1. ORDERING GUIDE, TA DPM SERIES TRANSMITTERS

Transcription

1 TA DPM SERIES TRANSMITTERS ANALOG INPUT 4-20 ma or 0-10V ANALOG OUTPUT OWNERS MANUAL LAUREL Electronics Inc G Airway Ave, Costa Mesa, CA, 92626, USA Tel: (714) Fax: (714) Wesite:

2 1. ORDERING GUIDE, TA DPM SERIES TRANSMITTERS Configure a model numer in this format: TA202DCV1, CBL03 TA..Transmitter with 4-20 ma or 0-10V isolated analog output. Includes serial port for programming and 5V, 10V or 15V excitation output. Default jumpered for RS232. Main Board 2... Standard main oard 4... Extended main oard Note: 4 adds rate of change and custom curve linearization. Not for temperature. Power V ac or V dc V ac or 10-48V dc Relay Output 0.None 2...Dual solid state relays Input Type DC Volts Jumpered for 10V excitation. DCV mv DCV V DCV V DCV V DCV V DC Amperes Jumpered for 10V excitation. DCA ma DCA ma DCA ma DCA A 100 Ohm Platinum RTD s P385C to 850 C P385F to 1562 F P392C to 850 C P392F to 1562 F Thermocouples JC to 760 C JF to 1400 F KC to 1372 C KF to 2501 F TC to 400 C TF to 752 F EC to 1000 C EF to 1830 F NC to 1300 C NF to 2370 F SC to 1768 C SF to 3214 F RC to 1768 C RF to 3213 F Process Signals 4-20 ma, 0-10V, etc. Jumpered for 15V excitation. P ma in = 4-20 ma or 0-10V P1...Custom Scaling Specify min input & min output, max input & max output. Strain Gauge, Potentiometerm 4-wire ratio. Full scale inputs from 200 mv to 20V. Jumpered for 10V excitation. SG mv in = 4-20 ma or 0-10V out SG1..Custom Scaling Specify min input & min output, max input & max output. Load Cells 6-wire ratio. Full scale inputs from 20 to 500 mv. Jumpered for 10V excitation. WM ,999 to +99,999 Specify min input & min output, max input & max output. RMS Volts RMV mv RMV V RMV V RMV V RMV V RMS Amperes RMA ma RMA ma RMA ma RMA A ACCESSORIES CBL03...RS-232 cale, 3-pin connector on transmitter end, DB9 connector on computer end. CBL02...USB to DB9 adapter cale. Can e used with CBL01 or CBL

3 2. TABLE OF CONTENTS 1. ORDERING GUIDE, TA DPM SERIES TRANSMITTERS TABLE OF CONTENTS INTRODUCTION, TA DPM SERIES TRANSMITTERS RECEIVING & UNPACKING YOUR TRANSMITTER SAFETY CONSIDERATIONS TRANSMITTER FIELD WIRING PROGRAMMING YOUR TRANSMITTER OPENING YOUR TRANSMITTER CASE DC SIGNAL CONDITIONER BOARD JUMPER SETTINGS AC SIGNAL CONDITIONER BOARD JUMPER SETTINGS LOAD CELL SIGNAL CONDITIONER BOARD JUMPER SETTINGS TEMPERATURE SIGNAL CONDITIONER BOARD JUMPER SETTINGS MAIN BOARD JUMPER SETTINGS DUAL RELAY OPERATION INPUT SIGNAL FILTERING TRANSMITTER CALIBRATION CUSTOM CURVE LINEARIZATION TA DPM SERIES TRANSMITTER SPECIFICATIONS WARRANTY

