Specs at a glance
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Response time
t50 = 2.5 s
t90 = 5.4 s -
Max. process pressure (static)
at 20 °C: 40 bar (580 psi)
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Operating temperature range
Pt100:
-40 °C to 160 °C (-40 °F to 320 °F),
optional up to 190 °C (374 °F)
reference point for automated calibration -
Max. immersion length on request
up to 900.00 mm (35.4'')
Field of application
Our award-winning iTHERM TrustSens TM371 sanitary RTD features the world's first self-calibrating Pt100 sensor unit! The hygienic temperature transmitter with Heartbeat Technology effectively eliminates the risk of undetected non-conformities, reduces production downtime while increasing product safety and process efficiency in food, beverage and life sciences applications. The instrument complies with FDA and GMP regulations and integrates with the Netilion cloud-based Industry 4.0 ecosystem.
Designed for critical hygienic / aseptic applications in life sciences, food & beverage
RTD self-calibration in processes such as SIP, UHT, edible oil refining, industrial deep fat frying
Measuring range: -40 to 190 °C (-40 to 374 °F)
Protection class: IP65/67 or IP69
Signal output: 4 to 20 mA, HART®
Optional: Secure Bluetooth® and/or WirelessHART® (requires FieldPort SWA50)
EHEDG, ASME BPE, FDA, 3-A, 1935/2004, 2023/2006, 10/2011, CE, CRN, CSA General Purpose, Explosion protection, e.g. ATEX/IECEx
Benefits
Reduce risks and costs by implementing fully automated, traceable inline RTD sensor self-calibration; Eliminate non-conformities or undetected failures
True RTD sensor self-calibration making use of the Curie effect; Built-in, long-term stable fix point reference with complete traceability of calibration chain to ITS-90
Full instrument diagnostics, monitoring and verification with Heartbeat Technology
Automated process documentation, built-in memory for 350 calibration events; 24/7 access to printable, audit proof calibration certificates, on-site or through cloud-based system integration
Built-in 4 to 20 mA loop check function saves time and increases process safety
Highest temperature measurement precision: individual transmitter-sensor matching from factory for improved RTD accuracy
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Success stories
25 documents
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Technical Information (TI)
TI Weld-in adapter, process adapter and flanges
Level, pressure and temperature measurement
EN 06/12/202425/03/202415/09/202328/10/202130/07/2021Language:
English
Version:
06/12/2024
File size:
1.3 MB
File name:
TI00426FEN_2624.pdf
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-
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Technical Information (TI)
TI iTHERM TrustSens TM371
Metric RTD thermometer with self-calibration technology for hygienic applications
EN 31/07/2025Language:
English
Version:
31/07/2025
File size:
1.9 MB
File name:
TI01292TEN_0925-00.pdf
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-
-
Operating Instruction (BA)
BA iTHERM TrustSens TM371
Metric RTD thermometer with self-calibration technology for hygienic applications
EN 31/07/2025Language:
English
Version:
31/07/2025
File size:
4.2 MB
File name:
BA01581TEN_0725-00.pdf
-
-
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Operating Instruction (BA)
BA iTHERM TrustSens Calibration Monitoring
Memograph M RSG45 in connection with iTHERM TrustSens TM371/TM372 and the Field Data Manager (FDM) software
EN 09/06/202515/12/2022Language:
English
Version:
09/06/2025
File size:
2.7 MB
File name:
BA01887REN_0325-00.pdf
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-
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Short Instruction (KA)
KA iTHERM TrustSens TM371
Metric RTD thermometer with self-calibration technology for hygienic applications
EN 31/07/202531/03/202220/01/2021Language:
English
Version:
31/07/2025
File size:
1.2 MB
File name:
KA01272TEN_0625-00.pdf
-
-
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Installation Instructions (EA)
TI Adapter und Flansch EN
TI Adapter und Flansch EN
EN 28/05/2025Language:
English
Version:
