20 ma 2 to 20 ma 2 to 20 ma 2 to 20 ma Output Impedance < 150 ohm < 150 ohm < 150 ohm < 150 ohm < 100 ohm < 100 ohm Output Bias Voltage 8 to 12 VDC 8 to 12 VDC 8 to 12 VDC 8 to 12 VDC 8 to 12 VDC 8 to 12 VDC Electrical Case Isolation > 10 8 ohm > 10 8 ohm > 10 8 ohm > 10 8 ohm > 10 8 ohm > 10 8 ohm Electrical Protection RFI/ESD RFI/ESD Mechanical Size 7/8 hex 1.94 in 7/8 in hex 49.3 mm in mm 7/8 hex 2.06 in 7/8 in hex 52.3 mm Weight 2.8 oz 80 gm 2.75 oz 78 gm 3.3 oz 94 gm Mounting Thread 1/4-28 UNF-2B 1/4-28 UNF-2B 1/4-28 UNF-2A 1/4-28 UNF-2A 1/4-28 UNF-2B 1/4-28 UNF-2B Mounting Torque 2 to 5 ft-lb 2.7 to 6.8 N-m 2 to 5 ft-lb 2.7 to 6.8 N-m 2 to 5 ft-lb 2.7 to 6.8 N-m Sensing Element ceramic/shear ceramic/shear ceramic/shear ceramic/shear quartz/shear quartz/shear Case Material stainless steel stainless steel stainless steel stainless steel stainless steel stainless steel Sealing (welded) hermetic IP68 hermetic IP68 hermetic IP68 Electrical Connector, 2-pin MIL-C-5015 (top) MIL-C-5015 (top) MIL-C-5015 (side) MIL-C-5015 (side) MIL-C-5015 (top) MIL-C-5015 (top) Supplied Accessories Mounting Stud or Bolt Model 081A40 (1) Model 081A97 (1) Model 081A40 (1) Calibration (NIST traceable) Single Point at 100 Hz Single Point at 100 Hz Single Point at 100 Hz Available Versions Two-pin, Threaded Military Connector 601A01 602C01 627A01 Integral, 10 ft (3 m) Polyurethane Cable 601A11 602C11 627A11 Integral, 10 ft (3 m) Teflon Cable 601A21 602C21 627A21 Three-pin, Bayonet Military Connector 601A31 602C31 627A31 Integral, 10 ft (3 m) Steel-Armored Cable 601A61 602C61 627A61 Two-socket Terminal Block 601A71 627A71 Options (indicate using prefix letter shown) Metric Installation M* M M* Temperature Output TO TO NOTES: * via supplied M081A61 stud, 1/4-28 to M6 1.0 via supplied M081A97 bolt, M6 1.0 thread TO601A01, TO601A11, TO601A61 versions only available as alternate configurations: TO602A01, TO602A11, and TO602A61, specifications may vary consult factory HOUR SENSORLINE SM WEBSITE

39 Precision Industrial ICP Accelerometers For Route-Based Measurements Interface directly with vibration data collectors Ideal for FFT analysis of vibration frequencies Measurements for machinery diagnostics Versions with velocity output, temperature output, and hazardous area approvals Precision industrial ICP accelerometers are recommended for route-based vibration data collection and quantitative diagnostic measurements on industrial machinery. These sensors are directly compatible with most commercially available vibration data collectors and FFT analyzers that supply excitation power for ICP sensors. These precision, shear-structured sensors offer tighter sensitivity tolerances than low-cost series units and are supported with full NIST traceable calibration data that encompasses an extensive frequency range. All units are laser welded and leak tested to ensure a true hermetic seal. Shock protection to 5000 g (49k m/s 2 ) guards against damage due to accidental overloads. A host of available options including velocity output, temperature output, and hazardous area approvals adapt the units for virtually any machinery vibration monitoring requirement. PCB IMI SM Sensors Division toll-free FAX imi@pcb.com Website 11

40 Precision Industrial ICP Accelerometers For Route-Based Measurements Series 622AX1 100 mv/g sensitivity Top exit connectors 50 micro g resolution Model 622A01 with 2-pin, threaded military connector Dimensions shown are in inches (millimeters). Actual Size Model 622A01 Specifications Dynamic Performance English SI Sensitivity (± 5%) 100 mv/g 10.2 mv/(m/s 2 ) Measurement Range ± 50 g ± 490 m/s 2 Broadband Resolution (1 to 10k Hz) 50 µg 491 µm/s 2 Frequency Range: (± 5%) 35 to 240k cpm 0.58 to 4000 Hz (± 10%) 25 to 300k cpm 0.42 to 5000 Hz (± 3 db) 12 to 600k cpm 0.2 to 10k Hz Mounted Resonant Frequency 1200k cpm 20k Hz Amplitude Linearity ± 1% ± 1% Transverse Sensitivity 5% 5% Environmental Shock Limit 5,000 g pk 49k m/s 2 pk Temperature Range -65 to +250 F -54 to +121 C Electrical Settling Time 5 sec 5 sec Discharge Time Constant 0.8 sec 0.8 sec Excitation Voltage 18 to 28 VDC 18 to 28 VDC Excitation Constant Current 2 to 20 ma 2 to 20 ma Output Impedance < 100 ohm < 100 ohm Output Bias Voltage 8 to 12 VDC 8 to 12 VDC Electrical Case Isolation > 10 8 ohm > 10 8 ohm Electrical Protection RFI/ESD RFI/ESD Mechanical Size (hex height) 7/ in 7/8 in 52.3 mm Weight 3.3 oz 94 gm Mounting Thread 1/4-28 UNF-2B 1/4-28 UNF-2B Mounting Torque 2 to 5 ft-lb 2.7 to 6.8 N-m Sensing Element ceramic/shear ceramic/shear Case Material stainless steel stainless steel Sealing (welded) hermetic IP68 Electrical Connector, 2-pin (top) MIL-C-5015 MIL-C-5015 Supplied Accessories Model 081A40 Mounting Stud (1) Full Calibration from 600 to 240k cpm (NIST traceable) Options (indicate using prefix letter shown) CS, EX, MS, MX, FM Intrinsically Safe HT High Temperature operation (see pages 47-52) LB Low Bias electronics for operation from 12 to 28 VDC excitation voltage M Metric installation via supplied M081A61 stud, 1/4-28 to M6 1.0 TO Temperature Output VO Velocity Output (see pages 17 and 18 for specifications and drawings) Series 622AX1 Frequency Response Series 622AX1 Sensitivity Deviation vs. Temperature HOUR SENSORLINE SM WEBSITE

41 Precision Industrial ICP Accelerometers For Route-Based Measurements Series 622AX1 additional base model configurations Model 622A11 with integral, 10 ft (3 m) polyurethane cable Model 622A21 with integral, 10 ft (3 m) Teflon cable Model 622A31 with 3-pin, bayonet military connector Model 622A61 with integral, 10 ft (3 m) steel-armored, polyurethane cable Available models in this series Accelerometers Accelerometers with Intrinsically Safe Velocity Intrinsically Safe Temperature Output Accelerometers Sensors Velocity Sensors Two-pin, threaded military connector 622A01 TO622A01* CS, EX, MS, MX, or FM622A01 VO622A01 CS, EX, MX, or FMVO622A01 Integral, 10 ft (3 m) polyurethane cable 622A11 TO622A11 CS, EX, MS, MX, or FM622A11 VO622A11 CS, EX, MX, or FMVO622A11 Integral, 10 ft (3 m) Teflon cable 622A21 VO622A21 Three-pin, bayonet military connector 622A31 CS, EX, MS or FM622A31 VO622A31 Integral, 10 ft (3 m) steel-armored cable 622A61 TO622A61 VO622A61 Options (indicate using prefix letter shown) LB Low Bias electronics for operation from 12 to 28 VDC excitation voltage M Metric installation via supplied M081A61 stud, 1/4-28 to M6 1.0 NOTES: * Model TO622A01 features a 3-pin, threaded military connector to accommodate the additional temperature output signal. See pages 17 and 18 for Velocity Sensor specifications and drawings. Intrinsically safe accelerometers and velocity sensors require the use of an intrinsic safety barrier. See pages 83 to 86 for details. Available approvals are: CS Canadian Standards, EX CENELEC, MS Mine Safety Administration, MX CENELEC for mining, FM Factory Mutual. IMI SENSORS DIVISION TOLL-FREE

42 Precision Industrial ICP Accelerometers For Route-Based Measurements Series 625BX1 100 mv/g sensitivity Ring style, side exit connectors Connector may be positioned in any direction 50 micro g resolution Model 625B01 with 2-pin, threaded military connector Dimensions shown are in inches (millimeters). Actual Size Model 625B01 Specifications Dynamic Performance English SI Sensitivity (± 5%) 100 mv/g 10.2 mv/(m/s 2 ) Measurement Range ± 50 g ± 490 m/s 2 Broadband Resolution (1 to 10k Hz) 50 µg 491 µm/s 2 Frequency Range: (± 5%) 30 to 390k cpm Hz (± 10%) 22 to 450k cpm 0.37 to 7500 Hz (± 3 db) 12 to 630k cpm 0.2 to 10.5k Hz Mounted Resonant Frequency 1500k cpm 25k Hz Amplitude Linearity ± 1% ± 1% Transverse Sensitivity 5% 5% Environmental Shock Limit 5,000 g pk 49k m/s 2 pk Temperature Range -65 to +250 F -54 to +121 C Electrical Settling Time 8.0 sec 8.0 sec Discharge Time Constant 1.0 sec 1.0 sec Excitation Voltage 18 to 28 VDC 18 to 28 VDC Excitation Constant Current 2 to 20 ma 2 to 20 ma Output Impedance < 100 ohm < 100 ohm Output Bias Voltage 8 to 12 VDC 8 to 12 VDC Electrical Case Isolation > 10 8 ohm > 10 8 ohm Mechanical Size (diameter height) in mm Weight 5.1 oz 145 gm Mounting Thread 1/4-28 UNF-2A 1/4-28 UNF-2A Mounting Torque 2 to 5 ft-lb 2.7 to 6.8 N-m Sensing Element ceramic/shear ceramic/shear Case Material stainless steel stainless steel Sealing (welded) hermetic IP68 Electrical Connector, 2-pin (side) MIL-C-5015 MIL-C-5015 Supplied Accessories Model 081A73 Mounting Bolt (1) Model 080B45 Thermal Boot (1) Full Calibration from 600 to 390k cpm (NIST traceable) Options (indicate using prefix letter shown) CS, FM Intrinsically Safe LB Low Bias electronics for operation from 12 to 28 VDC excitation voltage M Metric installation via supplied M081A73 bolt, M6 1.0 thread TO Temperature Output VO Velocity Output available on alternate configuration, Model VO625A01. See pages 17 and 18 for specifications and drawings. Series 625BX1 Frequency Response Series 625BX1 Sensitivity Deviation vs. Temperature HOUR SENSORLINE SM WEBSITE

43 Precision Industrial ICP Accelerometers For Route-Based Measurements Series 625BX1 additional base model configurations Model 625B11 with integral, 10 ft (3 m) polyurethane cable Model 625B21 with integral, 10 ft (3 m) Teflon cable Model 625B31 with 3-pin, bayonet military connector Model 625B61 with integral, 10 ft (3 m) steel-armored, polyurethane cable Available models in this series Accelerometers Accelerometers with Intrinsically Safe Velocity additional temperature Accelerometers Sensors output signal of 10 mv/ C Two-pin, threaded military connector 625B01 TO625B01* CS or FM625B01 VO625A01 Integral, 10 ft (3 m) polyurethane cable 625B11 TO625B11 VO625A11 Integral, 10 ft (3 m) Teflon cable 625B21 VO625A21 Three pin, bayonet military connector 625B31 VO625A31 Integral, 10 ft (3 m) steel-armored cable 625B61 TO625B61 VO625A61 Options (indicate using prefix letter shown) LB Low Bias electronics for operation from 12 to 28 VDC excitation voltage M Metric installation via supplied M081A73 bolt, M6 1.0 thread NOTES: * Model TO625B01 features a 3-pin, threaded military connector to accommodate the additional temperature output signal. Intrinsically safe accelerometers and velocity sensors require the use of an intrinsic safety barrier. See pages 83 to 86 for details. Available approvals are: CS Canadian Standards, FM Factory Mutual. Alternate Configuration. See pages 17 and 18 for Velocity Sensor specifications and drawings Additional Versions (see page 16): 10 mv/g Series 625BX0 IMI SENSORS DIVISION TOLL-FREE

44 Precision Industrial ICP Accelerometers For Route-Based Measurements Dimensional drawings on page 18 Additional Precision Industrial ICP Accelerometers High Range Quartz Element Quartz Element Series 625BX0 Series 628FX1 Series 624AX1 Dynamic Performance English SI English SI English SI Sensitivity (± 5%) 10 mv/g 1.02 mv/(m/s 2 ) 100 mv/g 10.2 mv/(m/s 2 ) 100 mv/g 10.2 mv/(m/s 2 ) Measurement Range ± 500 g ± 4900 m/s 2 ± 50 g ± 490 m/s 2 ± 50 g ± 490 m/s 2 Broadband Resolution (1 to 10k Hz) 350 µg 3434 µm/s µg 9800 µm/s µg 9800 µm/s 2 Frequency Range: (± 5%) 30 to 390k cpm 0.5 to 6500 Hz 60 to 240k cpm 1 to 4000 Hz 144 to 300k cpm 2.4 to 5000 Hz (± 10%) 22 to 450k cpm 0.37 to 7500 Hz 40 to 390k cpm 0.67 to 6500 Hz 102 to 420k cpm 1.7 to 7000 Hz (± 3 db) 12 to 630k cpm 0.2 to 10.5k Hz 20 to 720k cpm 0.33 to 12k Hz 48 to 600k cpm 0.8 to 10k Hz Mounted Resonant Frequency 1500k cpm 25k Hz 1080k cpm 18k Hz 1080k cpm 18k Hz Amplitude Linearity ± 1% ± 1% ± 1% ± 1% ± 1% ± 1% Transverse Sensitivity 5% 5% 5% 5% 5% 5% Environmental Shock Limit 5,000 g pk 49k m/s 2 pk 5,000 g pk 49k m/s 2 pk 5,000 g pk 49k m/s 2 pk Temperature Range -65 to +250 F -54 to +121 C -65 to +250 F -54 to +121 C -65 to +250 F -54 to +121 C Electrical Settling Time 8.0 sec 8.0 sec 10 sec 10 sec 10 sec 10 sec Discharge Time Constant 1.0 sec 1.0 sec 0.5 sec 0.5 sec 0.2 sec 0.2 sec Excitation Voltage 18 to 28 VDC 18 to 28 VDC 18 to 28 VDC 18 to 28 VDC 18 to 28 VDC 18 to 28 VDC Excitation Constant Current 2 to 20 ma 2 to 20 ma 2 to 20 ma 2 to 20 ma 2 to 20 ma 2 to 20 ma Output Impedance < 100 ohm < 100 ohm < 100 ohm < 100 ohm < 100 ohm < 100 ohm Output Bias Voltage 8 to 12 VDC 8 to 12 VDC 8 to 12 VDC 8 to 12 VDC 8 to 12 VDC 8 to 12 VDC Electrical Case Isolation > 10 8 ohm > 10 8 ohm > 10 8 ohm > 10 8 ohm > 10 8 ohm > 10 8 ohm Electrical Protection RFI/ESD RFI/ESD RFI/ESD RFI/ESD RFI/ESD RFI/ESD Mechanical Size 1.38 dia 1.13 in 35.1 dia 28.7 mm 7/8 hex 2.0 in 7/8 in hex 50.8 mm 1.38 dia 1 1/8 in 34.9 dia 28.6 mm Weight 5.1 oz 145 gm 3.2 oz 91 gm 5.1 oz 145 gm Mounting Thread 1/4-28 UNF-2A 1/4-28 UNF-2A 1/4-28 UNF-2B 1/4-28 UNF-2B 1/4-28 UNF-2A 1/4-28 UNF-2A Mounting Torque 2 to 5 ft-lb 2.7 to 6.8 N-m 2 to 5 ft-lb 2.7 to 6.8 N-m 2 to 5 ft-lb 2.7 to 6.8 N-m Sensing Element ceramic/shear ceramic/shear quartz/shear quartz/shear quartz/shear quartz/shear Case Material stainless steel stainless steel stainless steel stainless steel stainless steel stainless steel Sealing (welded) hermetic IP68 hermetic IP68 hermetic IP68 Electrical Connector, 2-pin MIL-C-5015 (side) MIL-C-5015 (side) MIL-C-5015 (top) MIL-C-5015 (top) MIL-C-5015 (side) MIL-C-5015 (side) Supplied Accessories Mounting Stud or Bolt 081A73 (1) 081A40 (1) 081A57 (1) Thermal Boot 080B45 Calibration (NIST traceable) From 600 to 390k cpm From 600 to 240k cpm From 600 to 300k cpm Available Versions Two-pin, Threaded Military Connector 625B00 628F01 624A01 Integral, 10 ft (3 m) Polyurethane Cable 625B10 628F11 624A11 Integral, 10 ft (3 m) Teflon Cable 625B20 628F21 624A21 Three-pin, Bayonet Military Connector 625B30 628F31 624A31 Integral, 10 ft (3 m) Steel-Armored Cable 625B60 628F61 624A61 Two-Socket Terminal Block 628F71 Options (Indicate using prefix letter shown) High Temperature Operation (see p. 49) HT HT Low Bias Electronics LB LB LB Metric Installation M* M M Intrinsically Safe CS, EX, FM** Temperature Output TO TO NOTES: * via supplied M081A73 bolt, M6 1.0 thread via supplied M081A61 stud, 1/4-28 to M6 1.0 via supplied M081A58 bolt, M6 1.0 thread TO625B00, TO625B10, TO625B60, TO624A01, TO624A11, TO624A61 versions only. Models TO625B00 and TO624A01 feature a 3-pin, threaded military connector to accommodate the additional temperature output signals ** Intrinsically safe options available for CS, EX, or FM628F01; CS, EX, or FM628F11; and CS, EX, or FM628F31 versions only HOUR SENSORLINE SM WEBSITE

45 Precision Industrial ICP Velocity Sensors Dimensional drawings on page 18 Precision Industrial ICP Velocity Sensors Velocity Output High Frequency Velocity Output Velocity Output Series VO622AX1 Series VO625AX1 Series VO626AX1 Dynamic Performance English SI English SI English SI Sensitivity (± 10%) 100 mv/in/sec 3937 mv/m/sec 100 mv/in/sec 3937 mv/m/sec 100 mv/in/sec 3937 mv/m/sec Measurement Range ± 50 in/sec ± 1.27 m/sec ± 50 in/sec ± 1.27 m/sec ± 50 in/sec ± 1.27 m/sec Broadband Resolution (1 to 10k Hz) 450 µin/sec 11.4 µm/sec 400 µin/sec 10.6 µm/sec 300 µin/sec 7.62 µm/sec Frequency Range: (± 10%) 240 to 270k cpm 4 to 4500 Hz 120 to 150k cpm 2 to 2500 Hz 120 to 150k cpm 2 to 2500 Hz (± 3 db) 180 to 540k cpm 3 to 9000 Hz 90 to 360k cpm 1.5 to 6000 Hz 90 to 360k cpm 1.5 to 6000 Hz Mounted Resonant Frequency 1200k cpm 20k Hz 600k cpm 10k Hz 600k cpm 10k Hz Amplitude Linearity ± 1% ± 1% ± 1% ± 1% ± 1% ± 1% Transverse Sensitivity 5% 5% 8% 8% 7% 7% Environmental Shock Limit 5,000 g pk 49k m/s 2 pk 5,000 g pk 49k m/s 2 pk 5,000 g pk 49k m/s 2 pk Temperature Range -65 to +250 F -54 to +121 C -65 to +250 F -54 to +121 C -65 to +250 F -54 to +121 C Electrical Settling Time 30 sec 30 sec 30 sec 30 sec 30 sec 30 sec Excitation Voltage 18 to 28 VDC 18 to 28 VDC 18 to 28 VDC 18 to 28 VDC 18 to 28 VDC 18 to 28 VDC Excitation Constant Current 2 to 10 ma 2 to 10 ma 2 to 10 ma 2 to 10 ma 2 to 10 ma 2 to 10 ma Output Impedance < 100 ohm < 100 ohm < 100 ohm < 100 ohm < 100 ohm < 100 ohm Output Bias Voltage 8 to 12 VDC 8 to 12 VDC 8 to 12 VDC 8 to 12 VDC 8 to 12 VDC 8 to 12 VDC Electrical Case Isolation > 10 8 ohm > 10 8 ohm > 10 8 ohm > 10 8 ohm > 10 8 ohm > 10 8 ohm Electrical Protection RFI/ESD RFI/ESD RFI/ESD RFI/ESD RFI/ESD RFI/ESD Mechanical Size 7/8 hex 2.06 in 7/8 in hex 52.3 mm 1.38 dia 1.13 in 35 dia 29 mm 1-3/16 hex 2.30 in 1-3/16 hex 58.4 mm Weight 3.3 oz 93 gm 7.6 oz 215 gm 7.8 oz 221 gm Mounting Thread 1/4-28 UNF-2B1/4-28 UNF-2B1/4-28 UNF-2A 1/4-28 UNF-2A 1/4-28 UNF-2B1/4-28 UNF-2B Mounting Torque 2 to 5 ft-lb 2.7 to 6.8 N-m 2 to 5 ft-lb 2.7 to 6.8 N-m 2 to 5 ft-lb 2.7 to 6.8 N-m Sensing Element ceramic/shear ceramic/shear ceramic/shear ceramic/shear ceramic/shear ceramic/shear Case Material stainless steel stainless steel stainless steel stainless steel stainless steel stainless steel Sealing (welded) hermetic IP68 hermetic IP68 hermetic IP68 Electrical Connector, 2-pin MIL-C-5015 (top) MIL-C-5015 (top) MIL-C-5015 (side) MIL-C-5015 (side) MIL-C-5015 (top) MIL-C-5015 (top) Supplied Accessories Mounting Stud or Bolt Model 081A40 (1) Model 081A57 (1) Model 081A40 (1) Thermal Boot Model 085A34 (1) Model 085A31 (1) Calibration (NIST traceable) From 300 to 270k cpm From 300 to 150k cpm From 300 to 150k cpm Available Versions Two-pin, Threaded Military Connector VO622A01 VO625A01 VO626A01 Integral, 10 ft (3 m) Polyurethane Cable VO622A11 VO625A11 Integral, 10 ft (3 m) Teflon Cable VO622A21 VO625A21 VO626A21 Three-pin, Bayonet Military Connector VO622A31 VO625A31 Integral, 10 ft (3 m) Steel-Armored Cable VO622A61 VO625A61 Options (Indicate using prefix letter shown) Metric Installation M* M M* Intrinsically Safe CS, EX, FM, MX** NOTES: * via supplied M081A61 stud, 1/4-28 to M6 x 0.75 via supplied M081A58 bolt, M6 x 1.0 thread ** Intrinsically safe options available for CS, EX, MX, or FMVO622A01; and CS, EX, MX, or FMVO622A11 versions only IMI SENSORS DIVISION TOLL-FREE

46 Outline Drawings Outline drawings for additional precision sensors All Drawings Shown at 1/2 Actual Size Model 625B00 with 2-pin, threaded military connector Model 628F01 with 2-pin, threaded military connector Model 624A01 with 2-pin, threaded military connector Model VO622A01 with 2-pin, threaded military connector Model VO625A01 with 2-pin, threaded military connector Model VO626A01 with 2-pin, threaded military connector Dimensions shown are in inches (millimeters). Outline drawings for additional low-cost sensors All Drawings Shown at 1/2 Actual Size Model 601A01 with 2-pin, threaded military connector Dimensions shown are in inches (millimeters). Model 602C01 with 2-pin, threaded military connector Model 627A01 with 2-pin, threaded military connector HOUR SENSORLINE SM WEBSITE

47 High Frequency Industrial ICP Accelerometers Vibration measurements on high speed rotating machinery Gear mesh studies and diagnostics Bearing monitoring Small mechanisms High-speed spindles Successful vibration measurements begin with sensors that have adequate capabilities for the requirement. If the sensor s frequency response characteristics are inadequate, the user risks corrupted or insufficient data to achieve a proper analysis and diagnosis. For vibration monitoring, testing, and frequency analysis of high-speed rotating machinery, spindles, and gear mesh, it is imperative to utilize a sensor with a sufficient high frequency range to accurately capture the vibration signals within the bandwidth of interest. These precision, high frequency ICP accelerometers meet the requirements of high frequency signal analysis. Miniature sized units are also suitable for vibration measurements on small mechanisms where sensor size and weight become important factors. PCB IMI SM Sensors Division toll-free FAX imi@pcb.com Website 19

48 High Frequency Industrial ICP Accelerometers Series 623CX0 10 mv/g sensitivity Small size High frequency Top exit connectors Model 623C00 with 2-pin, threaded military connector Dimensions shown are in inches (millimeters). Actual Size Model 623C00 Specifications Dynamic Performance English SI Sensitivity (± 5%) 10 mv/g 1 mv/(m/s 2 ) Measurement Range ± 500 g ± 4905 m/s 2 Broadband Resolution (1 to 10k Hz) 300 µg 2943 µm/s 2 Frequency Range: (± 5%) 144 to 480k cpm 2.4 to 8000 Hz (± 10%) 102 to 600k cpm 1.7 to 10k Hz (± 3 db) 48 to 900k cpm 0.8 to 15k Hz Mounted Resonant Frequency 2400k cpm 40k Hz Amplitude Linearity ± 1% ± 1% Transverse Sensitivity 5% 5% Environmental Shock Limit 5,000 g pk 49k m/s 2 pk Temperature Range -65 to +250 F -54 to +121 C Electrical Settling Time 3 sec 3 sec Discharge Time Constant 0.2 sec 0.2 sec Excitation Voltage 18 to 28 VDC 18 to 28 VDC Excitation Constant Current 2 to 20 ma 2 to 20 ma Output Impedance < 100 ohm < 100 ohm Output Bias Voltage 8 to 12 VDC 8 to 12 VDC Electrical Case Isolation > 10 8 ohm > 10 8 ohm Electrical Protection RFI/ESD RFI/ESD Mechanical Size (hex height) 11/ in 11/16 in 50.0 mm Weight 1.8 oz 51 gm Mounting Thread 1/4-28 UNF-2B 1/4-28 UNF-2B Mounting Torque 2 to 5 ft-lb 2.7 to 6.8 N-m Sensing Element ceramic/shear ceramic/shear Case Material stainless steel stainless steel Sealing (welded) hermetic IP68 Electrical Connector, 2-pin (top) MIL-C-5015 MIL-C-5015 Supplied Accessories Model 081A40 Mounting Stud (1) Full Calibration from 600 to 480k cpm (NIST traceable) Options (indicate using prefix letter shown) CS, EX, FM Intrinsically safe LB Low Bias electronics for operation from 12 to 28 VDC excitation voltage M Metric installation via supplied M081A61 stud,1/4-28 to M6 1.0 Series 623CX0 Frequency Response Series 623CX0 Sensitivity Deviation vs. Temperature HOUR SENSORLINE SM WEBSITE

49 High Frequency Industrial ICP Accelerometers Series 623CX0 additional base model configurations Model 623C10 with integral, 10 ft (3 m) polyurethane cable Model 623C20 with integral, 10 ft (3 m) Teflon cable Model 623C30 with 3-pin, bayonet military connector Model 623C60 with integral, 10 ft (3 m) steel-armored, polyurethane cable Available models in this series Accelerometers Intrinsically Safe Accelerometers* Two-pin, threaded military connector 623C00 CS, EX, or FM 623C00* Integral, 10 ft (3 m) polyurethane cable 623C10 CS, EX, or FM 623C10* Integral, 10 ft (3 m) Teflon cable 623C20 Three-pin, bayonet military connector 623C30 Integral, 10 ft (3 m) steel-armored, polyurethane cable 623C60 Options (indicate using prefix letter shown) LB Low Bias electronics for operation from 12 to 28 VDC excitation voltage M Metric installation via supplied M081A61 stud, 1/4-28 to M6 1.0 NOTES: * Intrinsically safe accelerometers require the use of an intrinsic safety barrier. See pages 83 to 86 for details. Available approvals are CS - Canadian Standards, EX - Cenelec, FM - Factory Mutual. IMI SENSORS DIVISION TOLL-FREE

50 High Frequency Industrial ICP Accelerometers Series 623CX1 100 mv/g sensitivity Small size High frequency Top exit connectors Model 623C01 with 2-pin, threaded military connector Dimensions shown are in inches (millimeters). Actual Size Model 623C01 Specifications Dynamic Performance English SI Sensitivity (± 5%) 100 mv/g 10.2 mv/(m/s 2 ) Measurement Range ± 50 g ± 490 m/s 2 Broadband Resolution (1 to 10k Hz) 100 µg 981 µm/s 2 Frequency Range: (± 5%) 144 to 480k cpm 2.4 to 8000 Hz (± 10%) 102 to 600k cpm 1.7 to 10k Hz (± 3 db) 48 to 900k cpm 0.8 to 15k Hz Mounted Resonant Frequency 2400k cpm 40k Hz Amplitude Linearity ± 1% ± 1% Transverse Sensitivity 5% 5% Environmental Shock Limit 5,000 g pk 49k m/s 2 pk Temperature Range -65 to +250 F -54 to +121 C Electrical Settling Time 2 sec 2 sec Discharge Time Constant 0.2 sec 0.2 sec Excitation Voltage 18 to 28 VDC 18 to 28 VDC Excitation Constant Current 2 to 20 ma 2 to 20 ma Output Impedance < 150 ohm < 150 ohm Output Bias Voltage 8 to 12 VDC 8 to 12 VDC Electrical Case Isolation > 10 8 ohm > 10 8 ohm Electrical Protection RFI/ESD RFI/ESD Mechanical Size (hex height) 11/ in 11/16 in 50.0 mm Weight 1.8 oz 51 gm Mounting Thread 1/4-28 UNF-2B 1/4-28 UNF-2B Mounting Torque 2 to 5 ft-lb 2.7 to 6.8 N-m Sensing Element ceramic/shear ceramic/shear Case Material stainless steel stainless steel Sealing (welded) hermetic IP68 Electrical Connector, 2-pin (top) MIL-C-5015 MIL-C-5015 Supplied Accessories Model 081A40 Mounting Stud (1) Full Calibration from 600 to 480k cpm (NIST traceable) Options (indicate using prefix letter shown) CS, EX, FM Intrinsically Safe LB Low Bias electronics for operation from 12 to 28 VDC excitation voltage M Metric installation via supplied M081A61 stud, 1/4-28 to M6 1.0 Series 623CX1 Frequency Response Series 623CX1 Sensitivity Deviation vs. Temperature HOUR SENSORLINE SM WEBSITE

51 High Frequency Industrial ICP Accelerometers Series 623CX1 additional base model configurations Model 623C11 with integral, 10 ft (3 m) polyurethane cable Model 623C21 with integral, 10 ft (3 m) Teflon cable Model 623C31 with 3-pin, bayonet military connector Model 623C61 with integral, 10 ft (3 m) steel-armored, polyurethane cable Available models in this series Accelerometers Intrinsically Safe Accelerometers* Two-pin, threaded military connector 623C01 CS, EX, or FM623C01* Integral, 10 ft (3 m) polyurethane cable 623C11 CS, EX, or FM623C11* Integral, 10 ft (3 m) Teflon cable 623C21 Three-pin, bayonet military connector 623C31 Integral, 10 ft (3 m) steel-armored, polyurethane cable 623C61 Options (indicate using prefix letter shown) LB Low Bias electronics for operation from 12 to 28 VDC excitation voltage M Metric installation via supplied M081A61 stud, 1/4-28 to M6 1.0 NOTES: * Intrinsically safe accelerometers require the use of an intrinsic safety barrier. See pages 83 to 86 for details. Available approvals are CS - Canadian Standards, EX - CENELEC, FM - Factory Mutual. IMI SENSORS DIVISION TOLL-FREE

52 High Frequency Industrial ICP Accelerometers Model 621B40 10 mv/g sensitivity Small size High frequency range to 30k Hz, even with attached magnet Top exit connector Model 621B40 with 5-44 coaxial connector Dimensions shown are in inches (millimeters). Model 080A157 High Strength Magnet Actual Size Model 621B40 Specifications Dynamic Performance English SI Sensitivity (± 10%) 10 mv/g 1.02 mv/(m/s 2 ) Measurement Range ± 500 g ± 4900 m/s 2 Broadband Resolution (1 to 10k Hz) 1200 µg 1176 µm/s 2 Frequency Range: (± 10%) 204 to 1080k cpm 3.4 to 18k Hz (± 3 db) 96 to 1800k cpm 1.6 to 30k Hz Mounted Resonant Frequency 5100k cpm 85k Hz Amplitude Linearity ± 1% ± 1% Transverse Sensitivity 5% 5% Environmental Shock Limit 10,000 g pk 98k m/s 2 pk Temperature Range -65 to +250 F -54 to +121 C Electrical Settling Time 3 sec 3 sec Discharge Time Constant 0.1 sec 0.1 sec Excitation Voltage 18 to 28 VDC 18 to 28 VDC Excitation Constant Current 2 to 20 ma 2 to 20 ma Output Impedance < 100 ohm < 100 ohm Output Bias Voltage 8 to 12 VDC 8 to 12 VDC Mechanical Size (hex height) 3/ in 3/8 in 16.8 mm Weight 0.1 oz 2.8 gm Mounting Thread 5-40 UNC-2A 5-40 UNC-2A Mounting Torque 18 to 20 in-lb 2.1 to 2.2 N-m Sensing Element ceramic/shear ceramic/shear Case Material titanium titanium Sealing (welded) hermetic IP68 Electrical Connector (top) coaxial 5-44 coaxial 5-44 Supplied Accessories Full Calibration from 600 to 1800k cpm Optional Accessories Model 080A157 Magnet Model 018C05 Cable Assembly Model M081A57 magnet with female M3 0.5 thread substituted Options (indicate using prefix letter shown) M Metric installation via integral M3 0.5 male mounting thread Model 621B40 sensor with 080A157 magnet Frequency Response Model 621B40 Sensitivity Deviation vs. Temperature HOUR SENSORLINE SM WEBSITE

53 High Frequency Industrial ICP Accelerometers Model 621B mv/g sensitivity Small size High frequency range to 20k Hz Top exit connector Model 621B41 with coaxial connector Dimensions shown are in inches (millimeters). Actual Size Model 621B41 Specifications Dynamic Performance English SI Sensitivity (± 5%) 100 mv/g 10.2 mv/(m/s 2 ) Measurement Range ± 50 g ± 490 m/s 2 Broadband Resolution (1 to 10k Hz) 100 µg 981 µm/s 2 Frequency Range: (± 5%) 144 to 600k cpm 2.4 to 10k Hz (± 10%) 102 to 900k cpm 1.7 to 15k Hz (± 3 db) 48 to 1200k cpm 0.8 to 20k Hz Mounted Resonant Frequency 2100k cpm 35k Hz Amplitude Linearity ± 1% ± 1% Transverse Sensitivity 5% 5% Environmental Shock Limit 5,000 g pk 49k m/s 2 pk Temperature Range -65 to +250 F -54 to +121 C Electrical Settling Time 5 sec 5 sec Discharge Time Constant 0.2 sec 0.2 sec Excitation Voltage 18 to 28 VDC 18 to 28 VDC Excitation Constant Current 2 to 20 ma 2 to 20 ma Output Impedance < 150 ohm < 150 ohm Output Bias Voltage 8 to 12 VDC 8 to 12 VDC Electrical Base Isolation > 10 8 ohm > 10 8 ohm Mechanical Size (hex height) 11/ in 11/16 in 32.8 mm Weight 1.06 oz 30 gm Mounting Thread UNF-2B UNF-2B Mounting Torque 10 to 20 in-lb 1.2 to 2.2 N-m Sensing Element ceramic/shear ceramic/shear Case Material stainless steel stainless steel Sealing (welded) hermetic IP68 Electrical Connector (top) coaxial coaxial Supplied Accessories Model 081A39 Mounting Stud (1) Full Calibration from 600 to 600k cpm (NIST traceable) Options (indicate using prefix letter shown) M Metric installation via M081B05 stud, to M Model 621B41 Frequency Response Model 621B41 Sensitivity Deviation vs. Temperature IMI SENSORS DIVISION TOLL-FREE

