I/A Series Intelligent Multimeasurement Transmitter Model RTT25 Temperature Transmitter with FOUNDATION Fieldbus Communication Protocol

Transcription

1 Product Specifications I/A Series Intelligent Multimeasurement Transmitter Model RTT25 Temperature Transmitter with FOUNDATION Fieldbus Communication Protocol PSS 2A-1F4 C This transmitter receives input signals from RTDs, thermocouples, ohms, milliamperes, or millivolts. It receives power from, and communicates digitally over, the Foundation Fieldbus segment. It is registered with the Foundation and has passed interoperability tests. Device descriptions, on file with the Foundation, are supplied to ensure operability with any Host supporting the FOUNDATION Fieldbus protocol. FEATURES FOUNDATION Fieldbus kbits/s, Voltage Mode, MAU specification compliant Interoperability tested FOUNDATION registered High digital precision, stability, and resolution to ensure accurate measurement and performance Available with single or dual inputs True dual sensor capability for averaging, difference, redundant, or independent use One unit configurable for all T/C, RTD, mv, ma, ohm, and custom inputs Self-diagnostics and self-calibration Multidrop Fieldbus supports point-to-point, bus, and tree topologies 4 to 20 ma to FOUNDATION Fieldbus converter Available as a basic amplifier (no enclosure), or in an aluminum or 316 ss NEMA 4X/IEC IP66 enclosure as follows: For surface/pipe mounting, remote sensor Enclosure with integrally mounted bare sensor Enclosure with sensor for Thermowell mount. Transmitter configuration locally via the LCD Indicator, or remotely over Fieldbus Transmitter includes Fieldbus function blocks Supports all standard views, alarm messages, and trends Transmitter firmware is updatable in the field Conforms to applicable European Union Directives (product marked with CE Logo) Standard 2-year warranty

2 Page 2 GENERAL DESCRIPTION - I/A Series TEMPERATURE TRANSMITTER MULTIPLE MEASUREMENTS The transmitter is available for single measurements, including seven different RTDs (2-, 3-, or 4-wire), eleven different thermocouples, millivolts, milliamps, and ohms. Additional sensor flexibility is provided with the custom curve and the ability to have the output linear with temperature or humidity. The transmitter is also available with dual sensor measurements, as long as the sensors are the same type. This provides the capability for averaging, difference, or redundant measurements. DUAL INDEPENDENT MEASUREMENTS The multiple measurement feature combined with the FOUNDATION fieldbus digital output allows one transmitter to be used for two individual process measurements, which can reduce the number of transmitters required by 50%. 4 to 20 ma-to-foundation FIELDBUS CONVERTER The single or dual input transmitter accepts a ma signal. This allows the conversion of 4 to 20 ma signals to the fieldbus segment, which can be of tremendous benefit by integrating legacy devices not available with FOUNDATION fieldbus protocol. VERSATILE HIGH PERFORMANCE TRANSMITTER A wide range of packaging and sensor types makes this transmitter suitable for virtually all temperature measurement applications. The microprocessorbased electronics eliminates ambient temperature effects and results in high accuracy, repeatability and linearization of the sensor signal. EFFICIENT AND DURABLE Industrial-grade integrated circuits and sealed electronics combine to make this microprocessorbased transmitter an efficient and durable device. AUTOMATIC SELF-CALIBRATION This transmitter has an advanced automatic selfcalibration routine that greatly extends the time between recalibrations. Every three seconds, the transmitter checks the zero and full scale output against highly accurate and stable internal voltage signals that are referenced back to the factory calibration stored in non-volatile EEPROM memory. Any necessary adjustments are made automatically without interrupting the output signal. CONFIGURATION STORAGE All configurable parameters are stored in non-volatile EEPROM memory and retained when power is removed from the transmitter. The transmitter is ready for immediate use when repowered. MULTIPLE PACKAGING CONFIGURATIONS The transmitter (Figure 1) is suitable for use in a variety of applications. Transmitters with integrally mounted sensor have an environmentally protected enclosure and are mounted directly to the process. Surface- and pipe-mounted configurations allow the transmitter to be mounted remotely from the process. The transmitter is also available with DIN-mounting hardware, and as a basic transmitter package (must be mounted in EMI-Shielded enclosures provided by user). Built-in protection from vibration and radio frequency interference (RFI) are also provided. DIN RAIL MOUNT BASIC THERMOWELL FOR PIPE OR SURFACE MOUNTING BARE SENSOR HOUSING Figure 1. Multiple Packaging Configurations INTELLIGENT NOISE FILTERING Innovative filtering automatically eliminates noise while maintaining fast response to rapid input changes. It provides a highly accurate and smooth output signal without the need for excessive damping. A digital filtering algorithm (signal conditioner) is active over a band of input fluctuations. Any sensor noise is eliminated while the conditioned signal reacts immediately to any large input change. This allows the transmitter to be used in a wide variety of electrically noisy installations. When there is a rapid signal change, the smoothing band is immediately exceeded, and the output of the signal conditioner uses this change as the basis for the output signal. As long as the input fluctuates or moves at a rate that is outside the band, the output instantly tracks the input signal. Once the input settles at a new value, the filtering algorithm is automatically reactivated, eliminating noise and producing an accurate and stable output. CUSTODY TRANSFER/SECURITY JUMPER The configurator pushbuttons, and any remote configurator, can be disabled via the mechanical write protection jumper.

