Endress+Hauser TMR31 Operating Instructions Manual

Metric, compact rtd 4-20 ma thermometer for industrial and hygienic applications

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BA00215R/09/EN/20.25-00

71695836

2025-02-28

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Operating Instructions

Compact thermometer

TMR31, TMR35

Metric, compact RTD 4-20 mA thermometer for

industrial and hygienic applications

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Services

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Page 1 Products Solutions Services BA00215R/09/EN/20.25-00 71695836 2025-02-28 Operating Instructions Compact thermometer TMR31, TMR35 Metric, compact RTD 4-20 mA thermometer for industrial and hygienic applications...
Page 2: Table Of Contents
Table of contents Compact thermometer TMR31, TMR35 Table of contents About this document ... 3 Disposal ......17 Document function .
Page 3: About This Document
Compact thermometer TMR31, TMR35 About this document About this document Document function These Operating Instructions contain all the information required in the various life cycle phases of the device: from product identification, incoming acceptance and storage, to installation, connection, operation and commissioning, through to troubleshooting, maintenance and disposal.
Page 4: Documentation
For an overview of the scope of the associated Technical Documentation, refer to the following: • Device Viewer (www.endress.com/deviceviewer): Enter the serial number from the nameplate • Endress+Hauser Operations app: Enter serial number from nameplate or scan matrix code on nameplate. Basic safety instructions Requirements for the personnel...
Page 5: Intended Use
Compact thermometer TMR31, TMR35 Basic safety instructions ‣ Before starting work, read and understand the instructions in the manual and supplementary documentation as well as the certificates (depending on the application). ‣ Follow instructions and comply with basic conditions. The operating personnel must fulfill the following requirements: ‣...
Page 6: Incoming Acceptance And Product Identification
Incoming acceptance and product identification Compact thermometer TMR31, TMR35 Incoming acceptance and product identification Incoming acceptance On receipt of the delivery: Check the packaging for damage.  Report all damage immediately to the manufacturer. Do not install damaged components. Check the scope of delivery using the delivery note.
Page 7: Name And Address Of Manufacturer
• Compact thermometer • Printed copy of the Brief Operating Instructions • Accessories ordered Name and address of manufacturer Name of manufacturer: Endress+Hauser Wetzer GmbH + Co. KG Address of manufacturer: Obere Wank 1, D-87484 Nesselwang or www.endress.com Storage and transport...
Page 8: Mounting
Mounting Compact thermometer TMR31, TMR35 3.4.1 Humidity Condensation according to IEC 60068-2-33: • Head transmitter: Permitted • DIN rail transmitter: Not permitted Maximum relative humidity: 95% according to IEC 60068-2-30 Pack the device for storage and transportation in such a way that it is reliably protected against impact and external influences.
Page 9 Compact thermometer TMR31, TMR35 Mounting ≥ 3° ≥ 3° A0012591  2 Installation examples 1, 2 Perpendicular to the flow direction, installed at a min. angle of 3 ° to ensure self-draining On elbows Inclined installation in pipes with a small nominal diameter Insertion length The requirements of the EHEDG and the 3-A Sanitary Standard must be adhered to.
Page 10 Mounting Compact thermometer TMR31, TMR35 A0040345  3 Detailed installation instructions for hygiene-compliant installation Milk pipe connection according to DIN 11851, only in conjunction with EHEDG-certified, self- centering sealing ring Sensor with milk pipe connection Groove slip-on nut Counterpart connection Centering ring R0.4...
Page 11: Mounting The Thermometer
Compact thermometer TMR31, TMR35 Mounting In the case of weld-in connections, exercise the necessary degree of care when performing the welding work on the process side: Use suitable welding material. Flush-weld or weld with welding radius ≥ 3.2 mm (0.13 in).
Page 12: Post-Mounting Check
Electrical connection Compact thermometer TMR31, TMR35 Threaded version Tightening torque [Nm] Process connection, metal sealing system Compression fitting, cylindrical, Elastosil seal Replace with a suitable seal if necessary. Replace the seals following disassembly. As all threads must be firmly tightened, using the appropriate torques.