54 High Frequency Industrial ICP Accelerometers Model 621B mv/g sensitivity Small size High frequency range to 20k Hz Side exit connector Model 621B51 with coaxial connector Dimensions shown are in inches (millimeters). Actual Size Model 621B51 Specifications Dynamic Performance English SI Sensitivity (± 5%) 100 mv/g 10.2 mv/(m/s 2 ) Measurement Range ± 50 g ± 490 m/s 2 Broadband Resolution (1 to 10k Hz) 100 µg 981 µm/s 2 Frequency Range: (± 5%) 144 to 600k cpm 2.4 to 10k Hz (± 10%) 102 to 900k cpm 1.7 to 15k Hz (± 3 db) 48 to 1200k cpm 0.8 to 20k Hz Mounted Resonant Frequency 2100k cpm 35k Hz Amplitude Linearity ± 1% ± 1% Transverse Sensitivity 5% 5% Environmental Shock Limit 5,000 g pk 49k m/s 2 pk Temperature Range -65 to +250 F -54 to +121 C Electrical Settling Time 5 sec 5 sec Discharge Time Constant 0.2 sec 0.2 sec Excitation Voltage 18 to 28 VDC 18 to 28 VDC Excitation Constant Current 2 to 20 ma 2 to 20 ma Output Impedance < 150 ohm < 150 ohm Output Bias Voltage 8 to 12 VDC 8 to 12 VDC Electrical Base Isolation > 10 8 ohm > 10 8 ohm Mechanical Size (hex height) 11/ in 11/16 in 26.2 mm Weight 1.06 oz 30 gm Mounting Thread UNF-2B UNF-2B Mounting Torque 10 to 20 in-lb 1.2 to 2.2 N-m Sensing Element ceramic/shear ceramic/shear Case Material stainless steel stainless steel Sealing (welded) hermetic IP68 Electrical Connector (side) coaxial coaxial Supplied Accessories Model 081A39 Mounting Stud (1) Full Calibration from 600 to 600k cpm (NIST traceable) Options (indicate using prefix letter shown) M Metric installation via M081B05 stud, to M Model 621B51 Frequency Response Model 621B51 Sensitivity Deviation vs. Temperature HOUR SENSORLINE SM WEBSITE

55 High Frequency Industrial ICP Accelerometers Model 631A80 10 mv/g sensitivity Ring style with side exit connector Connector may be rotated into any direction High frequency range to 16k Hz Actual Size Model 631A80 with 2-pin, threaded military connector Model 631A80 Specifications Dynamic Performance English SI Sensitivity (± 5%) 10 mv/g 1.02 mv/(m/s 2 ) Measurement Range ± 500 g ± 4900 m/s 2 Broadband Resolution (1 to 10k Hz) 450 µg 4415 µm/s 2 Frequency Range: (± 10%) 68 to 840k cpm 1.1 to 14k Hz (± 3 db) 32 to 960k cpm 0.53 to 16k Hz Mounted Resonant Frequency 2100k cpm 35k Hz Amplitude Linearity ± 1% ± 1% Transverse Sensitivity 5% 5% Environmental Shock Limit 5,000 g pk 49k m/s 2 pk Temperature Range -65 to +250 F -54 to +121 C Electrical Settling Time 3 sec 3 sec Discharge Time Constant 0.4 sec 0.4 sec Excitation Voltage 18 to 28 VDC 18 to 28 VDC Excitation Constant Current 2 to 20 ma 2 to 20 ma Output Impedance < 150 ohm < 150 ohm Output Bias Voltage 8 to 12 VDC 8 to 12 VDC Electrical Base Isolation > 10 8 ohm > 10 8 ohm Mechanical Size (diameter height) in mm Weight 2.12 oz 60 gm Mounting Thread UNF-2A UNF-2A Mounting Torque 25 to 30 in-lb 2.8 to 3.4 N-m Sensing Element ceramic/shear ceramic/shear Case Material stainless steel stainless steel Sealing (welded) hermetic IP68 Electrical Connector, 2-pin (side) 7/16-27 UNS-2A 7/16-27 UNS-2A Supplied Accessories Model 081A76 Mounting Screw (1) Full Calibration from 600 to 840k cpm (NIST traceable) Options (indicate using prefix letter shown) M Metric installation via supplied M081A76 screw Dimensions shown are in inches (millimeters). Model 631A80 Frequency Response Model 631A80 Sensitivity Deviation vs. Temperature IMI SENSORS DIVISION TOLL-FREE

56 High Frequency Industrial ICP Accelerometers Model 635A mv/g sensitivity Ring style with side exit connector Connector may be rotated into any direction High frequency range to 15k Hz Actual Size Model 635A01 Specifications Dynamic Performance English SI Sensitivity (± 5%) 100 mv/g 10.2 mv/(m/s 2 ) Measurement Range ± 50 g ± 490 m/s 2 Broadband Resolution (1 to 10k Hz) 240 µg 2354 µm/s 2 Frequency Range: (± 10%) 68 to 720k cpm 1.1 to 12k Hz (± 3 db) 32 to 900k cpm 0.53 to 15k Hz Mounted Resonant Frequency 1800k cpm 30k Hz Amplitude Linearity ± 1% ± 1% Transverse Sensitivity 5% 5% Environmental Shock Limit 5,000 g pk 49k m/s 2 pk Temperature Range -65 to +250 F -54 to +121 C Electrical Settling Time 2 sec 2 sec Discharge Time Constant 0.3 sec 0.3 sec Excitation Voltage 18 to 28 VDC 18 to 28 VDC Excitation Constant Current 2 to 20 ma 2 to 20 ma Output Impedance < 150 ohm < 150 ohm Output Bias Voltage 8 to 12 VDC 8 to 12 VDC Electrical Base Isolation > 10 8 ohm > 10 8 ohm Mechanical Size (dia height) in mm Weight 3.0 oz 86 gm Mounting Thread 1/4-28 UNF-2A 1/4-28 UNF-2A Mounting Torque 2 to 5 ft-lb 2.7 to 6.8 N-m Sensing Element ceramic/shear ceramic/shear Case Material stainless steel stainless steel Sealing (welded) hermetic IP68 Electrical Connector, 2-pin (side) MIL-C-5015 MIL-C-5015 Supplied Accessories Model 081A97 Mounting Screw (1) Full Calibration from 600 to 720k cpm (NIST traceable) Options (indicate using prefix letter shown) M Metric installation via supplied M081A97 screw, M6 1.0 thread Model 635A01 with 2-pin, threaded military connector Dimensions shown are in inches (millimeters). Model 635A01 Frequency Response Model 635A01 Sensitivity Deviation vs. Temperature HOUR SENSORLINE SM WEBSITE

57 Low Frequency Industrial ICP Accelerometers Vibration measurements on slow rotating machinery Paper machine rolls Large structures and machine foundations Large fans and air handling equipment Cooling towers Buildings, bridges, foundations, and floors Low-amplitude, vibration levels go hand-in-hand with lowfrequency vibration measurements. For this reason, IMI offers accelerometers combining extended low frequency response with high output sensitivity in order to obtain the desired resolution characteristics and strong output signal levels, necessary for conducting low-frequency, vibration measurements and analysis. The most sensitive of IMI s low frequency accelerometers are known as seismic accelerometers. These models are larger in size to accommodate their larger seismic, internal masses which are necessary to generate a stronger output signal. These sensors have a limited amplitude range which renders them unsuitable for many general purpose industrial vibration measurement applications. However, when measuring the vibration of slow, rotating machinery, buildings, bridges and large structures, low frequency, low noise accelerometers will provide the characteristics required for successful results. All of these low-frequency industrial accelerometers benefit from the same advantages offered by IMI s general purpose industrial accelerometers including: rugged, laser-welded, stainless steel housing with the ability to endure dirty, wet, or harsh environments; hermetically sealed military connector or sealed integral cable; and a low noise, low impedance, voltage output signal with long-distance, signal transmission capability. PCB IMI SM Sensors Division toll-free FAX imi@pcb.com Website 29

58 Low Frequency Industrial ICP Accelerometers Series 625BX2 500 mv/g sensitivity Ring style, side exit connectors Simple connector orientation 15 µg resolution Model 625B02 with 2-pin, threaded military connector Dimensions shown are in inches (millimeters) Actual Size Model 625B02 Specifications Dynamic Performance English SI Sensitivity (± 5%) 500 mv/g 51 mv/(m/s 2 ) Measurement Range ± 10 g ± 98 m/s 2 Broadband Resolution (1 to 10k Hz) 15 µg 147 µm/s 2 Frequency Range: (± 5%) 30 to 120k cpm 0.5 to 2000 Hz (± 10%) 22 to 240k cpm 0.37 to 4000 Hz (± 3 db) 12 to 360k cpm 0.2 to 6000 Hz Mounted Resonant Frequency 720k cpm 12k Hz Amplitude Linearity ± 1% ± 1% Transverse Sensitivity 7% 7% Environmental Shock Limit 2500 g pk 24k m/s 2 pk Temperature Range -65 to +250 F -54 to +121 C Electrical Settling Time 4.5 sec 4.5 sec Discharge Time Constant 1.0 sec 1.0 sec Excitation Voltage 18 to 28 VDC 18 to 28 VDC Excitation Constant Current 2 to 20 ma 2 to 20 ma Output Impedance < 100 ohm < 100 ohm Output Bias Voltage 8 to 12 VDC 8 to 12 VDC Electrical Case Isolation > 10 8 ohm > 10 8 ohm Mechanical Size (diameter height) in mm Weight 6.1 oz 173 gm Mounting Thread 1/4-28 UNF-2A 1/4-28 UNF-2A Mounting Torque 2 to 5 ft-lb 2.7 to 6.8 N-m Sensing Element ceramic/shear ceramic/shear Case Material stainless steel stainless steel Sealing (welded) hermetic IP68 Electrical Connector, 2-pin (side) MIL-C-5015 MIL-C-5015 Supplied Accessories Model 081A73 Mounting Bolt (1) Model 080B45 Thermal Boot (1) Full Calibration from 600 to 120k cpm (NIST traceable) Options (indicate using prefix letter shown) LB Low Bias electronics for operation from 12 to 28 VDC excitation voltage M Metric installation via supplied M081A73 bolt, M6 1.0 thread TO Temperature Output Series 625BX2 Frequency Response Series 625BX2 Sensitivity Deviation vs. Temperature HOUR SENSORLINE SM WEBSITE

59 Low Frequency Industrial ICP Accelerometers Series 625BX2 additional base model configurations Model 625B12 with integral, 10 ft (3 m) polyurethane cable Model 625B22 with integral, 10 ft (3 m) Teflon cable Model 625B32 with 3-pin, bayonet military connector Model 625B62 with integral, 10 ft (3 m) steel-armored, polyurethane cable Available models in this series Accelerometers Accelerometers with additional temperature output signal of 10 mv/ C Two-pin, threaded military connector 625B02 TO625B02* Integral, 10 ft (3 m) polyurethane cable 625B12 TO625B12 Integral, 10 ft (3 m) Teflon cable 625B22 Three-pin, bayonet military connector 625B32 Integral, 10 ft (3 m) steel-armored, polyurethane cable 625B62 TO625B62 Options (indicate using prefix letter shown) LB Low Bias electronics for operation from 12 to 28 VDC excitation voltage M Metric installation via supplied M081A73 bolt, M6 1.0 thread NOTES: * Model TO625B02 features a 3-pin, threaded military connector to accommodate the additional temperature output signal. IMI SENSORS DIVISION TOLL-FREE

60 Low Frequency Industrial ICP Accelerometers Series 626AX1 100 mv/g sensitivity Top exit connectors 100 micro g resolution Actual Size Model 626A01 with 2-pin, threaded military connector Model 626A01 Specifications Dynamic Performance English SI Sensitivity (± 5%) 100 mv/g 10.2 mv/(m/s 2 ) Measurement Range ± 50 g ± 490 m/s 2 Broadband Resolution (1 to 10k Hz) 100 µg 981 µm/s 2 Frequency Range: (± 5%) 30 to 300k cpm 0.5 to 5000 Hz (± 10%) 18 to 420k cpm 0.3 to 7000 Hz (± 3 db) 12 to 600k cpm 0.2 to 10k Hz Mounted Resonant Frequency 1200k cpm 20k Hz Amplitude Linearity ± 1% ± 1% Transverse Sensitivity 5% 5% Environmental Shock Limit 5000 g pk 49k m/s 2 pk Temperature Range -65 to +250 F -54 to +121 C Electrical Settling Time 5 sec 5 sec Discharge Time Constant 1.0 sec 1.0 sec Excitation Voltage 18 to 28 VDC 18 to 28 VDC Excitation Constant Current 2 to 20 ma 2 to 20 ma Output Impedance < 100 ohm < 100 ohm Output Bias Voltage 8 to 12 VDC 8 to 12 VDC Electrical Case Isolation > 10 8 ohm > 10 8 ohm Electrical Protection RFI/ESD RFI/ESD Mechanical Size (hex height) 1 3/ in 1 3/16 in 58.4 mm Weight 5.3 oz 150 gm Mounting Thread 1/4-28 UNF-2B 1/4-28 UNF-2B Mounting Torque 2 to 5 ft-lb 2.7 to 6.8 N-m Sensing Element ceramic/shear ceramic/shear Case Material stainless steel stainless steel Sealing (welded) hermetic IP68 Electrical Connector, 2-pin (top) MIL-C-5015 MIL-C-5015 Supplied Accessories Model 081A40 Mounting Stud (1) Model 085A31 Thermal Boot (1) Full Calibration from 600 to 300k cpm (NIST traceable) Options (indicate using prefix letter shown) LB Low Bias electronics for operation from 12 to 28 VDC excitation voltage M Metric installation via supplied M081A61 stud, 1/4-28 to M6 1.0 TO Temperature Output Dimensions shown are in inches (millimeters). Series 626AX1 Frequency Response Series 626AX1 Sensitivity Deviation vs. Temperature HOUR SENSORLINE SM WEBSITE

61 Low Frequency Industrial ICP Accelerometers Series 626AX1 additional base model configurations Model 626A11 with integral, 10 ft (3 m) polyurethane cable Model 626A21 with integral, 10 ft (3 m) Teflon cable Available models in this series Accelerometers Accelerometers with Velocity additional temperature Sensors output signal of 10 mv/ C Two-pin, threaded military connector 626A01 TO626A01* VO626A01 Integral, 10 ft (3 m) polyurethane cable 626A11 TO626A11 Integral, 10 ft (3 m) Teflon cable 626A21 VO626A21 Three-pin, bayonet military connector 626A31 Integral, 10 ft (3 m) steel-armored, polyurethane cable 626A61 TO626A61 Options (indicate using prefix letter shown) LB Low Bias electronics for operation from 12 to 28 VDC excitation voltage M Metric installation via supplied M081A61 stud, 1/4-28 to M6 1.0 NOTES: Model 626A31 with 3-pin, bayonet military connector * Model TO626A01 features a 3-pin, threaded military connector to accommodate the additional temperature output signal. See pages 17 and 18 for Velocity Sensor specifications and drawings. Additional Versions (see page 36): 500 mv/g - Series 626AX2; 1000 mv/g - Series 626AX3 Model 626A61 with integral, 10 ft (3 m) steel-armored, polyurethane cable IMI SENSORS DIVISION TOLL-FREE

62 Low Frequency, Seismic Industrial ICP Accelerometers Series 626AX4 10,000 mv/g sensitivity Top exit connectors 0.5 micro g resolution Model 626A04 with 2-pin, threaded military connector 2/3 Actual Size Model 626A04 Specifications Dynamic Performance English SI Sensitivity (± 5%) 10 V/g 1.02 V/(m/s 2 ) Measurement Range ± 0.5 g ± 4.9 m/s 2 Broadband Resolution (1 to 10k Hz) 0.5 µg 5 µm/s 2 Frequency Range: (± 5%) 6 to 12k cpm 0.1 to 200 Hz (± 10%) 4 to 18k cpm 0.07 to 300 Hz (± 3 db) 2 to 30k cpm 0.03 to 500 Hz Mounted Resonant Frequency 60k cpm 1000 Hz Amplitude Linearity ± 1% ± 1% Transverse Sensitivity 5% 5% Environmental Shock Limit 40 g pk 392 m/s 2 pk Temperature Range 0 to +150 F -18 to +65 C Electrical Settling Time 5 min 5 min Discharge Time Constant 5 sec 5 sec Excitation Voltage 24 to 28 VDC 24 to 28 VDC Excitation Constant Current 2 to 10 ma 2 to 10 ma Output Impedance < 500 ohm < 500 ohm Output Bias Voltage 8 to 12 VDC 8 to 12 VDC Electrical Case Isolation > 10 8 ohm > 10 8 ohm Electrical Protection RFI/ESD RFI/ESD Mechanical Size (diameter height) in mm Weight 22 oz 624 gm Mounting Thread 1/4-28 UNF-2B 1/4-28 UNF-2B Mounting Torque 2 to 5 ft-lb 2.7 to 6.8 N-m Sensing Element ceramic/flexural ceramic/flexural Case Material stainless steel stainless steel Sealing (welded) hermetic IP68 Electrical Connector (top) MIL-C-5015 MIL-C-5015 Supplied Accessories Model 081A40 Mounting Stud (1) Full Calibration from 30 to 12k cpm (NIST traceable) Options (indicate using prefix letter shown) M Metric installation via supplied M081A61 stud, 1/4-28 to M6 1.0 Dimensions shown are in inches (millimeters). Series 626AX4 Frequency Response Series 626AX4 Sensitivity Deviation vs. Temperature HOUR SENSORLINE SM WEBSITE

63 Low Frequency, Seismic Industrial ICP Accelerometers Series 626AX4 additional base model configurations Model 626A14 with integral, 10 ft (3 m) polyurethane cable Model 626A24 with integral, 10 ft (3 m) Teflon cable Model 626A34 with 3-pin, bayonet military connector Model 626A64 with integral, 10 ft (3 m) steel-armored, polyurethane cable Available models in this series Accelerometers Two-pin, threaded military connector 626A04 Integral, 10 ft (3 m) polyurethane cable 626A14 Integral, 10 ft (3 m) Teflon cable 626A24 Three-pin, bayonet military connector 626A34 Integral, 10 ft (3 m) steel-armored, polyurethane cable 626A64 Options (indicate using prefix letter shown) M Metric installation via supplied M081A61 stud, 1/4-28 to M6 1.0 IMI SENSORS DIVISION TOLL-FREE

64 Low Frequency Industrial ICP Accelerometers Additional Low Frequency Industrial ICP Accelerometers Series 626AX2 500 mv/g 15 µg resolution Series 626AX mv/g 10 µg resolution Dynamic Performance English SI English SI Sensitivity (± 5%) 500 mv/g 51 mv/(m/s 2 ) 1000 mv/g 102 mv/(m/s 2 ) Measurement Range ± 10 g ± 98 m/s 2 ± 5 g ± 49 m/s 2 Broadband Resolution (1 to 10k Hz) 15 µg 147 µm/s 2 10 µg 98 µm/s 2 Frequency Range: (± 5%) 30 to 120k cpm 0.5 to 2000 Hz 30 to 120k cpm 0.5 to 2000 Hz (± 10%) 18 to 240k cpm 0.3 to 4000 Hz 18 to 240k cpm 0.3 to 4000 Hz (± 3 db) 12 to 360k cpm 0.2 to 6000 Hz 12 to 360k cpm 0.2 to 6000 Hz Mounted Resonant Frequency 720k cpm 12k Hz 720k cpm 12k Hz Amplitude Linearity ± 1% ± 1% ± 1% ± 1% Transverse Sensitivity 7% 7% 7% 7% Environmental Shock Limit 2500 g pk 24k m/s 2 pk 2500 g pk 24.5k m/s 2 pk Temperature Range -65 to +250 F -54 to +121 C -65 to +250 F -54 to +121 C Electrical Settling Time 5 sec 5 sec 10 sec 10 sec Discharge Time Constant 1.0 sec 1.0 sec 1.0 sec 1.0 sec Excitation Voltage 18 to 28 VDC 18 to 28 VDC 18 to 28 VDC 18 to 28 VDC Excitation Constant Current 2 to 20 ma 2 to 20 ma 2 to 20 ma 2 to 20 ma Output Impedance < 100 ohm < 100 ohm < 100 ohm < 100 ohm Output Bias Voltage 8 to 12 VDC 8 to 12 VDC 8 to 12 VDC 8 to 12 VDC Electrical Case Isolation > 10 8 ohm > 10 8 ohm > 10 8 ohm > 10 8 ohm Electrical Protection RFI/ESD RFI/ESD RFI/ESD RFI/ESD Mechanical Size (hex height) 1 3/ in 1 3/16 in 55.6 mm 1 3/ in 1 3/16 in 55.6 mm Weight 7.4 oz 210 gm 7.4 oz 210 gm Mounting Thread1/4-28 UNF-2B 1/4-28 UNF-2B 1/4-28 UNF-2B 1/4-28 UNF-2B Mounting Torque 2 to 5 ft-lb 2.7 to 6.8 N-m 2 to 5 ft-lb 2.7 to 6.8 N-m Sensing Element ceramic/shear ceramic/shear ceramic/shear ceramic/shear Case Material stainless steel stainless steel stainless steel stainless steel Sealing (welded) hermetic IP68 hermetic IP68 Electrical Connector, 2-pin (top) MIL-C-5015 MIL-C-5015 MIL-C-5015 MIL-C-5015 Supplied Accessories Mounting Stud or Bolt Model 081A40 (1) Model 081A40 (1) Thermal Boot Model 085A31 (1) Model 085A31 (1) Calibration (NIST traceable) From 600 to 120K cpm From 600 to 120k cpm Available Versions Two-pin, Threaded Military Connector 626A02 626A03 Integral, 10 ft (3 m) Polyurethane Cable 626A12 626A13 Integral, 10 ft (3 m) Teflon Cable 626A22 626A23 Three-pin, Bayonet Military Connector 626A32 626A33 Integral, 10 ft (3 m) Steel-armored Cable 626A62 626A63 Options (Indicate using prefix letter shown) Low Bias Electronics LB LB Metric Installation M* M* Temperature Output TO TO NOTES: * Metric installation via supplied M081A61 stud, ¼-28 to M6 1.0 TO626A02, TO626A12, TO626A62 versions only. Model TO626A02 features a 3-pin, threaded military connector to accommodate the additional temperature output signal. TO626A03, TO626A13, TO626A63 versions only. Model TO626A03 features a 3-pin, threaded military connector to accommodate the additional temperature output signal. Dimensional drawings for Series 626AX2 and 626AX3 are identical to those for Series 626AX1 shown on pages HOUR SENSORLINE SM WEBSITE

65 Multi-Axis Industrial ICP Accelerometers Measure acceleration simultaneously in up to three axes Through-bolt mounting for simplified alignment Simultaneous radial and axial bearing vibration measurements Interface directly with vibration data collectors and FFT analyzers Multi-axis accelerometers contain two or three independent acceleration sensing elements within the same housing. The sensing elements are oriented in mutually perpendicular geometries in order to respond to vibration in independent, orthogonal directions. Biaxial accelerometers contain two sensing elements whereas triaxial versions contain three. Each sensing axis contains a dedicated, built-in, low-noise, microelectronic signal amplifier whose output signal is delivered to an independent cable lead or connector pin. Multi-axis measurements are useful for radial vs. axial bearing vibration monitoring, machinery foundation troubleshooting, and structural impulse and response studies. Styles for low cost and precision requirements are differentiated by their sensitivity tolerances and extent of supplied NIST traceable calibration. PCB IMI SM Sensors Division toll-free FAX imi@pcb.com Website 37

66 Triaxial Industrial ICP Accelerometers Series 604BX1 Triaxial measurement capability 100 mv/g sensitivity Ring style, side exit connectors Simple connector orientation 350 µg resolution Actual Size Model 604B31 Specifications Dynamic Performance English SI Sensitivity (± 20%) 100 mv/g 10.2 mv/(m/s 2 ) Measurement Range ± 50 g ± 490 m/s 2 Broadband Resolution (1 to 10k Hz) 350 µg 3434 µm/s 2 Frequency Range (± 3 db) 30 to 300k cpm 0.5 to 5000 Hz Mounted Resonant Frequency 600k cpm 10k Hz Amplitude Linearity ± 1% ± 1% Transverse Sensitivity 7% 7% Environmental Shock Limit 5,000 g pk 49k m/s 2 pk Temperature Range -65 to +250 F -54 to +121 C Electrical Settling Time 2.0 sec 2.0 sec Discharge Time Constant 0.3 sec 0.3 sec Excitation Voltage 18 to 28 VDC 18 to 28 VDC Excitation Constant Current 2 to 20 ma 2 to 20 ma Output Impedance < 150 ohm < 150 ohm Output Bias Voltage 8 to 12 VDC 8 to 12 VDC Electrical Case Isolation > 10 8 ohm > 10 8 ohm Mechanical Size (diameter height) in mm Weight 4.4 oz 124 gm Mounting Thread1/4-28 UNF-2A 1/4-28 UNF-2A Mounting Torque 2 to 5 ft-lb 2.7 to 6.8 N-m Sensing Element ceramic/shear ceramic/shear Case Material stainless steel stainless steel Sealing (welded) hermetic IP68 Electrical Connector, 4-pin (side) MIL-C MIL-C Supplied Accessories Model 081A68 Mounting Bolt (1) Single Point Calibration at 100 Hz for each axis (NIST traceable) Options (indicate using prefix letter shown) M Metric installation via supplied M081A68 bolt, M6 1.0 thread Model 604B31 with 4-pin, bayonet military connector Dimensions shown are in inches (millimeters). Series 604BX1 Frequency Response Series 604BX1 Sensitivity Deviation vs. Temperature HOUR SENSORLINE SM WEBSITE

67 Triaxial Industrial ICP Accelerometers Series 604BX1 additional base model configurations Model 604B11 with integral, 10 ft (3 m) polyurethane cable Model 604B61 with integral, 10 ft (3 m) steel-armored, polyurethane cable Available models in this series Triaxial Accelerometers Integral, 10 ft (3 m) polyurethane cable 604B11 Four-pin, bayonet military connector 604B31 Integral, 10 ft (3 m) steel-armored, polyurethane cable 604B61 Options (indicate using prefix letter shown) M Metric installation via supplied M081A68 bolt, M6 1.0 thread IMI SENSORS DIVISION TOLL-FREE

68 Biaxial Industrial ICP Accelerometers Series 605BX1 Biaxial measurement capability 100 mv/g sensitivity Ring style, side exit connectors Simple connector orientation 350 µg resolution Actual Size Model 605B01 Specifications Dynamic Performance English SI Sensitivity (± 20%) 100 mv/g 10.2 mv/(m/s 2 ) Measurement Range ± 50 g ± 490 m/s 2 Broadband Resolution (1 to 10k Hz) 350 µg 3434 µm/s 2 Frequency Range (± 3 db) 30 to 300k cpm 0.5 to 5000 Hz Mounted Resonant Frequency 600k cpm 10k Hz Amplitude Linearity ± 1% ± 1% Transverse Sensitivity 7% 7% Environmental Shock Limit 5,000 g pk 49k m/s 2 pk Temperature Range -65 to +250 F -54 to +121 C Electrical Settling Time 2.0 sec 2.0 sec Discharge Time Constant 0.3 sec 0.3 sec Excitation Voltage 18 to 28 VDC 18 to 28 VDC Excitation Constant Current 2 to 20 ma 2 to 20 ma Output Impedance < 150 ohm < 150 ohm Output Bias Voltage 8 to 12 VDC 8 to 12 VDC Electrical Case Isolation > 10 8 ohm > 10 8 ohm Mechanical Size (diameter height) in mm Weight 4.4 oz 124 gm Mounting Thread1/4-28 UNF-2A 1/4-28 UNF-2A Mounting Torque 2 to 5 ft-lb 2.7 to 6.8 N-m Sensing Element ceramic/shear ceramic/shear Case Material stainless steel stainless steel Sealing (welded) hermetic IP68 Electrical Connector, 3-pin (side) MIL-C-5015 MIL-C-5015 Supplied Accessories Model 081A68 Mounting Bolt (1) Single Point Calibration at 100 Hz for each axis (NIST traceable) Options (indicate using prefix letter shown) M Metric installation via supplied M081A68 bolt, M6 1.0 thread Model 605B01 with 3-pin, threaded military connector Dimensions shown are in inches (millimeters). Series 605BX1 Frequency Response Series 605BX1 Sensitivity Deviation vs. Temperature HOUR SENSORLINE SM WEBSITE

69 Biaxial Industrial ICP Accelerometers Series 605BX1 additional base model configurations Model 605B11 with integral, 10 ft (3 m) polyurethane cable Model 605B31 with 3-pin bayonet, military connector Model 605B61 with integral, 10 ft (3 m) steel-armored, polyurethane cable Available models in this series Three-pin, threaded military connector Integral, 10 ft (3 m) polyurethane cable Three-pin, bayonet military connector Integral, 10 ft (3 m) steel-armored, polyurethane cable Options (indicate using prefix letter shown) M Metric installation via supplied M081A68 bolt, M6 1.0 thread Biaxial Accelerometers 605B01 605B11 605B31 605B61 IMI SENSORS DIVISION TOLL-FREE

70 Triaxial Industrial ICP Accelerometers Series 629AX1 Triaxial measurement capability 100 mv/g sensitivity Block style, side exit connectors Through-hole mounting Simple connector orientation 100 µg resolution Actual Size Model 629A31 with 4-pin, bayonet military connector Model 629A31 Specifications Dynamic Performance English SI Sensitivity (± 5%) 100 mv/g 10.2 mv/(m/s 2 ) Measurement Range ± 50 g ± 490 m/s 2 Broadband Resolution (1 to 10k Hz) 100 µg 981 µm/s 2 Frequency Range: (± 5%) 144 to 120k cpm 2.4 to 2000 Hz (± 10%) 102 to 300k cpm 1.7 to 5000 Hz (± 3 db) 48 to 480k cpm 0.8 to 8000 Hz Mounted Resonant Frequency 1200k cpm 20k Hz Amplitude Linearity ± 1% ± 1% Transverse Sensitivity 5% 5% Environmental Shock Limit 5,000 g pk 49k m/s 2 pk Temperature Range -65 to +250 F -54 to +121 C Electrical Settling Time 3.0 sec 3.0 sec Discharge Time Constant 0.2 sec 0.2 sec Excitation Voltage 18 to 28 VDC 18 to 28 VDC Excitation Constant Current 2 to 20 ma 2 to 20 ma Output Impedance < 100 ohm < 100 ohm Output Bias Voltage 8 to 12 VDC 8 to 12 VDC Electrical Case Isolation > 10 8 ohm > 10 8 ohm Electrical Protection RFI/ESD RFI/ESD Mechanical Size (length width height) in mm Weight 4.9 oz 139 gm Mounting Thread1/4-28 UNF-2A 1/4-28 UNF-2A Mounting Torque 2 to 5 ft-lb 2.7 to 6.8 N-m Sensing Element ceramic/shear ceramic/shear Case Material stainless steel stainless steel Sealing (welded) hermetic IP68 Electrical Connector, 4-pin (side) MIL-C MIL-C Supplied Accessories Model 081A56 Mounting Bolt (1) Full Calibration from 600 to 120k cpm for each axis (NIST traceable) Options (indicate using prefix letter shown) LB Low bias electronics for operation from 12 to 28 VDC excitation voltage M Metric installation via supplied M081A59 bolt, M6 1.0 thread Dimensions shown are in inches (millimeters). Series 629AX1 Frequency Response Series 629AX1 Sensitivity Deviation vs. Temperature HOUR SENSORLINE SM WEBSITE

71 Triaxial Industrial ICP Accelerometers Series 629AX1 additional base model configurations Actual Size Model 629A11 with integral, 10 ft (3 m) polyurethane cable Actual Size Model 629A61 with integral, 10 ft (3 m) steel-armored, polyurethane cable Available models in this series Triaxial Accelerometers Integral, 10 ft (3 m) polyurethane cable 629A11 Four-pin, bayonet military connector 629A31 Integral, 10 ft (3 m) steel-armored, polyurethane cable 629A61 Options (indicate using prefix letter shown) LB Low bias electronics for operation from 12 to 28 VDC excitation voltage M Metric installation via supplied M081A59 bolt, M6 1.0 thread IMI SENSORS DIVISION TOLL-FREE

72 Triaxial Industrial ICP Accelerometers Series 629AX (21.2) Triaxial measurement capability 500 mv/g sensitivity Block style, side exit connectors Simple connector orientation 120 µg resolution Model 629A32 with 4-pin, bayonet military connector Actual Size Model 629A32 Specifications Dynamic Performance English SI Sensitivity (± 5%) 500 mv/g 51 mv/(m/s 2 ) Measurement Range ± 10 g ± 98 m/s 2 Broadband Resolution (1 to 10k Hz) 120 µg 1177 µm/s 2 Frequency Range: (± 5%) 144 to 120k cpm 2.4 to 2000 Hz (± 10%) 102 to 300k cpm 1.7 to 5000 Hz (± 3 db) 48 to 480k cpm 0.8 to 8000 Hz Mounted Resonant Frequency 1200k cpm 20k Hz Amplitude Linearity ± 1% ± 1% Transverse Sensitivity 5% 5% Environmental Shock Limit 5,000 g pk 49k m/s 2 pk Temperature Range -65 to +200 F -54 to +94 C Electrical Settling Time 2.0 sec 2.0 sec Discharge Time Constant 0.2 sec 0.2 sec Excitation Voltage 18 to 28 VDC 18 to 28 VDC Excitation Constant Current 2 to 20 ma 2 to 20 ma Output Impedance < 100 ohm < 100 ohm Output Bias Voltage 8 to 12 VDC 8 to 12 VDC Electrical Case Isolation > 10 8 ohm > 10 8 ohm Electrical Protection RFI/ESD RFI/ESD Mechanical Size (length width height) in mm Weight 4.9 oz 139 gm Mounting Thread1/4-28 UNF-2A 1/4-28 UNF-2A Mounting Torque 2 to 5 ft-lb 2.7 to 6.8 N-m Sensing Element ceramic/shear ceramic/shear Case Material stainless steel stainless steel Sealing (welded) hermetic IP68 Electrical Connector, 4-pin (side) MIL-C MIL-C Supplied Accessories Model 081A56 Mounting Bolt (1) Full Calibration from 600 to 120k cpm for each axis (NIST traceable) Options (indicate using prefix letter shown) LB Low bias electronics for operation from 12 to 28 VDC excitation voltage M Metric installation via supplied M081A59 bolt, M6 1.0 thread Dimensions shown are in inches (millimeters). Series 629AX2 Frequency Response Series 629AX2 Sensitivity Deviation vs. Temperature HOUR SENSORLINE SM WEBSITE

73 Triaxial Industrial ICP Accelerometers Series 629AX2 additional base model configurations Actual Size Model 629A12 with integral, 10 ft (3 m) polyurethane cable Actual Size Model 629A62 with integral, 10 ft (3 m) steel-armored, polyurethane cable Available models in this series Triaxial Accelerometers Integral, 10 ft (3 m) polyurethane cable 629A12 Four-pin, bayonet military connector 629A32 Integral, 10 ft (3 m) steel-armored, polyurethane cable 629A62 Options (indicate using prefix letter shown) LB Low bias electronics for operation from 12 to 28 VDC excitation voltage M Metric installation via supplied M081A59 bolt, M6 1.0 thread IMI SENSORS DIVISION TOLL-FREE