4 3. INTRODUCTION, TA DPM SERIES TRANSMITTERS This manual covers TA Series DIN rail transmitters with a 4-20 ma, 0-20 ma or 0-10V output and an analog input. The transmitters duplicate the signal conditioning and signal processing features of 1/8 DIN size, digital panel meter (DPM) counterparts for exceptional accuracy at high read rate. The current or voltage transmitter output is selectale at the connector and is transformer isolated to avoid ground loops. Either output provides 12-it (4096 step) resolution of the output span and is ultra-linear to within one it. The output is scaled in software and tracks an internal linearized digital reading. Transmitter output accuracy is ±0.05% of span for all DC analog input signals and ±0.1% of span for AC rms. A wide range of analog signal types are accommodated y four signal conditioners: DC input for volts, amps, process signals (e.g., 4-20 ma), and strain gauges. Most sensitive full scale input range of 200 mv. A 5A current shunt is uilt in. AC rms input for volts and amps. A 5A current shunt is uilt in. Load cell or microvolt input with selectale full scale input ranges from 20 mv to 500 mv. Temperature input for seven thermocouple types and four RTD types, each with a single span for the entire sensor range. A transducer excitation output is standard. Three output levels are jumper selectale: 10V at 120 ma (isolated), 5V at 50 ma (isolated), or 15V at 60 ma (non-isolated). The 10V output can drive four 350-ohm load cells in parallel. The default jumper setting is 10V for DC and load cells, and 15V for process signals. Dual solid state relays rated 120 ma at 125V ac or 240 ma at 150V dc are availale as an option. Isolation to 250V rms is provided for power, signal input, analog output, relay outputs, and communications. Isolation adds safety and avoids possile ground loops. The 5V and 10V transducer excitation outputs are isolated to 50V from signal ground. Internal jumpers are used to select the signal range, RS232 or RS485 communications, and excitation level. The transmitter configuration is specified y the model numer on the transmitter lael. A user can reconfigure the transmitter y opening the case and moving jumpers, as explained in this manual. Transmitter scaling is via the unit s three-terminal serial port using an external PC and Instrument Setup software. This software is provided on a mini-cd, which accompanies this manual, and can also e downloaded at no charge. The required 3-wire transmitter-to-pc interface RS232 cale is easy to uild and is also availale for purchase. RS232 I/O is standard and is the default serial setting for TA transmitters. RS485 is jumper selectale on the main oard

5 4. RECEIVING & UNPACKING YOUR TRANSMITTER Your transmitter was carefully tested and inspected prior to shipment. Should the transmitter e damaged in shipment, notify the freight carrier immediately. In the event the transmitter is not configured as ordered or is inoperale, return it to the place of purchase for repair or replacement. Please include a detailed description of the prolem. 5. SAFETY CONSIDERATIONS Warning: Use of this transmitter in a manner other than specified may impair the protection of the device and suject the user to a hazard. Visually inspect the unit for signs of damage. If the unit is damaged, do not attempt to operate. Caution: This unit may e powered with AC (mains) from V ac ±10% or V dc with the high voltage power supply option, or 12-30V ac or Vdc with the low voltage power supply option. Verify that the proper power option is installed for the power to e used. This transmitter has no AC (mains) switch. It will e in operation as soon as power is applied. The V ac or V dc mains connector (P1 Pins 1-3) is colored Green to differentiate it from other input and output connectors. The 12-30V ac or 10-48V dc mains connector is colored Black. To avoid dangers of electrocution and/or short circuit, do not attempt to open the case while the unit is under power. However, signal wiring changes external to the case can e made safely while the unit is under power. To prevent electrical or fire hazard, do not expose the transmitter to excessive moisture. Do not operate the transmitter in the presence of flammale gases or fumes. Such an environment constitutes an explosion hazard. Secure the transmitter to a 35 mm DIN rail. Symols used: Caution (refer to accompanying documents) Caution, risk of electric shock. Equipment protected throughout y doule insulation or reinforced insulation. Earth (ground) terminal. Both direct and alternating current. Operating environment: Transmitter Class II (doule insulated) equipment designed for use in Pollution degree