3 Page 3 LCD INDICATOR/CONFIGURATOR OPTION The versatile indicator (Figure 2) plugs into the transmitter and provides the following features: Highly Accurate Microprocessor driven indicators provide excellent accuracy. Local Configuration The indicator has two pushbuttons to reconfigure some of the transmitter database without using a separate configurator. Configuration menu messages of the indicator are configurable in English, French, German, Italian, or Spanish. Security The pushbuttons for local configuration can be disabled by any remote configurator for security. Non-Interactive Transmitter output is unaffected whether inserting/removing indicator, reading parameters, or by indicator failure. Highly Visible Measurement Display Top line of indicator has six 8 mm (0.31 in) high digits. Negative values are displayed with a minus sign. Configurable Display Top line of the indicator can display output from Input 1, Input 2, or Dual Values. Innovative Features The indicator s 2nd line is an eleven-segment bargraph that displays readings in % of calibrated range. Temperatures outside the calibrated range are indicated by a left-pointing (underrange) or right-pointing (overrange) arrow. The 3rd line displays a userconfigurable tag number on a 6 mm (0.25 in) high, seven-character, alphanumeric display. This line also automatically displays FAILSAFE if a transmitter or sensor failure has occurred. Transmitter Operational Status Check Either displays MODULE WORKING PROPERLY message or displays any activated internal error messages. Portable A single indicator can be used for multiple transmitters. Simply plug it in, make desired readings and/or adjustments to the transmitter, unplug the indicator, and install it in the next transmitter. SENSOR MATCHING Sensor accuracy can be the largest error in a temperature measurement. Foxboro offers standard and high accuracy RTDs for improved measurement accuracy. In addition, the sensor s Callendar-Van Dusen coefficients can be entered into the RTT25, which greatly improves the overall measurement accuracy. BASIC TRANSMITTER PLUG-IN INDICATOR LCD INDICATOR WITH PUSHBUTTONS Figure 2. LCD Indicator/Configurator Option TRUE 4-WIRE DUAL RTD MEASUREMENT The RTT25 has eight sensor screws to allow for the improved measurement accuracy and ambient temperature correction of 4-wire RTD measurements. Some manufacturers use less than eight sensor screws and the installation instructions mention that if you want dual 4-wire RTD measurement, you should leave the unneeded leads disconnected and insulated with electrical tape. This approach will convert the 4-wire RTDs into 3-wire RTDs. REDUNDANT OPERATION When configured for dual redundant measurement, if sensor #1 fails, the measurement is immediately switched to sensor #2 without interrupting the output signal. The transmitter diagnostics will also send a message to any remote configurator that sensor #1 has failed. In addition, the optional LCD Indicator will flash FAILSAFE to alert the user to change the sensor. REAL WORLD PERFORMANCE The transmitter nonvolatile memory stores many coefficients to eliminate errors. Every transmitter is factory tested from -40 to +85 C (-40 to +185 F) ambient temperature, and the error coefficients, along with the curves for all sensor types, are stored in the nonvolatile memory. Therefore, the accuracy specification is applicable merely by choosing the sensor type and calibrated range, without the need for any calibration equipment. In addition, the internal cold junction sensor not only compensates for a thermocouple measurement, but its temperature is used to compensate any ambient temperature error, no matter what sensor type is selected.

4 Page 4 INSTALLATION ASSISTANT Let Foxboro be your Installation Assistant. When you order a transmitter with an integral sensor and thermowell, everything is assembled, tagged, wired, calibrated, and configured to your specifications. Just open the shipping container and install. This feature is ordered by specifying Package Configuration Code L or M, along with Option -D2. See Figure 3. SENSOR AND OUTPUT TERMINAL Wiring some temperature transmitters can be difficult due to the number of connections and space limitations inside the housing. Foxboro has streamlined the wiring by using spring loaded Phoenix connectors. Just strip some of the insulation off the wires and simply push the wires into the connector. Also, the transmitter is labeled with the most popular sensor connections to eliminate the need to read the instruction manual. RUGGED AND RELIABLE SENSORS Foxboro supplied integral sensors are high quality and rugged construction. The RTDs are 4-wire highvibration resistant wire-wound construction designed for maximum accuracy and longevity. THERMOWELL WITH EXTERNAL THREAD SHOWN INSERTION LENGTH EXPLOSIONPROOF UNION RTT25 WITH ALUMINUM OR 316 ss HOUSING Figure 3. RTT25 with Integral Sensor with Thermowell ULTIMATE SPARE TRANSMITTER The RTT25 is available with single or with dual measurement capabilities with slight added cost. Keeping a dual measurement transmitter as a spare allows it to be the replacement for any existing temperature transmitter. FIELDBUS TECHNOLOGY INTRODUCTION The FOUNDATION fieldbus is an all digital, serial, twoway communication system which interconnects field devices, such as transmitters, actuators, and controllers. It is a Local Area Network (LAN) with built-in capability to distribute control application across the network. This technology consists of the Physical Layer, the Communication Stack, and the User Application Blocks. Physical Layer Standards The Fieldbus Foundation uses IEC and ISA S50.02 Physical Layer Standards as references to define, as a minimum, the signaling and electrical properties of a fieldbus device s Physical Layer interface. The properties of these transmitters are: Polarity Independent Open Circuit Level of 35 V dc maximum Intrinsically Safe Parameters per table below. Parameter Recommended Value Approval Voltage 24 V dc Approval Current 250 ma Input Power 1.2 W Residual Capacitance < 5 nf Residual Inductance < 20 µh Communication Stack The Communication Stack comprises a Fieldbus Access Sublayer (FAS), a Data Link Layer (DLL), and a Fieldbus Message Specification (FMS). The Fieldbus Access Sublayer (FAS) provides: Client/Server VCR (Virtual Communication Relationship) This is used for queued, unscheduled, user-initiated, one-to-one communication between the devices on the fieldbus; typically user-initiated requests, such as set-point changes, alarm acknowledgments, and device uploads/downloads. Report Distribution VCR Typically allows fieldbus devices to send alarm notifications to operator console. Publisher/Subscriber VCR Allows fieldbus device to publish data, and send function block I/O data, such as transmitter process variable and primary output data to operator console.