74 Triaxial Industrial ICP Accelerometers Model 629M05 Triaxial Accelerometer Triaxial measurement capability 100 mv/g sensitivity Cylindrical style with top exit cable Alignment pin insures consistent installation orientation 560 µg resolution Actual Size Model 629M06 Triaxial ICP Accelerometer Triaxial measurement capability 100 mv/g sensitivity Block style with side exit connector Simple connector orientation 560 µg resolution Actual Size HOUR SENSORLINE SM WEBSITE

75 High Temperature Industrial Accelerometers Paper machine dryer sections Steel mills Hot conveyor systems Reactors and digesters Petrochemical pumps Food processing equipment It is often necessary to monitor the vibration levels of rotating machinery operating at elevated temperatures or in high temperature environments. Such circumstances place extreme demands on vibration sensors and require the use of accelerometers with special design characteristics that extend their useable temperature range beyond that of other conventional units. For these demanding situations, IMI offers two styles of high-temperature vibration sensors. A variety of ICP industrial accelerometers are available with the High Temperature, HT option, which extends their useable temperature range up to 325 F (163 C). This option replaces their standard, internal signal conditioning circuitry with circuitry that has been specifically designed and tested to reliably withstand elevated temperature extremes. However, there is a slight trade-off with this approach, it will compromise the frequency response characteristics of the sensor. These accelerometers, although equipped with the HT option, will operate in the same manner, and with the same cabling, data collection, and signal conditioning equipment, as standard, ICP industrial accelerometers. For extreme, high-temperature requirements, chargemode accelerometers are recommended. Designed to withstand temperatures up to 500 F (260 C), charge-mode accelerometers do not contain internal signal conditioning circuits which impose temperature limits on standard ICP accelerometers. However, since there are no signal conditioning circuits within charge-mode accelerometers, alternative cabling and signal conditioning equipment is required. To simplify the installation of these sensors, complete kits are offered that include the necessary low-noise cable and in-line charge converter that adapt the charge-mode accelerometers to conventional ICP sensor signal conditioners and data collection equipment. PCB IMI SM Sensors Division toll-free FAX imi@pcb.com Website 47

76 High Temperature, Ceramic Industrial ICP Accelerometers High Temperature, Industrial ICP Accelerometers with Ceramic Sensing Element Model HT622A01 Model HT623C01 Model HT625B01 Dynamic Performance English SI English SI English SI Throughhole Mount Sensitivity (5%) 100 mv/g 10.2 mv/(m/s 2 ) 100 mv/g 10.2 mv/(m/s 2 ) 100 mv/g 10.2 mv/(m/s 2 ) Measurement Range ± 50 g ± 490 m/s 2 ± 50 g ± 490 m/s 2 ± 50 g ± 490 m/s 2 Broadband Resolution (1 to 10k Hz) 150 µg 1472 µm/s µg 2943 µm/s µg 1962 µm/s 2 Frequency Range: (± 5%) 35 to 240k cpm 0.58 to 4000 Hz 144 to 480k cpm 2.4 to 8 khz 30 to 240k cpm 0.5 to 4000 Hz (± 10%) 25 to 300k cpm 0.42 to 5000 Hz 102 to 540k cpm 1.7 to 9 khz 22 to 360k cpm 0.37 to 6000 Hz (± 3 db) 12 to 480k cpm 0.2 to 8000 Hz 48 to 900k cpm 0.8 to 15 khz 12 to 600k cpm 0.2 to 10k Hz Mounted Resonant Frequency 1200k cpm 20k Hz 2400k cpm 40k Hz 1380k cpm 23k Hz Amplitude Linearity ± 1% ± 1% ± 1% ± 1% ± 1% ± 1% Transverse Sensitivity 5% 5% 5% 5% 5% 5% Environmental Low Noise High Frequency Shock Limit 5000 g pk 49k m/s 2 pk 5000 g pk 49k m/s 2 pk 2000 g pk 19.6k m/s 2 pk Temperature Range -65 to +325 F -54 to +163 C -65 to +325 F -54 to +163 C -65 to +325 F -54 to +163 C Electrical Settling Time 5 sec 5 sec 1 sec 1 sec 8 sec 8 sec Discharge Time Constant 0.8 sec 0.8 sec 0.2 sec 0.2 sec 1.0 sec 1.0 sec Excitation Voltage 18 to 28 VDC 18 to 28 VDC 18 to 28 VDC 18 to 28 VDC 18 to 28 VDC 18 to 28 VDC Constant Current 2 to 10 ma 2 to 10 ma 2 to 10 ma 2 to 10 ma 2 to 10 ma 2 to 10 ma Output Impedance < 700 ohm < 700 ohm < 700 ohm < 700 ohm < 250 ohm < 250 ohm Output Bias (at 4 ma) 8 to 14 VDC 8 to 14 VDC 7 to 14 VDC 7 to 14 VDC 11 to 14 VDC 11 to 14 VDC Case Isolation > 10 8 ohm > 10 8 ohm > 10 8 ohm > 10 8 ohm > 10 8 ohm > 10 8 ohm Electrical Protection RFI/ESD RFI/ESD RFI/ESD RFI/ESD Mechanical Size 7/8 hex 2.0 in 7/8 in hex 50.8 mm 11/16 hex 1.97 in 11/16 in hex 50 mm 1.36 dia in 35 dia. 29 mm Weight 3.3 oz 93 gm 1.80 oz 51 gm 5.1 oz 145 gm Mounting Thread1/4-28 UNF-2B 1/4-28 UNF-2B 1/4-28 UNF-2B 1/4-28 UNF-2B 1/4-28 UNF-2A 1/4-28 UNF-2A Mounting Torque 2 to 5 ft-lb 2.7 to 6.8 N-m 2 to 5 ft-lb 2.7 to 6.8 N-m 2 to 5 ft-lb 2.7 to 6.8 N-m Sensing Element/Geometry ceramic/shear ceramic/shear ceramic/shear ceramic/shear ceramic/shear ceramic/shear Case Material stainless steel stainless steel stainless steel stainless steel stainless steel stainless steel Sealing welded hermetic welded hermetic welded hermetic welded hermetic welded hermetic welded hermetic Connector Type (2-pin)/Position MIL-C-5015/Top MIL-C-5015/Top MIL-C-5015/Top MIL-C-5015/Top MIL-C-5015/Side MIL-C-5015/Side Supplied Accessories Mounting Stud or Bolt Model 081A40 (1) Model 081A40 (1) Model 081A73 (1) Calibration (NIST traceable) From 600 to 240k cpm From 600 to 480k cpm From 600 to 240k cpm Options (indicate using prefix letter shown) Metric Installation M* M* M NOTES: *Metric installation via supplied M081A61 stud, 1/4-28 to M6 1.0 Metric installation via supplied M081A73 bolt, M6 1.0 thread Models HT622A01, HT623C01, and HT625B01 Sensitivity Deviation vs. Temperature HOUR SENSORLINE SM WEBSITE

77 High Temperature, Quartz Industrial ICP Accelerometers High Temperature, Industrial ICP Accelerometers with Quartz Sensing Element Model HT628F01 Model HT624A01 Dynamic Performance English SI English SI Sensitivity (± 5%) 100 mv/g 10.2 mv/(m/s 2 ) 100 mv/g 10.2 mv/(m/s 2 ) Measurement Range ± 50 g ± 490 m/s 2 ± 50 g ± 490 m/s 2 Broadband Resolution (1 to 10k Hz) 1000 µg 9800 µm/s µg 9810 µm/s 2 Frequency Range: (± 5%) 144 to 180k cpm 2.4 to 3000 Hz 144 to 120k cpm 2.4 to 2000 Hz (± 10%) 102 to 300k cpm 1.7 to 5000 Hz 102 to 180k cpm 1.7 to 3000 Hz (± 3 db) 48 to 480k cpm 0.8 to 8000 Hz 48 to 300k cpm 0.8 to 5000 Hz Mounted Resonant Frequency 1080k cpm 18k Hz 1080k cpm 18k Hz Amplitude Linearity ± 1% ± 1% ± 1% ± 1 % Transverse Sensitivity 5% 5% 5% 5% Environmental Quartz Element Quartz Element Shock Limit 1,000 g pk 981 m/s 2 pk 1,000 g pk 981 m/s 2 pk Temperature Range -65 to +325 F -54 to +162 C - 65 to +325 F - 54 to +162 C Electrical Settling Time 3 sec 3 sec 3 sec 3 sec Discharge Time Constant 0.5 sec 0.5 sec 0.2 sec 0.2 sec Excitation Voltage 18 to 28 VDC 18 to 28 VDC 18 to 28 VDC 18 to 28 VDC Excitation Constant Current 2 to 10 ma 2 to 10 ma 2 to 10 ma 2 to10 ma Output Impedance < 500 ohm < 500 ohm < 500 ohm < 500 ohm Output Bias Voltage 8 to 12 VDC 8 to 12 VDC 8 to 12 VDC 8 to 12 VDC Electrical Case Isolation > 10 8 ohm > 10 8 ohm > 10 8 ohm > 10 8 ohm Electrical Protection RFI/ESD RFI/ESD RFI/ESD RFI/ESD Mechanical Size 7/8 hex 2.05 in 7/8 in hex 52.1 mm dia in 34.9 dia mm Weight 3.2 oz 91 gm 5.1 oz 145 gm Mounting Thread1/4-28 UNF-2B 1/4-28 UNF-2B 1/4-28 UNF-2A 1/4-28 UNF-2A Mounting Torque 2 to 5 ft-lb 2.7 to 6.8 N-m 2 to 5 ft-lb 2.7 to 6.8 N-m Sensing Element quartz/shear quartz/shear quartz/shear quartz/shear Case Material stainless steel stainless steel stainless steel stainless steel Sealing (Welded) hermetic hermetic hermetic hermetic Electrical Connector, 2-pin/Position MIL-C-5015/Top MIL-C-5015/Top MIL-C-5015/Side MIL-C-5015/Side Supplied Accessories Mounting Stud or Bolt Model 081A40 (1) Model 081A57 (1) Calibration (NIST traceable) From 600 to 300k cpm From 600 to 120k cpm Options (Indicate using prefix letter shown) Metric Installation M* M NOTES: *Metric installation via supplied M081A61 stud, 1/4-28 to M6 1.0 Metric installation via supplied M081A58 bolt, M6 1.0 thread Models HT628F01 and HT624A01 Sensitivity Deviation vs. temperature IMI SENSORS DIVISION TOLL-FREE

78 High Temperature, Charge-Mode Industrial Accelerometer Kits Series 600AXX Industrial Charge-Mode Accelerometer Kits Sensor operating temperature range up to 500 F (260 C) Choice of several sensitivities to suit specific measurement requirements Frequency ranges to 10k Hz The Model 612A01 Charge-Mode Industrial Accelerometer offers the capability of surviving the highest ambient and surface temperatures of any of IMI s industrial vibration sensors. This is accomplished by utilizing a stainless steel, hermetically sealed, welded housing and eliminating the active electrical signal conditioning components within the unit. (The built-in signal conditioning electronics of ICP industrial accelerometers impose a limiting factor on the temperature range for those units). Charge-mode accelerometers, however, possess unique signal conditioning requirements. Their output signal is at a very high impedance which is more susceptible to extraneous noise influences. To minimize such noise, a short, low-noise cable should be used between the sensor and signal conditioner. The required signal conditioner, also called a charge converter or charge amplifier, serves to convert the high impedance charge signal into a low impedance voltage signal that can then be transmitted over long cable lengths and be interrogated by vibration data collectors, readout, recording, and analysis instruments. For seamless connectivity to vibration data collectors and analysis instruments, IMI offers charge-mode sensor kits that include the Model 612A01 accelerometer, along with an appropriate short length of low-noise cable and a charge converter that provides the desired, system voltage sensitivity. The charge converters will operate from any standard ICP sensor signal conditioner, however they must be located in an environment having a moderate, ambient temperature. For ease of set-up and implementation, charge sensor kits are furnished with a system calibration certificate that provides the voltage sensitivity of the sensor/cable/charge converter system over the specified frequency range. Model 612A01 Industrial Charge-Mode Accelerometer with 2-pin threaded military connector Series 422E2X In-line Charge Converter Model 045M06 High-Temperature, Armored Teflon Cable 10 ft (3 m) length Model 045ER010CJ High-Temperature Teflon Cable 10 ft (3 m) length HOUR SENSORLINE SM WEBSITE

79 High Temperature, Charge-Mode Industrial Accelerometer Kits High Temperature, Charge-Mode Industrial Accelerometer Kits Available Kit Models 10 mv/g Kits 100 mv/g Kits 1000 mv/g Kits with 10 ft (3 m) 045ER010CJ Teflon Cable Model 600A06 Model 600A02 Model 600A07 with 10 ft (3 m) 045M06 Armored Cable Model 600A08 Model 600A03 Model 600A09 Dynamic Performance (Kit) English SI English SI English SI Sensitivity (15%) 10 mv/g 1.02 mv/(m/s 2 ) 100 mv/g 10.2 mv/(m/s 2 ) 1000 mv/g 102 mv/(m/s 2 ) Measurement Range 250 g 2452 m/s 2 25 g 245 m/s g 24.5 m/s 2 Broadband Resolution (1 to 10k Hz) 410 µg 4020 µm/s µg 1180 µm/s µg 1180 µm/s 2 Frequency Range: (± 10%) 100 to 180k cpm 1.67 to 3000 Hz 100 to 180k cpm 1.67 to 3000 Hz 100 to 180k cpm 1.67 to 3000 Hz (± 3 db) 60 to 600k cpm 1 to 10k Hz 60 to 600k cpm 1 to 10k Hz 60 to 600k cpm 1 to 10k Hz Mounted Resonant Frequency (sensor) 1800k cpm 30 khz 1800k cpm 30 khz 1800k cpm 30 khz Amplitude Linearity ± 1% ± 1% ± 1% ± 1% ± 1% ± 1% Transverse Sensitivity 5% 5% 5% 5% 5% 5% Environmental Model 612A01 Charge-Mode Industrial Accelerometer Model 045ER010CJ Teflon Cable Model 045M06 Armored Teflon Cable Series 422E2X In-Line Charge Converter Shock Limit (sensor) 5000 g pk 49k m/s 2 pk 5000 g pk 49k m/s 2 pk 5000 g pk 49k m/s 2 pk Temperature Range (sensor) -65 to +500 F -54 to +260 C -65 to +500 F -54 to +260 C -65 to +500 F -54 to +260 C Temperature Range (charge converter) -65 to +250 F -54 to +121 C -65 to +250 F -54 to +121 C -65 to +250 F -54 to +121 C Electrical (Charge Converter) (422E21) (422E20) (422E22) Settling Time (sensor at 70 F (21 C)) 15 sec 15 sec 15 sec 15 sec 15 sec 15 sec Settling Time (sensor at 500 F (260 C)) 240 sec 240 sec 240 sec 240 sec 240 sec 240 sec Discharge Time Constant 0.5 sec 0.5 sec 0.5 sec 0.5 sec 0.5 sec 0.5 sec Excitation Voltage 18 to 28 VDC 18 to 28 VDC 18 to 28 VDC 18 to 28 VDC 18 to 28 VDC 18 to 28 VDC Constant Current 2 to 20 ma 2 to 20 ma 2 to 20 ma 2 to 20 ma 2 to 20 ma 2 to 20 ma Output Impedance < 100 ohm < 100 ohm < 100 ohm < 100 ohm < 100 ohm < 100 ohm Output Bias 12 to 15 VDC 12 to 15 VDC 12 to 15 VDC 12 to 15 VDC 12 to 15 VDC 12 to 15 VDC Base Isolation (sensor) > 10 8 ohm > 10 8 ohm > 10 8 ohm > 10 8 ohm > 10 8 ohm > 10 8 ohm Mechanical (612A01 Sensor) Size (hex height) 7/ in 7/8 in 53.9 mm 7/ in 7/8 in 53.9 mm 7/ in 7/8 in 53.9 mm Weight 2.95 oz 83.6 gm 2.95 oz 83.6 gm 2.95 oz 83.6 gm Mounting Thread 1/4-28 UNF-2B 1/4-28 UNF-2B 1/4-28 UNF-2B 1/4-28 UNF-2B 1/4-28 UNF-2B 1/4-28 UNF-2B Mounting Torque 2 to 5 ft-lb 2.7 to 6.8 N-m 2 to 5 ft-lb 2.7 to 6.8 N-m 2 to 5 ft-lb 2.7 to 6.8 N-m Sensing Element/Geometry ceramic/shear ceramic/shear ceramic/shear ceramic/shear ceramic/shear ceramic/shear Case Material stainless steel stainless steel stainless steel stainless steel stainless steel stainless steel Sealing welded hermetic welded hermetic welded hermetic welded hermetic welded hermetic welded hermetic Connector Type (2-pin)/Position MIL-C-5015/Top MIL-C-5015/Top MIL-C-5015/Top MIL-C-5015/Top MIL-C-5015/Top MIL-C-5015/Top Mechanical (Charge Converter) Size (diameter length) in mm in mm in mm Weight 2.46 oz 69.7 gm 2.46 oz 69.7 gm 2.46 oz 69.7 gm Case Material stainless steel stainless steel stainless steel stainless steel stainless steel stainless steel Sealing welded hermetic welded hermetic welded hermetic welded hermetic welded hermetic welded hermetic Input Connector Type (2-pin) MIL-C MIL-C MIL-C MIL-C MIL-C MIL-C Output Connector Type (2-pin) MIL-C-5015 MIL-C-5015 MIL-C-5015 MIL-C-5015 MIL-C-5015 MIL-C-5015 Supplied Accessories Mounting Stud Model 081A40 (1) Model 081A40 (1) Model 081A40 (1) Calibration (NIST traceable) From 600 to 180k cpm From 600 to 180k cpm From 600 to 180k cpm Options (indicate using prefix letter shown) Metric Installation M* M* M* NOTES: *Metric installation via supplied M081A61 stud, 1/4-28 to M6 1.0 IMI SENSORS DIVISION TOLL-FREE

80 High Temperature, Charge-Mode Industrial Accelerometer Model 612A01 Self-generating, piezoelectric sensing element 26 pc/g sensitivity High frequency range to 10k Hz Actual Size Model 612A01 Specifications Dynamic Performance English SI Charge Sensitivity (± 10%) 26 pc/g 2.6 pc/(m/s 2 ) Frequency Range: (+ 10%) 300k cpm 5000 Hz (+ 3 db) 600k cpm 10k Hz Mounted Resonant Frequency 1800k cpm 30k Hz Amplitude Linearity ± 1% ± 1% Transverse Sensitivity 5% 5% Environmental Shock Limit 5,000 g pk 49k m/s 2 pk Temperature Range -65 to +500 F -54 to +260 C Electrical Polarity Negative Negative Capacitance 1500 pf 1500 pf Insulation Resistance (at 70 F) ohm ohm Insulation Resistance (at 500 F) ohm ohm Electrical Base Isolation > 10 8 ohm > 10 8 ohm Mechanical Size (hex height) 7/ in 7/8 in 53.8 mm Weight 2.95 oz 83.6 gm Mounting Thread 1/4-28 UNF-2B 1/4-28 UNF-2B Mounting Torque 2 to 5 ft-lb 2.7 to 6.8 N-m Sensing Element ceramic/shear ceramic/shear Case Material stainless steel stainless steel Sealing (welded) hermetic hermetic Electrical Connector, 2-pin (top) MIL-C-5015 MIL-C-5015 Supplied Accessories Model 081A40 Mounting Stud (1) Full Calibration from 600 to 180k cpm (NIST traceable) Options (indicate using prefix letter shown) M Metric Installation via supplied M081A61 stud, 1/4-28 to M6 1.0 Model 612A01 with 2-pin, threaded military connector Dimensions shown are in inches (millimeters). Model 612A01 Frequency Response Model 612A01 Sensitivity Deviation vs. Temperature HOUR SENSORLINE SM WEBSITE

81 4-20 ma Vibration Sensing Transmitters Two-wire, loop-powered, current output vibration sensors Choice of acceleration or velocity output signals Interface with existing process control, monitoring, and alarm systems Reduce sophisticated analysis requirements Loop-powered, 4-20 ma output, vibration sensing transmitters serve to provide measurement signals that are representative of the overall vibration levels being generated by all types of rotating machinery. This vibration signal may be interfaced with many types of current-loop monitoring equipment, such as recorders, alarms, PLC, DCS, and SCADA systems. The vibration sensing transmitters capitalize on the use of existing process control equipment and HMI software for monitoring machinery vibration and alarming of excessive vibration levels. This practice offers the ability to continuously monitor machinery and provide an early warning detection of impending failure. With this approach, existing process control technicians may be utilized for monitoring the vibration levels while skilled vibration specialists are called upon only in the event that the vibration signal warrants more detailed signal analysis. A choice of velocity or acceleration measurement signals are offered with a variety of amplitude and frequency ranges to suit the particular application. All models feature an optional analog output signal connection (RV option) for conducting frequency analysis and machinery diagnostics. PCB IMI SM Sensors Division toll-free FAX imi@pcb.com Website 53

82 4-20 ma Vibration Sensing Transmitters Dimensional drawings on page ma, Peak Low Range Mid Range High Range Velocity Sensing Transmitters Series 640AX0 Series 640AX1 Series 640AX2 Dynamic Performance English SI English SI English SI Current Output 4-20 ma 4-20 ma 4-20 ma 4-20 ma 4-20 ma 4-20 ma Measurement Range 0 to 0.5 in/s pk 0 to 12.7 mm/s pk 0 to 1.0 in/s pk 0 to 25.4 mm/s pk 0 to 2.0 in/s pk 0 to 50.8 mm/s pk Resolution in/s pk 0.13 mm/s pk in/s pk 0.13 mm/s pk 0.01 in/s pk 0.26 mm/s pk Frequency Range (± 10%) 180 to 60k cpm 3 to 1000 Hz 180 to 60k cpm 3 to 1000 Hz 180 to 60k cpm 3 to 1000 Hz Amplitude Linearity ± 1% ± 1% ± 1% ± 1% ± 1% ± 1% Environmental Temperature Range -40 to +185 F -40 to +85 C -40 to +185 F -40 to +85 C -40 to +185 F -40 to +85 C Electrical Settling Time < 60 sec < 60 sec < 60 sec < 60 sec < 60 sec < 60 sec Supply Voltage Required 15 to 30 VDC 15 to 30 VDC 15 to 30 VDC 15 to 30 VDC 15 to 30 VDC 15 to 30 VDC Maximum Load Resistance 50 (Vs-15) ohm 50 (Vs-15) ohm 50 (Vs-15) ohm 50 (Vs-15) ohm 50 (Vs-15) ohm 50 (Vs-15) ohm Electrical Case Isolation > 10 8 ohm > 10 8 ohm > 10 8 ohm > 10 8 ohm > 10 8 ohm > 10 8 ohm Mechanical Size (hex height) 7/ in 7/8 in 63 mm 7/ in 7/8 in 63 mm 7/ in 7/8 in 63 mm Weight 3.17 oz 90 gm 3.17 oz 90 gm 3.17 oz 90 gm Mounting Thread 1/4-28 UNF-2B 1/4-28 UNF-2B 1/4-28 UNF-2B 1/4-28 UNF-2B 1/4-28 UNF-2B 1/4-28 UNF-2B Mounting Torque 2 to 5 ft-lb 2.7 to 6.8 N-m 2 to 5 ft-lb 2.7 to 6.8 N-m 2 to 5 ft-lb 2.7 to 6.8 N-m Sensing Element ceramic/shear ceramic/shear ceramic/shear ceramic/shear ceramic/shear ceramic/shear Case Material stainless steel stainless steel stainless steel stainless steel stainless steel stainless steel Sealing (welded) hermetic hermetic hermetic hermetic hermetic hermetic Electrical Connector, 2-pin (top) MIL-C-5015 MIL-C-5015 MIL-C-5015 MIL-C-5015 MIL-C-5015 MIL-C-5015 Supplied Accessories Mounting Stud Model 081A40 (1) Model 081A40 (1) Model 081A40 (1) Calibration (NIST traceable) 0, 10, 100, and 1000 Hz 0, 10, 100, and 1000 Hz 0, 10, 100, and 1000 Hz Available Versions Two-pin, Threaded Military Connector 640A00 640A01 640A02 Integral, 10 ft (3 m) Polyurethane Cable 640A10 640A11 640A12 Integral, 10 ft (3 m) Steel-Armored Cable 640A60 640A61 640A62 Explosion Proof Condulet Enclosure EP640A00 EP640A01 EP640A02 Options (indicate using prefix letter shown) Metric Installation M* M* M* Raw Vibration Signal RV RV RV Intrinsically Safe CS, EX, FM CS, EX, FM CS, EX, FM NOTES: * Metric installation via supplied M081A61 stud, 1/4-28 to M6 1.0 Raw vibration signal option adds third connector pin or cable lead upon which a 100 mv/g analog acceleration signal is present for signal analysis purposes Models 640A00, 640A01, and 640A02 with 2-pin threaded military connector Models 640A10, 640A11, and 640A12 with integral, 10 ft (3 m) polyurethane cable Models 640A60, 640A61, and 640A62 with integral, 10 ft (3 m) steel-armored polyurethane cable Models EP640A00, EP640A01, and EP640A02 with option EP explosion-proof condulet enclosure HOUR SENSORLINE SM WEBSITE

83 4-20 ma Vibration Sensing Transmitters Dimensional drawings on page ma, RMS Low Range Mid Range High Range Velocity Sensing Transmitters Series 641AX0 Series 641AX1 Series 641AX2 Dynamic Performance English SI English SI English SI Current Output 4-20 ma 4-20 ma 4-20 ma 4-20 ma 4-20 ma 4-20 ma Measurement Range 0 to 0.5 in/s rms 0 to 12.7 mm/s rms 0 to 1.0 in/s rms 0 to 25.4 mm/s rms 0 to 2.0 in/s rms 0 to 50.8 mm/s rms Resolution in/s rms 0.13 mm/s rms in/s rms 0.13 mm/s rms 0.01 in/s rms 0.26 mm/s rms Frequency Range (± 10%) 600 to 60k cpm 10 to 1000 Hz 600 to 60k cpm 10 to 1000 Hz 600 to 60k cpm 10 to 1000 Hz Amplitude Linearity ± 1% ± 1% ± 1% ± 1% ± 1% ± 1% Environmental Temperature Range -40 to +185 F -40 to +85 C -40 to +185 F -40 to +85 C -40 to +185 F -40 to +85 C Electrical Settling Time < 60 sec < 60 sec < 60 sec < 60 sec < 60 sec < 60 sec Supply Voltage Required 15 to 30 VDC 15 to 30 VDC 15 to 30 VDC 15 to 30 VDC 15 to 30 VDC 15 to 30 VDC Maximum Load Resistance 50 (Vs-15) ohm 50 (Vs-15) ohm 50 (Vs-15) ohm 50 (Vs-15) ohm 50 (Vs-15) ohm 50 (Vs-15) ohm Electrical Case Isolation > 10 8 ohm > 10 8 ohm > 10 8 ohm > 10 8 ohm > 10 8 ohm > 10 8 ohm Mechanical Size (hex height) 7/ in 7/8 in 63 mm 7/ in 7/8 in 63 mm 7/ in 7/8 in 63 mm Weight 3.17 oz 90 gm 3.17 oz 90 gm 3.17 oz 90 gm Mounting Thread 1/4-28 UNF-2B 1/4-28 UNF-2B 1/4-28 UNF-2B 1/4-28 UNF-2B 1/4-28 UNF-2B 1/4-28 UNF-2B Mounting Torque 2 to 5 ft-lb 2.7 to 6.8 N-m 2 to 5 ft-lb 2.7 to 6.8 N-m 2 to 5 ft-lb 2.7 to 6.8 N-m Sensing Element ceramic/shear ceramic/shear ceramic/shear ceramic/shear ceramic/shear ceramic/shear Case Material stainless steel stainless steel stainless steel stainless steel stainless steel stainless steel Sealing (welded) hermetic hermetic hermetic hermetic hermetic hermetic Electrical Connector, 2-pin (top) MIL-C-5015 MIL-C-5015 MIL-C-5015 MIL-C-5015 MIL-C-5015 MIL-C-5015 Supplied Accessories Mounting Stud Model 081A40 (1) Model 081A40 (1) Model 081A40 (1) Calibration (NIST traceable) 0, 10, 100, and 1000 Hz 0, 10, 100, and 1000 Hz 0, 10, 100, and 1000 Hz Available Versions Two-pin, Threaded Military Connector 641A00 641A01 641A02 Integral, 10 ft (3 m) Polyurethane Cable 641A10 641A11 641A12 Integral, 10 ft (3 m) Steel-Armored Cable 641A60 641A61 641A62 Explosion Proof Condulet Enclosure EP641A00 EP641A01 EP641A02 Options (indicate using prefix letter shown) Metric Installation M* M* M* Raw Vibration Signal RV RV RV Intrinsically Safe CS, EX, FM CS, EX, FM CS, EX, FM NOTES: * Metric installation via supplied M081A61 stud, 1/4-28 to M6 1.0 Raw vibration signal option adds third connector pin or cable lead upon which a 100 mv/g analog acceleration signal is present for signal analysis purposes Models 641A00, 641A01, and 641A02 with 2-pin threaded military connector Models 641A10, 641A11, and 641A12 with integral, 10 ft (3 m) polyurethane cable Models 641A60, 641A61, and 641A62 with integral, 10 ft (3 m) steel-armored polyurethane cable Models EP641A00, EP641A01, and EP641A02 with option EP explosion-proof condulet enclosure IMI SENSORS DIVISION TOLL-FREE

84 4-20 ma Vibration Sensing Transmitters Dimensional drawings on page ma, RMS Acceleration Sensing Transmitters Low Range Low Frequency Low Range Mid Frequency Series 645AX0 Series 645AX1 Series 645AX2 Low Range High Frequency Dynamic Performance English SI English SI English SI Current Output 4-20 ma 4-20 ma 4-20 ma 4-20 ma 4-20 ma 4-20 ma Measurement Range 0 to 5 g rms 0 to 49 m/s 2 rms 0 to 5 g rms 0 to 49 m/s 2 rms 0 to 5 g rms 0 to 49 m/s 2 rms Resolution g rms 0.24 m/s 2 rms g rms 0.24 m/s 2 rms g rms 0.24 m/s 2 rms Frequency Range (± 10%) 180 to 60k cpm 3 to 1000 Hz 180 to 300k cpm 3 to 5000 Hz 180 to 600k cpm 3 to 10k Hz Amplitude Linearity ± 1% ± 1% ± 1% ± 1% ± 1% ± 1% Environmental Temperature Range -40 to +185 F -40 to +85 C -40 to +185 F -40 to +85 C -40 to +185 F -40 to +85 C Electrical Settling Time < 30 sec < 30 sec < 30 sec < 30 sec < 30 sec < 30 sec Supply Voltage Required 15 to 30 VDC 15 to 30 VDC 15 to 30 VDC 15 to 30 VDC 15 to 30 VDC 15 to 30 VDC Maximum Load Resistance 50 (Vs-15) ohm 50 (Vs-15) ohm 50 (Vs-15) ohm 50 (Vs-15) ohm 50 (Vs-15) ohm 50 (Vs-15) ohm Electrical Case Isolation > 10 8 ohm > 10 8 ohm > 10 8 ohm > 10 8 ohm > 10 8 ohm > 10 8 ohm Mechanical Size (hex height) 7/ in 7/8 in 63 mm 7/ in 7/8 in 63 mm 7/ in 7/8 in 63 mm Weight 3.17 oz 90 gm 3.17 oz 90 gm 3.17 oz 90 gm Mounting Thread 1/4-28 UNF-2B 1/4-28 UNF-2B 1/4-28 UNF-2B 1/4-28 UNF-2B 1/4-28 UNF-2B 1/4-28 UNF-2B Mounting Torque 2 to 5 ft-lb 2.7 to 6.8 N-m 2 to 5 ft-lb 2.7 to 6.8 N-m 2 to 5 ft-lb 2.7 to 6.8 N-m Sensing Element ceramic/shear ceramic/shear ceramic/shear ceramic/shear ceramic/shear ceramic/shear Case Material stainless steel stainless steel stainless steel stainless steel stainless steel stainless steel Sealing (welded) hermetic hermetic hermetic hermetic hermetic hermetic Electrical Connector, 2-pin (top) MIL-C-5015 MIL-C-5015 MIL-C-5015 MIL-C-5015 MIL-C-5015 MIL-C-5015 Supplied Accessories Mounting Stud Model 081A40 (1) Model 081A40 (1) Model 081A40 (1) Calibration (NIST traceable) 0, 10, 100, and 1000 Hz 0, 10, 100, 1000, and 5000 Hz 0, 10, 100, 1000, and 10k Hz Available Versions Two-pin, Threaded Military Connector 645A00 645A01 645A02 Integral, 10 ft (3 m) Polyurethane Cable 645A10 645A11 645A12 Integral, 10 ft (3 m) Steel-Armored Cable 645A60 645A61 645A62 Explosion Proof Condulet Enclosure EP645A00 EP645A01 EP645A02 Options (indicate using prefix letter shown) Metric Installation M* M* M* Raw Vibration Signal RV RV RV Intrinsically Safe CS, EX, FM CS, EX, FM CS, EX, FM NOTES: * Metric installation via supplied M081A61 stud, 1/4-28 to M6 1.0 Raw vibration signal option adds third connector pin or cable lead upon which a 100 mv/g analog acceleration signal is present for signal analysis purposes Models 645A00, 645A01, and 645A02 with 2-pin threaded military connector Models 645A10, 645A11, and 645A12 with integral, 10 ft (3 m) polyurethane cable Models 645A60, 645A61, and 645A62 with integral, 10 ft (3 m) steel-armored polyurethane cable Models EP645A00, EP645A01, and EP645A02 with option EP explosion-proof condulet enclosure HOUR SENSORLINE SM WEBSITE