28/05/2025
File size:
344.2 KB
File name:
Adapter _Flansche_en.pdf
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Installation Instructions (EA)
TI Adapter und Flansch DE
TI Adapter und Flansch DE
EN 28/05/2025Language:
English
Version:
28/05/2025
File size:
348.2 KB
File name:
Adapter_Flansche_de.pdf
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Ex Safety Instruction (XA)
iTHERM TrustSens TM371, TM372
Compact thermometer in metric style for hygienic and aseptic
applications
HART® communication
II1/2G Ex ia IIC T6...T1 Ga/Gb
II1/2D Ех ia IIIC 85 °C…450 °C Da/DbEN 07/03/2022Language:
English
Version:
07/03/2022
File size:
409.6 KB
File name:
XA02834TEN_0122-00.pdf
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Special Documentation (SD)
SD Hygienic process connection types
Supplement to TM311, TM371, TM372, TM401, TM411, TM402, TM412, TT411, TT412, TE411, TK40, TMR35, DTT35, TTR35
Language:
English
Version:
30/01/2026
File size:
817.3 KB
File name:
SD03119TEN_0226-00.pdf
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Case Study (CS)
Automatische Inline-Selbstkalibrierung
Mit der vollautomatischen und rückführbaren Kalibrierung im laufenden
Prozess kann das Risiko von unerkannten Messfehlern auf ein
Minimum reduziert werden.Language:
German
Version:
25/11/2025
File size:
1.4 MB
File name:
CS01577T_20_DE_Lonza_CH_neu.pdf
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Search spare parts by number in drawing
60 spare parts & accessories
60 spare parts & accessories
60 spare parts & accessories
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O-ring 14.9x2.7 VMQ, FDA, 5 pcs.
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further parts
Order code52021717 -
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O-ring 21.89x2.62 VMQ, FDA, 5 pcs.
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further parts
Order code52014473 -
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O-ring 28.17x3.53 VMQ, FDA, 5 pcs.
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further parts
Order code52014472 -
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Profile gasket 29x36x3.7, FDA, 5 pcs.
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further parts
Order code52014424 -
-
Commubox FXA291 (Hardware)
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further parts
Order code51516983 -
-
Commubox FXA195
-
further parts
Order codeFXA195- -
-
Fieldgate FXA42
-
further parts
Order codeFXA42- -
-
Compression Fitting TK40
-
further parts
Order codeTK40- -
-
Spare Parts Kit Seal Insert TK40
-
further parts
Order codeXPT0001- -
-
Spare Part Kit Press-Screw TK40 G1/2 d6
-
further parts
Order code71217633 -
-
Spare Part Kit Press-Screw TK40 G1/4 d6
-
further parts
Order code71215757 -
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iTHERM ModuLine TT411
-
further parts
Order codeTT411- -
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iTHERM TrustSens TM371
-
further parts
Order codeTM371- -
-
plug screw fitting G1/2 1.4435
Order code60022519 -
Weld-in adapter M12x1.5 1.4435/316L
Order code71405560 -
G1/2 metal to metal weld-in adapter
Order code71424800 -
Plug screw fitting 316L M12x1.5
Order code71535692 -
Adapter for Ingold connection, 3.1
Order code71531585 -
Adapter for Ingold connection
Order code71531588 -
O-ring sealing kit Ingold connection
Order code71744229 -
Weld-in adapter G3/4 d=50, 316L, 3.1
Order code52018765 -
Weld-in adapter G3/4, d=29, 316L, 3.1
Order code52028295 -
Weld-in adapter G3/4, d=55, 316L
Order code52001052 -
Weld-in adapter G3/4, d=55, 316L, 3.1
Order code52011897 -
Weld-in adapter G1, d=53, 316L, 3.1
Order code71093129 -
Weld-in adapter G1, d=60, 316L
Order code52001051 -
Weld-in adapter G1, d=60, 316L, 3.1
Order code52011896 -
Weld-in adapter G1, adjustable, 316L
Order code52001221 -
Weld-in adapter G1, adjustable,316L, 3.1
Order code52011898 -
Grip cap flexible yellow TPE
Order code71275424 -
Cordset 4p D18 IP69K
Order code71217708 -
Adapto Upgrade TXU10 - TM37x
Order code71392158 -
Cable connector M12 IP69k 5m
Order code71589963 -
Configuration Kit TXU10
Order codeTXU10-
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