5 Page 5 Communication Stack (Cont.) The Data Link Layer (DLL) provides: Scheduled Communication As authorized by the Link Active Scheduler (LAS) Unscheduled Communication This allows all devices on the fieldbus to send unscheduled messages between the transmission of scheduled messages. The Fieldbus Message Specification (FMS) FMS services allow user applications to send messages to each other across the fieldbus. The FMS describes communication services, message formats, and the protocol required for the user application. User Application Blocks These are software blocks which represent different types of user application functions. The types of blocks used are Resource Blocks, Function Blocks, and Transducer Blocks (see Figure 4). User Application Blocks (Cont.) Resource Block (One per Device) This block identifies the transmitter and includes data such as the device name, serial number, device description (DD), manufacturer ID, device type, device revision, DD revision, and diagnostics. There are over 40 available parameters in the resource block Analog Input (AI) Function Block Analog Input (AI) function blocks contain the configurable parameters needed to define the measurement for use with other function blocks. Available parameters in the AI block include revision level, tag description, alarms, process variables, transducer scale values, and strategy. Transducer Block The transducer block contains the actual measurement(s). Other parameters include the calibrated range, EGUs, sensor range limits, sensor configuration, linearization, reranging, temperature compensation, and diagnostics. Configurable Input(s) RTD, T/C, ma, mv, ohm and External Cold Junction Input/ Output Isolation Analog to Digital Converter Input Multiplexer Transducer Block Parameters Include Actual Measurement(s) EGU's Calibrated Range Sensor Range Limits Sensor Configuration Linearization Reranging Temperature Compensation Diagnostics User Application Blocks Nonvolatile Memory Complete Configuration Correction Coefficients Factory Calibration Curves Self-Calibration Voltage Standards Internal Cold Junction Resource Block Parameters Include Device Description (DD) DD Revision Device Type Device Type Revision Manufactures ID Diagnostics Function Blocks Single Sensor AI Dual Sensor AI1, AI2, AI3 Communication Modem FOUNDATION fieldbus: kbits/s + Optional LCD Indicator with Pushbuttons for Local Configuration To Fieldbus Network Figure 4. RTT25 Functional Block Diagram with FOUNDATION Fieldbus

6 Page 6 OPERATING, STORAGE, AND TRANSPORTATION CONDITIONS Influence Reference Operating Conditions Operative Limits(a) Storage and Transportation Limits Ambient Temperature Without Integral Display With Integral Display 24 ±2 C (75 ±3 F) 24 ±2 C (75 ±3 F) -40 to +85 C (-40 to +185 F) -29 to +70 C (-20 to +158 F) -54 to +85 C (-65 to +185 F) -54 to +85 C (-65 to +185 F) Relative Humidity 50 ±10% 0 to 95% (noncondensing) 0 to 95% (noncondensing) Supply Voltage (by Fieldbus) 24 ±0.5 V dc 9 to 32 V dc Not Applicable Vibration Negligible 19 mm (0.75 in) Double Amplitude from 5 to 9 Hz 0 to 30 m/s 2 (0 to 3 g )(b) from 9 to 500 Hz (a) Temperature operative limit extended to -50 C (-58 F) using Optional Selection -J. (b) 10 m/s (1g) maximum with Package Configuration Code M, T, or Y. PERFORMANCE SPECIFICATIONS (1) 107 mm (42 in) Drop in Shipping Container Accuracy (1) Refer to Table 1. The accuracy specification is applicable merely by choosing a sensor type and calibrated range without the need for any calibration equipment. Long-Term Stability <0.05% of input reading per year Ambient Temperature Effect Error is less than 1/2 the reference accuracy plus 0.1 C per 28 C (50 F) Relative Humidity Effect (Noncondensing) <0.01 mv; <0.05 Ω; from 0 to 95% RH Supply Voltage, Output Load, Vibration, and Mounting Position Effects Negligible within normal operating conditions Switching and Indirect Lightning Transients Transmitter can withstand a transient surge to 2000 V common mode or to 1000 V normal mode without permanent damage. Output shift is <1.0%. (Per ANSI/IEEE C and IEC Std ) FUNCTIONAL SPECIFICATIONS Output Signal FOUNDATION fieldbus digital, serial, two-way communication system that runs at kbits/s. The Manchester-encoded digital output signal is superimposed on the dc power signal on the bus, and conforms to IEC and ISA The transmitter output can be linear with temperature ( F, C, K, or R), linear with input (mv, ohms, or ma), or linear with Dewpoint. The internal or external Cold Junction (CJ) sensor automatically compensates thermocouple measurements. Bus Sizing Parameters Current Consumption: 15 ma, nominal Minimum Voltage: 9 V dc Virtual Communication Relationships: 20 VCR Input Types and Range Limits Refer to Table 1. Span Limits 5 C (10 F) minimum; see Table 1 for maximum Engineering Units The transmitter electronic database can be configured for ohms, millivolts, milliamps, Fahrenheit, Celsius, Kelvin, or Dewpoint. Two-Wire Transmitter The same two wires are used for input power, output signal, and remote communication. Field Wiring The transmitter FOUNDATION fieldbus wiring termination is polarity independent; therefore the device cannot be wired incorrectly. Isolation 500 V ac, rms (1) Performance stated under reference operating conditions with power supply filter set to standard, damping set to none, noise filtering and intelligent smoothing time set to 10 s. Accuracies stated include linearity, hysteresis, and repeatability.