85 4-20 ma Vibration Sensing Transmitters Dimensional drawings on page ma, RMS Acceleration Sensing Transmitters High Range Low Frequency High Range Mid Frequency Series 646AX0 Series 646AX1 Series 646AX2 Dynamic Performance English SI English SI English SI High Range High Frequency Current Output 4-20 ma 4-20 ma 4-20 ma 4-20 ma 4-20 ma 4-20 ma Measurement Range 0 to 10 g rms 0 to 98.1 m/s 2 rms 0 to 10 g rms 0 to 98.1 m/s 2 rms 0 to 10 g rms 0 to 98.1 m/s 2 rms Resolution 0.05 g rms 0.5 m/s 2 rms 0.05 g rms 0.49 m/s 2 rms 0.05 g rms 0.49 m/s 2 rms Frequency Range (± 10%) 180 to 60k cpm 3 to 1000 Hz 180 to 300k cpm 3 to 5k Hz 180 to 600k cpm 3 to 10k Hz Amplitude Linearity ± 1% ± 1% ± 1% ± 1% ± 1% ± 1% Environmental Temperature Range -40 to +185 F -40 to +85 C -40 to +185 F -40 to +85 C -40 to +185 F -40 to +85 C Electrical Settling Time < 30 sec < 30 sec < 30 sec < 30 sec < 30 sec < 30 sec Supply Voltage Required 15 to 30 VDC 15 to 30 VDC 15 to 30 VDC 15 to 30 VDC 15 to 30 VDC 15 to 30 VDC Maximum Load Resistance 50 (Vs-15) ohm 50 (Vs-15) ohm 50 (Vs-15) ohm 50 (Vs-15) ohm 50 (Vs-15) ohm 50 (Vs-15) ohm Electrical Case Isolation > 10 8 ohm > 10 8 ohm > 10 8 ohm > 10 8 ohm > 10 8 ohm > 10 8 ohm Mechanical Size (hex height) 7/ in 7/8 in 63 mm 7/ in 7/8 in 63 mm 7/ in 7/8 in 63 mm Weight 3.17 oz 90 gm 3.17 oz 90 gm 3.17 oz 90 gm Mounting Thread 1/4-28 UNF-2B 1/4-28 UNF-2B 1/4-28 UNF-2B 1/4-28 UNF-2B 1/4-28 UNF-2B 1/4-28 UNF-2B Mounting Torque 2 to 5 ft-lb 2.7 to 6.8 N-m 2 to 5 ft-lb 2.7 to 6.8 N-m 2 to 5 ft-lb 2.7 to 6.8 N-m Sensing Element ceramic/shear ceramic/shear ceramic/shear ceramic/shear ceramic/shear ceramic/shear Case Material stainless steel stainless steel stainless steel stainless steel stainless steel stainless steel Sealing (welded) hermetic hermetic hermetic hermetic hermetic hermetic Electrical Connector, 2-pin (top) MIL-C-5015 MIL-C-5015 MIL-C-5015 MIL-C-5015 MIL-C-5015 MIL-C-5015 Supplied Accessories Mounting Stud Model 081A40 (1) Model 081A40 (1) Model 081A40 (1) Calibration (NIST traceable) 0, 10, 100, and 1000 Hz 0, 10, 100, 1000, and 5000 Hz 0, 10, 100, 1000, and 10k Hz Available Versions Two-pin, Threaded Military Connector 646A00 646A01 646A02 Integral, 10 ft (3 m) Polyurethane Cable 646A10 646A11 646A12 Integral, 10 ft (3 m) Steel-Armored Cable 646A60 646A61 646A62 Explosion Proof Condulet Enclosure EP646A00 EP646A01 EP646A02 Options (indicate using prefix letter shown) Metric Installation M* M* M* Raw Vibration Signal RV RV RV Intrinsically Safe CS, EX, FM CS, EX, FM CS, EX, FM NOTES: * Metric installation via supplied M081A61 stud, 1/4-28 to M6 1.0 Raw vibration signal option adds third connector pin or cable lead upon which a 100 mv/g analog acceleration signal is present for signal analysis purposes Models 645A00, 645A01, and 645A02 with 2-pin threaded military connector Models 646A10, 646A11, and 646A12 with integral, 10 ft (3 m) polyurethane cable Models 646A60, 646A61, and 646A62 with integral, 10 ft (3 m) steel-armored polyurethane cable Models EP646A00, EP646A01, adn EP646A02 with option EP explosion-proof condulet enclosure IMI SENSORS DIVISION TOLL-FREE

86 4-20 ma Vibration Sensing Transmitters Series 640AXX, 641AXX, 645AXX, 646AXX Dimensions shown are in inches (millimeters). Models 640A00, 640A01, 640A02 Models 641A00, 641A01, 641A02 Models 645A00, 645A01, 645A02 Models 646A00, 646A01, 646A02 with 2-pin threaded military connector Models 640A10, 640A11, 640A12 Models 641A10, 641A11, 641A12 Models 645A10, 645A11, 645A12 Models 646A10, 646A11, 646A12 with integral, 10 ft (3 m) polyurethane cable Models 640A60, 640A61, 640A62 Models 641A60, 641A61, 641A62 Models 645A60, 645A61, 645A62 Models 646A60, 646A61, 646A62 with integral, 10 ft (3 m) steel-armored, polyurethane cable Models EP640A60, EP640A61, EP640A62 Models EP641A60, EP641A61, EP641A62 Models EP645A60, EP645A61, EP645A62 Models EP646A60, EP646A61, EP646A62 with explosion proof condulet enclosure HOUR SENSORLINE SM WEBSITE

87 Switch Boxes, Interface Boxes, and Enclosures BNC Termination boxes Switch boxes Interface boxes Junction boxes BNC Termination Boxes, Switch Boxes, and Junction Boxes assist with data collection by terminating cables of permanently installed sensors at convenient, safe, data collection locations. Termination boxes and switch boxes do not contain power supplies, rather they rely on transferring excitation power provided by vibration data collectors or signal conditioners to connected sensors. Since excitation power is presented to each sensor when its measurement channel is selected, the sensor s settling time (or turn-on time) must be overcome prior to taking measurements. Alternatively, junction boxes incorporate a power supply and provide ICP sensor excitation to all connected sensors simultaneously, allowing faster data collection since the settling time of the sensor need not be overcome after channel selection. Interface Boxes aid in reducing cable costs by converting individual sensor wires to multi-conductor cables for longer distance cable runs. Interface Boxes are typically installed in-between accelerometers and Junction Boxes. The multiple output (MO) option available on some switch boxes and junction boxes allows direct access to all input channels simultaneously. This feature permits use with, or future upgrade to, continuous, on-line monitoring system multiplexors. Model 691B47 16-Channel Switch Box Interfaces permanently installed vibration sensors with data collection equipment. PCB IMI SM Sensors Division toll-free FAX imi@pcb.com Website 69

88 Small BNC Termination Boxes Series 691A51 Small BNC termination boxes offer a simple, economical, and safe method for accessing up to 4 sensors that are installed in remote locations. Each features a wall mountable, fiberglass, NEMA-4X (IP65) enclosure; an internal terminal strip for connection to pigtailed sensor cables; and externally mounted BNC jack connectors for interface to data collection equipment. BNC termination boxes do not supply sensor excitation power. Simply connect a data collector, with sensor excitation power, to the BNC jack of the sensor channel of interest to access that sensor's measurement signal. Series 691A51 Specifications Models Available in this Series Number of Channels Model 691A51/01 1 Model 691A51/02 2 Model 691A51/03 3 Model 691A51/04 4 Electrical English SI No Active Electrical Components No Power Required Mechanical Input Connector terminal strip terminal strip Output Connector(s) BNC jack BNC jack Input Cable Cord Grip(s) PGME7 PGME7 Enclosure Material fiberglass fiberglass Size (h x w x d) 2.95 x 5.27 x 2.16 in 75 x 134 x 55 mm Environmental Enclosure Environmental Rating NEMA 4X IP66 1/2 Actual Size Model 691A51/04 shown BNC Termination Box Dimensions shown are in inches (millimeters) HOUR SENSORLINE SM WEBSITE

89 BNC Termination Enclosures Series 691A50 BNC termination enclosures offer a simple, economical, and safe method for accessing up to 12 sensors that are installed in remote locations. Each features a wall mountable, fiberglass NEMA-4X (IP66) enclosure; an internal terminal strip for connection to pigtailed sensor cables; and internally mounted BNC jack connectors for interface to data collection equipment. BNC termination enclosures do not supply sensor excitation power. Simply open the enclosure door and connect a data collector, with sensor excitation power, to the BNC jack of the sensor channel of interest to access that sensor's measurement signal. Optional painted steel NEMA-12 (IP65) and stainless steel NEMA-4X (IP66) enclosures are also available. 1/4 Actual Size Model 691A50/12 shown BNC Termination Enclosure Dimensions shown are in inches (millimeters). Series 691A50 Specifications Models Available in this Series Number of Channels Model 691A50/01 1 Model 691A50/02 2 Model 691A50/03 3 Model 691A50/04 4 Model 691A50/05 5 Model 691A50/06 6 Model 691A50/07 7 Model 691A50/08 8 Model 691A50/09 9 Model 691A50/10 10 Model 691A50/11 11 Model 691A50/12 12 Electrical English SI No Active Electrical Components No Power Required Mechanical Input Connector terminal strip terminal strip Output Connector(s) BNC jack BNC jack Input Cable Cord Grip(s) PGME7 PGME7 Enclosure Material fiberglass fiberglass Size (h x w x d) 8 x 6 x 4 in 203 x 152 x 102 mm Weight 2.5 lb 1.14 kg Environmental Enclosure Environmental Rating NEMA 4X IP66 Supplied Accessories Mounting Hardware Kit Options (indicate using prefix letter shown) PS Painted Steel Enclosure Type Nema 12 IP65 Weight 5 lb 2.27 kg SS Stainless Steel Enclosure Type Nema 4x IP66 Weight 5.5 lb 2.5 kg NOTES: For PS and SS options, mounting hardware is not included. It is integral to the construction of the box. IMI SENSORS DIVISION TOLL-FREE

90 Switch Boxes Model 691B41 This six-channel switch box assists with route-based data collection by terminating the cables of permanently installed sensors at convenient, safe, data collection locations. The unit does not contain a power supply, rather it relies on transferring excitation power provided by the vibration data collector or signal conditioner to connected sensors. Since excitation power is presented to each sensor when its measurement channel is selected, the sensor s settling time (or turn-on time) must be overcome prior to taking measurements. The Model 691B41 is available with a variety of cord grip options. When cord grips are ordered, the enclosure will be provided with holes drilled for the appropriate cord grips. If no cord grips are ordered, the enclosure is provided without drilled holes. 1/4 Actual Size Model 691B41 Six-Channel Switch Box Electrical English SI Channels 6 6 Mechanical Input Connectors terminal strip terminal strip Output Connectors (vibration) BNC jack BNC jack Output Connectors (temperature) BNC jack BNC jack Enclosure Material fiberglass fiberglass Size (h x w x d) 8 x 6 x 4 in 203 x 152 x 102 mm Weight 5 lb 2.3 kg Environmental Enclosure Environmental Rating NEMA 4X IP66 Supplied Accessories Mounting Kit 4 Socket Plug ( ) Optional Accessories (order separately with model shown) Model individual cord grips, PGME07 Model individual cord grip, PGME29 Model individual cord grip, PGME13 Model conduit fitting, 1.5 in Options (indicate using prefix letter shown) PS Painted Steel Enclosure Type Nema 12 IP65 Weight 7 lb 3.2 kg SS Stainless Steel Enclosure Weight 8 lb 3.6 kg NOTES: For PS and SS options, mounting hardware is not included. It is integral to the construction of the box. Model 691B41 6-Channel Switch Box Dimensions shown are in inches (millimeters) HOUR SENSORLINE SM WEBSITE

91 Switch Boxes Model 691B42 This twelve-channel switch box assists with routebased data collection by the terminating cables of permanently installed sensors at convenient, safe, data collection locations. The unit does not contain a power supply, rather it relies on transferring excitation power provided by the vibration data collector or signal conditioner to connected sensors. Since excitation power is presented to each sensor when its measurement channel is selected, the sensor s settling time (or turn-on time) must be overcome prior to taking measurements. The Model 691B42 is available with a variety of cord grip options. When cord grips are ordered, the enclosure will be provided with holes drilled for the appropriate cord grips. If no cord grips are ordered, the enclosure is provided without drilled holes. 1/4 Actual Size Model 691B42 Twelve-Channel Switch Box Electrical English SI Channels Mechanical Input Connectors terminal strip terminal strip Output Connectors (vibration) BNC jack BNC jack Output Connectors (temperature) BNC jack BNC jack Enclosure Material fiberglass fiberglass Size (h x w x d) 8 x 6 x 4 in 203 x 152 x 102 mm Weight 5 lb 2.3 kg Environmental Enclosure Environmental Rating NEMA 4X IP66 Supplied Accessories Mounting Kit 4 Socket Plug ( ) Optional Accessories (order separately with model shown) Model individual cord grips, PGME07 Model individual cord grips, PGME29 Model individual cord grips, PGME13 Model individual cord grip, PGME36 Model individual cord grip, PGME21 Model conduit fitting, 1.5 in Model conduit fittings, 1.5 in Model individual cord grip, PGME29 Options (indicate using prefix letter shown) PS Painted Steel Enclosure Type Nema 12 IP65 Weight 7 lb 3.2 kg SS Stainless Steel Enclosure Weight 8 lb 3.6 kg NOTES: For PS and SS options, mounting hardware is not included. It is integral to the construction of the box. Model 691B42 12-Channel Switch Bzox Dimensions shown are in inches (millimeters). IMI SENSORS DIVISION TOLL-FREE

92 Switch Boxes Model 691B47 This sixteen-channel switch box assists with routebased data collection by terminating cables of permanently installed sensors at convenient, safe, data collection locations. The unit does not contain a power supply, rather it relies on transferring excitation power provided by the vibration data collector or signal conditioner to connected sensors. Since excitation power is presented to each sensor when its measurement channel is selected, the sensor s settling time (or turn-on time) must be overcome prior to taking measurements. The Model 691B47 is available with a variety of cord grip options. When cord grips are ordered, the enclosure will be provided with holes drilled for the appropriate cord grips. If no cord grips are ordered, the enclosure is provided without drilled holes. 1/5 Actual Size Model 691B47 Sixteen-Channel Switch Box Electrical English SI Channels Mechanical Input Connectors terminal strip terminal strip Output Connectors (vibration) BNC jack BNC jack Output Connectors multiple output multiple output Enclosure Material fiberglass fiberglass Size (h x w x d) 10 x 8 x 6 in 254 x 203 x 152 mm Weight 4.4 lb 2.0 kg Environmental Enclosure Environmental Rating NEMA 4X IP66 Supplied Accessories Mounting Kit 3 Socket Plug (2) Optional Accessories (order separately with model shown) Model individual cord grips, PGME07 Model individual cord grips, PGME29 Options (indicate using prefix letter shown) SS 304 Stainless Steel Enclosure Size (h x w x d) 10 x 8 x 4 in 254 x 203 x 102 mm Weight 8.4 lb 3.9 kg XSS 316L Stainless Steel Enclosure Size (h x w x d) 10 x 8 x 4 in 254 x 203 x 102 mm Weight 9.2 lb 4.2 kg NOTES: For PS and SS options, mounting hardware is not included. It is integral to the construction of the box. Model 691B47 16-Channel Switch Box Dimensions shown are in inches (millimeters) HOUR SENSORLINE SM WEBSITE

93 Switch Boxes Series 691B4X This series of switch boxes offers a simple, economical, and safe method for accessing up to 48 sensors that are installed in remote locations. The Model 691B40 switch box module (without enclosure) featured on this page, is available separately, for field expansion of the switch boxes, shown on the next 2 pages. Alternatively, any number of these modules may be installed in user supplied enclosures. Electrical Model 691B40 Switch Box Module EnglishSI Channels Mechanical Input Connectors terminal strip terminal strip Output Connectors (vibration) BNC jack BNC jack Output Connectors (temperature) BNC jack BNC jack Size (h x w x d) 7.3 x 5.5 x 3.3 in 186 x 140 x 54 mm Weight 1.7 lb 0.8 kg Each switch box features a wall mountable, fiberglass NEMA-4X (IP66) enclosure, internal terminal strip(s) for connection to pigtailed sensor cables, sensor location index chart, internal rotary selector switch(es), and internally mounted BNC jack connectors for interface to data collection equipment. These units do not contain power supplies, rather they rely on transferring excitation power provided by the vibration data collector or signal conditioner to connected sensors. Since excitation power is presented to each sensor when its measurement channel is selected, the sensor s settling time (or turn-on time) must be overcome prior to taking measurements. Model 691B46 48-Channel Switch Box with four Model 691B40 12-Channel Switch Box Modules installed in a fiberglass enclosure Optional painted steel NEMA-12 (IP65) and stainless steel NEMA-4X (IP66) enclosures are also available. 1/3 Actual Size Model 691B40 12-Channel Switch Box Module Dimensions shown are in inches (millimeters). IMI SENSORS DIVISION TOLL-FREE

94 Switch Boxes Model 691B43 Twelve-Channel Switch Box Electrical English SI Channels Mechanical Input Connectors terminal strip terminal strip Output Connectors (vibration) BNC jack BNC jack Output Connectors (temperature) BNC jack BNC jack Enclosure Material fiberglass fiberglass Size (h x w x d) 16 x 14 x 8 in 406 x 356 x 203 mm Weight 15 lb 6.8 kg Environmental Enclosure Environmental RatingNEMA 4X Supplied Accessories IP66 Mounting Kit Spare Terminal Strip Connector Plug (1) ( ) Optional Accessories (order separately with model shown) Model individual cord grips, PGME07 Model individual cord grips, PGME29 Model individual cord grips, PGME13 Model individual cord grip, PGME36 Model individual cord grip, PGME21 Model conduit ftting, 1.5 in Model conduit fittings, 1.5 in Options (indicate using prefix letter shown) PSS Painted Steel Enclosure Type Nema 12 IP65 Size (h x w x d) 16 x 14 x 6 in 406 x 356 x 152 mm Weight 26 lb 11.8 kg SSS Stainless Steel Enclosure Size (h x w x d) 16 x 14 x 6 in 406 x 356 x 152 mm Weight 24 lb 10.9 kg Expandability Expands to 24, 36, or 48 channels with additional Model 691B40 modules. NOTES: For PS and SS options, mounting hardware is not included. It is integral to the construction of the box. Model 691B44 Twenty-four Channel Switch Box Electrical English SI Channels Mechanical Input Connectors terminal strip terminal strip Output Connectors (vibration) BNC jack BNC jack Output Connectors (temperature) BNC jack BNC jack Enclosure Material fiberglass fiberglass Size (h x w x d) 16 x 14 x 8 in 406 x 356 x 203 mm Weight 16 lb 7.3 kg Environmental Enclosure Environmental RatingNEMA 4X Supplied Accessories IP66 Mounting Kit Spare Terminal Strip Connector Plugs (2) ( ) Optional Accessories (order separately with model shown) Model individual cord grips, PGME07 Model individual cord grips, PGME29 Model individual cord grips, PGME13 Model individual cord grips, PGME36 Model individual cord grips, PGME21 Model conduit fittings, 1.5 in Model conduit fittings, 1.5 in Model conduit fitting, 1.5 in Options (indicate using prefix letter shown) PSS Painted Steel Enclosure Type Nema 12 IP65 Size (h x w x d) 16 x 14 x 6 in 406 x 356 x 152 mm Weight 27 lb 12.3 kg SSS Stainless Steel Enclosure Size (h x w x d) 16 x 14 x 6 in 406 x 356 x 152 mm Weight 25 lb 11.4 kg Expandability Expands to 36 or 48 channels with additional Model 691B40 modules. NOTES: For PS and SS options, mounting hardware is not included. It is integral to the construction of the box. Model 691B43 12-Channel Switch Box Dimensions shown are in inches (millimeters). Model 691B44 24-Channel Switch Box HOUR SENSORLINE SM WEBSITE

95 Switch Boxes Model 691B45 Thirty-six Channel Switch Box Electrical English SI Channels Mechanical Input Connectors terminal strip terminal strip Output Connectors (vibration) BNC jack BNC jack Output Connectors (temperature) BNC jack BNC jack Enclosure Material fiberglass fiberglass Enclosure Material fiberglass fiberglass Size (h x w x d) 16 x 14 x 8 in 406 x 356 x 203 mm Weight 17 lb 7.7 kg Environmental Enclosure Environmental RatingNEMA 4X Supplied Accessories IP66 Mounting Kit Spare Terminal Strip Connector Plugs (3) ( ) Optional Accessories (order separately with model shown) Model individual cord grips, PGME07 Model individual cord grips, PGME29 Model individual cord grips, PGME13 Model individual cord grips, PGME36 Model individual cord grips, PGME21 Model conduit fittings, 1.5 in Model conduit fittings, 1.5 in Options (indicate using prefix letter shown) PSS Painted Steel Enclosure Type Nema 12 IP65 Size (h x w x d) 16 x 14 x 6 in 406 x 356 x 152 mm Weight 28 lb 12.7 kg SSS Stainless Steel Enclosure Size (h x w x d) 16 x 14 x 6 in 406 x 356 x 152 mm Weight 26 lb 11.8 kg Expandability Expands to 48 channels with an additional Model 691B40 module NOTES: For PS and SS options, mounting hardware is not included. It is integral to the construction of the box. Model 691B46 Forty-eight Channel Switch Box Electrical English SI Channels Mechanical Input Connectors terminal strip terminal strip Output Connectors (vibration) BNC jack BNC jack Output Connectors (temperature) BNC jack BNC jack Enclosure Material fiberglass fiberglass Enclosure Material fiberglass fiberglass Size (h x w x d) 16 x 14 x 8 in 406 x 356 x 203 mm Weight 18 lb 8.2 kg Environmental Enclosure Environmental RatingNEMA 4X Supplied Accessories IP66 Mounting Kit Spare Terminal Strip Connector Plugs (4) ( ) Optional Accessories (order separately with model shown) Model individual cord grips, PGME07 Model individual cord grips, PGME29 Model individual cord grips, PGME13 Model individual cord grips, PGME36 Model individual cord grips, PGME21 Model conduit fittings, 1.5 in Model conduit fittings, 1.5 in Options (indicate using prefix letter shown) PSS Painted Steel Enclosure Type Nema 12 IP65 Size (h x w x d) 16 x 14 x 6 in 406 x 356 x 152 mm Weight 29 lb 13.2 kg SSS Stainless Steel Enclosure Size (h x w x d) 16 x 14 x 6 in 406 x 356 x 152 Weight 27 lb 12.3 kg NOTES: For PS and SS options, mounting hardware is not included. It is integral to the construction of the box. Model 691B45 36-Channel Switch Box Dimensions shown are in inches (millimeters). Model 691B46 48-Channel Switch Box IMI SENSORS DIVISION TOLL-FREE

96 Interface Boxes Models 691B33 and 691B35 Interface boxes serve as a patch panel to collect wires from up to 12 individual sensors and combine them into one, multi-conductor cable for routing over long distances to the central data collection point. This in turn reduces over-all cable costs and provides a cleaner, neater single-cable run, rather than a bundle of individual cables. Each features a wall mountable, fiberglass NEMA-4X (IP66) enclosure, internal terminal strip for connection to pigtailed sensor cables, sensor location index chart and conduit fittings for cable entry and exit. Interface boxes do not supply sensor excitation power and are not intended as a data collection point. They are intended to be installed nearby the sensors with their long output cable terminating at the remote data collection point. Optional painted steel NEMA-12 (IP65) and stainless steel NEMA-4X (IP66) enclosures are also available. 1/5 Actual Size Model 691B35 Twelve-Channel Interface Box Electrical English SI Channels Mechanical Input Connectors terminal strip terminal strip Output Connectors terminal strip terminal strip Enclosure Material fiberglass fiberglass Size (h x w x d) 8 x 6 x 4 in 203 x 152 x 102 mm Weight 4.7 lb 2.1 kg Environmental Enclosure Environmental Rating NEMA 4X IP66 Supplied Accessories Mounting Kit Optional Accessories (order separately with model shown) Model PGME07 cord grips, 1 PGME29 cord grip Model PGME21 cord grip, 1 PGME29 cord grip Model PGME36 cord grip, 1 PGME29 cord grip Model conduit fittings in Model PGME07 cord grips, 1 PGME29 cord grip Model PGME07 cord grips, 1 conduit fitting in Model PGME21 cord grip Alternate Versions Model 691B33 Adds quick-disconnect, 28-pin output connector Options (indicate using prefix letter shown) PS Painted Steel Enclosure Type Nema 12 IP65 Weight 6.7 lb 3.0 kg SS Stainless Steel Enclosure Weight 7.6 lb 3.5 kg NOTES: For PS and SS options, mounting hardware is not included. It is integral to the construction of the box. Model 691B35 shown 12-Channel Interface Box Dimensions shown are in inches (millimeters). Model 691B33 drawn to show quick-disconnect 28-pin output connector HOUR SENSORLINE SM WEBSITE

97 Interface Boxes A typical cable management system utilizing interface boxes, multi-conductor extension cables, and a junction box IMI SENSORS DIVISION TOLL-FREE

98 Junction Boxes Series 691A2X Junction boxes offer a simple, economical, and safe centralized collection point for accessing up to 48 ICP sensors that are installed in remote locations. Each features a wall mountable, painted steel, NEMA-4 (IP55) enclosure, internal terminal strip(s) for connection to pigtailed sensor cables, sensor location index chart, internal bank and individual channel rotary selector switches, and internally mounted BNC jack connectors for interface to data collection equipment. Junction boxes supply ICP sensor excitation power simultaneously to all input channels. Simply open the enclosure door, connect any data collector to the output BNC jack, switch select the bank of sensor channels of interest, and position the sensor selector switch in the appropriate position to access individual sensor measurement signals. By simultaneously powering all input sensor channels, data collection is expedited since the wait for individual sensor turn-on is eliminated. Junction boxes require either 115 VAC or 18 to 28 VDC input power. 220 VAC input power is optional. 1/7 Actual Size Model 691A26 shown 48-Channel Junction Box Dimensions shown are in inches (millimeters) HOUR SENSORLINE SM WEBSITE

99 Junction Boxes Models Available in this Series Series 691A2X Junction Box Model Number 691A23 691A24 691A25 691A26 Channels Electrical Tachometer channels 6 Supply Voltage (± 1 VDC) 24 VDC Excitation Current (± 0.6 ma) 4 ma Noise (AC Power): Broadband Electrical Noise (1-10 khz) 320 µv Spectral Noise: 1 Hz 500 nv/ Hz 10 Hz 120 nv/ Hz 100 Hz 100 nv/ Hz 1 khz 160 nv/ Hz 10 khz 230 nv/ Hz Noise (DC Power): Broadband Electrical Noise (1-10 khz) 3.2 µv Spectral Noise: 1 Hz 320 nv/ Hz 10 Hz 90 nv/ Hz 100 Hz 60 nv/ Hz 1 khz 40 nv/ Hz 10 khz 30 nv/ Hz Frequency Response (± 3 db) 10-6,000,000 cpm ( K Hz) Data Logger: Voltage VDC Current 2-20 ma Power Requirements (AC or DC power required, not both) AC Input (50 to 400 Hz): Voltage 115 VAC115 VAC115 VAC115 VAC Current 30 ma 60 ma 90 ma 120 ma DC Input: Voltage VDC18-28 VDC18-28 VDC18-28 VDC Current 70 ma 140 ma 210 ma 280 ma Mechanical Input Connectors terminal strip Analog Signal Connectors BNC jack Data Logger Connectors BNC jack Tachometer Input Connectors terminal strip VAC Power Input Connectors terminal strip VDC Power Input Connector switchcraft #722 Enclosure Material painted steel Size (h x w x d) 15 x 15 x 8.5 in (381 x 381 x 216 mm) Weight 26 lb (11.8 kg) 27 lb (12.3 kg) 28 lb (12.7 kg) 29 lb ((13.2 kg) Environmental Enclosure Environmental Rating NEMA 4 (IP55) Supplied Accessories Hardware Accessory Kit Options (indicate using prefix letter shown) F VACpower IMI SENSORS DIVISION TOLL-FREE

100 IMI Sensors Manufacturing Capabilities IMI s machining capabilities allow full control of the production of precision parts to insure quality and timely delivery. Capabilities including dual spindle CNC lathes, wire EDM machines, and injection molding machines fabricate in excess of 100,000 parts per month to exacting standards. IMI industrial sensors are meticulously assembled by skilled technicians. IMI industrial sensors are laser welded to provide a hermetic seal, enabling use in harsh factory installations HOUR SENSORLINE SM WEBSITE

101 Intrinsic Safety Barriers Intrinsic safety barrier modules Safety barrier enclosures Sensor entity parameters Intrinsic Safety Barriers reduce the risks associated with sensor operation in hazardous, combustible environments and are required accessories for completing an intrinsically safe installation of sensors that carry FM, CSA, MS, MX, and EX approvals for use in such areas. Intrinsic Safety Barriers, also called Zener barriers or I.S. barriers, utilize Zener diodes to limit the amount of electrical energy that can be present at the sensor, in the event of a short circuit in the sensor cable, or other malfunction with the sensor itself. The purpose is to eliminate the risk of an electrical arc, or spark, at the hazardous location and avoid potential combustion of hazardous materials that may be present in the environment. Intrinsic safety barriers must be properly matched to the entity parameters of the equipment to be safeguarded and they must be installed in a safe area, outside of the hazardous environment. Two styles of I.S. barriers are currently offered. Series 691A6X are designed for use with ICP sensors whereas the Series 691A7X are for use with loop powered, 4-20 ma sensors. Each I.S. barrier is intended to be installed, in the safe area, in-between the sensor and the device providing sensor excitation power. Model 691A61/12 Safety Barrier Enclosure Contains twelve intrinsic safety barriers, for sensors approved for use in hazardous environments. PCB IMI SM Sensors Division toll-free FAX imi@pcb.com Website 83

102 Intrinsic Safety Barriers Series 691A6X IMI offers the Model 691A60 single-channel, DIN rail mountable, I.S. barrier module that is required for use with IMI s hazardous area approved, ICP vibration sensors. In addition, this series offers two NEMA-4X enclosures featuring the Model 691A61 that accommodates up to 12 of the Model 691A60 modules and the Model 691A62 that accommodates up to 24 of the Model 691A60 modules. Both models are available with as many modules installed as desired. Series 691A7X IMI offers the Model 691A70 single-channel, DIN rail mountable, I.S. barrier module that is required for use with IMI s hazardous area approved, 4-20 ma vibration sensors. In addition, this series offers two NEMA-4X enclosures featuring the Model 691A71 that accommodates up to 12 of the Model 691A70 modules and the Model 691A72 that accommodates up to 24 of the Model 691A70 modules. Both models are available with as many modules installed as desired. Models 691A60 and 691A70 Intrinsic Safety Barrier Modules Electrical English SI Channels 1 1 Barrier Maximum Voltage 28 V 28 V Barrier Resistance 300 ohm 300 ohm Barrier Maximum Current 93 ma 93 ma Mechanical Connectors terminal strip terminal strip Mounting DIN rail DIN rail Size (h x w x d) 4 x 3.9 x 0.28 in 101 x 99 x 7 mm Wiring Code 691A60 691A70 Terminal 1 (signal conditioner side) positive positive Terminal 2 (signal conditioner side) negative signal Terminal 3 (signal conditioner side) shield negative Terminal 4 (sensor side) positive negative Terminal 5 (sensor side) negative positive Terminal 6 (sensor side) shield signal 2/3 Actual Size Models 691A60 and 691A70 Single-channel Intrinsic Safety Barrier Modules Dimensions shown are in inches (millimeters) HOUR SENSORLINE SM WEBSITE

103 Intrinsic Safety Barriers Series 691A61/XX and Series 691A71/XX Safety Barrier Enclosure Environmental English SI Enclosure Rating Nema 4X IP65 Mechanical Maximum Barrier Capacity Enclosure Material Glass reinforced polyester with high-strength, polycarbonate cover Size (h x w x d) 7 x 7 x 6 in 3.2 x 3.2 x 2.8 mm Weight (at full capacity) 4.4 lb 2 kg Mounting wall or surface Available Models Enclosures Only 691A61, 691A71 Enclosure with Installed Safety Barrier(s) 691A61/XX*, 691A71/XX* NOTES: * Designate desired number of installed safety barriers in place of XX, up to a maximum of 12 barriers, e.g., 691A61/08 includes 8 Model 691A60 barriers, 691A71/10 includes 10 Model 691A70 barriers. Series 691A62/XX and Series 691A72/XX Safety Barrier Enclosure Environmental English SI Enclosure Rating Nema 4X IP65 Mechanical Maximum Barrier Capacity Enclosure Material Glass reinforced polyester with high-strength, polycarbonate cover Size (h x w x d) 12.2 x 7.9 x 6.8 in 310 x 201 x 173 mm Weight (at full capacity) 9.5 lb 4 kg Mounting wall or surface Available Models Enclosures Only 691A62, 691A72 Enclosure with Installed Safety Barrier(s) 691A62/XX*, 691A72/XX* NOTES: * Designate desired number of installed safety barriers in place of XX, up to a maximum of 24 barriers, e.g., 691A62/16 includes 16 Model 691A60 barriers, 691A72/20 includes 20 Model 691A70 barriers. 1/4 Actual Size Series 691A61/XX and 691A71/XX Safety barrier enclosures for up to 12 barriers Dimensions shown are in inches (millimeters). 1/4 Actual Size Series 691A62/XX and 691A72/XX Safety barrier enclosures for up to 24 barriers Dimensions shown are in inches (millimeters). IMI SENSORS DIVISION TOLL-FREE

104 Intrinsic Safety Barriers A typical intrinsically safe installation Entity Parameters for Factory Mutual System and Canadian Standards Agency Approved Sensors FM Model CSA Model DescriptionVmax Ci lmax Li FM622A01 CS622A01 ceramic shear, 2-pin military-style connector 30 V 1.2 nf 200 ma 0 µh FM622A11 CS622A11 ceramic shear, integral cable 30 V 26.2 nf 200 ma 151µH FM622A31 CS622A31 ceramic shear, 3-pin military-style connector 30 V 1.2 nf 200 ma 0 µh FMVO622A01 CSVO622A01 ceramic shear, 2-pin military-style connector 30 V 1.2 nf 200 ma 0 µh FMVO622A11 CSVO622A11 ceramic shear, integral cable 30 V 26.2 nf 200 ma 151µH FMVO622A31 CSVO622A31 ceramic shear, 3-pin military-style connector 30 V 1.2 nf 200 ma 0 µh FM623C00 CS623C00 ceramic shear, 2-pin military-style connector 30 V 1.2 nf 200 ma 0 µh FM623C01 CS623C01 ceramic shear, 2-pin military-style connector 30 V 1.2 nf 200 ma 0 µh FM628F01 CS628F01 quartz shear, 2-pin military-style connector 30 V 1.2 nf 200 ma 0 µh FM628F11 CS628F11 quartz shear, integral cable 30 V 26.2 nf 200 ma 151 µh FM628F31 CS628F31 quartz shear, 3-pin military style connector 30 V 1.2 nf 200 ma 0 µh Entity Parameters for CENELEC Approved Sensors EX Model DescriptionVmax Ci lmax Li EX622A01 ceramic shear, 2-pin military-style connector 28 V 2.2 nf 200 ma 0 µh EX622A11 ceramic shear, integral cable 28 V 27.2 nf 200 ma 151µH EX622A31 ceramic shear, 3-pin military-style connector 28 V 2.2 nf 200 ma 0 µh EXVO622A01 ceramic shear, 2-pin military-style connector 28 V 2.2 nf 200 ma 0 µh EXVO622A11 ceramic shear, integral cable 28 V 27.2 nf 200 ma 151 µh EXVO622A31 ceramic shear, 3-pin military-style connector 28 V 2.2 nf 200 ma 0 µh EX623C00 ceramic shear, 2-pin military-style connector 28 V 1.2 nf 93 ma 0 µh EX623C01 ceramic shear, 2-pin military-style connector 28 V 1.2 nf 93 ma 0 µh EX628F01 quartz shear, 2-pin military-style connector 28 V 1.2 nf 93 ma 0 µh EX628F11 quartz shear, integral cable 28 V 26.2 nf 93 ma 151µH EX628F31 quartz shear, 3-pin military-style connector 28 V 1.2 nf 93 ma 0 µh MX622A01 ceramic shear, 2-pin military-style connector 30 V 2.3 nf 200 ma 0 mh MX622A11 ceramic shear, integral cable 30 V 27.3 nf 200 ma 0.15 mh MXVO622A01 ceramic shear, 2-pin military-style connector 30 V 53 nf 200 ma 0 µh MXVO622A11 ceramic shear, integral cable 30 V 78 nf 200 ma 0.15 mh Entity Parameters for Mine Safety Administration Approved Sensors (1) MS Model DescriptionVmax Ci lmax Li MS622A01 ceramic shear, 2-pin military-style connector 30 V 1.2 nf 100 ma 0 µh MS622A11 ceramic shear, integral cable 30 V 26.2 nf 100 ma 151µH MS622A31 ceramic shear, 3-pin military-style connector 30 V 1.2 nf 100 ma 0 µh NOTES: 1. Entity parameters are based upon Mine Safety Class K criteria HOUR SENSORLINE SM WEBSITE