6 6. TRANSMITTER FIELD WIRING Please see next page for different signal types RX / A/A' / D0 1 TX / B/B' / D1 2 Comm. GND 3 Analog GND V output ma output 3 P4. Signal input & excitation output Signal conditioner oard P3. Optional solid state relay #1 P2. Optional P6. Serial solid state communications relay #2 P7. Analog output P1. Power input 3 AC or +DC 2 N/C or -DC 1 AC or +DC 3 AC or +DC 2 N/C or -DC 1 AC or +DC 3 Power GND 2 AC neutral or -DC 1 AC high or +DC P3 - SOLID STATE RELAY DETAIL Switching an AC Load 125V 120 ma max AC Neutral 3 Not used 2 Load 1 Neutral AC Switching a DC Load 150V 240 ma max Switching two DC Loads 150V 120 ma each Load 3 DC return 2 Load 1 -DC +DC Load #1 3 DC return 2 Load #2 1 -DC +DC +DC P6 - COMMUNICATIONS DETAIL Wiring of serial cale to PC RX / A/A' / D0 1 TX / B/B' / D1 2 Comm. GND Female DB9 connector, rear view

7 P4 - SIGNAL INPUT DETAIL DC & Externally Powered Process -10V excitation 1 +10V excitation 2 - Signal input 3 + Signal input 4 -DC +DC 2-Wire Process Transmitter -10V excitation 1 - Sense 2 - Signal 3 + Signal 4 +10V excitation 5 + Sense 6 Load Cell N/C 1 +15V excitation 2 N/C 3 + Signal input For 4-wire load cell connection, jumpe Pin1 to Pin 2, and Pin 5 to Pin V excitation 1 +10V excitation 2 - Signal input 3 + Signal input 4 Strain Gauge - Excitation 1 + Excitation 2 - Signal input 3 + Signal input 4 RTD - 2 Wire Signal High 1 NC 2 Signal Low 3 Signal High 4 AC True RMS 20, 200, 600V inputs AC neutral 0.2V, 2V, current - Excitation 1 + Excitation 2 - Signal input 3 + Signal input 4 RTD - 3 Wire NC 1 NC 2 - Signal input 3 + Signal input 4 Thermocouple - Excitation 1 + Excitation 2 - Signal input 3 + Signal input 4 RTD - 4 Wire P7 - ANALOG OUTPUT DETAIL Driving a Load with 4-20 ma Driving a Load with 0-10V Analog GND V output ma output Ohms max Analog GND V output ma output 3 5 kohms min - 7 -

8 7. PROGRAMMING YOUR TRANSMITTER OVERVIEW TA Series transmitters are easily programmed using a PC with an RS232 port and Instrument Setup (IS) software, which provides a graphical user interface. The software allows uploading, editing, downloading and saving of setup data, execution of commands under computer control, listing, plotting and graphing of data, and computer prompted caliration. The transmitter and PC are normally connected via a 3-wire RS232 cale (P/N CBL03), specified in Section 6. GETTING STARTED WITH IS SOFTWARE To install IS software, insert the CD ROM into your PC. The CD is self-ooting and will present you with a menu of choices. Click on Install Instrument Setup Software and follow the prompts. Or doule-click on IS2_x_x.exe if you have downloaded that file. To launch IS software, press on Start => Programs => IS2 => IS2. With your transmitter connected to your computer via RS-232, click on the Transmitter RS-232 utton. From the Estalish Communications Counter screen, specify your computer Com port (normally 1), aud rate (normally 9600), Custom ASCII Protocol, and No Parity. Click on Estalish. Once communications have een confirmed, click on Main Menu. The computer will rememer your communication settings for the next time that you run IS software. The est way to learn IS software is to experiment with it. From the Main Menu, click on Transmitter => Get Setup to retrieve (or get) the existing setup data from the transmitter. Click on View => Setup to ring up screens which allow you to easily edit the setup file using pulldown menus and other selection tools. You can save your file to disk y clicking on File => Save Setup. You can download (or put) your edited file into the transmitter y clicking on Transmitter => Put Setup. Programmale items will only e displayed if you have told the software that you have the appropriate hardware, such as the dual relay option. Pressing the F1 key at any time will ring up detailed help information. SCALING YOUR TRANSMITTER After you have selected your main oard type (Basic or Extended) and your signal conditioner option, click on the Scaling ta. With the DC, True RMS and Load Cell signal conditioners, you will e given the choice of three scaling methods: 1) Scale and Offset; 2) the Coordinates of 2 Points method, where (Low In, Low Read) and (High In, High Read) data points are entered numerically; and 3) the Reading Coordinates of 2 Points method, where actual Low In and High In inputs are sensed. Once scaling to engineering units has een completed and the decimal point has een set, digital readings can e transmitted, e used for relay setpoint control, or e converted to an analog output. They can also e viewed on the computer screen using IS software and clicking on the Readings ta, then List. To scale the analog transmitter output, click on the Analog Out ta. Select your output range (0-20 ma, 0-10V, 4-20 ma), then enter the numerical readings corresponding to two endpoints of your range