7 Page 7 Input Type Model Code See Note Table 1. Range Limits, Maximum Span, and Accuracy Range Limits Maximum Span Digital Accuracy(a,k) C F C F C F RTD (2, 3, or 4 wire) Pt100 DIN/IEC Q b -200 and and ±0.05 ±0.09 Pt100 DIN/IEC A c -200 and and ±0.05 ±0.09 Pt100 SAMA P d -200 and and ±0.05 ±0.09 Ni 200 D e -130 and and ±0.44 ±0.79 Ni 120, Minco G -80 and and ±0.03 ±0.05 Ni 100 I f -60 and and ±0.04 ±0.07 Cu 10 F g -70 and and ±0.51 ±0.92 Thermocouple Type B B h,l 0 and and ±0.51 ±0.92 Type C C h 0 and and ±0.38 ±0.68 Type E E h -270 and and ±0.08 ±0.14 Type J J h -210 and and ±0.11 ±0.20 Type K K h -270 and and ±0.14 ±0.25 Type L L j -200 and and ±0.13 ±0.23 Type N N h -270 and and ±0.15 ±0.27 Type R R h -50 and and ±0.42 ±0.76 Type S S h -50 and and ±0.49 ±0.88 Type T T h -270 and and ±0.10 ±0.18 Type U U j -200 and and ±0.09 ±0.16 Other Millivolt M -15 and +115 mv dc 130 mv dc ±6 µv Resistance O 1 and 500 Ω 500 Ω ±20 mω Milliamp H 0 to 25 ma 25 ma 0.03 ma Custom Z 2- to 22-point user-configurable curve (a) Digital accuracy is either the listed value or ±0.01% of span, whichever is greater. For thermocouples only, add the applicable cold junction error, ±0.2 C (±0.5 F), to the digital accuracy. (b) DIN/IEC 751; alpha = (1984) ASTM-B Standard Accuracy. (c) DIN/IEC 751; alpha = (1984) ASTM-A High Accuracy (d) SAMA Standard RC 21-4; alpha = (e) Foxboro NR 226/227. Refer to TI a. (f) DIN (g) Foxboro CR 228/229. Refer to TI a. (h) NIST Monogram 125, DIN IEC 584. (j) DIN (1985). (k) Does not include sensor accuracy. (l) May exhibit a decrease in performance at temperatures below 43 C (109 F). Input Response Time With minimum damping, the 90% response time for an 80% input step is 1.2 seconds. Electronic Damping Damping is configurable to settings of 0.0 (none), 0.25, 0.50, 1, 2, 4, 8, 16, and 32 seconds. Intelligent Noise Filtering The Intelligent Noise Filtering algorithm eliminates noise while still maintaining fast response to rapid input changes. Supply Voltage 9 to 32 V dc, by a specially designed fieldbus power source connected to the bus. For intrinsically safe (I.S.) applications, the supply voltage allowed can vary depending on the rating of the I.S. barrier. Host/Transmitter Communication You may monitor, configure, and/or calibrate your transmitter using the following: The Optional LCD Indicator with On-Board Pushbuttons (not for calibration) I/A Series System with fieldbus support Any other FOUNDATION Fieldbus Certified Host