105 Signal Conditioners 4-20 ma vibration transmitters DIN rail signal conditioners Alarm modules Battery-powered signal conditioners Line-powered signal conditioners Modular signal conditioners Multi-channel signal conditioners Signal conditioners serve to provide vibration sensor excitation power and prepare measurement signals for readout, recording or analysis purposes. Although many vibration data collectors and FFT analyzers incorporate built-in excitation power for ICP sensors, some data loggers, recorders, and computer based data acquisition systems will require that a separate excitation source be used. IMI offers a full complement of signal conditioning equipment for both the laboratory and industrial setting. Included are battery powered, line powered and multi-channel signal conditioners with a host of features such as gain, filtering, and computer control. In addition, vibration transmitters serve to interface ICP sensors with process PLC, DCS, SCADA, and alarm systems. Finally, a selection of vibration monitors satisfy most basic measurement and display requirements. Sensor simulators Vibration meters and monitors Model 689B01 Vibration Transmitter Interfaces ICP sensors with process PLC, DCS, SCADA, and alarm systems. PCB IMI SM Sensors Division toll-free FAX imi@pcb.com Website 87

106 4-20 ma Vibration Transmitters 4-20 ma Vibration Transmitters 4-20 ma vibration transmitters serve to interface ICP accelerometers with process PLC, DCS, SCADA, and alarm systems. These transmitters convert the accelerometer s analog voltage signal into a 4-20 ma current signal that is proportional to the peak velocity of the vibration. By monitoring the 4-20 ma signals that represent overall machinery vibration levels, users may be warned of excessive vibration situations and then conduct further detailed analysis as required. Time and money is saved by analyzing only the machinery that has given an indication of a problem. Implementing a rotating machinery vibration monitoring program by utilizing existing plant process control and monitoring equipment represents a low cost alternative to a dedicated on-line vibration monitoring and analysis system. The approach also provides the satisfaction of continuous monitoring when compared with periodic route-based data collection. IMI s surface mount, 4-20 ma vibration transmitters provide excitation power and accept input signals from conventional ICP accelerometers. The input acceleration signal is conditioned into a 4-20 ma output signal that is representative of the peak velocity of the vibration. In addition to this 4-20 ma peak velocity output, an analog acceleration output signal is provided for data collection, signal analysis, and diagnostics. These DC powered transmitters are also available installed into protective enclosures, one of which includes an AC power supply. Model 689B01 Vibration Transmitter Accepts input from ICP accelerometers Integrates acceleration signals and provides a 4-20 ma output signal proportional to peak velocity of vibration Provides access to analog acceleration signal for data collection, analysis and diagnostics VDC powered Surface mount aluminum enclosure Model 689B01 Specifications Electrical English SI Number of Channels 1 1 Output Vibration Range 0-0.1/Sens in/sec pk /Sens mm/sec pk Current Output 4-20 ma 4-20 ma Frequency Response (± 3 db) k cpm 5-10k Hz Maximum Load Resistance 700 ohm 700 ohm Voltage Power Required 20 to 30 VDC / 60 ma 20 to 30 VDC / 60 ma Excitation Power to Sensor 18 VDC / 4 ma 18 VDC / 4 ma Sensor Fault < 1 ma < 1 ma Environmental Temperature Range -40 to +150 F -40 to +66 C Mechanical Input Connector screw terminal screw terminal Power Connector screw terminal screw terminal Pk Velocity Output (4-20 ma) screw terminal screw terminal Acceleration Output (analog) screw terminal screw terminal Acceleration Output (analog) BNC jack BNC jack Size (h x w x d) 5.25 x 2.65 x 1.70 in 133 x 67 x 43 mm Enclosure Material die cast aluminum die cast aluminum Enclosure Finish baked blue enamel baked blue enamel Optional Accessories Model 080A135 DIN rail mounting adaptor NOTES: Sens in output vibration range formula denotes the sensitivity of the input accelerometer in V/g. Model 689B ma Vibration Transmitter HOUR SENSORLINE SM WEBSITE

107 4-20 ma Vibration Transmitters Series 689B11 Vibration Transmitter Enclosure Accommodates up to two Model 689B01 transmitters in a fiberglass, NEMA 4X enclosure VDC powered Available Models Series 689B11 Specifications 1 Channel Enclosure Model 689B11/01 2 Channel Enclosure Model 689B11/02 Environmental English SI Power Required 20 to 30 VDC / 60 ma 20 to 30 VDC / 60 ma Temperature Range -40 to +150 F -40 to +66 C Enclosure Rating NEMA 4X IP66 Mechanical Size (h x w x d) 8 x 6 x 4 in 203 x 152 x 102 mm Weight (689B11/01) 2.3 lb 1 kg Weight (689B01/02) 3 lb 1.4 kg Enclosure Material fiberglass fiberglass Model 689B11/ ma Vibration Transmitter Enclosure Series 689B21 Vibration Transmitter Enclosure Accommodates up to six Model 689B01 transmitters in a fiberglass, NEMA 4 enclosure VAC powered Available Models Series 689B21 Specifications 1 Channel Enclosure Model 689B21/01 2 Channel Enclosure Model 689B21/02 3 Channel Enclosure Model 689B21/03 4 Channel Enclosure Model 689B21/04 5 Channel Enclosure Model 689B21/05 6 Channel Enclosure Model 689B21/06 Environmental English SI Power Required 105 to 125 VAC 105 to 125 VAC Temperature Range -40 to +150 F -40 to +66 C Enclosure Rating NEMA 4 IP55 Mechanical Size (h x w x d) 15 x 15 x 8.5 in 381 x 381 x 216 mm Weight (0.67 channels) lb (0.3 channels) kg Enclosure Material painted steel painted steel Model 689B21/ ma Vibration Transmitter Enclosure IMI SENSORS DIVISION TOLL-FREE

108 Handheld Vibration Meter Kit The Model 687A01 Vibration Meter Kit puts predictive maintenance into the hands of machinery operators. Simple enough to use with minimal training, it conveniently measures the vibration levels of bearings, gears, and spindles for predictive maintenance requirements. The kit is supplied with headphones for audible monitoring, an industrial accelerometer, a cable assembly, and a highstrength mounting magnet. The portable, lightweight, battery-powered meter provides both overall acceleration and velocity measurements. Ideal for measuring the vibration severity of fans, motors, and pumps, it also verifies the DC bias voltage of industrial accelerometers for troubleshooting permanently installed sensors and cables. Model 687A01 Handheld Vibration Meter Kit Provides portable velocity and acceleration measurements Complies with ISO 2954 and ISO standards Measures the vibration severity of fans, motors, and pumps Verifies bias voltage of industrial accelerometers for troubleshooting permanently installed sensors and cables Model 687A01 Handheld Vibration Meter Kit Model 687A01 Handheld Vibration Meter Kit Electrical English SI Excitation Voltage (± 1 VDC) 24 VDC 24 VDC Excitation Current (± 0.6 ma) 2 ma 2 ma Frequency Response: Velocity (+ 10%, - 20%) ,000 cpm Hz Acceleration (± 3dB) 3,000-3,000,000 cpm 50-50k Hz Acceleration Range grms metric units unavailable Velocity Range in/sec rms metric units unavailable DC Bias Range VDC VDC Accelerometer Sensitivity (± 20%) 100 mv/g 100 mv/g Meter Resolution ± 2 counts ± 2 counts Accuracy ± 3% ± 3% Battery Life (alkaline) 10 hours 10 hours Battery Life (rechargeable) 3 hours 3 hours Environmental Temperature Range: Accelerometer -65 to +250 F -54 to +121 C Meter +32 to +122 F 0 to +50 C Mechanical Complete Kit: Size (l x w x h) in mm Weight 3.90 lb 1.77 kg Sensor: Size (hex x height) 7/8 x 1.9 in 7/8 in x 48.3 mm Weight 2.8 oz 80 gm Mounting Thread (female) 1/4-28 UNF 1/4-28 UNF Meter: Size (l x w x h) 5.9 x 3.15 x 1.2 in 150 x 80 x 30 mm Weight (with battery) 0.57 lb 258 gm Input Connector BNC jack BNC jack Headphone Connector 1/8" stereo jack 1/8" stereo jack Supplied Components Model 687A02 Meter Model 601A01 Sensor Model 050BQ006AC Cable Model 070A47 Headphones Model 080A155 Magnet Options Model R687A01 Rechargeable Version: includes Model 073M12 External Charger and Model 073A09 Ni-Cad battery replaces alkaline battery HOUR SENSORLINE SM WEBSITE

109 Vibration Meters and Monitors True G rms Vibration Monitor Model 487B07 provides ICP sensor excitation and accepts input from either a 10 or 100 mv/g accelerometer. Overall vibration levels within a frequency range of 2 to 10k Hz are displayed on an analog meter whose full scale range is adjustable to 1, 4, 10, or 40 g rms. High and low set points activate rear panel relays to Model 487B07 indicate an alarm condition. An analog output for waveform analysis and a DC output for recording are included. 105 to 125 VAC, 50 to 400 Hz powered. Portable G rms Vibration Meter Model 487C08 provides ICP sensor excitation and accepts input from a 100 mv/g accelerometer. Overall vibration levels within a frequency range of 5 to 10k Hz are displayed on an analog meter whose full scale range is adjustable to 0.25, 2.5, or 25 g rms. An analog output for waveform analysis is included. Battery powered by two standard 9 volt batteries. Ni-cad batteries with recharger option and kit configuration including accelerometer and mounting accessories are also available. Model 487C08 Universal Integrating Vibration Monitor Model 487A12 provides ICP sensor excitation and accepts input from any accelerometer having a sensitivity between 10 and 1000 mv/g. Overall vibration levels to 10k Hz are displayed on an LCD meter. Units displayed are selectable among g rms, g peak, in/sec pk, and mils pk-pk. Additional features include an Model 487A12 analog signal output for waveform analysis, a DC output for recording, self calibration, auto-ranging, overload indication, and low range mode. 105 to 125 VAC, 50 to 60 Hz powered. Current Output Vibration Monitor Model 487A13 provides ICP sensor excitation and accepts input from either a 10 or 100 mv/g accelerometer. Overall vibration levels within a frequency range of 2 to 10k Hz are displayed on an analog meter whose full scale range is adjustable to 1, 4, 10, or 40 g rms. A high set point activates a rear panel relay to indicate an alarm condition. A 4 to 20 ma current output proportional to g rms adapts to process control instrumentation, PLC s and recorders. An analog output for waveform analysis and a DC output are included. 105 to 125 VAC, 50 to 400 Hz powered. Model 487A13 Two-Channel Vibration Monitor Model 487A14 provides ICP sensor excitation and accepts two inputs from either 10 or 100 mv/g accelerometers. Overall vibration levels within a frequency range of 2 to 5600 Hz (-3 db) and amplitudes to 20 g rms are displayed on dual LCD meters in selectable units of g rms or g peak. A high set point activates a rear panel relay to alarm of upset conditions. Analog outputs for waveform analysis and a DC output for recording are included for each channel. 120 VAC, 50 to 60 Hz powered. Model 487A14 Vibration and Frequency Monitor Model 487B10 provides ICP sensor excitation and accepts input from either a 10 or 100 mv/g accelerometer. Overall vibration levels to 40 g and predominant frequency values within a frequency range of 4 to 2000 Hz are displayed on independent LCD meters. High and low set points activate rear panel relays to alarm of upset conditions. Additional features include alarm LED s, a 100 Hz engageable low pass filter, an analog output for waveform analysis, and a DC output for recording. 115 VAC, 60 Hz powered. Model 487B10 IMI SENSORS DIVISION TOLL-FREE

110 DIN Rail Signal Conditioners Model 682A01-24 VDC Power Supply 120 to 230 VAC powered DIN rail mount 3.75 kv isolation 650 ma maximum 4.5 in (h) 0.88 in (w) 3.89 in (d) (114.3 mm 22.4 mm 98.8 mm) Model 682A02 - ICP Sensor Signal Conditioner Provides constant current ICP sensor excitation Provides gain 1, 10, VDC powered DIN rail mount 3.3 in (h) 0.97 in (w) 3.1 in (d) (83.8 mm 24.6 mm 78.7 mm) Model 682A03 - ICP Sensor to 4-20 ma Transmitter Provides constant current ICP sensor excitation Adjustable low-pass and high-pass filtering Peak or rms proportional output Selectable acceleration, velocity, or displacement output signal 24 VDC powered DIN rail mount 4-20 ma output proportional to temperature TO sensor option input 3.9 in (h) 0.87 in (w) 4.89 in (d) (99.0 mm 22.0 mm mm) HOUR SENSORLINE SM WEBSITE

111 Alarm Modules Model 682A04 - Relay Alarm Module Accepts 4-20 ma signal input Provides two, 5 A, Form C alarm relays with selectable 30 second time delay DIN rail mount 4.5 in (h) 0.88 in (w) 3.89 in (d) (114.3 mm 22.4 mm 98.8 mm) Series 683A - Indicator / Alarm Provides 24 VDC excitation for 4-20 ma sensors Highly visible, fully scalable LED display Up to four, programmable, set point relays Time delay eliminates false alarm trips 1/8 DIN panel mounting User-friendly, menu-driven, set up 1.89 in (h) 3.93 in (w) 5.27 in (d) (48 mm 99.9 mm mm) Base Model 683A Indicator / alarm with two, time-delayed, Form A, set-point relays Input ma DC with 24 VDC excitation delivered to sensor / transmitter Power Required 0 85 to 265 VAC or 95 to 370 VDC 1 18 to 48 VAC or 10 to 72 VDC Analog Output 0 None 1 Isolated 16 bit user scalable 4-20 ma retransmit Additional Relay Outputs 0 None 1 Dual 10 Amp Form C relays (not time-delayed) 2Dual 5 Amp Form A relays (not time-delayed) Accessories 00 None 01 NEMA 4X, clear, lockable, splash-proof front cover 02Metal surround case - includes screw mounting clips 03 NEMA 4X, clear front cover and metal surround case Example 683A Standard indicator / alarm with NEMA 4X front cover IMI SENSORS DIVISION TOLL-FREE

112 Battery-Powered Signal Conditioners for ICP Sensors Battery-Powered, ICP Sensor Signal Conditioners Battery-powered signal conditioners offer portable, convenient methods for powering ICP sensors and conditioning their output signals for transmittal to readout and recording instruments. Most units operate, and are supplied, with standard 9 volt alkaline batteries. Each features a color-coded, input circuit checkout meter to alert of proper sensor turn-on or input fault due to open or short circuit connectors. Rechargeable versions are equipped with Ni-Cad batteries and supplied with an AC powered recharger unit. Model 480C02 Unity gain, low noise, high frequency Model 480E09 Gain x1, x10, x100 Model 480B10 Integrating: acceleration, velocity, displacement Model 480B21 3 channel, triaxial, gain x1, x10, x100 Model 488A02 Battery charger Model 488A03 AC power supply Battery-Powered Signal Conditioners MODEL NUMBERS 480C02 480E09 480B10 480B21 Style basic gain integrating triaxial accel, vel., displ. with gain Channels 1 channel 1 channel 1 channel 3 channels Sensor Excitation 27 volt, 2 ma 27 volt, 2 ma 18 volt, 2 ma volt, 3 ma Gain unity x1, x10, x100 unity x1, x10, x100 Low Frequency Response (- 5%) (1) 0.05 Hz 0.15 Hz 0.07 (a), 8 (v), 15 (d) 0.15 Hz High Frequency Response (- 5%) Hz Hz 100 (a), 10(v), 1 (d) khz Hz Broadband Noise (at unity gain) 360 nv rms 360 nv rms N/A 3.54 µv rms Battery (qty) Type (3) 9 V (3) 9 V (2) 9 V (3) 9 V Average Battery Life 100 hour 40 hour 30 hour 32 hour Input/Output Connectors BNC/BNC BNC/BNC BNC/BNC BNC or 4-pin/BNC External DC Powerable yes yes no yes DC Power Input Jack 1/8 dia. 1/8 dia. mini DIN 6-pin jack Size (h x w x d) 4.0 x 2.9 x 1.5 in 4.0 x 2.9 x 1.5 in 4.0 x 2.9 x 1.5 in 7.5 x 5 x 2 in (102 x 74 x 38 mm) (102 x 74 x 28 mm) (102 x 74 x 28 mm) (191 x 127 x 51 mm) Weight 0.62 lb (284 g) 0.75 lb (341 g) 0.61 lb (277 g) 1.1 lb (499 g) Optional Models Input/Output Connectors 480C 480E06 N/A N/A Rechargeable (supplied with Ni-Cad batteries R480C02 R480E09 R480B10 N/A and AC powered recharger unit) Options AC Powered Recharger Unit with 488A02 488A02 488A02 N/A (3) 9 V Ni-Cad Batteries AC Power Supply 488A03 488A03 488A10 Ultralife Lithium Batteries (3) > 200 hours operation > 100 hours operation NOTES: 1. Achieved with readout device having a 1 megohm input impedance HOUR SENSORLINE SM WEBSITE

113 Line-Powered Signal Conditioners for ICP Sensors Line-Powered, ICP Sensor Signal Conditioners Line-powered signal conditioners offer benchtop methods for powering ICP sensors in the laboratory and conditioning their output signals for transmittal to readout and recording instruments. Each features a color-coded, input circuit checkout meter to alert of proper sensor turn-on or input fault due to open or short circuit connections. AC and DC powerable units can operate either with the supplied AC powered transformer or optional external battery pack. AC/DC coupled outputs offer the ability to achieve true DC frequency response in order to accurately condition very low frequency vibrations or long duration shock pulses. Model 482A21 Unity gain, low noise, AC and DC powerable Model 482A22 4 channel, unity gain, low noise, AC and DC powerable Model 482B06 Basic, unity gain Model 482B11 Gain x1, x10, x100 Model 484B06 Low frequency, unity gain, AC/DC coupled output Model 484B11 Low frequency, gain x1, x10, x100, AC/DC coupled output Line-Powered Signal Conditioners MODEL NUMBERS 482A21 482A22 482B06 482B11 484B06 484B11 Style low noise low noise basic gain low frequency low frequency AC and DC power AC and DC power AC/DC coupled with gain Channels 1 channel 4 channels 1 channel 1 channel 1 channel 1 channel Sensor Excitation (1) 26 volt, 2 to 20 ma 26 volt, 2 to 20 ma 24 volt, 2 to 20 ma 24 volt, 2 to 20 ma 24 volt, 2 to 20 ma 24 volt, 2 to 20 ma Gain unity unity unity x1, x10, x100 unity x1, x10, x100 Low Frequency Response (- 5%) < 0.1 Hz (2) < 0.1 Hz (2) < 0.05 Hz 0.17 Hz DC DC High Frequency Response (- 5%) > Hz > Hz Hz Hz Hz Hz Broadband Noise (at unity gain) < 3.25 µv rms < 3.25 µv rms < 3.64 µv rms N/A 28.8 µv rms 10 µv rms Power Required 36 VDC 36VDC 115 VAC 115 VAC 115 VAC 115 VAC 120 ma (3) 120 ma (3) 50 to 400 Hz 50 to 400 Hz 50 to 400 Hz 50 to 400 Hz Input/Output Connectors BNC/BNC BNC/BNC BNC/BNC BNC/BNC BNC/BNC BNC/BNC External DC Powerable yes yes no no no no DC Power Input Jack DIN DIN Size (h x w x d) 6.3 x 2.4 x 11 in 6.3 x 2.4 x 11 in 4.3 x 1.8 x 6 in 4.3 x 1.8 x 6 in 4.3 x 1.8 x 6 in 4.3 x 1.8 x 6 in (106 x 61 x 279 mm) (106 x 61 x 279 mm) (109 x 46 x 152 mm) (109 x 46 x 152 mm) (109 x 46 x 152 mm) (109 x 46 x 152 mm) Weight 1.51 lb (685 gm) 1.67 lb (756 gm) 1.2 lb (544 gm) 2 lb (907 gm) 2 lb (907 gm) 2 lb (907 gm) Optional Models Input/Output Connectors N/A N/A N/A N/A 484B 484B to 250 VAC Powerable standard standard F482B06 F482B11 F484B06 F484B11 Options External 36 VDC Battery Pack 488A07 488A07 N/A N/A N/A N/A NOTES: 1. Current is factory set at 4 ma but is user adjustable between 2 and 20 ma. 2. Achieved with readout device having a 1 megohm input impedance. 3. Supplied with Model 488A04 AC power adaptor (100 to 240 VAC, 50 to 60 Hz input; 36 VDC 120 ma output). IMI SENSORS DIVISION TOLL-FREE

114 Line-Powered Signal Conditioners for ICP Sensors Multi-Channel, Line-powered ICP Sensor Signal Conditioners with Gain These full-featured, multi-channel, line-powered signal conditioners offer push-button, selectable gain for each channel and optional output switching to simplify data acquisition. Each features a bank of LED s on each channel to indicate gain setting, input overload, and input fault due to open or short circuit connections. In addition to the channel specific BNC s, the optional switched output units offer additional output BNC s that carry the signals of the switch-selected channel. Model 482A16 4 channel, gain x1, x10, x100 Model 482A18 8 channel gain x1, x10, x100 8 to 1 output switching Full-Featured, Line-Powered Signal Conditioners with Gain MODEL NUMBERS 482A16 482A20 Style full feature with gain full feature with gain Channels 4 channels 8 channels Sensor Excitation (1) 24 volt, 2 to 20 ma24 volt, 2 to 20 ma Gain (each channel) x1, x10, x100 x1, x10, x100 Low Frequency Response (- 5%) Hz (2) Hz (2) High Frequency Response (- 5%) Hz Hz Broadband Noise (at unity gain) 9.1 µv rms 9.1 µv rms Power Required 90 to 130 VAC 90 to 130 VAC 50 to 400 Hz 50 to 400 Hz Input/Output Connectors BNC/BNC BNC/BNC Size (h x w x d) 6.3 x 2.9 x 9.7 in 6.3 x 4.0 x 9.7 in (160 x 74 x 246 mm) (160 x 102 x 246 mm) Weight 2 lb (907 gm) 6.1 lb (2769 gm) Optional Models 4 to 1 Output Switching 482A17 482A19 (3) 8 to 1 Output Switching N/A482A to 250 VAC Powerable F482A16 F482A20 NOTES: 1. Current is factory set at 4 ma but is user adjustable between 2 and 20 ma. 2. Achieved with readout device having a 1 megohm input impedance. 3. Model 482A19 offers dual 4 to 1 output switching and is ideally suited for use with two channel analyzers. Signal Conditioning Accessories ICP Sensor Simulator Preconfigured Modular Style Signal Conditioners ICP Sensor Simulator DC Power Conditioner Model 492B Model 401A04 Model 485B Model 492B ICP sensor simulator installs in place of an ICP sensor and serves to verify signal conditioning settings, cable integrity, and tune long lines for optimum system performance. By use of an internal oscillator, the unit delivers a 100 Hz sine or square wave at a selectable peak to peak voltage. External test signals from a function generator may also be inserted. This portable unit is battery powered. 96 Model 401A04 ICP sensor simulator installs in place of an ICP sensor and accepts test signals from a voltage function generator. The unit serves to verify signal conditioning settings, cable integrity, and tune long lines for optimum system performance. This unit requires power from an ICP sensor signal conditioner. 24-HOUR SENSORLINE SM WEBSITE Model 485B serves to regulate available current from any conventional 18 to 28 VDC power supply or battery source to a constant value between 2 and 20 ma as required by ICP sensors. In addition, the unit decouples the sensor s output bias voltage from the measurement signal to enable zero based measurements with any readout device.

115 Modular Style Signal Conditioners Modular Style Signal Conditioners Modular signal conditioners are comprised of selected signal conditioning modules, and an AC power supply module, assembled into a 2-, 3-, 5- or 9-slot chassis. Available modules condition ICP, charge, or capacitive sensor signals. The common chassis backplane architecture permits mixing and matching of modules to achieve the desired number of channels and signal conditioning features. Preconfigured models offer ease of ordering units possessing the most commonly requested features. Request the Series 440 Modular Signal Conditioners brochure for full details of available items. Modular Signal Conditioner Systems Preconfigured Modular Style Signal Conditioners Model 442B02 Single channel, gain x1, x10, x100 for ICP sensors Model 442C04 4 channel, gain x1, x10, x100 for ICP sensors Model 442B06 Single channel, gain x1, x10, x100 AC and DC coupling for ICP sensors Model 443B01 Dual-Mode Vibration Amplifier for charge, TEDS, and ICP sensors Modular Style Signal Conditioners MODEL NUMBERS 442B02 442C04 442B06 443B01 Style ICP sensor with gain ICP sensor with gain ICP sensor AC/DC coupling charge, ICP, and TEDS Channels 1 channel 4 channels 1 channel 1 channel Sensor Excitation (1) 24 volt, 1 to 20 ma 25.5 volt, 0.5 to 20 ma 24 volt, 1 to 20 ma 24 volt, 2 to 20 ma (2) Gain (each channel) x1, x10, x100 x1, x10, x100 x1, x10, x to 1000 Charge Sensitivity N/A N/A N/A to 10 volts/pc Low Frequency Response 0.05 Hz (- 5%) (3) 0.05 Hz (- 5%) (3) DC 0.2/2 Hz (- 10%) (4) High Frequency Response 100k Hz (- 5%) 100k Hz (- 5%) 100k Hz (- 5%) 100, 1k, 3k, 10k, 110k Hz (- 10%) (5) Broadband Noise (at unity gain) 8.3 µv rms 10 µv rms 12.5 µv rms 9 µv rms Power Required 100 to 240 VAC 100 to 240 VAC 100 to 240 VAC 100 to 240 VAC 50 to 60 Hz 50 to 60 Hz 50 to 60 Hz 50 to 60 Hz Input/Output Connectors BNC/BNC BNC/BNC BNC/BNC BNC/BNC Size (h x w x d) 6.2 x 4.25 x 10.2 in 6.2 x 4.25 x 10.2 in 6.2 x 4.25 x 10.2 in 6.2 x 6.05 x 10.2 in (158 x 108 x 259 mm) (158 x 108 x 259 mm) (158 x 108 x 259 mm) (158 x 108 x 259 mm) Weight 4.9 lb (2.2 kg) 5.1 lb (2.3 kg) 5.0 lb (2.3 kg) 6.55 lb (2.97 kg) NOTES: 1. Current is factory set at 4 ma but is user adjustable up to 20 ma. 2. Excitation is disabled for charge mode sensor input. 3. Achieved with readout device having a 1 megohm input impedance. 4. Adjusted by Discharge Time Constant selection. 5. Adjusted by Low Pass Filter selection. IMI SENSORS DIVISION TOLL-FREE

116 Multi-Channel Signal Conditioners Multi-Channel Signal Conditioners Multi-channel, rack-mount, signal conditioners contain 16 channels of simultaneous signal conditioning and can be configured for multiple unit, daisy-linking with computerized set-up and control. The building-block style architecture permits factory configuration to include characteristics which best tailor a unit for the specific application and data acquisition requirements. Standard features include ICP sensor excitation and LED indicators for input fault monitoring and overload detection. Optional features include programmable gain, autoranging, filtering, output switching, integration, IEEE-488, RS-232, and RS-485 interface, and keypad control with LCD display. Units are available to condition signals from ICP sensors, charge-mode sensors, or can be set up to accept voltage input signals from other types of sensors. Preconfigured models offer ease of ordering units possessing the most commonly requested features. Request the Series 481 Multi-Channel Signal Conditioners brochure for full details of available items. Preconfigured Multi-channel Signal Conditioners Model 481A01 16 channel, unity gain for ICP sensors Model 481A02 16 channel, gain x1, x10, x100 for ICP sensors Model 481A03 16 channel, continuous gain x0.1 to x200 for ICP sensors Multi-Channel Signal Conditioners MODEL NUMBERS 481A01 481A02 481A03 Style unity gain selectable gain continuous gain adjust with keypad & display with keypad & display Channels 16 channels 16 channels 16 channels Sensor Excitation (1) 24 volt, 3 to 20 ma 24 volt, 3 to 20 ma 24 volt, 3 to 20 ma Gain (each channel) unity autoranging continuous x1, x10, x100 x0.1 to x200 Frequency Response (± 5%) 0.5 to Hz 0.5 to Hz 0.5 to Hz (2) Broadband Noise (at unity gain) 11 µv rms 11 µv rms 4 mv Power Required 100 to 240 VAC 100 to 240 VAC 100 to 240 VAC 47 to 63 Hz 47 to 63 Hz 47 to 63 Hz Keypad Control no yes yes Computer Control no RS-232 and RS-485 RS-232 and RS-485 Input Connectors DB50 and BNC DB50 and BNC DB50 and BNC Output Connectors DB37 and BNC DB37 and BNC DB37 and BNC Size (h x w x d) 3.5 x 19.0 x in 3.5 x 19.0 x in 3.5 x 19.0 x in (89 x 483 x 413 mm) (89 x 483 x 413 mm) (89 x 483 x 413 mm) Weight 15 lb (6.8 kg) 15 lb (6.8 kg) 15 lb (6.8 kg) NOTE: 1. Current is factory set at 4 ma but is user adjustable between 3 and 20 ma. 2. Attains Hz with filter disabled HOUR SENSORLINE SM WEBSITE

117 Accessory Equipment Cable assemblies Cable connectors Magnetic bases Mounting hardware Installation tools Portable shakers IMI manufactures a multitude of accessory equipment to complement the use and installation of industrial vibration sensors. Many of the cables and mounting accessories are compatible not only with IMI s sensors, but also sensors and data collection devices from other manufacturers. Most accessory equipment is stocked to accommodate emergency needs. It is important to recognize that cables are vulnerable to damage and should be installed out of harms way. Armored cables offer further protection from flying, machined chips, debris, or when cables may be located under foot. Having spare cables on hand is recommended as they can help troubleshoot system performance and keep a measurement system up and running in the event of a cable failure. PCB IMI SM Sensors Division toll-free FAX imi@pcb.com Website 99

118 Cable Ordering Guide HOW TO ORDER CUSTOM CABLES: 1. First determine whether the cable shall be ordered in English or Metric unit lengths. 2. Choose the desired cable. (See pages for cable specifications). 3. Find the connector that mates to the sensor. (See pages for connector photos). 4. Determine the length of cable required. 5. Choose the cable termination connector. (See pages ). 6. Fill the squares with appropriate letter or number designation: Example: Model 052BR015AC defines a 15 ft, general purpose, polyurethane jacketed, shielded, twisted pair cable with a two-pin socket MIL type MS3106 composite sensor connector and a BNC plug termination connector. LENGTH UNIT Feet - leave blank Meters - M B R A C CABLE TYPE STANDARD CABLE TYPES SHIELDED, TWISTED PAIR DIAMETER MAX. TEMP. 042 Lightweight, polyurethane jacket in (4.1 mm) 250 F (121 C) 044 Coiled, polyurethane jacket in (4.6 mm) 176 F (80 C) 045 High temperature, PFA Teflon jacket in (5.2 mm) 500 F (260 C) 047 Steel armored, polyurethane in (10.4 mm) 250 F (121 C) 048 Steel armored, high temp. FEP Teflon in (6.8 mm) 392 F (200 C) 050 Coiled, lightweight, TPE jacket in (5.3 mm) 176 F (80 C) 052 General purpose, polyurethane jacket in (6.4 mm) 250 F (121 C) 053 High temperature, FEP Teflon jacket in (4 mm) 392 F (200 C) 055 High temperature, FEP Teflon jacket in (4.8 mm) 392 F (200 C) 058 Coiled, heavy duty, polyurethane in (6.4 mm) 250 F (121 C) SHIELDED, MULTI-CONDUCTOR 043 Steel armored, 4-cond., polyurethane in (10.4 mm) 250 F (121 C) pair (32-conductor), PVCjacket 0.70 in (17.8 mm) 221 F (105 C) pair (24-conductor), PVCjacket 0.60 in (15.2 mm) 220 F (105 C) conductor, FEP Teflon jacket in (4.8 mm) 392 F (200 C) conductor, FEP Teflon jacket in (4.8 mm) 392 F (200 C) conductor, polyurethane jacket in (6.4 mm) 250 F (121 C) conductor, polyurethane jacket in (4.1 mm) 250 F (121 C) COAXIAL 051 Heavy duty, RG-58/U, PVCjacket in (4.9 mm) 176 F (80 C) 054 High temperature, FEP Teflon jacket in ( 3.6 mm) 392 F(200 C) 060 General purpose, FEP Teflon jacket in (1.9 mm) 400 F(204 C) NOTES indicates that cable maintains CE conformance SENSOR CONNECTOR CABLE LENGTH English - Feet Metric - Meters TERMINATION CONNECTOR STANDARD CONNECTOR TYPES CODE CONNECTOR COMPATIBLE CABLES TWO-SOCKET PLUGS AE MIL-type MS3106 with environmental boot AM MIL-type MS3106 AP MIL-type MS3106 with strain relief BC MIL-type MS3106 for high temperatures BP MIL-type MS3106 for high temperatures with strain relief BQ MIL-type MS3108 right angle, composite BR MIL-type MS3106, composite BS MIL-type MS3108, right angle BT MIL-type MS3108, right angle for high temperatures CJ MIL-type MS3116 bayonet style DN MIL-type MS3106, composite, with stainless steel clamp ring ECMIL-type MS3106 with environmental boot, lock ring and adaptor ER MIL-type for high temperatures FV MIL-type with environmentally sealed boot OTHER MULTI-PIN OR SOCKET AN 4-socket, MIL type MS3116 BV 3-socket, MIL type MS3106 BY 28-pin bayonet, for switch box MO option CD MIL-type MS3101A CE MIL-type with strain relief CS 3-socket MIL type MS3116 bayonet style CV 25-pin D style for CSI data collector interface CW 25-pin D style for SKF data collector interface DP 7-pin LEMO style for Entek data collector interface DR 4-socket MIL type MS3116 bayonet style DS 3-pin MIL type MS3106 with environmental boot EA 4-pin Bendix EF 3-socket, MIL type MS3106, nylon EG Multi-pin bayonet FY 3-socket, MIL type with environmental boot COAXIAL AB BNC jack AC BNC plug EJ plug (spring loaded) AG 5-44 plug MISCELLANEOUS TERMINATIONS AD Pigtail (leads stripped and tinned) BZ Blunt cut AS #10 spade lugs HOUR SENSORLINE SM WEBSITE

119 Cable Connectors AB. BNC Jack BC. 2-socket MIL-type MS3106 for high temperatures. Temperature range to 325 F (163 C). AC. BNC Plug AD. Pigtail (leads stripped and tinned) BP. 2-socket MIL-type MS3106 for high temperatures with strain relief. Temperature range to 325 F (163 C). AE. 2-socket MIL-type MS3106 with environmental boot. Temperature range to 325 F (163 C). BQ. 2-socket MIL-type MS3108 molded composite, right angle. Temperature range to 250 F (121 C). AM. 2-socket MIL-type MS3106. Temperature range to 325 F (163 C). BR. 2-socket MIL-type MS3106 molded composite. Temperature range to 250 F (121 C). AN. 4-socket MIL-type MS3116. Temperature range -67 to 257 F (-55 to 125 C). BS. 2-socket MIL-type MS3108 right angle. Temperature range to 250 F (121 C). AP. 2-socket MIL-type MS3106 with strain relief. Temperature range to 325 F (163 C). BT. 2-socket MIL-type MS3108 right angle, for high temperatures. Temperature range to 330 F (166 C). AS. #10 Spade Lugs BV. Nylon 3-socket, MIL-type MS3106 for units having TO option. Temperature range to 250 F (121 C). IMI SENSORS DIVISION TOLL-FREE