9 Scaling readings for the DC signal conditioner Scaling the analog output. ADDITIONAL FEATURES The Commands pull-down menu allows you to execute certain functions y using your computer mouse. This menu will e grayed out unless a Get Setup has een executed. The Readings pull-down menu provides three formats to display input data on your PC monitor. In all formats, use the Pause and Continue uttons to control the timing of data collection, then press Print for a hardcopy on your PC printer. - List presents the latest digital readings in a 20-row y 10-column tale. Press Pause at any time to freeze the display. Press Print for a hardcopy. - Plot generates a plot of digital readings vs. time in seconds. It effectively turns the transmitter-pc comination into a printing digital oscilloscope. - Graph generates a histogram, where the horizontal axis is the digital reading and the vertical axis is the numer of occurrences of readings. The display continually resizes itself as the numer of readings increases. Plot Graph - 9 -

10 The Jumpers pull-down menu shows jumper positions for all applicale circuit oards, duplicating information in this manual. The Caliration pull-down menu allows easy caliration of voltage and current ranges for the DC, load cell, and AC RMS signal conditioner oards. The PC first recognizes the type of oard, then prompts you to apply specific jumpers and caliration signals. Press Ready to take a reading. Press Repeat to take more readings. When you have decided on which reading to accept, press on the numer 1 through 10 of that reading. Additional caliration software is availale on CD and online

11 8. OPENING YOUR TRANSMITTER CASE WHEN TO CHANGE JUMPERS Most users will never have to open the transmitter case. TA transmitters are shipped fully jumpered and ready for scaling via Instrument Setup software. The factory configuration is specified y the model numer on the transmitter lael. Jumpers on the signal oard set the signal range. To move jumpers, you will need to open the transmitter. Your selected range should encompass your maximum expected signal levels. All ranges are factory calirated, with caliration factors stored in EPROM on the signal oard. Jumpers on the main oard are used to select the data signal type (RS485 or RS232), excitation level (5V, 10V or 15V), and RS485 line termination resistor. Default factory settings for TA Series transmitters are RS232, 15V excitation for process transmitters, 10V excitation for other transmitters, and no RS485 line termination resistor. After changing jumper settings, you will need to update your data in Instrument Setup software and on the transmitter lael. While this software can sense the transmitter and signal conditioner type, it cannot sense jumper settings which modify the electrical circuit HOW TO OPEN & CLOSE THE CASE The two clamshell halves of the case snap together. They are secured y means of four molded spring clips. They will come apart when the spring clips are ent outward with a small flat lade screwdriver. 1. To release your transmitter from the DIN rail, insert the flat-lade screwdriver into the spring-loaded red ta, and use it as a lever to pull down the ta. In very tight spaces, use a wire hook. 2. Remove all connectors. While pressing down in its center, push the spring-loaded red ta toward the center of the case and remove it. Do not lose the coil spring!