8 Page 8 FUNCTIONAL SPECIFICATIONS (Cont.) Configurable Parameters The following are some of the parameters that can be configured using FOUNDATION Fieldbus protocol: DESCRIPTORS Resource State Message OUTPUT Engineering Units (EGU) (1) Percent (%) Linearization Mode INPUT Input Type (Refer to Table 1) (1) Lower Range Value (LRV) (1) Upper Range Value (URV) (1) Cold Junction Cold Junction EGU OTHER Sensor Fault Detection (On/Off) (1) Power Supply Frequency (50/60 Hz) Damping Intelligent Smoothing Time Resource Diagnostic Parameters Calibration and Date of Last Calibration Calibrator's Name FOUNDATION Fieldbus Parameters (2) Tagging Hardware and Software The permanently attached stainless steel data plate and the transmitter electronic tag number is factory configured at no charge using the customer supplied tagging information. Installation Characteristics Parameter Specification Intrinsically Safe No Maximum No. of Devices(a) 32 Maximum Cable Length(b) 1900 m (6234 ft) Maximum Spur Length(b)(c) 120 m (394 ft) (a) Device quantity may be less; depends on power consumed, type of cable used, and accessory devices added. (b) Maximum cable length (control bus plus spurs) is based on use of #18 AWG (0.8 mm 2 ) shielded twisted pair cable. See Installation Manual for the precise relationship between cable length, spur lengths, cable type, and number of devices. (c) Minimum spur length is 1 m (3.3 ft). Installation Topologies Figure 5 shows a typical fieldbus installation. Note the locations of the fieldbus terminators, intrinsically safe (I.S.) barrier, and I.S. and non-i.s. devices. Other typical installation topologies are shown in Figure 6, including a bus with spurs, a daisy chain, and a tree. Figure 7 shows a mixed topology installation where a bus with spurs, daisy chain, and tree are connected in series. NONHAZARDOUS AREA LOCATIONS FIELDBUS TERMINATOR FIELDBUS HOST FIELDBUS POWER SUPPLY HAZARDOUS AREA LOCATIONS I.S. FIELDBUS TERMINATOR (ONLY REQUIRED WHEN I.S. BARRIER IS ISOLATION TYPE) INTRINSICALY SAFE (I.S.) FIELDBUS TERMINATOR INTRINSICALLY SAFE BARRIER FIELDBUS DEVICES (NOT INTRINSICALLY SAFE) I.S. FIELDBUS TERMINATOR (ONLY REQUIRED WHEN I.S. BARRIER IS ISOLATION TYPE) INTRINSICALLY SAFE FIELDBUS DEVICES Figure 5. Typical FOUNDATION Fieldbus Wiring Diagram with Bus Topology (1) Also accessible with Optional LCD Indicator/Configurator. (2) Not configurable via Optional LCD Indicator/Configurator.

9 Page 9 HOST COMPUTER NOTE Terminators and Power Supply not shown HOST COMPUTER NOTE Terminators and Power Supply not shown FIELDBUS INTERFACE JUNCTION BOX FIELDBUS INTERFACE TERMINATE AT JUNCTION BOX BUS WITH SPURS DAISY CHAIN TREE Figure 6. Miscellaneous Installation Topologies BUS WITH SPURS DAISY CHAIN TREE Figure 7. Installation with Mixed Topologies PHYSICAL SPECIFICATIONS Basic Transmitter (Package Code B) (1) Enclosed in polycarbonate material Enclosure Construction HOUSING (Package Codes S, W, L): Epoxy-coated, low-copper aluminum HOUSING (Package Codes T, Y, M): 316 ss (CF-8M/UNS-J92900) HOUSING COVER O-RING UV Stabilized Buna-N Union Coupling for Thermowell Mount Zinc-Plated Steel for Foxboro Code L housing, or with user-supplied thermowell option -D5 (Codes L or M housing). See Model Code. Stainless Steel for Foxboro Code M housing, or with Option -H2. See Model Code. Environmental Protection Housing: NEMA 4X, IP66 Mounting Options Option Code Bracket Hardware Mounting -M1 Epoxy-Coated Steel Plated Steel Set(a) -M2 Stainless Steel Stainless Steel DIN2 Rai(b) -D1 Aluminum and Plastic Plated Steel (a) For mounting transmitter to surface, or DN50 or 2-in pipe. Package Configuration Codes S or T only. (b) Hardware provided to allow mounting of Basic Transmitter Package Code B to DIN rail provided by user. Transmitter must be mounted in EMI-Shielded enclosure provided by user. Approximate Transmitter Mass BASIC 0.13 kg (0.28 lb) SURFACE MOUNT (ALUMINUM) 1.47 kg (3.25 lb) SURFACE MOUNT (316 SS) 3.25 kg (7.25 lb) WITH 3-LINE INDICATOR Add 0.06 kg (0.13 lb) (1) Basic Transmitter Package must be mounted in EMI-Shielded enclosures provided by user.

10 Page 10 Testing Laboratory, Type of Protection, and Area Classification ATEX flameproof, Zone 1, II 2 G, EEx d, IIC; hazardous locations. CSA explosionproof, Class I, Division 1, Groups B, C, and D; dust-ignitionproof, Class II, Division 1, Groups E, F, and G; Class III, Division 1; and Class I, Division 2, Groups A, B, C, and D; hazardous locations. FM explosionproof, Class I, Division 1, Groups B, C, and D; dust-ignitionproof, Class II, Division 1, Groups E, F, and G; Class III, Division 1; and Class I, Division 2, Groups A, B, C, D, F, and G; hazardous locations. ELECTRICAL SAFETY SPECIFICATIONS Application Conditions With Package Configurations S and T only. Temperature Class T6. With Package Configurations L, M, S, and T only. Temperature Class T6 at 40 C (104 F) and T5 at 85 C (185 F) maximum ambients. With Package Configurations L, M, S, and T only. Temperature Class T6 at 40 C (104 F) and T5 at 85 C (185 F) maximum ambients. Electrical Safety Design Code ED CD See Note (a) FD See Note (a) (a) FM approval and CSA certification of the Model RTT25 for the explosionproof rating listed included pressure piling tests with various lengths of conduit to ensure that conduit seals per NEC 501-5(a)1 within 475 mm (18 inches) of the housing are NOT required. NOTE The RTT25 Transmitter has been designed to meet the Electrical Safety descriptions listed above. For detailed information, or status of testing laboratory approvals or certification, contact Invensys Foxboro.