120 Cable Connectors BY. 28-pin Bayonet for junction box multioutput option. Temperature range -67 to +257 F (-55 to +125 C). CW. 25-pin, D style for SKF data collector interface. Temperature range -67 to +257 F (-55 to +125 C). BZ. Blunt Cut Temperature range -58 to +250 F (-50 to +121 C). DN. 2-socket, MIL-type MS3101A composite, with stainless steel clamp ring. Temperature range -67 to +257 F (-55 to +125 C). CD. 2-socket MIL- type MS3101A. Temperature range -67 to +257 F (-55 to +125 C). DP. 7-pin, LEMO type for Entek data collector interface. Temperature range -67 to +392 F (-55 to +200 C). CE. 2-socket MIL-type with strain relief. Temperature range -67 to +257 F (-55 to +125 C). DR. 4-socket, MIL-type MS3116 bayonet. Temperature range -67 to +257 F (-55 to +125 C). CJ. 2-socket MIL-type MS3116 bayonet. Temperature range -67 to +257 F (-55 to +125 C). DS. 3-socket, MIL-type MS3106 with environmental boot. Temperature range -67 to +257 F (-55 to +125 C). CS. 3-socket MIL-type MS3116 bayonet. Temperature range -67 to +257 F (-55 to +125 C). EA. 4-pin Bendix, cylindrical straight plug. Temperature range -67 to +257 F (-55 to +125 C) CV. 25-pin, D style for CSI data collector interface. Temperature range -67 to +257 F (-55 to +125 C). 102 EC. 2-socket MIL-type MS3106 with environmental boot, stainless steel locking ring, and adaptor. Temperature range to 330 F (166 C) HOUR SENSORLINE SM WEBSITE

121 Cable Connectors EF. Nylon 3-socket MIL-type 3106 for biaxial sensors only. Temperature range to 250 F (121 C). FV. 2-socket, MIL-type MS3106 with environmental boot. Temperature range -67 to +257 F (-55 to +125 C). EG. 35-pin bayonet with strain relief for multiple outputs. Temperature range -67 to +257 F (-55 to +125 C). FY. 3-socket MIL-type MS3106 with environmental boot. Temperature range EJ coaxial spring loaded. Temperature range to 392 F (200 C). ER. 2-socket, MIL-type for high temperatures. Temperature range to 500 F (260 C). Field Installable Connector Kits These connector kits permit users to fabricate their own cable assemblies or conduct cable repairs in the field. It is often desirable to install and cut cables to required lengths and then install the necessary sensor connectors. CF. 2-socket, composite MIL-type MS3106 field installable kit. Temperature range -67 to +257 F (-55 to +125 C). 075A03. 2-socket, MIL-type MS3106 with environmental boot for in dia. cable. 075A01. 2-socket, MIL-type MS3106 with environmental boot for in dia. cable. 075A04. 2-socket, MIL-type MS3106 with environmental boot for in dia. cable. 075A02. 2-socket, MIL-type MS3106 with environmental boot for in dia. cable. IMI SENSORS DIVISION TOLL-FREE

122 Cable Specifications and Standard Models CABLE SPECIFICATIONS AND STANDARD CABLE MODELS The following tables provide specifications and configuration diagrams for the variety of available cable types. Where applicable, standard cable assembly model numbers are provided. Standard models can be less costly than custom cables and available for overnight shipment. For alternate cable lengths or custom model numbering, follow the guidelines provided on page 98. If there is an urgent need, please let us know. Most cables can be fabricated and shipped within 24 hours. Usage Recommended for general purpose use with industrial ICP sensors having 2-pin connectors. Shielded construction protects against RFI and EMI noise. Maintains conformance.. Outer Jacket Polyurethane, black Diameter 0.25 in 6.35 mm Capacitance 36 pf/ft 118 pf/m Temperature Range -58 to 250 ºF -50 to 121 ºC Conductors 20 AWG tinned copper, stranded Standard Cable Assemblies Model Number Length (feet) Length (meters) Series 052 General Purpose, Shielded, Twisted Pair Construction Black Polyurethane Jacket Braid Shield Conductor #1 Red (signal) Conductor #2 Blue (ground) 22 AWG Drain Wire 052AE010AC 10 ft 3.0 m 052AE010BZ 10 ft 3.0 m 052AE020BZ 20 ft 6.1 m 052AE030BZ 30 ft 9.1 m 052AE050BZ 50 ft 15.2 m 052BQ010AC 10 ft 3.0 m 052BQ010BZ 10 ft 3.0 m 052BQ020BZ 20 ft 6.1 m 052BQ030BZ 30 ft 9.1 m 052BQ050BZ 50 ft 15.2 m 052BR010AC 10 ft 3.0 m 052BR010BZ 10 ft 3.0 m 052BR020BZ 20 ft 6.1 m 052BR030BZ 30 ft 9.1 m 052BR050BZ 50 ft 15.2 m HOUR SENSORLINE SM WEBSITE

123 Cable Specifications and Standard Models Series 042 Lightweight, Shielded, Twisted Pair Usage Construction Recommended for general purpose use with industrial ICP sensors having 2-pin connectors. Well suited for interface with LEMO type connectors. Black Polyurethane Jacket Shielded construction protects against RFI and EMI noise. Outer Jacket Polyurethane, black Diameter in 4 mm Capacitance 20 pf/ft 65 pf/m Temperature Range -58 to 250 ºF -50 to 121 ºC Braid Shield Conductors 26 AWG tinned copper, stranded Conductor #1 White (signal) Conductor #2 Black (ground) Series 053 High Temperature, Shielded, Twisted Pair Usage Construction Recommended for high temperature use with industrial ICP sensors having 2-pin connectors. Shielded construction protects against RFI and Red FEP Teflon Jacket EMI noise. Maintains conformance.. Foil Shield Outer Jacket FEP Teflon (red tint) Diameter in 4 mm Capacitance between adjacent conductors 51 pf/ft 167 pf/m Capacitance between 97 pf/ft 318 pf/m conductor and shield 20 AWG Drain Wire Temperature Range -90 to 392 ºF -70 to 200 ºC Conductors 18 AWG tinned copper, solid Standard Cable Assemblies Model Number Length (feet) Length (meters) Conductor #1 Red (signal) Conductor #2 Black (ground) 053DN016BZ 16 ft 4.9 m 053DN032BZ 32 ft 9.8 m 053DN064BZ 64 ft 19.5 m 053DN112BZ 112 ft 34.1 m 053BQ050BZ 50 ft 15.2 m 053BR010BZ 10 ft 3.0 m 053BR020BZ 20 ft 6.1 m 053BR030BZ 30 ft 9.1 m 053BR050BZ 50 ft 15.2 m IMI SENSORS DIVISION TOLL-FREE

124 Cable Specifications and Standard Models Usage Recommended for use in dedicated installations of single axis sensors in high temperature environments or where chemical resistivity is important.. Outer Jacket Extruded FEP Teflon, bright orange Diameter in 4.8 mm Capacitance 27 pf/ft 88.6 pf/m Temperature Range -85 to 392 ºF -65 to 200 ºC Conductors 20 AWG tinned plated copper, stranded Standard Cable Assemblies Model Number Length (feet) Length (meters) Series 055 High Temperature, Heavy Duty, Shielded, Twisted Pair Construction Orange FEP Teflon Jacket Braid Shield Conductor #1 Red (signal) Conductor #2 Black (ground) 055EC016BZ 16 ft 4.9 m 055EC032BZ 32 ft 9.8 m 055EC064BZ 64 ft 19.5 m Series 045 Very High Temperature, Heavy Duty, Shielded, Twisted Pair Usage Construction Recommended for use with high-temperature, charge mode accelerometers. Connects accelerometer to the in-lin charge converter.. Red PFA Teflon Jacket Conductor #1 (with low noise TFE wrap) Outer Jacket Extruded PFA, red Diameter in 5.2 mm Conductor #2 (with Capacitance 30 to 40 pf/ft 98 to 131 pf/m low noise TFE wrap) Temperature Range -130 to 500 ºF -90 to 260 ºC Conductors 22 AWG nickel plated copper, stranded Standard Cable Assemblies Braid Shield Graphite Impregnated PTFE tape Model Number Length (feet) Length (meters) 045ER010CJ 10 ft 3.0 m 045ER015CJ 15 ft 4.5 m HOUR SENSORLINE SM WEBSITE

125 Cable Specifications and Standard Models Series 044 Coiled, General Purpose, Lightweight, Shielded, 2-Conductor Usage Construction Recommended for portable data collection use with smaller, lightweight accelerometers.. Black Polyurethane Jacket Outer Jacket Polyurethane, black Diameter in 4.6 mm Capacitance 40 pf/ft 131 pf/m Temperature Range -40 to 176 ºF -40 to 80 ºC Conductors 24 AWG tinned soft copper, stranded Standard Cable Assemblies Model Number Length (feet) Length (meters) Conductor #1 Red (signal) Conductor #2 Blue (ground) Braid shield over each conductor 044AP006DP 6 ft 1.8 m 044AP010DP 10 ft 3.0 m Series 058 Coiled, Heavy-Duty, Shielded, Twisted Pair Usage Construction Recommended for interfacing industrial ICP sensors having 2-pin connectors with portable, vibration data collectors. Shielded construction Black Polyurethane Jacket protects against RFI and EMI noise. Maintains conformance. Outer Jacket Polyurethane, black Diameter in 6.4 mm Capacitance 36 pf/ft 118 pf/m Temperature Range -58 to 250 ºF -50 to 121 ºC Conductors 20 AWG tinned copper, stranded Standard Cable Assemblies Model Number Length (feet) Length (meters) Conductor #1 Red (signal) Conductor #2 Blue (ground) Braid Shield 058AM006AC 6 ft 1.8 m 058AM010AC 10 ft 3.0 m 058AM015AC 15 ft 4.5 m IMI SENSORS DIVISION TOLL-FREE

126 Cable Specifications and Standard Models Series 050 Coiled, Lightweight, Shielded Pair Usage Construction Recommended for interfacing industrial ICP sensors having 2-pin connectors Black TPE Jacket with portable, vibration data collectors. Shielded construction protects against RFI and EMI noise.. Outer Jacket Thermal Plastic Elastimere (TPE), black Diameter in 5.3 mm Capacitance 31 pf/ft 94 pf/m Temperature Range -22 to 176 ºF -30 to 80 ºC Conductors 23 AWG tinned copper, stranded Standard Cable Assemblies Model Number Length (feet) Length (meters) Conductor #1 White (signal) Conductor #2 Black (ground) Braid shield over each conductor 050AE006AC 6 ft 1.8 m 050AE010AC 10 ft 3.0 m 050BQ006AC 6 ft 1.8 m 050BQ010AC 10 ft 3.0 m 050BR006AC 6 ft 1.8 m 050BR010AC 10 ft 3.0 m 050FV006AC 6 ft 1.8 m 050FV010AC 10 ft 3.0 m 050FV006CV 6 ft 1.8 m 050FV010CV 10 ft 3.0 m HOUR SENSORLINE SM WEBSITE

127 Cable Specifications and Standard Models Usage Recommended for use with industrial ICP sensors having 2-pin connectors and in harsh environments, especially where cable may get pinched or crushed. Shielded construction protects against RFI and EMI noise.. Outer Jacket Stainless steel over polyurethane Diameter in 10.4 mm Capacitance 36 pf/ft 118 pf/m Temperature Range -58 to 250 ºF -50 to 121 ºC Conductors 20 AWG tinned copper, stranded Standard Cable Assemblies Model Number Length (feet) Length (meters) Series 047 Steel Armored, Shielded, Twisted Pair Construction Stainless Steel Armor Polyurethane Jacket Braid Shield 22 AWG Drain Wire Conductor #1 Red (signal) Conductor #2 Blue (ground) 047AM010AC 10 ft 3.0 m 047AM010BZ 10 ft 3.0 m Series 048 Steel Armored, High Temperature, Shielded, Twisted Pair Usage Recommended for high temperature use with industrial ICP sensors having 2-pin connectors and in harsh environments, especially where cable may get pinched or crushed. Shielded construction protects against RFI and EMI noise.. Outer Jacket Stainless steel over FEP Teflon Diameter in 6.8 mm Capacitance between conductors 51 pf/ft 167 pf/m Capacitance between conductor and shield 97 pf/ft 318 pf/m Temperature Range -90 to 392 ºF -70 to 200 ºC Conductors 18 AWG tinned copper, stranded Standard Cable Assemblies Model Number Length (feet) Length (meters) Construction Stainless Steel Armor Jacket FEP Teflon Jacket Foil Shield Conductor #2 Blue (ground) Conductor #1 Red (signal) 20 AWG Drain Wire 048BP010BZ 10 ft 3.0 m 048BP010AC 10 ft 3.0 m IMI SENSORS DIVISION TOLL-FREE

128 Cable Specifications and Standard Models Series 043 Steel Armored, Shielded, Twisted, 4-conductor Usage Construction Recommended for use with multi-axis industrial ICP sensors in harsh environments, especially where cable may get pinched or crushed. Stainless Steel Armor Braid Shield Shielded construction protects against RFI and EMI noise.. Outer Jacket Stainless steel over polyurethane Diameter in 10.4 mm Capacitance 36 pf/ft 118 pf/m Temperature Range -58 to 250 ºF -50 to 121 ºC Conductors 20 AWG tinned copper, stranded Polyurethane Jacket Standard Cable Assemblies Model Number Length (feet) Length (meters) Conductor #1 Conductor #2 Conductor #3 Conductor #4 043AN010BZ 10 ft 3.0 m 043AN020BZ 20 ft 6.1 m Series 056 High Temperature Shielded, Twisted, 3-conductor Usage Construction Recommended for use in dedicated installations of dual output sensors in high temperature environments or where chemical resistivity is Orange FEP Teflon Jacket important. Outer Jacket Extruded FEP Teflon, bright orange Diameter in 4.8 mm Capacitance 27 pf/ft 88.6 pf/m Temperature Range -85 to 392 ºF -65 to 200 ºC Conductors 20 AWG tin plated copper, stranded Braid Shield Standard Cable Assemblies Model Number Length (feet) Length (meters) Conductor #1 Conductor #2 Conductor #3 056FY016BZ 16 ft 4.9 m 056FY032BZ 32 ft 9.8 m 056FY064BZ 64 ft 19.5 m Usage Supplied as an integral cable with Series TO607 and TO608 sensors. Outer Jacket Polyurethane, black Diameter in 4.1 mm Capacitance 20 pf/ft 65 pf/m Temperature Range -65 to 250 F -54 to 121 C Conductors 28 AWG tinned copper, stranded 110 Series 062 Shielded, Twisted, 3-conductor Construction Black Polyurethane Jacket Braid Shield Conductor #1 White Conductor #2 Black Conductor #3 Red HOUR SENSORLINE SM WEBSITE

129 Cable Specifications and Standard Models Series 059 Shielded, Twisted, 4-conductor Usage Construction Recommended for general purpose use with multi-axis industrial ICP sensors having 4-pin connectors. Shielded construction protects against Black Polyurethane Jacket RFI and EMI noise. Maintains conformance.. Outer Jacket Polyurethane, black Diameter in 6.4 mm Capacitance 36 pf/ft 118 pf/m Temperature Range -58 to 250 ºF -50 to 121 ºC Braid Shield Conductors 20 AWG tinned copper, stranded Standard Cable Assemblies Model Number Length (feet) Length (meters) 4-conductors (black, white, green, red) 059AN010AC 10 ft 3.0 m 059AN010BZ 10 ft 3.0 m 059AN020BZ 20 ft 6.1 m 059AN030BZ 30 ft 9.1 m 059AN050BZ 50 ft 15.2 m Series 057 High Temperature, Shielded, Twisted, 4-conductor Usage Construction Recommended for use in dedicated installations of triaxial sensors in Orange FEP Teflon Jacket high temperature environments or where chemical resistivity is important.. Outer Jacket Extruded FEP Teflon, bright orange Diameter in 4.8 mm Capacitance 24 pf/ft 79 pf/m Temperature Range -85 to 392 ºF -65 to 200 ºC Conductors 22 AWG tin plated copper, stranded Braid Shield Standard Cable Assemblies Model Number Length (feet) Length (meters) 057AN010BZ 10 ft 3.0 m 057AN020BZ 20 ft 6.1 m 057AN030BZ 30 ft 9.1 m 057AN050BZ 50 ft 15.2 m 4-conductors IMI SENSORS DIVISION TOLL-FREE

130 Cable Specifications and Standard Models Usage Recommended for use with interface boxes. Shielded construction protects against RFI and EMI noise.. Outer Jacket Polyvinyl chloride, black Diameter in 15.5 mm Capacitance 23 pf/ft 76 pf/m Temperature Range -40 to 221 ºF -40 to 105 ºC Conductors 20 AWG tinned copper, stranded Standard Cable Assemblies Model Number Length (feet) Length (meters) Series 049 Shielded, Twisted, 12-Pair (24 total conductors) Construction Black PVC Jacket 22 AWG Drain Wire Foil Shield 12 Twisted Pairs (24 total conductors) 049BY010AD 10 ft 3.0 m Series 046 Shielded, Twisted, 16-Pair (32 total conductors) Usage Construction Recommended for use with 16-channel switch boxes that have a multiple Black PVC Jacket 22 AWG Drain Wire output option. This approach is a cost effective method for connect- ing 16 measurement channels for continuous, on-line monitoring.. 16 Twisted Pairs Outer Jacket Polyvinyl chloride, black (32 total conductors) Diameter 0.70 in 17.8 mm Capacitance 23 pf/ft 75 pf/m Temperature Range -40 to 221 ºF -40 to 105 ºC Conductors 20 AWG tinned copper, stranded Foil Shield Standard Cable Assemblies Model Number Length (feet) Length (meters) 046EG010AD 10 ft 3.0 m HOUR SENSORLINE SM WEBSITE

131 Cable Specifications and Standard Models Usage Recommended for use as an output cable from signal conditioners and switch boxes.. Outer Jacket Polyvinyl chloride, black Diameter in 4.9 mm Capacitance 29 pf/ft 95 pf/m Temperature Range -40 to 176 ºF -40 to 80 ºC Conductor 20 AWG bare copper, solid Standard Cable Assemblies Model Number Length (feet) Length (meters) Series 051 Coaxial, Heavy Duty, Type RG58/U Construction Black PVC Jacket Polyethylene Dielectric Braid Shield (ground) Conductor (signal) 051AC010AC 10 ft 3.0 m Series 060 General Purpose, Small Diameter Coaxial Usage Construction Recommended for general purpose use with small size, high frequency ICP sensors having coaxial connectors.. Outer Jacket FEP Teflon, white Diameter in 1.9 mm White FEP Teflon Jacket PTFE Dielectric Conductor (signal) Capacitance 29 pf/ft 95 pf/m Temperature Range -130 to 400 F -90 to 204 C Conductor 30 AWG silver plated copper, stranded Braided Shield (ground) Usage Recommended for use in high temperature or corrosive environments, with ICP sensors having coaxial connectors.. Outer Jacket FEP Teflon, Extruded, Tinned, Brown Diameter in 3.6 mm Capacitance 15 pf/ft 49 pf/m Temperature Range -94 to 392 ºF -70 to 200 ºC Conductor 30 AWG silver plated, copper covered steel, stranded Standard Cable Assemblies Model Number Length (feet) Length (meters) Series 054 High Temperature Coaxial Construction Brown FEP Teflon Jacket Braid Shield (ground) PTFE Dielectric Conductor (signal) 054BP010AC 10 ft 3.0 m IMI SENSORS DIVISION TOLL-FREE

132 Mounting Hardware Vibration Sensor Mounting Pads These mounting pads may be adhesively bonded or welded to machinery surfaces at specific vibration sensor installation points. The pads ensure that periodic measurements are always taken from the exact same location, lending to more accurate and repeatable measurement data. Pads with tapped holes are for use with stud mounted sensors whereas the untapped pads are intended for use with magnetically mounted sensors. Vibration Sensor Mounting Pad Models For Stud Mounted Sensors Diameter Tapped Hole Model 080A93* 0.75 in (19mm) 1/4-28 (M6 x 1.0) thread Model 080A118* 1 in (25mm) 1/4-28 (M6 x 1.0) thread Model 080A91* in (35mm) 1/4-28 (M6 x 1.0) thread For Magnetic Mounted Sensors Model 080A in N/A Model 080A in N/A NOTES: *For models with metric dimensions, please use M prefix with model number listed above. For permanent installations, the pads facilitate mounting of sensors without actually machining the surface onto which they are to be installed. Also, the untapped pads may be utilized to achieve magnetic attraction on non-ferrous surfaces. All mounting pads are manufactured from resilient, stainless steel. Magnetic Mounting Bases Magnetic mounting offers the most convenient method of temporary sensor installation for routebased measurements and data collection. IMI s magnetic mounting bases feature rare-earth magnet elements to achieve high attraction forces to the test structure. This aids in high frequency transmissibility and assures attraction for weighty sensors and conditions of high vibration. Rail mount styles are utilized for curved surfaces, such as motor housings and pipes. Knurled housings aid in gripping for removal. Hex shaped magnetic bases are designed for smaller high frequency sensors. All magnetic mounting bases are manufactured from resilient, stainless steel. Magnetic Mounting Base Models For Flat Surfaces Diameter Thread Attraction Force Model 080A120* 0.75 in (19 mm) 1/4-28 (M6 x 1.0) stud 15 lb (67 N) Model 080A121* 1 in (25 mm) 1/4-28 (M6 x 1.0) stud 35 lb (156 N) Model 080A122* 1.5 in (38 mm) 1/4-28 (M6 x 1.0) stud 50 lb (222 N) For Curved Surfaces Model 080A130* 0.75 in (19 mm) 1/4-28 (M6 x 1.0) stud 15 lb (67 N) Model 080A131* 1 in (25 mm) 1/4-28 (M6 x 1.0) stud 35 lb (156 N) Model 080A132* 1.5 in (38 mm) 1/4-28 (M6 x 1.0) stud 55 lb (245 N) Model 080A133* 2 in (51 mm) 1/4-28 (M6 x 1.0) stud 85 lb (378 N) For Small, High Frequency Sensors Model 080A in (9.5 mm) 5-40 female 2.5 lb (11 N) Model 080A in (19 mm) male 12 lb (53 N) NOTES: *For models with metric dimensions, please use M prefix with model number listed above. Note: Exercise caution when installing magnetically mounted sensors by engaging the edge of the magnet with the structure and carefully rolling the sensor/magnet assembly to an upright position. Never allow the magnet to impact against the structure as this may damage the sensor by creating shock acceleration levels beyond survivable limits HOUR SENSORLINE SM WEBSITE

133 Mounting Hardware Epoxy Kits These epoxy kits provide a secure means for mounting accelerometers and adhesive mounting bases to machine structures. Model 075A05 Small Epoxy Kit Model 075A06 Large Epoxy Kit Mounting Studs and Bolts Although each sensor is supplied with a mounting stud or bolt, it is good practice to keep a few spares on hand for use in the event of an unforeseen failure. The following tables provide guidelines for selecting the stud or bolt for use with a particular sensor series. If in doubt, check the sensor specification sheet to determine the model of the recommended stud or bolt. Mounting Stud Models Studs Thread Comment Model 081A to 1/4-28 BeCu, no shoulder Model 081A30 1/4-28 to 1/4-28 SS, with shoulder, in length Model 081B to BeCu, with shoulder Model 081B20 1/4-28 to 1/4-28 BeCu, with shoulder Model 080A156 1/2-20 to 1/4-28 Use with 607A11, 607A61 Model 080A162 3/4-16 to 1/4-28 Use with 607A01, 608A11 Model 080A165 3/4-16 floating hex nut Use with 608A11 Model M081B to M BeCu, no shoulder Model M081A61 1/4-28 to M6 1.0 BeCu, no shoulder Model M080A159 1/2-20 to M6 1.0 Use with M607A11, M607A61 Model M080A163 3/4-16 to M6 1.0 Use with M607A01 Set Screws Thread Comment Model 081A SS with brass tip, socket head, in length Model 081A40 1/4-28 SS with brass tip, socket head, 0.5 in length Model 081A41 1/4-28 SS with brass tip, socket head, in length Mounting Studs Model 080A162 Mounting Stud Model 080A165 Floating Hex Nut Mounting Bolt Models Mounting Bolts Studs Thread Length Usage Model 081A56 1/ in Series 629 Model 081A68 1/ in Series 604, 605, 606 Model 081A57 1/ in Series 624, 625A Model 081A67 1/ in Captive style for Series 602 Model 081M85 1/ in Captive style for Series 624, 625A Model 081A73 1/ in Series 625B Model 081A97 1/ in Series 602, Model 635A01 Model 081A76 1/ in Model 631A80 Model M081A59 M mm Series M629 Model M081A68 M mm Series M604, M605, M606 Model M081A58 M mm Series M624, M625A Model M081A73 M mm Series M625B Model M081A97 M mm Series M602, Model M635A01 Model M081A76 M mm Model M631A80 IMI SENSORS DIVISION TOLL-FREE

134 Mounting Hardware Quick-Connect Mounting System This two-part system permits rapid mounting and dismounting of 1/4-28 threaded sensors with a quick, 3/4- turn engagement. The 1 inch hex shaped mounting pad is typically stud-mounted to machinery surfaces and left as a measurement point locator for route based measurements and data collection. The knurled, 1 inch (25 mm) diameter mounting base installs at the base of the stud or bolt-mounted sensor which is carried from point to point, engaged with the mounting pads for data collection, and then disengaged. The system permits greater high frequency transmissibility than magnetic mounted sensors. Both components are manufactured from resilient, stainless steel. Model 080A69 Mounting Base Model 081A69 Mounting Pad Triaxial Mounting Blocks Adapts three individual accelerometers for conducting vibration measurements in three orthogonal axes. Hex size listed represents the maximum allowable hex size for installed uni-axial accelerometers. Model 080A62 Mounting Block Model 080A57 Mounting Block Triaxial Mounting Block Models Model Dimensions Material Mounting via Sensor fasteners Max. hex Model 080A in cube stainless stl screws 1/4-28 screws 7/8 in Model 080A in cube stainless stl screws 1/4-28 screws 1-1/4 in Spot Face Preparation Tools Spot face tools provide an economical, simple means for preparation of machinery surfaces for vibration sensor installation. These tools are used with a standard hand drill to produce a smooth, flat surface, with a perpendicular pilot hole, that can be tapped with the appropriate sensor mounting thread. Surface preparation, prior to installing sensors, is an important consideration. A smooth, debris free surface will insure that high frequency vibrations are accurately transmitted to the installed sensor. A perpendicular, tapped hole for stud or bolt-mounting of the sensor is also important to avoid edge loading or the sensor base and inaccurate measurements. All spot face tools are manufactured from high-speed steel and 116 may be re-sharpened. Spotface Preparation Tool Models Model Spotface Diameter Model 080A127 1 in (25 mm) Model 080A in (32 mm) Model 080A in (38 mm) Model 080A in (57 mm) HOUR SENSORLINE SM WEBSITE

135 Mounting Hardware Motor Fin Mounting Stems These stems are designed to be either epoxied or welded in-between the cooling fins of large electric motors. The stems feature a flat mounting surface with a 1/4-28 tapped hole to facilitate either stud, bolt or magnetic mounting of vibration sensors. A variety of stem sizes accommodate different motor sizes and cooling fin geometries. All stems are manufactured from resilient, stainless steel. Motor Fin Mounting Stem Models Model Stem Thickness Overall Length Model 080A in (6.35 mm) in (40 mm) Model 080A in (6.35 mm) in (54 mm) Model 080A in (12.7 mm) in (41 mm) Model 080A in (12.7 mm) in (60 mm) Probe Tips Probe tips install onto vibration sensors to enable their use as hand-held vibration probes. This technique is useful if installation space is severely limited or for determining installation locations where vibration is most prevalent. Caution is advised when using probe tips since inaccuracies may result by factors such as applied pressure and orientation of the probe. All probe tips are manufactured from resilient, stainless steel and feature a tapped 1/4-28 threaded hole. Probe Tip Models Model Length Tapped Hole Model 080A107 2 in 1/4-28 thread Model 080A105 4 in 1/4-28 thread Model 080A108 8 in 1/4-28 thread IMI SENSORS DIVISION TOLL-FREE

136 Portable Shakers Model 699A01 This heavy-duty, portable shaker delivers a controlled, 1.0 g rms vibration, at 100 Hz, for verifying vibration sensor operation and sensitivity. The unit accommodates sensors weighing up to 1.0 pound and is packaged in a sturdy, painted, aluminum case. When powered by the internal, rechargeable, gel cell battery, the shaker is totally portable. A built-in battery charger and power cord are included. The unit may also be operated from AC line power. Internal mechanical stops guard against damage due to overload. Model 699A02 This hand-held, portable shaker delivers a controlled, 1.0 g rms or 1 g pk vibration, at Hz, for verifying vibration sensor operation and sensitivity. The unit accommodates sensors weighing up to 250 grams and is powered by four, standard AA type batteries. An auto-shutoff feature preserves battery life, however, continuous operation is switch selectable and an external DC power supply (Model 073A16) is available. Included is a nylon carry pouch with carry strap/belt loop. 118 Model 699A01 Specifications Dynamic Performance English SI Frequency (fixed, ± 5%) 6000 cpm 100 Hz Acceleration (± 5%) 1 g rms 9.8 m/s 2 rms Velocity 0.87 in/sec pk 22.1 mm/sec pk Displacement 2.77 mil pk-pk 0.07 mm pk-pk Amplitude Control Closed Loop Closed Loop Maximum Sensor Weight 1.0 lb 454 gm Environmental Temperature Range +32 to +150 F 0 to +65 C Electrical Warm-up Time < 10 sec < 10 sec Battery Type 12 VDC Gel Cell 12 VDC Gel Cell Battery Life (from full charge) 8 hours 8 hours Recharge Time 16 hours 16 hours Battery Charger Power 120/240 VAC 60 Hz 120/240 VAC 60 Hz Mechanical Sensor Mounting Thread 1/4-28 UNF female 1/4-28 UNF female Recommended Mounting Torque Hand-tight Hand-tight Enclosure Material Cast Aluminum Cast Aluminum Enclosure Finish Baked Enamel (blue) Baked Enamel (blue) Size (length width height) in mm Weight 12.7 lb 5.8 kg Options (indicate using prefix letter shown F - Alternate battery charger power, VAC 50/60 Hz M - Metric sensor mounting thread, M6 1.0 Model 699A02 Specifications Dynamic Performance English SI Frequency (fixed, ± 1%) Hz Hz Acceleration (± 3%) 1 g rms or pk 9.81 m/s 2 rms or pk Velocity 0.39 in/sec rms or pk 9.81 mm/s rms or pk Displacement 0.39 mil rms or pk 9.81 µm rms or pk Transverse Amplitude 3% 3% Distortion (0 to 250 gm load) 7% 7% Amplitude Control Closed Loop Closed Loop Maximum Sensor Weight 8.8 oz 250 gm Environmental Temperature Range +15 to +130 F -10 to +55 C Electrical Ramp-up Time < 3 sec < 3 sec Battery Type (4 required) 1.5 VDC Type AA 1.5 VDC Type AA Battery Life (with 250 gm load) 2.2 hours 2.2 hours Auto shut-off cycle 60 to 150 sec 60 to 150 sec Mechanical Sensor Mounting Thread 1/4-28 UNF female 1/4-28 UNF female Maximum Mounting Torque 10 in-lb 112 N-cm Size (diameter height) in mm Weight 31 oz 900 gm Options (indicate using prefix letter shown M - Metric acceleration, 10.0 m/s 2, (1.02 g) rms or pk HOUR SENSORLINE SM WEBSITE

137 Technical Information Selection and implementation of industrial accelerometers Accelerometer design and operating characteristics Using the bias voltage as a diagnostic tool Mounting techniques Drilling and tapping instructions Driving long cables Unit conversions Article reprints Glossary of terms Information to assist with machinery vibration analysis, predictive maintenance and condition based monitoring is readily available through the following: Professional Organizations CMVA/ACVM (Canadian Machinery Vibration Association) Suite 877, Crowfoot Crescent NW Calgary, AB T3G 3T2 ph: (403) fax: (403) web: MFPT (Machinery Failure Prevention Technology) 1877 Rosser Lane Winchester, VA ph: (540) fax: (540) web: Vibration Institute 6262 S. Kingery Highway Suite 212 Willowbrook, IL ph: (630) fax: (630) web: Trade Magazines InTech A Publication of ISA-The Instrumentation, Systems, and Automation Society ph: (919) web: Maintenance Technology Applied Technology Publications, Inc S. Grove Ave. Suite 105, Barrington, IL ph: (847) fax: (847) web: Power Industry Development web: Reliability Magazine 1704 Natalie Nehs Dr. Knoxville, TN ph: fax: web: Turbomachinery International A Publication of Business Journals, Inc. 50 Day Street Norwalk, CT , USA phone: (203) fax: (203) web: Vibrations A Publication of the Vibration Institute (see Professional Organizations above) Publications Basic Machinery Vibrations Ronald L. Eshleman, Ph.D.,P.E. VIPress, Incorporated ISBN Shock and Vibration Handbook Cyril M. Harris McGraw-Hill, Inc. ISBN PCB IMI SM Sensors Division toll-free FAX imi@pcb.com Website 119

138 Selection and Implementation of Industrial Accelerometers SELECTION AND IMPLEMENTATION OF INDUSTRIAL ACCELEROMETERS OVERVIEW Measuring, monitoring, analyzing, and trending machinery vibration data have become widely used methods for detecting faults and diagnosing the health of bearings, gears, and other rotating machinery components. One of the key elements that has made these techniques so successful in today's condition based monitoring and predictive maintenance programs is the industrial accelerometer. These sensors are extremely rugged, provide a wide dynamic range, and are designed to operate under a variety of harsh conditions, including dirt, oil, submersion, high temperature, cryogenic temperature, and electromagnetic noise. Since critical machinery comes in many configurations and operating speeds, a wide selection of industrial accelerometers are available to suit the individual installation and sensing requirements. This section provides an overview of the selection and installation recommendations for industrial accelerometers to ensure accurate measurements and ultimately a successful machinery monitoring program. SENSOR SELECTION In order to perform adequately, each sensor must be able to accurately measure the vibration frequencies and amplitudes of interest, in the desired units of measure. An evaluation of measurement units, amplitude range, frequency range, and environmental factors is necessary to ensure acceptable sensor performance. In addition, the system in which the sensor is to be used must be evaluated. Issues such as whether the sensor will be permanently installed or roved about; connected to a data collection instrument, FFT analyzer, PLC, or alarm system; whether excitation power is available from the readout instrument or if a separate signal conditioner is required; whether voltage signals, current signals, velocity units, or acceleration units will be monitored; and whether hazardous area approvals are necessary are among the key concerns that must be understood. In addition, interconnecting cables must also endure the environment and a plan for routine maintenance, testing, and calibration of the equipment must be considered. SELECT A VIBRATION UNIT OF MEASUREMENT Ascertain which measurement units best represent the vibration 120 changes that are to be detected. Quite often, this decision is based upon historical data or common practice that may already be in place at the facility. Vibration may be represented with acceleration, velocity, or displacement units of measure. Industrial accelerometers generate an output signal that is proportional to acceleration over a very broad frequency range. Often, this acceleration signal is electronically integrated into velocity units of measure by the data collection or readout instrument. Velocity measurement units provide a greater level of amplitude change at most machinery frequencies of interest, whereas acceleration measurements are more weighted at higher frequencies. Should an electronic integrator be unavailable, it may be desirable to use an industrial vibration sensor with a built-in integration circuit, which generates an output signal directly proportional to applied velocity. Additionally, vibration sensors are available with on-board temperature sensors, which provide a simultaneous output signal proportional to machine surface temperature. The temperature signal is used to provide an extra level of protection and warning, primarily for bearing monitoring applications. EVALUATE THE MEASUREMENT PARAMETERS AND SENSOR CAPABILITIES The selected sensor must be capable of responding to the vibration to be measured, which will have associated with it a frequency range of interest, in cpm or Hz, as well as a minimum and maximum amplitude range, in g (mm/s 2 ) acceleration, or in/sec (mm/sec) velocity. The low frequency range is derived from the slowest turning speed of the machine and any sub-harmonics associated with its operation, including any coupled reduction gear, pulley speed, and any other related drive train or transmission factors. The high frequency of interest will be attributed to maximum machine running speed, number of rolling element bearings, gear mesh, and high frequency harmonics. The acceptable operating levels of vibration amplitude must be determined in order to establish alarm or concern limits. This is often obtained through historical data, machinery manufacturer, or industry guideline. A low cost, portable vibration meter may be used to help establish acceptable vibration levels for machinery that is in satisfactory operating condition. Most vibration sensors will respond to amplitudes well beyond acceptable vibration limits, however, for very low frequency and low amplitude vibration measurements, it is important to verify that the noise floor of the sensor is low enough to accommodate HOUR SENSORLINE SM WEBSITE