Page 13: Ensuring The Degree Of Protection
Compact thermometer TMR31, TMR35 Electrical connection 2 nc 4 nc M12x1 (4...20 mA) Pt100 10...35 V (4...20 mA) A0020176  4 Pin assignment, device plug Version with transmitter, M12 plug, 4-pin Version without transmitter, Pt100, 4-wire connection 1: Pin 1...
Page 14: Diagnostics And Troubleshooting
Commissioning Compact thermometer TMR31, TMR35 Commissioning Post-installation check Perform the following checks prior to commissioning the measuring point: Perform the post-mounting check using the checklist →  12. Perform the post-connection check using the checklist →  13. Switching on the measuring device After applying the supply voltage, the device is in the measuring mode.
Page 15: Maintenance
Compact thermometer TMR31, TMR35 Maintenance Problem Possible cause Remedial action ‣ Heat dissipation over the measuring point. Observe the installed length of the sensor. ‣ No communication Communication cable is not connected. Check wiring and cables. Behavior of the device in the event of a fault The behavior of the output in the event of a failure is regulated in accordance with NAMUR NE43.
Page 16: Spare Parts
Repair Compact thermometer TMR31, TMR35 Spare parts Spare parts currently available for your product can be found online at: http://www.products.endress.com/spareparts_consumables. Always quote the serial number of the device when ordering spare parts! Model Order code TMR31 TMR35 Adapter upgrade TXU10 51007657 ...
Page 17: Disposal
Compact thermometer TMR31, TMR35 Accessories Disposal The device contains electronic components and must therefore be disposed of as electronic waste. Please pay particular attention to the local regulations governing waste disposal in your country. Ensure proper separation and reuse of the device components where possible.
Page 18 Accessories Compact thermometer TMR31, TMR35 Accessory Description Collar welding boss Material of parts in contact with the process 316L G½” (0.24) 30 (1.18) A0020710 Accessory Description Compression fitting • Adjustable clamping ring, for process connections G½", G¾", G1", NPT ½", etc.
Page 19: Weld-In Adapter
Compact thermometer TMR31, TMR35 Accessories Accessory Description Welding boss with sealing taper (metal-metal) • Welding boss for G½" or M12x1.5 thread • Metal-sealing; conical • Material of parts in contact with the process 316L/1.4435 30 (1.18) • Max. process pressure 16 bar (232 PSI) G½”...
Page 20: Online Tools
Accessories Compact thermometer TMR31, TMR35 Weld-in adapter A0008246 A0008251 A0008256 A0011924 A0008248 A0008253 G ¾", d=50 G ¾", d=29 for G ¾", d=55 G 1", d=53 without G 1", d=60 with G 1" for vessel- pipe-mounting with flange flange flange...
Page 21: Communication-Specific Accessory
Compact thermometer TMR31, TMR35 Accessories 10.3 Communication-specific accessory 10.3.1 Coupling Accessory Description • M12x1 coupling; elbowed, for termination of 35 (1.38) connecting cable by user • Connection to M12x1 housing connector • Body materials PBT/PA • Coupling nut GD-Zn, nickel-plated •...
Page 22: Service-Specific Accessories
• Automatic verification of exclusion criteria • Automatic creation of the order code and its breakdown in PDF or Excel output format • Ability to order directly in the Endress+Hauser Online Shop The Configurator is available at www.endress.com on the relevant product page: Select the product using the filters and search field.
Page 23: Technical Data
Compact thermometer TMR31, TMR35 Technical data Single- or two-channel active barrier for safe separation of 0/4 to 20 mA standard signal circuits with bidirectional HART transmission. In the signal duplicator option, the input signal is transmitted to two galvanically isolated outputs. The device has one active and one passive current input;...
Page 24: Power Supply
Technical data Compact thermometer TMR31, TMR35 11.2.3 Load = (U - 10 V) / 0.023 A (current output) Ω b max. b max. 15.75 V 24 V 10 V 30 V A0048582 11.2.4 Linearization/transmission behavior Temperature - linear 11.3 Power supply 11.3.1...
Page 25: Performance Characteristics
Compact thermometer TMR31, TMR35 Technical data 11.3.6 Overvoltage protection To protect against overvoltage in the power supply and signal/communication cables for the thermometer electronics, the manufacturer offers the HAW562 surge arrester for DIN rail mounting. For more detailed information, see Technical Information HAW562 surge arrester (TI01012K) .
Page 26: Long-Term Drift