11 Page 11 MODEL CODES Model Code Basic Transmitter Unit for DIN Rail Mount, Panel Mount, or Replacement; No Sensor Description Intelligent Temperature Transmitter Model RTT25 Output Signal and Communication Protocol Digital, FOUNDATION fieldbus F Input Configuration Single Input (one sensor) 1 Dual Independent Input Channels (two sensors) 2 Dual Input Channels Configured for Redundant (two sensors) 3 Dual Input Channels Configured for Average (two sensors) 4 Dual Input Channels Configured for Difference (two sensors) 5 Package Configuration (see Figure 1) Basic Transmitter Unit (No Housing) Used for DIN Rail Mount, Panel Mount, or Replacement (a) Sensor Length None (Not Applicable) Measurement Input Type (Software Selectable) None Specified Factory Default to Code Q Thermocouple, Type B Thermocouple, Type C Thermocouple, Type E Thermocouple, Type J Thermocouple, Type K Thermocouple, Type L Thermocouple, Type N Thermocouple, Type R Thermocouple, Type S Thermocouple, Type T Thermocouple, Type U RTD, Platinum, 100 Ω, DIN/IEC 751 (ASTM-B Standard Accuracy) RTD, Platinum, 100 Ω, DIN/IEC 751 (ASTM-A High Accuracy) RTD, Platinum, 100 Ω, SAMA RTD, Nickel, 200 Ω, (NR-226/227) RTD, Nickel, 120 Ω, Minco RTD, Nickel, 100 Ω, DIN RTD, Copper 10 Ω Milliamp Input (4 to 20 ma nominal, 0 to 25 ma maximum) Millivolt Input Ohms Input Custom Input (up to 22 points) Electrical Safety No Approvals or Certifications B N X B C E J K L N R S T U Q A P D G I F H M O Z ZZ Optional Selections Refer to Optional Selection Codes section further in document (a) Material Certificate (AS Reference CERT-C) is not applicable to the basic transmitter.

12 Page 12 MODEL CODES (Cont.) Model Code Surface or Pipe Mount Transmitter, No Sensor Description Intelligent Temperature Transmitter Model RTT25 Output Signal and Communication Protocol Digital, FOUNDATION fieldbus F Input Configuration Single Input (one sensor) 1 Dual Independent Input Channels (two sensors) 2 Dual Input Channels Configured for Redundant (two sensors) 3 Dual Input Channels Configured for Average (two sensors) 4 Dual Input Channels Configured for Difference (two sensors) 5 Package Configuration and Housing Material (see Figure 1) Surface or Pipe Mount, Epoxy Coated Aluminum Housing with 1/2 NPT Conduit Threads Explosionproof Housing; no sensor (a) Surface or Pipe Mount, Stainless Steel Housing with 1/2 NPT Conduit Threads Explosionproof Housing; no sensor (a) Sensor Length None (Not Applicable) Measurement Input Type (Software Selectable) None Specified Factory Default to Code Q Thermocouple, Type B Thermocouple, Type C Thermocouple, Type E Thermocouple, Type J Thermocouple, Type K Thermocouple, Type L Thermocouple, Type N Thermocouple, Type R Thermocouple, Type S Thermocouple, Type T Thermocouple, Type U RTD, Platinum, 100 Ω, DIN/IEC 751 (ASTM-B Standard Accuracy) RTD, Platinum, 100 Ω, DIN/IEC 751 (ASTM-A High Accuracy) RTD, Platinum, 100 Ω, SAMA RTD, Nickel, 200 Ω, (NR-226/227) RTD, Nickel, 120 Ω, Minco RTD, Nickel, 100 Ω, DIN RTD, Copper 10 Ω Milliamp Input (4 to 20 ma nominal, 0 to 25 ma maximum) Millivolt Input Ohms Input Custom Input (up to 22 points) Electrical Safety ATEX, Flameproof, Zone 1, II 2 GD, EEx d IIC CSA, Explosionproof FM, Explosionproof No Approvals or Certifications S T N X B C E J K L N R S T U Q A P D G I F H M O Z ED CD FD ZZ Optional Selections Refer to Optional Selection Codes section further in document (a) Material Certification (AS Reference CERT-C) not applicable.