139 Selection and Implementation of Industrial Accelerometers an accurate, low-level vibration measurement. ENSURE SENSOR SURVIVABILITY AND ACCURACY Once the vibration measurement parameters are understood, a thorough understanding of the environment, in which the sensor is to be used, is necessary. Many factors must be considered, including: temperature extremes, temperature transients, dirt, oil, moisture, humidity, structural bending and strain, electromagnetic interference, radio frequency interference, ground loop potential, electrostatic discharge, exposure to harsh chemicals, exposure to high amplitude shock pulses, high frequency resonance, and radiation. For hazardous areas involving combustible vapors and dust, sensors carrying intrinsic safety approvals are available. Fortunately, most IMI sensors incorporate design features, which help guard against many of these factors, however, before selecting any vibration sensor, the user should verify that the sensor under consideration will survive all environmental influences. The following highlights some of the important design features and benefits of IMI's vibration sensors. Shear structured sensing elements - All IMI vibration sensors utilize either quartz or ceramic piezoelectric sensing crystals that are stressed in a shear mode to generate their output signal. Whether these are annular shear or tri-shear elements, the benefits are the same. Shear structured elements are less susceptible to the effects of thermal transients, transverse motion, base bending, and case strain than other designs. This translates to fewer errors being introduced into the measurement signal. Typical shear structured industrial vibration sensor Ceramic versus quartz sensing elements - Most IMI vibration sensors utilize a ceramic sensing element, which offers the greatest signal-to-noise ratio due to excellent resolution characteristics. However, when vibration amplitudes are high enough, such that noise floor is not a concern, sensors utilizing quartz-sensing crystals should be considered. Quartz sensors are much more stable over time, meaning that their output sensitivity rarely shifts, and recalibration is not as critical. Also, quartz sensors are less susceptible to thermal transient errors as are ceramic sensors. Where it is difficult to remove a permanently installed sensor for routine calibration purposes, use a sensor with a quartz-sensing element, if possible. Laser welded, hermetically sealed construction - To guard against the influx of moisture, dirt, or oil, all IMI vibration sensors are precision laser welded to provide a true hermetic seal. Each sensor is then leak tested for assurance. This ensures sensor survivability and performance even in adverse factory or field conditions, underwater, or during wash down situations. Stainless steel housings - All IMI vibration sensors utilize this proven material, which stands up against many corrosive chemicals. IMI uses non-magnetic stainless steel, which provides shielding and averts errors due to electromagnetic fields that may be present when operating on or near electric motors. Rugged MIL-spec hermetic connectors - Industrial accelerometers wouldn't be industrial strength if they used anything less than a rugged, military style connector or heavy-duty integral cable. Don't jeopardize your testing program with a sensor that has a flimsy cable or connector whose pins might easily get bent or broken. Internal shielding - EMI, ESD, RFI, and ground loops are undesirable in any measurement scenario. All IMI vibration sensors incorporate an internal shield, which provides electrical case isolation, to minimize any chance of noise introduction or data corruption due to EMI, ESD, RFI and ground loops. Sealed, integral cables - Although each IMI vibration sensor is hermetically sealed, electrical connections are subject to being shorted out, if submerged in conductive fluid. Units with sealed, integral cables eliminate the potential of an exposed electrical connection and permit operation under submerged or wash down conditions. Polyurethane cables are best for submerged situations, whereas Teflon cables are more resistant to adverse chemicals and high temperatures. IMI SENSORS DIVISION TOLL-FREE

140 Selection and Implementation of Industrial Accelerometers PERMANENT MOUNT VS. ROUTE BASED Once the measurement requirements and environmental factors are fully understood, one must decide whether the sensor will be permanently installed to the machine or temporarily mounted for purposes of a route based data collection scenario. If the sensor is roved about for route based data collection, it must be capable of performing adequately and able to survive all of the environmental influences for every collection point of the route. Several sensors may be necessary to accommodate a wide variety of requirements along a route. Permanently installed sensors need to survive the one environment that they are placed in, however, this typically is more demanding, since the location may be inaccessible for a route based scenario, due to temperature or other extremes. Permanently installed sensors may be connected to a junction box where route based measurements are periodically taken or they may be implemented into a continuous monitoring system. Most machinery monitoring programs compare successive vibration measurements taken at the same point for trending purposes. With permanently installed sensors, this is accomplished with the same sensor at the same location every time. When the sensor is permanently installed, it is practical to use a sensor that has undergone less stringent qualification testing, and may have a wider sensitivity tolerance, since successive measurements will still accurately indicate trends. For roving measurements, a sensor with a tight sensitivity tolerance is recommended since, if the sensor is changed, there will be less measurement shift due to sensor performance. The point is that any change in measurement data must be attributed to a change in machinery vibration, not a change in sensor characteristic or other factor. SENSOR CALIBRATION AND PERFORMANCE Every IMI sensor is supplied with calibration data that is traceable to NIST, however, some sensors are supplied with more data than others. The reason for this is cost. A single point calibration provides an output sensitivity value at only one reference frequency, which is typically 100 Hz (6000 cpm). This single point calibration is provided for all low cost sensors that are recommended for permanent installation. A full calibration provides an entire frequency response plot over much of the sensor's specified frequency range. The full calibration typically spans from 10 Hz (600 cpm) to the upper 5% deviation frequency, and is provided for all precision sensors that are recommended for roving, route-based data collection 122 requirements, frequency analysis and machinery diagnostic purposes. Typical certificate including full calibration data Low cost industrial vibration sensors may also have a wider tolerance on their nominal sensitivity, which can be as much as 20% or more. This simply means that one specific unit can have somewhat of a significant difference in output when compared to another unit of the same model. For example, if there is a ±20% sensitivity tolerance on a 100 mv/g model, the actual sensitivity of any unit could be anywhere from 80 mv/g to 120 mv/g. This could be of concern if different units are used for conducting successive measurements at the same measurement point using the nominal sensitivity value. The resulting measured data could shift by as much as ±20% due to sensitivity tolerance and would contribute to measurement error if this were perceived as a change in vibration amplitude. Note, however, that measured data obtained when using the actual, supplied sensor sensitivity will negate the wide tolerance of accuracy obtained when using the nominal, catalog sensitivity value. Although low cost sensors are not tested as stringently as precision sensors, their measurement results are just as accurate when used as recommended. Another important, inherent characteristic that makes this possible is repeatability. All IMI vibration sensors are extremely repeatable, as are most piezoelectric sensors. Design factors that contribute to this property include a rigid sensing structure, no moving parts, and solid-state circuitry. Repeatability is probably the single most important requirement when conduct HOUR SENSORLINE SM WEBSITE

141 Selection and Implementation of Industrial Accelerometers ing comparative measurements for trending purposes, which is why piezoelectric industrial vibration sensors have become the sensors of choice for condition based monitoring and predictive maintenance applications. A low cost unit used for successive measurements at the same measurement point will yield vibration trend information that is just as accurate as if a precision sensor were used. Precision sensors, supplied with full calibration data, are better suited for roving, route-base data collection requirements, frequency analysis and machinery diagnostic purposes. These applications will typically demand a tighter sensitivity tolerance for point-to-point measurement accuracy and potentially require frequency compensated measurements for greater analysis and diagnostic accuracy. Precision sensors typically feature a sensitivity tolerance of ±5% and by referring to the provided full frequency response plot, exact sensitivity at any frequency can easily be determined. All sensors, whether permanently installed or used for roving measurements, should be periodically calibrated. The use of a hand-held shaker provides a convenient, rapid technique for checking sensor sensitivity either in the lab or at the installation point. Should a measurement ever be considered to be suspicious, it is good practice to monitor the full signal transmission path, or replace the sensor, to determine if the sensor, cabling, or signal conditioning equipment is at fault. MOUNTING CONSIDERATIONS There are several methods for securing vibration sensors to machinery. These include stud mounting, adhesive mounting, and magnetic mounting. Additionally, the use of a probe tip may be useful for very inaccessible measurement points, for locations where physical attachment of a sensor is just not practical, or for determining installation locations where vibration is most prevalent. Effect of mounting technique on resonant frequency Stud mounting is considered to be the best technique in terms of being able to achieve the maximum attainable frequency range. All sensor specifications and calibration information supplied with the sensor are based upon stud mounting during qualification tests. For best results, a smooth, flat surface should be prepared on the machinery surface as well as a perpendicular tapped hole of proper dimension. Spot face tools are available to simplify surface preparation. A thin layer of silicone grease or other lubricant should be applied to the surface and the sensor should be installed with the recommended mounting torque. Be sure to follow all installation recommendations supplied with each specific sensor model. If drilling and tapping mounting holes into machinery structures is not practical, adhesive mounting is the next best technique. Sensors may be secured directly with adhesive or a mounting pad with suitable tapped hole may be adhesively attached or welded to the machinery surface. The sensor can then be stud mounted to the attached mounting pad. Each method will affect the frequency response attainable by the vibration sensor since the mounted resonant frequency of the sensor/hardware assembly will be dependent upon its mass and stiffness. The following diagram depicts how resonant frequency is affected by each mounting technique. IMI SENSORS DIVISION TOLL-FREE

142 Selection and Implementation of Industrial Accelerometers Magnetic mounting is considered temporary and is widely utilized for roving, route-based data collection scenarios. For non-magnetic machinery, steel, target locator pads, to which the magnet will be attracted, may be welded or adhesively attached to the machine. The use of a target locator pad also helps insure that periodic vibration measurements are always taken at the same location. Caution should be exercised when applying magnetic mounted sensors to machinery surfaces. To avoid excessive shock, one should gently roll the sensor into place. Never allow the magnet to impact against the structure as this may damage the sensor. Additional mounting hardware may be required for special mounting scenarios. Mounting blocks are available for mounting 2 or 3 sensors into a biaxial or triaxial array. Mounting stems are available for installation between the cooling fins of electric motors. Quick connect systems permit rapid stud mounting from point to point for route based data collection. For a qualified recommendation, discuss any unique mounting requirements with an application engineer. INTERCONNECT CABLES Twisted, two-conductor, shielded cable is recommended for transmitting measurement signals from industrial vibration sensors to readout, recording, data collection, and analysis instruments. This type of cable offers the best shielding from EMI, RFI, ESD, and other noise influences. Since all IMI industrial vibration sensors are insulated from ground, ground loop problems are easily avoidable. The shield of the cable should be drained to ground at only the instrumentation end, and remain floating at the sensor end. To conserve costs, coaxial cables may be used, however, there may be a sacrifice in the form of noise corruption. Materials of construction for cables should be selected to insure survivability in the environments in which they are used. Teflon cables are suitable for high temperature use or where exposure to harsh chemicals is of concern. Sealed, integral cables should be used for sensors that are submerged or installed in areas of high humidity or subjected to wash down. Armored cables offer additional protection from being stepped on, rolled over, or suffering nicks and cuts associated with machining debris and flying metal chips. CONCLUSION A successful condition based monitoring or predictive maintenance program is heavily dependent upon accurate, repeatable vibration measurements of critical machinery. Piezoelectric industrial accelerometers have become the sensors of choice for providing such measurements in both permanently installed applications and for roving, route based measurements. Many factors need to be considered for proper selection of vibration sensors including: the ability of the sensor to respond accurately to vibration frequencies and amplitudes of interest in the desired units of measure; survivability and accurate functionality of the sensor in the operating environment, determination as to whether the sensor will be permanently installed or roved about; technique used for attaching the sensor to the machine surface; amount of calibration information supplied with the sensor; whether hazardous area approval is required; the type of cables used to connect to the sensors; and a plan for maintaining, testing and calibrating sensors. A variety of sensor mounting techniques is available, however each has an impact on the frequency range capability of the measurement system. Interconnect cables should be selected to minimize effects of EMI, RFI, and ESD and be capable of surviving the environment in which they are used. A close evaluation of the machinery operating conditions, a well-conceived approach to vibration monitoring, and a detailed analysis of sensor performance characteristics will all lead to a more successful condition based monitoring or predictive maintenance program HOUR SENSORLINE SM WEBSITE

143 Accelerometer Design and Operating Characteristics MECHANICAL CONSTRUCTION OF INDUSTRIAL PIEZOELECTRIC ACCELEROMETERS Accelerometers are transducers that are designed to produce an electrical output signal that is proportional to applied acceleration. Several sensing technologies are utilized to construct accelerometers, including, strain gage, piezoresistive, capacitive, and piezoelectric. Strain gage, piezoresistive, and capacitive types possess the ability to measure constant acceleration, such as that of earth's gravity, whereas piezoelectric types can only accurately measure an acceleration that changes, such as that encountered with vibration. IMI Sensors manufactures both piezoelectric and capacitive industrial accelerometers. Piezoelectric types are recommended for most every industrial vibration application on rotating machinery. Capacitive types are reserved for extremely low frequency measurements, such as that encountered with massive, slow-speed rollers. Many applications for accelerometers exist in the research and development sector on everything from computer disk drive mechanisms to automobiles to advanced weapons systems. The primary focus for conducting acceleration measurements in R&D applications is to minimize vibration experienced, or delivered, by an object in order to extend service life, improve efficiency, or improve user comfort. Applications for accelerometers in the industrial sector however, are primarily focused on extending service life of machinery by predicting failures, thus allowing maintenance to be conducted in a planned manner. By doing so, operators can make more intelligent decisions about spare parts purchases and keep critical equipment up-and-running longer and faster to increase product output and profitability. Piezoelectric accelerometers are ideal for industrial vibration monitoring applications. They can be made durable, protected from contamination, impervious to extraneous noise influences, and are easy to implement. Accelerometers that are designed with these features are classified as Industrial Accelerometers, i.e. suitable for use in rigorous industrial, field, or submersible environments. The sensing element of a piezoelectric accelerometer utilizes a polarized ceramic material or quartz crystal. Quartz is a natural piezoelectric material and has the advantages of long-term stability, repeatability, and is non-pyroelectric, i.e. does not generate an output signal with change in temperature. Ceramic materials, on the other hand, have the advantages of higher temperature operation, and higher output signal - leading to a superior signal-to-noise ratio. Both quartz and ceramic types are available with or without built-in signal conditioning electronics. Typically, the only reason not to use an industrial accelerometer with built-in electronics is when an extremely high temperature environment (>325 F (162 C)) would damage the internal circuitry. Otherwise, accelerometers with built in electronics, termed IEPE (Integrated Electronic PiezoElectric) or PCB's trademarked ICP (Integrated Circuit Piezoelectric) designation offer superior ease of use, lower system cost, and greater distance signal transmission capability. Industrial ICP accelerometers may also incorporate additional features, such as a built in temperature sensing circuitry, integration circuitry to convert to velocity units of measure, transmitter circuitry to generate a 4 to 20 ma output signal, and TEDS (Transducer Electronic Data Sheet) circuitry - an on-board, addressable memory with stored, self-identifying information. The piezoelectric material within an accelerometer is structured in a manner, which causes the material to undergo stress when under the influence of acceleration. This stress causes an electrical output that is linearly proportional to acceleration. The stress is achieved by placing a seismic mass in intimate contact with the piezoelectric material. Since F=ma, any force applied to the piezoelectric material will be proportional to the seismic mass and the applied acceleration. Since the seismic mass is constant, the force, and resultant electrical output signal, becomes directly proportional to the applied acceleration. There are several methods in which to stress the piezoelectric material with the seismic mass. These methods are categorized in following terms that define the geometry of the sensing element - compression, flexural, and shear. Each has advantages and disadvantages that are highlighted as follows: IMI SENSORS DIVISION TOLL-FREE

144 Accelerometer Design and Operating Characteristics Compression - permits compact construction, high stiffness, high durability, and high resonant frequency. Susceptible to inputs from base strain caused by thermal transients and mounting on thin-walled structures. Shear mode accelerometer 126 Compression mode accelerometer Flexural - generates higher output signals and is less susceptible to inputs from base strain. Lower resonant frequency and more fragile. Flexural mode accelerometer Shear - permits compact construction, good stiffness, good durability, and reasonable resonant frequency. Less susceptible to inputs from base strain and thermal transients. Piezoelectric crystal Signal conditioning electronics Seismic mass Preload retaining ring For best overall performance in industrial machinery vibration applications, IMI utilizes, almost exclusively, the shear structured geometry for its piezoelectric industrial accelerometers. Only one, ultra-high-output, low frequency unit is offered that utilizes a flexural geometry. Compression geometries, although still utilized for some R&D applications, have been superseded by the shear type for industrial applications, primarily due to the thermal transient induced base strain error susceptibility of compression designs, particularly at low frequencies. This low frequency error, or drift, causes what is commonly termed "ski slope" error, which becomes evident when acceleration signals are integrated into velocity signals. Volume production of shear style accelerometers has also reduced their cost to a level acceptable to the industrial market, further benefiting their use. Industrial accelerometers have to endure severe environments and tough operating conditions. In order to achieve these requirements, there are several design and construction characteristics that demand awareness. In selecting an accelerometer for use in an industrial environment, ensure that the unit meets these design criteria: Welded, stainless steel housing - All IMI accelerometers are constructed from stainless steel. This proven, corrosive resistant material stands up well against dirt, oil, moisture, and harsh chemicals. Stainless steel is also non-magnetic, which minimizes errors induced when used in the vicinity of electric motors and other sources of electromagnetic interference. For durability, all mating housing parts are precision laser welded. No epoxies are used which can eventually fatigue or cause leaks. Internal faraday shield - All IMI accelerometers utilize an internal electrical shield to guard against ESD, RFI, EMI, and other extraneous noise influences. The result is an HOUR SENSORLINE SM WEBSITE

145 Accelerometer Design and Operating Characteristics electrically, case-isolated sensing element that is insulated from ground, which also insures that there will be no ground loops in the measurement system that can cause signal drift, noise, and other hard-to-trace electrical problems. Durable, military style electrical connectors or sealed, integral cables - IMI's electrical connectors offer a true hermetic seal with glass-to-metal fusing of connector pins and shells. All connectors are laser welded to the sensor housing. Sensors with integral cables incorporate hermetic feed through pins and high-pressure, injectionmolded sealing of the cable to a metallic shell that is laser welded to the sensor housing. Integral polyurethane jacketed cables offer 750 psi submersibility along with excellent pull strength and strain relief characteristics. Interconnect cables should utilize shielded, twisted, conductor pairs and an outer jacket material that will survive exposure to any media, or excessive temperatures present in the environment in which it will be used. Stainless steel, armored cables are recommended for installations where machined debris or chips may damage cable jackets, or where cables have the potential of being stepped on or pinched. Electrical connectors for cables are offered in a variety of styles and configurations to suit the application. Take care to note the temperature rating of the connector and material of construction. Environmentally sealed cable connectors provide a boot to protect the integrity of the connection in outdoor installations or during wash down episodes IMI SENSORS DIVISION TOLL-FREE

146 Accelerometer Design and Operating Characteristics ELECTRICAL CHARACTERISTICS AND OPERATION OF INDUSTRIAL ICP ACCELEROMETERS What is an ICP Accelerometer? Accelerometers are transducers that are designed to produce an electrical output signal that is proportional to applied acceleration. Industrial ICP accelerometers rely on the piezoelectric effect of quartz crystals or polarized ceramics as the transduction mechanism for converting mechanical forces into a proportional electrical signal. As crystals are stressed, charged ions accumulate at their surfaces. Electrodes that are in intimate contact with the crystals collect these ions, which result in an electrical signal. The signal is then transmitted via a small wire to a signal conditioning circuit that is positioned within the accelerometer's housing. The signal conditioning circuit serves to convert the difficult to use, high-impedance, charge signal from the crystal into a low-impedance, voltage signal that can be transmitted outside of the accelerometer housing, over a relatively long distance, without degradation. This low-impedance voltage signal can then be interrogated by data collection equipment, displayed on an oscilloscope, stored on a recording instrument, or analyzed with a data acquisition system or FFT analyzer. This type of accelerometer is generically termed an IEPE accelerometer for Integrated Electronic PiezoElectric, or with PCB's trademark ICP accelerometer for Integrated Circuit Piezoelectric. capitalizes on the inherent electrical characteristics of the particular sensing element to create a sensing device with optimized performance. Additional circuitry may be added to enhance or tune the output signal for specific purposes. Such enhancements include filtering, rms conversion, 4-20 ma transmitters, integrators, and TEDS (Transducer Electronic Data Sheet - an on-board, addressable memory with stored, self-identifying information). Piezoelectric crystal Signal conditioning electronics Preload retaining ring Shear structured ICP accelerometer Seismic mass How are accelerometer signals conditioned with built-in electronics? The heart of the signal conditioning circuitry within IMI Sensors' ICP industrial accelerometers is a transistor. This transistor may be a JFET or MOSFET type, depending on the style of circuitry that is desired. The circuitry may take the form of a voltage amplifier, or a charge amplifier, depending on the sensor. Typically, voltage amplifiers are used with quartz crystal sensing 128 elements, whereas charge amplifiers are used with piezoelectric ceramic sensing elements. Each type of circuit Schematic of voltage amplified and charge amplified ICP accelerometer What kind of electrical signals are generated by an ICP accelerometer? As stated above, mechanical forces applied to the piezoelectric material generate a proportional electrical signal. If this force is positive going, then a positive electrical signal is generated. If this force is negative going, then a negative electrical signal is generated. Note that reversing the orientation of the crystals can reverse the output polarity. Regardless of polarity, this negative and positive going signal is delivered to the integrated signal conditioning circuit. Since the integrated, transistorized circuit is an active electrical device, excitation power is required to achieve operation. Typical excitation HOUR SENSORLINE SM WEBSITE

147 Accelerometer Design and Operating Characteristics power for an ICP accelerometer is a positive voltage of 24 VDC, which is regulated to a constant current value of 4 ma. Since, by design, the integrated signal conditioning circuit is energized with only a positive voltage, it cannot deliver an output signal that swings negatively. To overcome this obstacle, the circuit is designed to operate at an elevated DC bias voltage. The negative electrical signal generated by the piezoelectric material will swing negatively from this elevated DC bias voltage toward zero, whereas the positive electrical signal generated by the piezoelectric material will swing positively from this elevated DC bias voltage toward the excitation voltage of 24 VDC. ranged for a ± 5 volt output swing to be well within this range. Should the sensor be driven beyond its normal range, signal distortion or clipping can occur which will lead to measurement error. This error condition is also known as "running out of headroom". Note that some sensors are designed to operate at lower bias levels and / or be powered from a lower excitation voltage. Either situation will result in a sensor that has less than the typical x± 5 volt output swing, i.e. less headroom. Here are typical accelerometer sensitivities, along with their ± 5 VDC output ranges: Sensitivity ± 5 VDC output range 1 mv/g ± 5000 g 10 mv/g ± 500 g 100 mv/g ± 50 g 1000 mv/g ± 5 g 10,000 mv/g ± 0.5 g This relationship can be calculated for any sensitivity using the following: where: 5000 S = o.r. S = Sensitivity (mv/g) o.r. = output range (g) for ± 5 VDC How do ICP accelerometers respond to step input accelerations and low frequency vibrations? V B = Sensor Bias Voltage of 10 VDC V s1 = Supply Voltage 1 = 24 VDC V E1 = Excitation Voltage 1 = V s1-1 = 23 VDC V s2 = Supply Voltage 2 = 18 VDC V E2 = Excitation Voltage 2 = V s2-1 = 17 VDC Maximum Sensor Amplifier Range = ± 10 volts Effect of excitation voltage on dynamic range (headroom) The bias voltage from sensor to sensor may vary but is typically within a range of 8 to 12 VDC. Allowing for a 2 volt consumption by the circuitry, a minimum of 6 volts will remain to accommodate the signal excursion about the bias voltage. Most industrial ICP accelerometers are Piezoelectric accelerometers are AC coupled devices. As such, they are unable to provide a constant output signal with respect to a constant acceleration, such as the 1 g gravitational acceleration of the earth. If exposed to a step function of constant acceleration, the output of a piezoelectric accelerometer will initially follow the rise in acceleration amplitude, but then the output signal will decay back to zero. This decay occurs exponentially and at a rate that is governed by the value of the discharge time constant according to the following equation: where: q = Qe (-t/rc) q = instantaneous charge (pc) Q = initial quantity of charge (pc) R = bias (or feedback) resistor value (ohm) C = total (or feedback) capacitance (pf) t = any time after t 0 (seconds) e = base of natural log (2.718) IMI SENSORS DIVISION TOLL-FREE

148 Accelerometer Design and Operating Characteristics The longer the discharge time constant is, the longer it takes for the decay to be completed. During the initial period of decay however, there is a short period of time when the output signal of the accelerometer is representative of the constant value of acceleration "within a reasonable acceptable error". Consequently, once a "reasonable acceptable error" is established, limits can be calculated, which determine the rate-of-change of acceleration required in order to stay within the acceptable error. These limits become the slowest rate of acceleration change, which is specified as the low frequency range of the accelerometer. Accelerometers with longer values of discharge time constant will have a lower frequency range capability. Many accelerometers are specified with several low frequency ranges, along with their corresponding typical error values of 5%, 10%, and 3 db. When measuring reciprocating or cyclic acceleration, as is encountered with vibration, ensure that the low frequency range of the accelerometer meets the measurement frequency range of interest, within the reasonable acceptable error. How do ICP accelerometers respond to highfrequency vibrations? Piezoelectric industrial accelerometers are very rigid structures that conform to a single ssdegree-of-freedom system. As such, their resonant frequency can be calculated from the relationship: where: f n = ω 2π = 1/2π k/m f n = the natural (resonant) frequency ω = angular frequency in radians k = force / deflection (stiffness) m = mass This shows that resonant frequency is decreased as accelerometer mass is increased. Rule-of-thumb permits accurate operation (within a + 5% sensitivity deviation) to approximately one-fifth of the mounted resonant frequency. Response to higher frequencies will be represented with a greater increased sensitivity deviation, which becomes very substantial at the resonant frequency. Some ICP accelerometers incorporate built-in, low-pass filters to attenuate the mechanical gain induced at higher frequencies. This filtering may be especially desirable for accelerometers that are used on rotating equipment that is coupled 130 to a variety of components operating at a variety of frequencies. For example, a high frequency gear mesh could introduce vibration that might cause saturation of an accelerometer that is attempting to measure a relatively lower frequency bearing vibration on the same drive train. The following shows a typical, frequency response plot for an industrial ICP accelerometer. Sensitivity Deviation vs Frequency It is important to understand both the frequency range of measurement interest and frequency range for the accelerometer to be used for the application. If an accelerometer is selected that does not have adequate frequency range, measurement accuracy and ability to detect machinery faults will be compromised. What is settling time? Settling time is specified as the duration of time required for the accelerometer to achieve a stable output signal within 1 percent of the specified bias voltage. Another term used to describe this is warm-up time. Settling time becomes a concern especially when acquiring data through a switch box, with a data collector that is providing excitation power to the accelerometer. The settling time is the minimum time that the data collection technician must wait before capturing any data. During the settling time, the output signal of the accelerometer will drift from the open circuit supply voltage, down to the bias voltage. This drift can introduce error in a measurement signal as it will be perceived as low frequency measurement data by the data collection or analysis equipment HOUR SENSORLINE SM WEBSITE

149 Accelerometer Design and Operating Characteristics POWERING ICP ACCELEROMETERS All ICP sensors require a constant current power source for proper operation. A typical sensing system includes an ICP sensor, ordinary two conductor cable and a basic constant current power supply. for proper operation.) Except for special models, standard ICP sensors require a minimum of 2 ma for proper operation. Constant Current Diode Typical ICP Sensor System The signal conditioner consists of a well-regulated 18 to 30 VDC source (battery or line-powered), a current-regulating diode (or equivalent constant current circuit), and a capacitor for decoupling (removing) the bias voltage from the measurement the signal. The voltmeter, V M monitors the sensor bias voltage (normally 8 to 12 VDC) and is useful for checking sensor operation and detecting open or shorted cables and connections. The current-regulating device is used in place of a resistor for several reasons. The very high dynamic resistance of the diode yields a source follower gain which is extremely close to unity and independent of input voltage. Also, the diode can be changed to supply higher currents for driving long cable lengths. Constant current diodes, as shown in Figure 2, should be used in ICP signal conditioners. (The correct orientation of the diode within the circuit is critical Present technology limits this diode type to 4 ma maximum rating; however, several diodes can be placed in parallel for higher current levels. All line-powered signal conditioners should use higher capacity (up to 20 ma) constant current circuits in place of the diodes, particularly when driving long signal cables (See page 132). Decoupling of the data signal occurs at the output stage of the signal conditioner. A 10 to 30 µf capacitor shifts the signal level to essentially eliminate the sensor bias voltage. The result is a drift-free AC mode of operation. Where do I find additional information? Further information about the operation of ICP and charge mode piezoelectric sensors can be obtained by requesting document PCB-G0001 or by visiting our websites: and IMI SENSORS DIVISION TOLL-FREE

150 Using the Bias Voltage as a Diagnostic Tool USING THE BIAS VOLTAGE AS A DIAGNOSTIC TOOL The bias voltage of an ICP sensor can be an effective diagnostic tool. Most ICP sensor signal conditioners, and data collection devices that supply ICP sensor excitation power, have some means for monitoring or displaying the sensor s turn-on bias voltage. These monitors can be in the form of a meter or diode. A segmented meter may be color coded to indicate the operation of the sensor. Red indicates a short circuit, green indicates normal operation, and yellow indicates an open circuit. These meters are simply voltage monitoring devices. The full scale of the meter is typically that of the excitation voltage supplied by the signal conditioner. Type of Fault Indicators ICP sensors are usually supplied with a certificate of calibration that reports their actual bias voltage. This voltage can differ slightly from sensor to sensor but will typically fall between 8 and 12 VDC. When properly energized by the signal conditioner, the sensor will turn on and settle out with the bias voltage being measurable at the sensor connector. The signal conditioner monitors this bias voltage and displays it with its meter or diode. If the sensor cable is not properly connected from the signal conditioner to the sensor, an open circuit condition will exist. If there is a short circuit in the cable or connector, a short circuit condition will exist. The bias voltage can give clues to assist with troubleshooting system performance and to zero in on the root cause of a problem. material. Inspect the cable and see if it has been pinched or kinked. Wiggle the cable around while viewing the fault meter and see if any fluctuation out of the red can be seen. Disconnect the cable from the signal conditioner. The fault meter should read yellow, or open circuit. If there is no way to maintain a open circuit with just the sensor cable connected to the signal conditioner, then the cable is at fault and should be discarded or repaired. If an open circuit condition is encountered, check the sensor cable connections at the sensor and signal conditioner to ensure that they are proper and tight. If this does not resolve the condition, remove the sensor and short out the cable connector with a piece of wire, paper clip or other metal object. The meter should go to red, or short circuit. If it does not, then there is a discontinuity in the cable and it should be discarded or repaired. If the cable checks out okay, yet an open circuit condition still exists, then there may be a problem with the sensor. Try another sensor on the same cable to verify if this may be the case. Never try to troubleshoot the sensor with any other electronic device than the fault meter provided on the signal conditioner. VOM s may subject the sensor to improper voltage or unregulated current and cause permanent failure. If a bias monitoring meter is unavailable, you may with to tee off the measurement signal and look at the bias voltage with a voltmeter. Here are a few tips which will help to troubleshoot a measurement system: If a short circuit condition is encountered, disconnect the sensor cable and examine all electrical connectors for metal burrs, or other foreign objects, that may be causing the connector pins to short out to each other. If the shorted condition exists with only the sensor cable connected to the signal conditioner (no sensor connected) then the 132 cable is at fault. Again, inspect the connectors for foreign Teeing the Measurement Signal to Monitor the Bias By teeing off the input into a DC volt meter, the bias voltage can be measured HOUR SENSORLINE SM WEBSITE

151 Mounting Techniques MOUNTING TECHNIQUES 1.0 Installation Overview When choosing a mounting method, both the advantages and disadvantages of each technique should be closely considered. Characteristics such as location, ruggedness, amplitude range, accessibility, temperature and portability may be extremely critical. However, often times the most important and overlooked consideration is the affect the mounting technique will have on the high frequency operating range of the accelerometer. Shown below are six possible mounting techniques and their affect on the response of a typical piezoelectric accelerometer. (Note that not all of the mounting methods may apply to your particular sensor.) By examining the mounting configurations and corresponding graph, it can be seen that the high frequency response of the accelerometer may be compromised as mass is added to the system and/or the mounting stiffness is reduced. Note: Do NOT attempt mounting on curved, rough or uneven surfaces as the potential for misalignment and limited contact surface may significantly reduce the sensors upper operating frequency range : First, prepare a smooth, flat mounting surface, and then drill and tap a mounting hole in the center of this area according to the sensor s installation drawing provided. A precision machined mounting surface with a minimum finish of 63 µin (0,00016 mm) is recommended. (If it is not possible to properly prepare the machine surface, consider adhesive mounting as a possible alternative.) Be certain to inspect the area checking that there are no burrs or other foreign particles interfering with the contact surface : Wipe clean the mounting surface and spread on a light film of grease, oil or similar coupling fluid prior to installation. Adding a coupling fluid improves vibration transmissibility by filling small voids in the mounting surface. This consequently increases the mounting stiffness. For permanent mounting, substitute epoxy or other type of adhesive. Applying a thin film of grease 1.1.3: Hand tighten the sensor/mounting stud to the machine and secure the device by applying the recommended mounting torque. Effect of mounting technique on resonant frequency Note: The low frequency response is unaffected by the mounting technique. This roll-off behavior is typically fixed by the built-in sensor electronics. However, when operating AC coupled signal conditioners with readout devices that have an input impedance of less than 1 megohm, the low frequency range may be affected. It is important to use a torque wrench during this step as under torquing the sensor may not adequately couple the device, while over torquing may result in stud failure. 1.1 Stud Mount This mounting technique requires smooth, flat contact surfaces for proper operation and is recommended for permanent and/or secure installations. Stud mounting is also recommended when testing at high frequencies. IMI SENSORS DIVISION TOLL-FREE