12 3. Insert the screwdriver etween the two front spring tas and the case, and push down. 4. Insert the screwdriver etween the top rear ta spring ta and the case, and push down. 5. Use the screwdriver to lift the fourth ta at the rear of the case. The case will now open. 6. Unplug the signal conditioner oard. This will provide access to all jumpers. 7. To reassemle the case, simply snap the two clamshell halves ack together Use the screwdriver to lift the spring-loaded red ta as an aid to sliding it ack in place.

13 9. DC SIGNAL CONDITIONER BOARD JUMPER SETTINGS Voltage Ranges FS Input E1 E2 E3 ± mv ± V ± V ± V ± V Current Ranges A A B B B f f h h g a a a FS Input E1 E2 E3 ± ma ± ma ± ma ±5.000 A A A A A e, h d, h c, h a,, h h g f e a c d B A E3 E2 a E1 10. AC RMS SIGNAL CONDITIONER BOARD JUMPER SETTINGS Voltage Ranges FS Input Jumpers mv V V V V g, k g, j h, k h, j f, j h f g a c Current Ranges e d k FS Input ma ma ma A Jumpers e, f, k d, f, k c, f, k a,, f, m j m

14 11. LOAD CELL SIGNAL CONDITIONER BOARD JUMPER SETTINGS Load Cell & Microvolt Ranges FS Input Jumpers c ± mv ± mv ± mv ± mv ± mv e a c d a e d 12. TEMPERATURE SIGNAL CONDITIONER BOARD JUMPER SETTINGS Thermocouple Type Jumpers J, K, E, N T, R, S e f a Open Thermocouple Jumpers Upscale indication Downscale indication c d e RTD Connection 2- or 4- wire 3-wire Jumpers, e a, e f c d RTD type is selected in software

15 13. MAIN BOARD JUMPER SETTINGS Serial Output Jumpers RS232 RS485 Termination resistor* a, c, d e Excitation Output Jumpers 120 ma, isolated 50 ma, isolated 30 ma, non-isolated none f g f g a c d e * The termination resistor jumper setting should e selected if the transmitter is the last device on an RS485 line longer than 200 feet (60 m)

16 Reading Reading Digital Reading Digital Reading 14. DUAL RELAY OPERATION The optional dual solid state relays can operate in a asic alarm mode, in a hysteresis and mode, or in a deviation and modes, as explained elow. Setpoint operation is referenced to the digital reading in engineering units that is internal to the transmitter. For example, temperature alarm or control would e referenced to a setpoint in C or F. Setpoint 1000 ON 1000 Setpoint OFF OFF OFF ON ON Time Active High Basic Alarm Time Active Low Basic Alarm A asic alarm changes state automatically when the reading rises aove a specified limit, and changes ack automatically when the reading falls elow that limit. A red LED indicates the relay is in an alarm condition, which can e active high or active low, as programmed. Heater 1050 OFF OFF OFF ON ON ON 950 Fail Fail Pass Pass Setpoint = 1000 Hysteresis value = 50 Time Hysteresis Band Alarm Setpoint = 1000 Deviation value = 50 Time Deviation Band Alarm A hysteresis and alarm controls relay action symmetrically around a setpoint. The relay closes (or opens) when the reading goes aove the setpoint plus one hysteresis value, and opens (or closes) when the reading falls elow the setpoint less one hysteresis value. A narrow

17 hysteresis and is often used to minimize relay chatter. A wide hysteresis and can e used for on-off control applications. A deviation and alarm controls relay action symmetrically around a setpoint. The relay actuates when the reading falls within the deviation and, and de-actuates when the reading falls outside. A deviation value (such as 50 counts) is set up around oth sides of the setpoint to create the deviation and. Passands around a setpoint are often used for component testing