13 Page 13 MODEL CODES (Cont.) Model Code Transmitter with Integrally Mounted Bare Sensor Description Intelligent Temperature Transmitter Model RTT25 Output Signal and Communication Protocol Digital, FOUNDATION fieldbus F Input Configuration Single Input (one sensor) 1 Package Configuration and Housing Material (see Figure 1) Epoxy Coated Aluminum Housing with 1/2 NPT Conduit Threads (explosionproof) with Integrally Mounted Bare Sensor Stainless Steel Housing with 1/2 NPT Conduit Threads (explosionproof) with Integrally Mounted Bare Sensor W Y Sensor Length (U + T Length) - See CAUTION below 2 in (50 mm) (a) A 2.5 in (64 mm) (a) B 3 in (76 mm) (a) C 3.5 in (89 mm) D 4 in (102 mm) E 4.5 in (114 mm) F 5 in (127 mm) G 5.5 in (140 mm) H 6 in (152 mm) J 7 in (178 mm) K 8 in (203 mm) L 9 in (229 mm) M 10 in (254 mm) P 11 in (279 mm) Q 12 in (305 mm) R 18 in (457 mm) S 24 in (610 mm) T 30 in (762 mm) U 36 in (914 mm) V Custom Length per Sales Order up to 120 in (up to 3 m) maximum X Measurement Input Type (Software Selectable) Thermocouple, Type E Thermocouple, Type J Thermocouple, Type K Thermocouple, Type T RTD, 100 Ω, Platinum, DIN/IEC 751 (ASTM-B Standard Accuracy) RTD, 100 Ω, Platinum, DIN/IEC 751 (ASTM-A High Accuracy) RTD, 100 Ω, Platinum, SAMA Electrical Safety No Approvals or Certifications E J K T Q A P ZZ Optional Selections Refer to Optional Selection Codes section further in document (a) RTD lengths less than 3.5 in (89 mm) will need insulation to avoid measurement error due to heat radiation.

14 Page 14 MODEL CODES (Cont.) Model Code Transmitter with Integrally Mounted Sensor for Thermowell Mount Description Intelligent Temperature Transmitter Model RTT25 Output Signal Digital, FOUNDATION fieldbus F Input Configuration Single Input (one sensor) 1 Package Configuration and Housing Material (see Figure 1) (a) Epoxy Coated Aluminum Housing with 1/2 NPT Conduit Thread (explosionproof) With Integrally Mounted Sensor for Thermowell Mount Stainless Steel Housing with 1/2 NPT Conduit Thread (explosionproof) With Integrally Mounted Sensor for Thermowell Mount L M Sensor Length (U + T Length) - See CAUTION below 2 in (50 mm) (b) A 2.5 in (64 mm) (b) B 3 in (76 mm) (b) C 3.5 in (89 mm) D 4 in (102 mm) E 4.5 in (114 mm) F 5 in (127 mm) G 5.5 in (140 mm) H 6 in (152 mm) J 7 in (178 mm) K 8 in (203 mm) L 9 in (229 mm) M 10 in (254 mm) P 11 in (279 mm) Q 12 in (305 mm) R 18 in (457 mm) S 24 in (610 mm) T 30 in (762 mm) U 36 in (914 mm) V Custom Length per Sales Order 120 in (3 m) maximum X Input Measurement Type (Software Selectable) Thermocouple, Type E Thermocouple, Type J Thermocouple, Type K Thermocouple, Type T RTD, 100 Ω, Platinum, DIN/IEC 751 (ASTM-B Standard Accuracy) RTD, 100 Ω, Platinum, DIN/IEC 751 (ASTM-A High Accuracy) RTD, 100 Ω, Platinum, SAMA Electrical Safety CSA, Explosionproof (Must also select Option -D2 Thermowell Attached) FM, Explosionproof (Must also select Option -D2, Thermowell Attached) No Approvals or Certifications (Not available with Option -D2, Thermowell Attached) E J K T Q A P CD FD ZZ Optional Selections Refer to Optional Selection Codes on next page (a) Option -H2 is optional with Package Configuration Code L, but standard construction with Package Configuration Code M. (b) RTD lengths less than 3.5 in (89 mm) will need insulation to avoid measurement error due to heat radiation.! CAUTION Sensor length (U + T) must equal the thermowell U + T length. For example, if a 6 in (152 mm) long sensor is selected, the thermowell must also have a U + T length of 6 in (152 mm)

15 Page 15 Optional Selection Codes MODEL CODES (Cont.) Option Description Used with Package Configuration Code: B S T W Y L M Option Code Custody Transfer Lock and Seal (a) Yes Yes Yes Yes Yes Yes -A1 Custom Database Configuration Yes Yes Yes Yes Yes Yes Yes -C2 DIN Rail Mounting (b) Yes -D1 Ship with Thermowell Attached (c) Yes Yes -D2 Adapter Plate for Replacement of RTT20 Transmitter(f) Yes -D3 Stainless Steel Union Coupling (e) Yes (e) -H2 Temperature Operative Limits Extended to -50 C (-58 F) Yes Yes Yes Yes Yes Yes Yes -J Delete Instruction Book Yes Yes Yes Yes Yes Yes Yes -K1 Three-Line LCD Indicator and Configurator Yes Yes Yes Yes Yes Yes Yes -L3 Mounting Set, Epoxy-Coated Steel (f) Yes Yes -M1 Mounting Set, 316 ss(j) Yes Yes -M2 Supplemental Customer Tag (g) Yes Yes Yes Yes Yes Yes Yes -T Example: RTT25-F3SNQFD-L3M1 (a) Custody Transfer Lock and Seal is standard construction with Electrical Safety Code ED. (b) Hardware only; DIN rail is provided by user. (c) Required selection with Electrical Safety Codes CD or FD when Package Code L or M is used. Also, not available with Electrical Safety Code ZZ. (d) This option provides for mounting an RTT25 Basic Transmitter into an RTT20 Transmitter enclosure. (e) Union coupling Option -H2 is standard construction with Package Configuration Code M. (f) Mounting set for mounting Package Configuration Codes S and T to a surface, or DN 50 or 2-in pipe. (g) This stainless steel tag is attached to the transmitter with wire. It provides 1.5 x 3.5 in (40 x 90 mm) of surface area for the user to add further tag data. NOTE For further information relating to options, accessories, and services available with the RTT25 Temperature Transmitter, refer to PSS 2A-1Z9 F.