152 Mounting Techniques 1.2 Adhesive Mount Adhesive mounting is often used for temporary installations or where the machine surface cannot be adequately prepared for stud mounting. Adhesives such as hot glue and wax work well for temporary mounts whereas two-part epoxies and quick bonding gels provide a more permanent mount : Clean surface thoroughly to rid of grease or oil, then place a small portion of adhesive on the under side of the sensor. Firmly press down on the top of the assembly to displace any adhesive. Be careful as excessive amounts of adhesive may make sensor removal difficult. Note: Adhesively mounted sensors often exhibit a reduction in high frequency range. In general, smooth surfaces and stiff adhesives will provide the best frequency response. Contact the factory for recommended epoxies Use of Separate Adhesive Mounting Base This method involves mounting a base to the machine surface and then securing the sensor to this base. This allows for easy removal of the accelerometer. Direct adhesive mounting of a sensor 1.3 Magnetic Mount Installation of an adhesive mounting base : Prepare a smooth, flat mounting surface. A minimum surface finish of 63 µin (0,00016 mm) generally works best : Stud mount the sensor to the appropriate adhesive mounting base according to the guidelines set forth in '1.1.2' and '1.1.3' of the Standard Stud Mount Procedure. Clean surface thoroughly to rid of grease or oil, then place a small portion of adhesive on the under side of the sensor. Magnetic mounting provides a convenient method for portable measurements and is commonly used for machinery monitoring and other portable or trending applications. Note: The correct choice of magnet and an adequately prepared mounting surface is critical for obtaining reliable measurements, especially at high frequencies. Poor installations can cause as much as a 50% drop in the sensor frequency range : Place a small portion of adhesive on the under side of the mounting base. Then, firmly press down on the assembly to displace any extra adhesive remaining under the base Direct Adhesive Mount For restrictions of space, mass and/or convenience, most sensors (with the exception of integral stud models) can be directly adhesively mounted to the machine surface : Prepare a smooth, flat mounting surface. A minimum surface finish of 63 µin (0,00016 mm) generally works best. 134 Methods of magnetically mounting Not every magnet is suitable for all applications. For example, rare earth magnets are commonly used because of their high strength. Flat magnets work well on smooth, flat surfaces, while dual-rail magnets are required for curved surfaces. In the case of non-magnetic or rough surfaces, it is recommended to first weld, epoxy or otherwise adhere a magnetic steel mounting pad to the test surface. This will provide a smooth and repeatable location for mounting HOUR SENSORLINE SM WEBSITE

153 Mounting Techniques 1.3.1: After choosing the correct magnet type, inspect the unit checking that the mounting surfaces are flat and smooth : Stud mount the accelerometer to the appropriate magnet according to the guidelines set forth in 'STEP 2' and '1.1.3' of the Standard Stud Mount Procedure : Prepare a smooth, flat mounting surface. A minimum surface finish of 63 µin (0,00016 mm) generally works best. Then, after cleaning the surface and checking for burrs, wipe on a light film of silicone grease, machine oil or similar type coupling fluid. Note: Carelessly magnetically mounting accelerometers has the potential to generate very high and potentially damaging 'g' levels. To withstand this abuse, be certain the sensor has built-in shock protection. If unsure, contact IMI. 1.4 Hand-held Probe Tip This method is NOT recommended for most applications. It is generally used only for machinery monitoring and other portable trending applications. Both the accuracy and repeatability at the low (<5Hz) and high frequency (>1000 Hz) ranges are questionable : Mount the magnet/sensor assembly to the prepared test surface by "rocking" or "sliding" it into place. How and how not to engage a magnetic mounted sensor DRILLING AND TAPPING INSTRUCTIONS To insure proper results, when possible, refer to the installation instructions that have been supplied for the specific sensor to be installed. The following instructions are provided as a convenience. IMI SENSORS DIVISION TOLL-FREE

154 Driving Long Cables DRIVING LONG CABLES Operation over long cables may affect the frequency response of ICP accelerometers, and introduce low frequency noise and high frequency distortion when an insufficient current is available to drive cable capacitance. Unlike charge mode systems, where the system noise is a function of cable length, ICP sensors provide a high voltage, low impedance output well-suited for driving long cables through harsh environments. While there is virtually no increase in noise with ICP sensors, the capacitive loading of the cable may distort or filter higher frequency signals depending on the supply current and the output impedance of the sensor. Generally, this signal distortion is not a problem with lower frequency testing within a range up to 1,000 Hz. However, for higher frequency vibration, shock or transient testing over cables longer than 500 ft., the possibility of signal distortion exists. The maximum frequency that can be transmitted over a given cable length is a function of both the cable capacitance and the ratio of the peak signal voltage to the current available from the signal conditioner according to: where: f (max) = πCV / (I c -1) f (max) = maximum frequency (hertz) C = cable capacitance (picofarads) V = maximum peak output from sensor (volts) I c = constant current from signal conditioner (ma) 10 9 = scaling factor to equate units Note that in this equation, 1 ma is subtracted from the total current supplied to sensor (Ic). This is done to compensate for powering the internal electronics. When driving long cables, Equation 1 shows that as the length of cable, peak voltage output or maximum frequency of interest increases, a greater constant current will be required to drive the signal. The cable driving nomograph provides a simple, graphical method for obtaining the expected maximum frequency capability of an ICP measurement system. The maximum peak signal voltage amplitude, cable capacitance and supplied constant current must be known or presumed. For example, when running a 100 ft. (30.5 m.) cable with a capacitance of 30 pf/ft, the total capacitance is 3000 pf. This value can be found along the diagonal cable capacitance lines. Assuming the sensor operates at a maximum output range of 5 volts and the constant current available from the power supply is 2 ma, the ratio on the vertical axis can be calculated to equal 5. The intersection of the total cable capacitance and this ratio result in a maximum frequency of approximately 10.2 khz. The nomograph does not indicate whether the frequency amplitude response at a point is flat, rising or falling. For precautionary reasons, it is good general practice to increase the constant current (if possible) to the sensor (within its maximum limit) so that the frequency determined from the nomograph is approximately 1.5 to 2 times greater than the maximum frequency of interest. Note that higher current levels will deplete battery-powered signal conditioners at a faster rate. Also, any current not used by the cable goes directly to power the internal electronics and will create heat. This may cause the sensor to exceed its maximum temperature specification. For this reason, do not supply excessive current over short cable runs or when testing at elevated temperatures HOUR SENSORLINE SM WEBSITE

155 Cable Driving Nomograph V I c - 1 (Ratio of Maximum Output Voltage from Sensor to Available Constant Current) Frequency (Hz) IMI SENSORS DIVISION TOLL-FREE

156 Conversions and Useful Formulas ACCELERATION acceleration of gravity (g) meters/second feet/second inches/second 2 feet/second meters/second 2 inches/second meters/second 2 FORCE kilogram (force) newtons 1.00 kilopond newton 105 dynes kilogram (force) ounce (force) pound (force) poundal PRESSURE newtons/sq. centimeter pounds/sq. inch pound (force) ounce (force) kilogram (force) newtons pounds/sq. foot inches of H 2 O N/m 2 (Pa) psi atmospheres bars inches of Hg inches of H 2 O mm of H 2 O mm of Hg N/cm N/m 2 (Pa) x 10-4 kg (f) mm 2 db (sound pressure-air) 20 log P/P o P o = x 10-6 psi TEMPERATURE Celsius to Fahrenheit F = 9/5 C +32 Fahrenheit to Celsius C = ( F 32) 5/9 Fahrenheit to Kelvin K = 5/9( F ) Fahrenheit to Rankin R = F COMMONLY USED PREFIXES G giga 10 9 M mega 10 6 k kilo 10 3 c centi 10-2 m milli 10-3 µ micro 10-6 n nano 10-9 p pico HOUR SENSORLINE SM WEBSITE

157 Article Reprints To order copies of the following articles, simply request the "AR" number preceding each article; just write or call the IMI Marketing Department at: (AR-1) Application of Integrated-Circuits to Piezoelectric Transducers, Paper P4-2 PHYMID 67. ICP Sensor - Basic operation & application/cornell Aeronautical Lab, R. W. Lally, (AR-3) Piezoelectric Analogies - Electrostatic vs. hydrostatic system. Piezoelectric vs. hydraulic circuit, R.W. Lally, (AR-4) Guide to ICP Instrumentation - Voltage vs. charge systems. Effect of coupling & time constant on response. Powering ICP system, R.W. Lally, (AR-9) Testing the Behavior of Structures, R.W. Lally, PCB Piezotronics (AR-18) Introduction to Piezoelectric Sensors - Basic accelerometer, pressure, and force sensor design considerations & typical applications, J.F. Lally, (AR-19) Calibration of Piezo Sensors - Calibration systems for dynamic pressure sensors, force sensors, and accelerometers with typical calibration results, J.F. Lally, (AR-28) Accelerometer Calibration: Is It Credible?, J.F. Lally, PCB Piezotronics (AR-33) Diagnosing Faults in Rolling Element Bearings - J. Charles Berggren, Monsanto Chemical Company (AR-40) Stability Considerations in Machinery Monitoring Vibration Instrumentation, D.M. Lally, PCB Piezotronics (AR-43) The Trouble with Cables, J.F. Lally, PCB Piezotronics (AR-59) Recommended Practices: Accelerometer Cable, Wiring, and Connections, J.F. Lally, PCB Piezotronics (AR-71) Reduction of the Ski Slope Effect When Integrating from Acceleration to Velocity, R.I. Lemieux, IMI (AR-72) Lower Accelerometer Cost By Reducing Calibration Requirements, E. Saller, IMI (AR-73) Design & Selection of Vibration Sensors, E. Saller, IMI (AR-74) Predicitive Maintenance at Tonawanda Forge, E. Saller, Gary Magaris, Kim Abernathey, Art Sauer (AR-75) Selecting Accelerometers for High Frequency Measurements, E. Saller and D. Brzezowski, IMI (AR-76) Continuous Condition Monitoring with Vibration Transmitters and Plant PLCs, E. Saller. IMI SENSORS DIVISION TOLL-FREE

158 Glossary of Terms Reprinted with permission from Application Note: AN 243-1, Effective Machinery Measurements Using Dynamic Signal Analyzers, Hewlett-Packard Company, Editing and additions performed by PCB Piezotronics, Depew, NY, Acceleration The time rate of change of velocity. Typical units are ft/s2, meters/s2, and G s (1G = ft/s2 = 9.81 m/s2). Acceleration measurements are usually made with accelerometers. Accelerometer Transducer whose output is directly proportional to acceleration. Most commonly use piezoelectric crystals to produce output. Aliasing A phenomenon which can occur whenever a signal is not sampled at greater than twice the maximum bandwidth of the signal. Causes high frequency signals to appear at low frequencies. Aliasing is minimized by filtering the signal to a bandwidth less than ½ the sample rate. When the signal starts at 0 Hz (baseband signals), bandwidth can be exchanged to maximum frequency in the definition above. Alignment A condition whereby the axes of machine components are either coincident, parallel, or perpendicular, according to design requirements. Amplification Factor (Synchronous) A measure of the susceptibility of a rotor to vibration amplitude when rotational speed is equal to the rotor natural frequency (implies a flexible rotor). For imbalance type excitation, synchronous amplification factor is calculated by dividing the amplitude value at the resonant peak by the amplitude value at a speed well above resonance (as determined from a plot of synchronous response vs. rpm). Amplitude The magnitude of dynamic motion or vibration. Amplitude is expressed in terms of peak-to-peak, zero-to-peak, or rms. For pure sine waves only, these are related as follows: rms = times zero-to-peak; peak-to-peak = 2 times zeroto-peak. DSAs generally read rms for spectral components, and peak for time domain components. Anti-Aliasing Filter Most commonly a low-pass filter designed to filter out frequencies higher than ½ the sample rate in order to minimize aliasing. Anti-Friction Bearing See Rolling Element Bearing. Asymmetrical Support Rotor support system that does not provide uniform restraint in all radial directions. This is typical for most heavy industrial machinery where stiffness in one plane may be substantially different than stiffness in the perpendicular plane. Occurs in bearings by design, or from preloads such as gravity or misalignment. Asynchronous Vibration components that are not related to rotating speed (also referred to as nonsynchronous). Attitude Angle (Steady-State) The angle between the direction of steady-state preload through the bearing centerline, and a line drawn between the shaft centerline and the bearing centerline. (Applies to fluid-film bearings.) Auto Spectrum (Power Spectrum) DSA spectrum display whose magnitude represents the power at each frequency, and which has no phase. 140 Averaging In a DSA, digitally averaging several measurements to improve accuracy or to reduce the level of asynchronous components. Refer to definitions of rms, time, and peak-hold averaging. Axial In the same direction as the shaft centerline. Axial Position The average position, or change in position, of a rotor in the axial direction with respect to some fixed reference position. Ideally the reference is a known position within the thrust bearing axial clearance or float zone, and the measurement is made with a displacement transducer observing the thrust collar. Balancing Resonance Speed(s) A rotative speed that corresponds to a natural resonance frequency. Balanced Condition For rotating machinery, a condition where the shaft geometric centerline coincides with the mass centerline. Balancing A procedure for adjusting the radial mass distribution of a rotor so that the mass centerline approaches the rotor geometric centerline. Band-Pass Filter A filter with a single transmission band extending from lower to upper cutoff frequencies. The width of the band is normally determined by the separation of frequencies at which amplitude is attenuated by 3 db (a factor ). Bandwidth The distance between frequency limits at which a band-pass filter attenuates the signal by 3 db. In a DSA, the measurement bandwidth is equal to [(frequency span)/(number of filters) x (window factor)]. Window factors are: 1 for uniform, 1.5 for Hanning, and 3.4 for flat top (P301) and 3.6 for flat top (P401). See flat top for more information. Baseline Spectrum A vibration spectrum taken when a machine is in good operating condition; used as a reference for monitoring and analysis. Blade Passing Frequency A potential vibration frequency on any bladed machine (turbine, axial compressor, fan, etc.). It is represented by the number of blades times shaft-rotating frequency. Block Size The number of samples used in a DSA to compute the Fast Fourier Transform. Also the number of samples in a DSA time display. Most DSAs use a block size of Smaller block size reduces frequency resolution. Bode Rectangular coordinate plot of 1x component amplitude and phase (relative to a keyphasor) vs. running speed. BPFO, BPFI Common abbreviations for ball pass frequency of defects on outer and inner bearing races, respectively. Bow A shaft condition such that the geometric centerline of the shaft is not straight. Brinneling (False) Impressions made by bearing rolling elements on the bearing race; typically caused by external vibration when the shaft is stationary. Calibration A test during which known values of the measured variable are applied to the transducer or readout instrument, and output readings varied or adjusted HOUR SENSORLINE SM WEBSITE

159 Glossary of Terms Campbell Diagram A mathematically constructed diagram used to check for coincidence of vibration sources (i.e. 1 x imbalance, 2 x misalignment) with rotor natural resonances. The form of the diagram is like a spectral map (frequency versus rpm), but the amplitude is represented by a rectangular plot, the larger the amplitude the larger the rectangle. Also known as an interference diagram. Cascade Plot See Spectral Map. Cavitation A condition which can occur in liquid-handling machinery (e.g. centrifugal pumps) where a system pressure decrease in the suction line and pump inlet lowers fluid pressure and vaporization occurs. The result is mixed flow which may produce vibration. Center Frequency For a bandpass filter, the center of the transmission band, measured in a linear scale. Charge Amplifier Amplifier used to convert accelerometer output impedance from high to low, making calibration much less dependent on cable capacitance. Coherence Measures how much of the output signal is dependent on the input signal in a linear and time-invariant way. It is an effective means of determining the similarity of vibration at two locations, giving insight into the possibility of cause and effect relationships. Constant Bandwidth Filter A band-pass filter whose bandwidth is independent of center frequency. The filters simulated digitally by the FFT in a DSA are constant bandwidth. Constant Percentage Bandwidth A band-pass filter whose bandwidth is a constant percentage of center frequency. 1/3 octave filters, including those synthesized in DSAs, are constant percentage bandwidth. Critical Machinery Machines which are critical to a major part of the plant process. These machines are usually unspared. Critical Speeds In general, any rotating speed which is associated with high vibration amplitude. Often, the rotor speeds which correspond to natural frequencies of the system. Critical Speed Map A rectangular plot of system natural frequency (y-axis) versus bearing or support stiffness (x-axis). Cross Axis Sensitivity A measure of off-axis response of velocity and acceleration transducers. Cycle One complete sequence of values of a periodic quantity. Damping The quality of a mechanical system that restrains the amplitude of motion with each successive cycle. Damping of shaft motion is provided by oil in bearings, seals, etc. The damping process converts mechanical energy to other forms, usually heat. Damping, Critical The smallest amount of damping required to return the system to its equilibrium position without oscillation. Decibels (db) A logarithmic representation of amplitude ratio, defined as 10 times the base ten logarithm of the ratio of the measured power to a reference. dbv readings, for example, are referenced to 1 volt rms. db amplitude scales are required to display the full dynamic range of a DSA. db values for power or voltage measurements yields the same result. Degrees of Freedom A phrase used in mechanical vibration to describe the complexity of the system. The number of degrees of freedom is the number of independent variables describing the state of a vibrating system. Digital Filter A filter which acts on the data after it has been sampled and digitized. Often used in DSAs to provide anti-aliasing protection before internal re-sampling. Differentiation Representation in terms of time rate of change. For example, differentiating velocity yields acceleration. In a DSA, differentiation is performed by multiplication by jw in the frequency domain, where w is frequency multiplied by 2p. (Differentiation can also be used to convert displacement to velocity.) Discrete Fourier Transform A procedure for calculating discrete frequency components (filters or lines) from sampled time data. Since the frequency domain result is complex (i.e., real and imaginary components), the number of frequency points is equal to half the number of time samples (for a real FFT). When using zoom analysis, the FFT uses complex time data and then the number of frequency lines is equal to the number of time samples. Displacement The change in distance or position of an object relative to a reference. Displacement Transducer A transducer whose output is proportional to the distance between it and the measured object (usually the shaft). DSA See Dynamic Signal Analyzer. Dual Probe A transducer set consisting of displacement and velocity transducers. Combines measurement of shaft motion relative to the displacement transducer with velocity of the displacement transducer to produce absolute motion of the shaft. Dual Voting Concept where two independent inputs are required before action (usually machine shutdown) is taken. Most often used with axial position measurements, where failure of a single transducer might lead to an unnecessary shutdown. Dynamic Motion Vibratory motion of a rotor system caused by mechanisms that are active only when the rotor is turning at speeds above slow roll speed. Dynamic Signal Analyzer (DSA) Vibration analyzer that uses digital signal processing and the Fast Fourier Transform to display vibration frequency components. DSAs also display the time domain and phase spectrum, and can usually be interfaced to a computer. Eccentricity, Mechanical The variation of the outer diameter of a shaft surface when referenced to the true geometric centerline of the shaft. Out-of-roundness. Eccentricity Ratio The vector difference between the bearing centerline and the average steady-state journal centerline. Eddy Current Electrical current which is generated (and dissipated) in a conductive material in the presence of an electromagnetic field. IMI SENSORS DIVISION TOLL-FREE

160 Glossary of Terms Electrical Runout An error signal that occurs in eddy current displacement measurements when shaft surface conductivity varies. Engineering Units In a DSA, refers to units that are calibrated by the user (e.g., in/s, g s). External Sampling In a DSA, refers to control of data sampling by a multiplied tachometer signal. Provides a stationary display of rpm-related peaks with changing speed. Fast Fourier Transform (FFT) A computer (or microprocessor) procedure for calculating discrete frequency components from sampled time data. A special case of the Discrete Fourier Transform, DFT, where the number of samples is constrained to a power of 2 for speed. Filter Electronic circuitry designed to pass or reject a specific frequency band. Finite Element Modeling A computer aided design technique for predicting the dynamic behavior of a mechanical system prior to construction. Modeling can be used, for example, to predict the natural frequencies of a flexible rotor. Flat Top Filter FFT window function which provides the best amplitude accuracy for measuring discrete frequency components. Note: there are several different flat top windows. The HP proprietary P401 is the best flat top window. P301 is the most common. Fluid-Film Bearing A bearing which supports the shaft on a thin film of oil. The fluid-film layer may be generated by journal rotation (hydrodynamic bearing), or by externally applied pressure (hydrostatic bearing). Forced Vibration The oscillation of a system under the action of a forcing function. Typically forced vibration occurs at the frequency of the exciting force. Free Vibration Vibration of a mechanical system following an initial force - typically at one or more natural frequencies. Frequency The repetition rate of a periodic event, usually expressed in cycles per second (Hz), revolutions per minute (rpm), or multiples of a rotational speed (orders). Compare to orders that are commonly referred to as 1x for rotational speed, 2x for twice rotational speed, etc. Frequency Response Function The amplitude and phase response characteristics of a system. G The value of acceleration produced by the force of gravity. Gear Mesh Frequency A potential vibration frequency on any machine that contains gears; equal to the number of teeth multiplied by the rotational frequency of the gear. Hanning Window FFT window function that normally provides better frequency resolution than the flat top window, but with reduced amplitude accuracy. Harmonic Frequency component at a frequency that is an integer multiple of the fundamental frequency. Hertz (Hz) The unit of frequency represented by cycles per second. High Spot The angular location on the shaft directly under the vibration transducer at the point of closest proximity. The high spot can move with changes in shaft dynamics (e.g., from changes in speed). High-Pass Filter A filter with a transmission band starting at a lower cutoff frequency and extending to (theoretically) infinite frequency. Hysteresis Non-uniqueness in the relationship between two variables as a parameter increases or decreases. Also called deadband, or that portion of a system s response where a change in input does not produce a change in output. Imbalance Unequal radial weight distribution on a rotor system; a shaft condition such that the mass and shaft geometric center lines do not coincide. Impact Test Response test where the broad frequency range produced by an impact is used as the stimulus. Sometimes referred to as a bump test. See impulse response for more information. Impedance, Mechanical The mechanical properties of a machine system (mass, stiffness, damping) that determine the response to periodic forcing functions. Impulse Response The response of a system to an impulse as input signal. The output then produces the impulse response that is the time domain equivalent to the Frequency Response Function, FRF. Influence Coefficients Mathematical coefficients that describe the influence of system loading on system deflection. Integration A process producing a result that, when differentiated, yields the original quantity. Integration of acceleration, for example, yields velocity. Integration is performed in a DSA by dividing the frequency lines by jw, where w is frequency multiplied by 2p. (Integration is also used to convert velocity to displacement.) Journal Specific portions of the shaft surface from which rotor applied loads are transmitted to bearing supports. Keyphasor A signal used in rotating machinery measurements, generated by a transducer observing a once-per-revolution event. The keyphasor signal is used in phase measurements for analysis and balancing. (Keyphasor is a Bently Nevada trade name.) Lateral Location The definition of various points along the shaft axis of rotation. Lateral Vibration See Radial Vibration. Leakage In DSAs, a result of finite time record length that results in smearing of frequency components. Its effects are greatly reduced by the use of weighted time functions such as Flat top or Hanning windows. Heavy Spot The angular location of the imbalance vector at a specific lateral location on a shaft. The heavy spot typically does not change with rotational speed HOUR SENSORLINE SM WEBSITE

161 Glossary of Terms Linearity The response characteristics of a linear system remain constant with input level and/or excitation signal type. That is, if the response to input a is k a, and the response to input b is k b, then the response of a linear system to input (a + b) will be (k a + k b), independent of the function k. An example of a non-linear system is one whose response is limited by mechanical stop, such as occurs when a bearing mount is loose. Lines Common term used to describe the filters of a DSA produced by the FFT (e.g., 400 line analyzer). Linear Averaging See Time Averaging. Low-Pass Filter A filter whose transmission band extends from dc to an upper cutoff frequency. Mechanical Runout An error in measuring the position of the shaft centerline with a displacement probe that is caused by out-of-roundness and surface imperfections. Micrometer (MICRON) One millionth ( ) of a meter. (1 micron = 1 x E mils.) MIL One thousandth (0.001) of an inch. (1 mil = 25.4 microns) Modal Analysis The process of breaking complex vibration into its component modes of vibration, very much like frequency domain analysis breaks vibration down to component frequencies. Mode Shape The resultant deflected shape of a rotor at a specific rotational speed to an applied forcing function. A three-dimensional presentation of rotor lateral deflection along the shaft axis. Modulation, Amplitude (AM) The process where the amplitude of a signal is varied as a function of the instantaneous value of a another signal. The first signal is called the carrier, and the second signal is called the modulating signal. Amplitude modulation always produces a component at the carrier frequency, with components (sidebands) at the frequency of the carrier frequency plus minus the modulating signal. Modulation, Frequency (FM) The process where the frequency of the carrier is determined by the amplitude of the modulating signal. Frequency modulation produces a component at the carrier frequency, with adjacent components (sidebands) at frequencies around the carrier frequency related to the modulating signal. The carrier and sidebands are described by Bessel functions. Natural Frequency The frequency of free vibration of a system. The frequency at which an undamped system with a single degree of freedom will oscillate upon momentary displacement from its rest position. Nodal Point A point of minimum shaft deflection in a specific mode shape. May readily change location along the shaft axis due to changes in residual imbalance or other forcing function, or change in restraint such as increased bearing clearance. Noise Any component of a transducer output signal that does not represent the variable intended to be measured. Nyquist Criterion Requirement that a sampled system needs to be sampled at a frequency greater than twice the bandwidth of the signal to be sampled. Nyquist Plot A plot of real versus imaginary spectral components that is often used in servo analysis. Should not be confused with a polar plot of amplitude and phase of 1x vibration. Octave The interval between two frequencies with a ratio of 2 to 1. Oil Whirl/Whip An unstable free vibration whereby a fluid-film bearing has insufficient unit loading. Under this condition, the shaft centerline dynamic motion is usually circular in the direction of rotation. Oil whirl occurs at the oil flow velocity within the bearing, usually 40 to 49% of shaft speed. Oil whip occurs when the whirl frequency coincides with (and becomes locked to) a shaft resonant frequency. (Oil whirl and whip can occur in any case where fluid is between two cylindrical surfaces.) Orbit The path of the shaft centerline motion during rotation. The orbit is observed with an oscilloscope connected to x and y-axis displacement transducers. Some dual-channel DSAs also have the ability to display orbits. Oscillator-Demodulator A signal conditioning device that sends a radio frequency signal to an eddy-current displacement probe, demodulates the probe output, and provides output signals proportional to both the average and dynamic gap distances. (Also referred to as Proximitor, a Bently Nevada trade name.) Peak Hold In a DSA, a type of averaging that holds the peak signal level for each frequency component. Period The time required for a complete oscillation or for a single cycle of events. The reciprocal of frequency. Phase A measurement of the timing relationship between two signals, or between a specific vibration event and a keyphasor pulse. Phase is often measured as a function of frequency. Piezoelectric Any material which provides a conversion between mechanical and electrical energy. For a piezoelectric crystal, if mechanical stresses are applied on two opposite faces, electrical charges appear on some other pair of faces. Polar Plot Polar coordinate representation of the locus of the 1x vector at a specific lateral shaft location with the shaft rotational speed as a parameter. Power Spectrum See Auto Spectrum. Preload, Bearing The dimensionless quantity that is typically expressed as a number from zero to one where a preload of zero indicates no bearing load upon the shaft, and one indicates the maximum preload (i.e., line contact between shaft and bearing). Preload, External Any of several mechanisms that can externally load a bearing. This includes soft preloads such as process fluids or gravitational forces as well as hard preloads from gear contact forces, misalignment, rubs, etc. Proximitor See Oscillator/Demodulator. Radial Direction perpendicular to the shaft centerline. Radial Position The average location, relative to the radial bearing centerline, of the shaft dynamic motion. IMI SENSORS DIVISION TOLL-FREE

162 Glossary of Terms Radial Vibration Shaft dynamic motion or casing vibration which is in a direction perpendicular to the shaft centerline. Real-Time Analyzer See Dynamic Signal Analyzer. Real-Time Rate For a DSA, the broadest frequency span at which data is sampled continuously. Real-time rate is mostly dependent on FFT processing speed. If the definition of real-time rate is not miss any data, the real-time rate will be window dependent. The real-time rate will decrease when using any other window than uniform. Rectangular Window See Uniform Window. Relative Motion Vibration measured relative to a chosen reference. Displacement transducers generally measure shaft motion relative to the transducer mounting. Repeatability The ability of a transducer or readout instrument to reproduce readings when the same input is applied repeatedly. Resolution The smallest change in stimulus that will produce a detectable change in the instrument output. Resonance The condition of vibration amplitude and phase change response caused by a corresponding system sensitivity to a particular forcing frequency. A resonance is typically identified by a substantial amplitude increase, and related phase shift. Rolling Element Bearing Bearing whose low friction qualities derive from rolling elements (balls or rollers), with little lubrication. Root Mean Square (rms) Square root of the arithmetical average of a set of squared instantaneous values. DSAs perform rms averaging digitally on successive vibration spectra, frequency line by frequency line. Rotor, Flexible A rotor which operates close enough to, or beyond its first bending critical speed for dynamic effects to influence rotor deformations. Rotors which cannot be classified as rigid rotors are considered to be flexible rotors. Rotor, Rigid A rotor which operates substantially below its first bending critical speed. A rigid rotor can be brought into, and will remain in, a state of satisfactory balance at all operating speeds when balanced on any two arbitrarily selected correction planes. Runout Compensation Electronic correction of a transducer output signal for the error resulting from slow roll runout. Seismic Refers to an inertially referenced measurement or a measurement relative to free space. Seismic Transducer A transducer that is mounted on the case or housing of a machine and measures casing vibration relative to free space. Accelerometers and velocity transducers are seismic. Signal Conditioner A device placed between a signal source and a readout instrument to change the signal and/or bandwidth. Examples: attenuators, preamplifiers, charge amplifiers, filters. Signature Term usually applied to the vibration frequency spectrum which is distinctive and special to a machine or component, system or subsystem at a specific point in time, under specific machine operating conditions, etc. Used for historical 144 comparison of mechanical condition over the operating life of the machine. Slow Roll Speed Low rotative speed at which dynamic motion effects from forces such as imbalance are negligible. Spectral Map A three-dimensional plot of the vibration amplitude spectrum versus another variable, usually time or rpm. Spectrum Analyzer An instrument which displays the frequency spectrum of an input signal. Stiffness The spring-like quality of mechanical and hydraulic elements to elasticity deform under load. Strain The physical deformation, deflection, or change in length resulting from stress (force per unit area). Subharmonic Sinusoidal quantity of a frequency that is an integral submultiple of a fundamental frequency. Subsynchronous Component(s) of a vibration signal which has a frequency less than shaft rotative frequency. Synchronous Sampling In a DSA, it refers to the control of the effective sampling rate of data; which includes the processes of external sampling and computed resampling used in order tracking. Time Averaging In a DSA, averaging of time records that results in reduction of asynchronous components with reference to the trigger. Time Record In a DSA, the sampled time data converted to the frequency domain by the FFT. Most DSAs use a time record of 1024 samples. Torsional Vibration Amplitude modulation of torque measured in degrees peak-to-peak referenced to the axis of shaft rotation. Tracking Filter A low-pass or band-pass filter which automatically tracks the input signal versus the rpm. A tracking filter is usually required for aliasing protection when data sampling is controlled externally. Transducer A device for translating the magnitude of one quantity into another quantity. Transient Vibration Temporarily sustained vibration of a mechanical system. It may consist of forced or free vibration or both. Typically this is associated with changes in machine operating condition such as speed, load, etc. Transverse Sensitivity See Cross-Axis Sensitivity. Trigger Any event which can be used as a timing reference. In a DSA, a trigger can be used to initiate a measurement. Unbalance See Imbalance. Uniform Window In a DSA, a window function with uniform weighting across the time record. This window does not protect against leakage, and should be used only with transient signals contained completely within the time record. Vector A quantity which has both magnitude and direction (phase). Waterfall Plot See Spectral Map HOUR SENSORLINE SM WEBSITE

163 Notes IMI SENSORS DIVISION TOLL-FREE

164 Notes HOUR SENSORLINE SM WEBSITE

165 Sensors that measure up! SM PCB Piezotronics, Inc. is uniquely positioned in the sensor industry to satisfy a wide range of research, test, measurement, monitoring, and control applications. Each focused product division provides attention to specific measurement requirements by maintaining a knowledgeable staff of applications engineers, customer service representatives, and product specialists. With considerable manufacturing capabilities, PCB is equipped to produce products in house and deliver them on time. An experienced engineering staff and a willingness to meet customer expectations enables PCB to develop custom products that satisfy special applications not covered by standard models. PCB Piezotronics, Inc. is a member of the PCB Group of companies, which includes the following measurement technology affiliates: Larson Davis, Inc. ( , specializes in digital sensing systems, sound level meters, outdoor noise monitoring systems, personal noise dosimeters, human vibration meters, microphones, preamplifiers, signal conditioners and acoustic calibrators. The Modal Shop, Inc. ( , specializes in multichannel sound and vibration systems, G.R.A.S. precision condenser microphones, calibration systems, test equipment rental, and application engineering services. Oceana Sensor Technologies ( , specializes in automated assembly of piezoelectric sensors for high volume, low-cost, OEM applications. Wireless e-diagnostics. STI Technologies, Inc. ( , specializes in engineering consulting using FEA techniques; analysis, testing, and technology development to ensure high performance and reliability for turbomachinery and rotating machine systems. The Vibration Division of PCB Piezotronics, Inc. specializes in the development, application, and support of shock and vibration sensors, impact hammers, piezoelectric actuators, and dynamic strain sensors for acceleration measurements and structural testing requirements. Environmental stress screening Floor and foundation vibrations Geological exploration & mapping Modal analysis Structural testing NVH /noise vibration and harshness Package testing Pile driver monitoring Shock and pyroshock measurements Ride quality monitoring Squeak and rattle detection Vibration control Vibration Division toll-free FAX vibration@pcb.com The IMI Sensors Division of PCB Piezotronics, Inc. specializes in the development, application, and support of industrial vibration sensors, meters, and accessories for machinery condition monitoring and predictive maintenance requirements. Balancing Bearing analysis Diagnostics of rotating machinery Gearbox analysis Hull vibration monitoring Machinery condition monitoring Machinery mount monitoring Machinery vibration monitoring Predictive maintenance Shaft alignment Slurry pulsation monitoring IMI Sensors Division toll-free FAX imi@pcb.com The Force / Torque Division of PCB Piezotronics, Inc. specializes in the development, application, and support of piezoelectric and strain gage force sensors, load cells, and torque transducers for a wide range of research, test, measurement, monitoring, and control requirements. Automotive ride simulator measurements Biomechanics Brake torque measurements Cold forming operations monitoring Composites testing and evaluation Compression force measurement Crash testing Crimping Force / Torque Division toll-free FAX force@pcb.com Drop testing Electric motor testing Engine dynamometers Force press monitoring Impact measurements Materials testing Stamping operations monitoring Torque measurements Weighing The Pressure Division of PCB Piezotronics, Inc. specializes in the development, application, and support of piezoelectric and resistive pressure sensors for dynamic and static pressure test, measurement, monitoring, and control requirements. Ballistics Blast & explosion Combustion measurement and monitoring Exhaust noise & pulsation studies Explosive studies Fluid borne noise Pressure Division toll-free FAX pressure@pcb.com High intensity sound measurements Hydraulic pressure studies Level measurements Liquid depth measurements Pneumatic pressure studies Process monitoring & control Shock wave measurements The Electronics Division of PCB Piezotronics, Inc. specializes in the development, application, and support of signal conditioners, cables, and accessories for a wide variety of sensor interfacing requirements. Electronics Division toll-free FAX electronics@pcb.com

166 Sensor Technology Center Piezoelectric, capacitive, strain gage, and resistive sensors for acceleration, acoustics, actuation, force, load, pressure, shock, strain, torque and vibration You are invited to visit our modern manufacturing and technology center whenever you are in the Buffalo or Niagara Falls area. PCB is located convenient to the Buffalo Niagara International Airport and near Niagara Falls. IMI-600B Walden Avenue, Depew, NY USA IMI SM Sensors Division toll-free hour SensorLine SM FAX Website ISO 9001 CERTIFIED 2002 PCB Group, Inc. In the interest of constant product improvement, specifications are subject to change without notice. PCB, ICP, Modally Tuned, Swiveler, and Spindler are registered trademarks of PCB Group, Inc. IMI, SensorLine, and Sensors that measure up! are service marks of PCB Group, Inc. All other trademarks are properties of their respective owners. Printed in U.S.A.