 
                  Specs at a glance
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                              AccuracyClass AA acc. to IEC 60751 
 Class A acc. to IEC 60751
 Class B acc. to IEC 60751
 Class special or standard acc. to ASTM E230
 Class 1 or 2 acc. to IEC 60584-2
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                              Response timefastest response time with thermowell t90 starting at below 10 s 
 depending on configuration
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                              Max. process pressure (static)depending on the configuration up to 100 bar 
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                              Operating temperature rangePT100 TF iTHERM StrongSens: 
 -50 °C ...500 °C
 (-58 °F ...932 °F)
 PT100 TF iTHERM QuickSens:
 -50 °C …200 °C
 (-58 °F …392 °F)
 PT100 WW:
 -200 °C ...600 °C
 (-328 °F ...1.112 °F)
 PT100 TF:
 -50 °C ...400 °C
 (-58 °F ...752 °F)
 Typ K:
 max. 1.100 °C
 (max. 2.012 °F)
 Typ J:
 max. 800 °C
 (max. 1.472 °F)
 Typ N:
 max. 1.100 °C
 (max. 2.012 °F)
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                              Max. immersion length on requestup to 4.500,0 mm (177'') 
Field of application
Intrinsically safe temperature sensor (RTD / TC assembly) with manufactured thermowell or for use with existing thermowell. An optional head transmitter with all common communication protocols – Bluetooth® technology inclusive – and special features like iTHERM QuickNeck for tool-free, easy recalibration, vibration-resistant and fast-response sensor and thermowell technology (iTHERM StrongSens, QuickSens) as well as hazardous area approvals ensure enhanced measurement accuracy and reliability.
- Universal range of application 
- Measuring range: –200 to +1.100 °C (–328 to +2.012 °F) 
- Pressure range up to 100 bar (1450 psi) 
- Degree of protection: up to IP 68 
- Vibration-resistant sensor elements up to 60g 
- Improved ease of maintenance (sensor replacement without process shutdown), easy and safe recalibration of the measuring point 
Benefits
-  Dual Seal: Second process barrier with failure indication offering valuable health status information 
-  iTHERM QuickSens: fastest response times 1.5 s for optimum process control 
-  iTHERM StrongSens: unsurpassed vibration resistance (> 60g) for ultimate plant safety 
-  iTHERM QuickNeck: cost and time savings thanks to simple, tool-free recalibration 
- Bluetooth® connectivity (optional) 
-  International certification: explosion protection according to ATEX, IECEx, CSA C/US and NEPSI 
Videos
- 
        Standard products 
- Reliable, robust and low-maintenance
Technical excellence
Simplicity
- 
        Specialized products 
- Designed for demanding applications
Technical excellence
Simplicity
Variable
| FLEX selections | Technical excellence | Simplicity | 
|---|---|---|
| 
 Fundamental selection Meet your basic measurement needs | Technical excellence | Simplicity | 
| 
 Lean selection Handle your core processes easily | Technical excellence | Simplicity | 
| 
 Extended selection Optimize your processes with innovative technologies | Technical excellence | Simplicity | 
| 
 Xpert selection Master your most challenging applications | Technical excellence | Simplicity Variable | 
Extended selection
- 
        High-end products 
- Highly functional and convenient
Technical excellence
Simplicity
 
                              Predecessor
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                                      - 
                                                    Technical Information (TI)
 TI iTHERM ModuLine TM131English version - 05/2025 Industrial modular thermometer EN 12/05/202531/03/202420/03/202315/04/202115/03/2021Language: English Version: 12/05/2025 File size: 4.9 MB File name: TI01373TEN_0725-00.pdf 
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                                                            Technical Information (TI)
 TI iTHERM ModuLine TM131Industrial modular thermometer EN 12/05/202531/03/202420/03/202315/04/202115/03/2021Language: English Version: 12/05/2025 File size: 4.9 MB File name: TI01373TEN_0725-00.pdf 
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                                                            Operating Instruction (BA)
 BA iTHERM ModuLine thermometerUniversal, modular RTD/TC thermometers for a wide range of industrial applications EN 04/08/202530/11/202431/08/2018Language: English Version: 04/08/2025 File size: 809.1 KB File name: BA01915TEN_0325-00.pdf 
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                                                            Short Instruction (KA)
 KA iTHERM ModuLine thermometerUniversal, modular RTD/TC thermometers for a wide range of industrial applications EN 01/04/2025Language: English Version: 01/04/2025 File size: 502.1 KB File name: KA01743TEN_0125-00.pdf 
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                                                            Ex Safety Instruction (XA)
 XA iTHERM TM1x11Ех d IIC T6…T1 Gb Х 
 Ga/Gb Ех d IIC T6…T1 Х
 Ех tb IIIC 85°C…450°C Db Х
 Ех ta/tb IIIC 85°C…450°C Da/Db ХEN 10/07/202430/08/2021Language: English Version: 10/07/2024 File size: 671.8 KB File name: XA02695TEN_0224-00.pdf 
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                                                            Ex Safety Instruction (XA)
 iTHERM TM111, TM131 Control drawing CSA IS, NI, DIPThermometer 
 Installation Notes for hazardous locations
 Intrinsically safe, Nonincendive, Dust ignition proofLanguage: English Version: 17/09/2024 File size: 449.6 KB File name: XA01976TEN_05.24.pdf 
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                                                            Ex Safety Instruction (XA)
 Installation instructions for separate thermowellInstallation instructions for separate thermowell Language: English Version: 13/03/2023 File size: 707 KB File name: XA03117TEN_0123-00.pdf 
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                                                            Ex Safety Instruction (XA)
 XA iTHERM TM111, iTHERM TM131TM111: 
 Ex db IIC T1...T6 Gb
 Ex tb IIIC T85 °C...T450 °C Db
 TM131:
 Ex db IIC T1...T6 Ga/Gb
 Ex ta IIIC T<sub>200</sub> T85 °C...T<sub>200
 </sub> T450 °C Da - Process
 Ex tb IIIC T85 °C...T450 °C Db - EnclosureEN 10/07/202427/04/202330/07/2020Language: English Version: 10/07/2024 File size: 672.9 KB File name: XA02114TEN_0324-00.pdf 
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                                                            Ex Safety Instruction (XA)
 TM111, TM131, TM611: cCSAus XP DIP NITM111, TM131: cCSAus XP DIP NI Language: English Version: 27/01/2025 File size: 1.7 MB File name: XA01961T_04.25.pdf 
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                                                            Ex Safety Instruction (XA)
 XA iTHERM TM111 iTHERM TM131Ex ec IIC T6...T1 Gc EN 21/04/2025Language: English Version: 21/04/2025 File size: 441.6 KB File name: XA03528TEN_0125-00.pdf 
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                                                            Ex Safety Instruction (XA)
 XA iTHERM TM1x10Ex ia IIC T6...T1 Ga X 
 Ga/Gb Ex ia IIC T6…T1 X
 Ex ia IIIC T85°C…450°C Da/Db XEN 10/07/202430/08/2021Language: English Version: 10/07/2024 File size: 576.2 KB File name: XA02696TEN_0224-00.pdf 
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