Technical data Compact thermometer TMR31, TMR35 Total measured error of thermometer (sensor + electronics) Standard Designation Measuring range Measured error ME (±) • –50 to +150 °C (–58 to +302 °F) without extension neck ME = ± (0.25 K (0.48 °F) + 0.002 IEC 60751...
Page 27: Environment
Compact thermometer TMR31, TMR35 Technical data 11.5 Environment 11.5.1 Ambient temperature range –40 to +85 °C (–40 to +185 °F) 11.5.2 Storage temperature Pack the device so that it is reliably protected against impact when it is stored (and transported). The original packaging offers the best protection.
Page 28 Technical data Compact thermometer TMR31, TMR35 Device version without electronics Independent of the extension –50 to +200 °C (–58 to +392 °F) neck Device version with electronics Without extension neck –50 to +150 °C (–58 to +302 °F) With extension neck –50 to +200 °C (–58 to +392 °F)
Page 29 Compact thermometer TMR31, TMR35 Technical data P (psi) P (bar) 1500 1200 L (mm) L (in) A0008063  5 Maximum permitted process pressure Insertion length Process pressure The diagram not only considers the overpressure but also the pressure load caused by the flow, wherein a safety factor of 1.9 has been specified for operation with flow.
Page 30: Mechanical Construction
It is possible to verify the mechanical loading capacity as a function of the installation and process conditions using the online TW Sizing Module for thermowells in the Endress+Hauser Applicator software. →  17 11.6.3 Medium - state of aggregation Gaseous or liquid (also with high viscosity, e.g.
Page 31 Compact thermometer TMR31, TMR35 Technical data M12x1 M12x1 M12x1 M12x1 M12x1 M12x1 A0020192  7 Dimensions in mm (in) Insertion length L, variable 40 to 600 mm (1.6 to 23.6 in) ⌀D Diameter D 6 mm (0.25 in) ⌀H Sleeve diameter 18 mm (0.71 in)
Page 32 Technical data Compact thermometer TMR31, TMR35 Item Version Thread length L Thread length L2 max. Without extension neck, metric threaded process connection: 12 mm (0.47 in) • M14x1.5 (1 = SW/AF19) • M18x1.5 (1 = SW/AF24) Without extension neck, threaded...
Page 33 Compact thermometer TMR31, TMR35 Technical data M12x1 M12x1 M12x1 M12x1 SW/A SW/A S /AF S /AF G½” G¾”/ G3/8” G3/8” G1” (0.12) (0.25) (0.12) (0.25) A0044938  9 Dimensions in mm (in) Insertion length L, variable 40 to 600 mm (1.6 to 23.6 in) ⌀H Sleeve diameter 18 mm (0.71 in)
Page 34 Technical data Compact thermometer TMR31, TMR35 compressive load. The maximum operating temperatures can be reduced considerably in cases where abnormal conditions such as high mechanical load occur or in aggressive media. Recommended max. Description Short form temperature for Properties continuous use in air AISI 316L 650 °C (1 202 °F)
Page 35 Compact thermometer TMR31, TMR35 Technical data Dimensions Version Technical properties d D i a DN25 26 mm 42.9 mm 26 mm 29 mm 9 mm • P = 40 bar (580 psi) max. (1.02 in) (1.7 in) (1.02 in) (1.14 in) (0.35 in)
Page 36 Technical data Compact thermometer TMR31, TMR35 Form A Form B A0045091  12 Clamp according to ISO 2852 Form A: in compliance with ASME BPE Type A and Form B: in compliance with ASME BPE Type B and ISO 2852...
Page 37 Compact thermometer TMR31, TMR35 Technical data A0045092  13 Thread according to ISO 228 for weld-in adapter Liquiphant Dimensions Version G Technical properties L1 thread length 1 (SW/AF) G¾" for FTL20/31/33 • P = 25 bar (362 psi) at max.
Page 38 Technical data Compact thermometer TMR31, TMR35 Dimensions Version Technical properties d A B • P = 25 bar (362 psi) max. 69 mm 99.5 mm 82 mm 19 mm • 3-A® marked and EHEDG DN50 2xM8 (2.72 in) (3.92 in) (3.23 in)
Page 39 Compact thermometer TMR31, TMR35 Technical data Type Version Technical properties Metal sealing system G½" G3/8" = 16 bar (232 psi) max. Thermowell diameter 6 mm  Maximum torque = G½” (¼ in) 10 Nm (7.38 lbf ft) A0045095 Type Version...
Page 40: Certificates And Approvals
Technical data Compact thermometer TMR31, TMR35 11.7.7 Thermowell design, dimensions Thermometer for hygienic applications 3 (0.12) (0.12) G 3/8” G 3/8” G ½“ (0.51) 18 (0.71) (0.21) (0.21) A0018305  16 Thermowell for connection to the compact thermometer with spring-loaded cap-nut and G3/8"...
Page 41 Compact thermometer TMR31, TMR35 Technical data 11.8.2 Materials in contact with food/product (FCM) The process contact parts (FCM) are in conformity with the following European Regulations: • Regulation (EC) No 1935/2004, on materials and articles intended to come into contact with food, article 3, paragraph 1, article 5 and 17.
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