18 15. INPUT SIGNAL FILTERING A moving average filter is selectale in software to process the internal digital readings, which are taken at 60/sec with 60 Hz power and 50/sec with 50 Hz power. Eight moving average settings are selectale with the following equivalent RC time constants: 0.08 sec, 0.15 sec, 0.3 sec, 0.6 sec, 1.2 sec, 2.4 sec, 4.8 sec, 9.6 sec. The longer time constants provide superior noise filtering at the expense of fast response time. Adaptive moving average filtering allows the transmitter to respond rapidly to actual changes in signal while filtering out normal noise. An adaptive filter threshold causes the moving average filter to e reset to the latest reading when the accumulated difference etween individual readings and the filtered reading exceeds that threshold. The accumulated difference is also reset to zero when the latest reading has a different polarity than the filtered reading. The adaptive filter threshold can e selected as low or high. Low is normally selected. High should e selected if the signal has large transients

19 16. TRANSMITTER CALIBRATION All input ranges are digitally calirated at the factory prior to shipment using caliration equipment certified to NIST standards. The caliration constants are stored digitally in EEPROM on the signal conditioner oard. As a result, signal conditioner oards may e mixed and interchanged without requiring instrument recaliration. Caliration constants for the current and voltage analog outputs are stored in EEPROM on the main oard. Digital caliration eliminates much of circuitry that would e associated with analog caliration, providing superior long-term accuracy and staility. If recaliration is required, the transmitter may e returned to the factory or to an authorized distriutor. Easy caliration of DC, AC and load cell signal conditioner ranges is also possile y the Instrument Setup software, as descried in Section 7. Step-y-step instructions and advanced caliration software are availale from the factory

20 17. CUSTOM CURVE LINEARIZATION Curve.exe is a DOS-ased, executale PC program used to set up an Extended transmitter so that the analog output and internal digital readings have a user-defined, non-linear relationship with the input signal. For example, it allows a transmitter to correct for transducer nonlinearity or to transmit the volume of an irregularly shaped tank ased on liquid level. The calculated linearizing parameters are downloaded into non-volatile memory of the transmitter. The curvefitting algorithm uses quadratic segments of varying length and curvature, and includes diagnostics to estimate curve fitting errors. The program is self-prompting, avoiding the need for detailed printed instructions. This manual section is only intended as an introduction. GETTING STARTED Download curve.exe from the distriution CD into the same directory that will contain your data files, such as c:\curves. Connect your transmitter to the PC and doule-click on curve.exe, which is an executale file. Follow the steps on the computer screens, which will prompt you and provide extensive help information. Pressing R (Enter) returns to the main menu. You will e given the choice of four data entry modes, all of which are explained in detail. 1) Text file entry mode, 2) 2-coordinate keyoard entry mode, 3) 2-coordinate file entry mode, and 4) Equation entry mode

21 18. TA DPM SERIES TRANSMITTER SPECIFICATIONS Mechanical Case Dimensions x 101 x 22.5 mm Case Mounting...35 mm DIN rail per EN Electrical Connections... Detachale screw plug connectors Environmental Operating Temperature...0 C to 70 C Storage Temperature C to 85 C Relative Humidity... 95% from 0 C to 40 C, non-condensing Power & Electrical Power to Transmitter V AC ±10% or V DC (standard power) v AC or 10-48V DC (low voltage power option) Power Isolation...250V RMS etween power, analog output, signal input, and serial I/O Transmitter Setup Selection of Signal Ranges & Temperature Sensors...Jumpers on signal conditioner oard Selection of Serial Format (RS232 or RS485) & Excitation Level...Jumpers on main oard Programming...Via PC using Instrument Setup software and CBL03 cale Analog Output Output Levels ma, 4-20 ma or 0-10V Voltage or Current Selection...At connector Compliance at 20 ma...10v (0-500 ohm load) Compliance at 10V...2 ma (5 kohm minimum load) Output Resolution...12 its (4,096 steps) Output Accuracy...±0.05% of full span for DC inputs, ±0.1% for AC RMS inputs Output Update Rate... 60/sec at 60 Hz power, 50/sec at 50 Hz power Output Filtering...Digitally programmale Serial I/O (standard) Serial Formats...RS232 or half-duplex RS485 (jumper selectale, default is RS232) Protocol...Custom ASCII Comm. Connector... Detachale 3-position plug for TX, RX, Comm. GND Transducer Excitation Output (standard) Jumper Selection 120 ma, isolated to 50V from signal ground Jumper Selection 50 ma, isolated to 50V from signal ground Jumper Selection ma, non-isolated