16 Page 16 SUGGESTED RFQ SPECIFICATIONS The manufacturer shall provide a microprocessor-based temperature transmitter with FOUNDATION fieldbus digital output which is linear to the measured temperature as follows: Electronics: Sensors: Input Configuration: Self-Calibration: Enclosure: Configurators: LCD Indicator: Accuracy: Model Code: Sealed Against Moisture All Popular RTDs, Thermocouples, mv, ma, and ohms Single or Dual Sensors Automatic with No Prompt Required Suitable for Remote or Integral Sensor Mounting (NEMA 4X and IP66) Integral and Remote Required Must Display Faults and Tag Number, and have Configuration Pushbuttons 0.1 C for a 100 Ω Pt RTD at 0 to 100 C Span Foxboro Model RTT25, or Equivalent ALTERNATE SUGGESTED RFQ SPECIFICATIONS The vendor shall furnish the following instrument for sensing temperature (single or dual sensors) and transmitting a Foundation fieldbus digital output signal. The instrument shall measure a temperature of to C using a thermocouple or RTD. The transmitter shall be microprocessor-based with automatic selfcalibration to virtually eliminate drift and ambient temperature errors. All diagnostic messages must be automatic and transmitted to a local display or remote configurators. The transmitter housing should be suitable for integral or remote mounting of the sensor and shall be approved for use in hazardous locations (intrinsically safe and/or explosionproof). The basic transmitter shall be sealed and protected against moisture and other contaminants. The transmitter shall be a Foxboro I/A Series Temperature Transmitter, Model RTT25, or approved equivalent.

17 Page 17 DIMENSIONS NOMINAL mm in BASIC UNIT - PACKAGE CONFIGURATION CODE B TWO MOUNTING HOLES, ON 71 mm (2.8 in) DIAMETER BOLT CIRCLE DIA. FOUR SENSOR TERMINAL; TWO PLACES FOR DUAL MEASUREMENT SHOWN WITH OPTIONAL LCD INDICATOR/ CONFIGURATOR DIN RAIL MOUNTING HARDWARE OPTION -D1 DIN RAIL (BY USER) OUTPUT TERMINALS SHOWN WITHOUT LCD INDICATOR/CONFIGURATOR SURFACE OR PIPE MOUNT TRANSMITTER WITH REMOTE SENSOR (PACKAGE CODE S OR T) DN 50 OR 2 in PIPE SUPPLIED BY USER U-BOLT MOUNTING SET OPTIONS -M1 OR -M2 FOR PIPE OR SURFACE MOUNTING. (U-BOLT NOT REQUIRED FOR SURFACE MOUNTING.) X NOTE /2 NPT, TWO PLACES PG13.5 OPTIONAL PIPE OR SURFACE MOUNTING BRACKET HOUSING MATERIAL 316 ss ALUMINUM DIMENSION X (NOTE 1) WITHOUT WITH INDICATOR INDICATOR NOTES 1. ALLOW 51 mm (2 in) CLEARANCE FOR COVER REMOVAL. 2. EXTERNAL COVER LOCK AND GROUND SCREW LOCATION FOR ELECTRICAL CODES EA, ED, AND KN, OR OPTIONAL FEATURE -A1. TRANSMITTER WITH INTEGRAL SENSOR (PACKAGE CODE L, M, W, OR Y) BARE SENSOR 1/2 NPT A A NOTE: A = ELEMENT INSERTION LENGTH U = THERMOWELL INSERTION LENGTH T = THERMOWELL LAGGING LENGTH SENSOR AND THERMOWELL SENSOR AND THERMOWELL WITH LAGGING 25 U U U U + T T

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20 Page ORDERING INSTRUCTIONS Model Code Calibrated Range Thermowell Part Number or Model, if required (Refer to PSS 3-3C1 A and PSS 3-3D1 A for W Series and T Series Thermowells, respectively.) Remote Configurator, if required Customer Tag Data OTHER M&I PRODUCTS Invensys Foxboro provides a broad range of measurement and instrument products, including solutions for pressure, flow, analytical, positioners, temperature, controlling and recording. For a listing of these offerings, visit the Invensys Foxboro web site at: 33 Commercial Street Foxboro, MA United States of America Inside U.S.: Outside U.S.: or contact your local Foxboro representative. Facsimile: Invensys, Foxboro, FoxCom, and I/A Series are trademarks of Invensys plc, its subsidiaries, and affiliates. All other brand names may be trademarks of their respective owners. Copyright Invensys Systems, Inc. All rights reserved MB 010 Printed in U.S.A. 0405