22 Dual Relay Output (optional) Relay Type...Two solid state relays, SPST, normally open, Form A AC load rating ma at 125V AC, 20 ohms series resistance DC load rating ma at 150V DC, 5 ohms series resistance Input Signal Noise Rejection CMV, DC to 60 Hz...250V RMS CMR, DC to 60 Hz db NMR at 50/60 Hz db with no digital filtering Signal Conditioner Boards DC Volts, Amps, Process, Strain Input Range mv V V V V ma ma ma A Input Ohms 1 Gohm 1 Gohm 1 Mohm 1 Mohm 1 Mohm 100 ohms 10 ohms 1 ohm 0.01 ohm True AC RMS Volts (10 Hz-10 khz, 1% to 100% of full scale with crest factor to 2.4X) Range mv V V V V ma ma ma A Input Ohms 22 Mohm 22 Mohm 1 Mohm 1 Mohm 1 Mohm 100 ohms 10 ohms 1 ohm 0.01 ohm

23 Load Cell & Microvolt Input Range mv mv mv mv mv Input Ohms 1 Gohm 1 Gohm 1 Gohm 1 Gohm 1 Gohm RTD Input (0.1 resolution) Type Range Conformity Error DIN ANSI to 850 C -331 to 1562 F -202 to 631 C -331 to 1168 F 0.03 C 0.05 F 0.04 C 0.07 F RTD Connection:... 2, 3 or 4 wire Excitation Current ma Thermocouple Input (0.1 resolution) Type Range Conformity Error J K T E N S R -210 to 760 C -347to 1400 F -244 to 1372 C -408to 2501 F 0 to 400 C -257 to 0 C 32 to 752 F -430 to 32 F -240 to 1000 C -400 to 1830 F -245 to 1300 C -410 to 2370 F -46 to +68 C -51 to +213 F -45 to 1768 C -49 to 3214 F 0.09 C 0.16 F 0.10 C 0.17 F 0.03 C C 0.05 F 0.36 F 0.18 C 0.32 F 0.10 C 0.17 F 0.12 C 0.22 F 0.17 C 0.31 F

24 19. WARRANTY Laurel Electronics Inc. warrants its products against defects in materials or workmanship for a period of one year from the date of purchase. In the event of a defect during the warranty period, the unit should e returned, freight prepaid (and all duties and taxes) y the Buyer, to the authorized Laurel distriutor where the unit was purchased. The distriutor, at its option, will repair or replace the defective unit. The unit will e returned to the uyer with freight charges prepaid y the distriutor. LIMITATION OF WARRANTY The foregoing warranty shall not apply to defects resulting from: 1. Improper or inadequate maintenance y Buyer. 2. Unauthorized modification or misuse. 3. Operation outside the environmental specifications of the product. 4. Mishandling or ause. The warranty set forth aove is exclusive and no other warranty, whether written or oral, is expressed or implied. Laurel specifically disclaims the implied warranties of merchantaility and fitness for a particular purpose. EXCLUSIVE REMEDIES The remedies provided herein are Buyer s sole and exclusive remedies. In no event shall Laurel e liale for direct, indirect, incidental or consequential damages (including loss of profits) whether ased on contract, tort, or any other legal theory. Copyright , Laurel Electronics, Inc. REV 03/