

- F
- L
- E
- X
Compact sanitary RTD - iTHERM TrustSens TM371 with self-calibrating Pt100 sensor and iTHERM QuickNeck quick-release neck for fast insert removal

- F
- L
- E
- X
Sanitary RTDs, such as the compact TrustSens TM371 temperature measurement device, are available with special TT411 elbow thermowells in hygienic design for clean processes and accurate measurements

- F
- L
- E
- X
Our sanitary resistance thermometer is recognized by numerous industry awards for its breakthrough technology, including the prestigious HERMES AWARD

- F
- L
- E
- X
iTHERM TrustSens - innovative thermometer designed for food & beverage and life sciences industries

- F
- L
- E
- X
Temperature measurement is a critical part of sterile process applications. iTHERM TrustSens supports automation of product safety and compliance.

- F
- L
- E
- X
iTHERM TrustSens - The award-winning thermometer for all hygienic and aseptic applications
Compact sanitary RTD - iTHERM TrustSens TM371 with self-calibrating Pt100 sensor and iTHERM QuickNeck quick-release neck for fast insert removal
Specs at a glance
-
Response time
t50 = 2.5 s
t90 = 5.4 s -
Max. process pressure (static)
at 20 °C: 40 bar (580 psi)
-
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
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
Videos
-
iTHERM TrustSens TM371 sanitary RTD: The world's first self-calibrating hygienic temperature transmitter
-
How to perform a fully automated, inline 4 to 20 mA loop check in five easy steps
-
Lower risk and drive automation in regulated processes using iTHERM TrustSens TM371
Xpert selection
-
Specialized products
- Designed for demanding applications
Technical excellence
Simplicity
Variable

-
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 |
-
Measuring principle
Resistance Temperature Detector
-
Characteristic / Application
self-calibrating
metric style
compact temperature probe
hygienic design
life sciences, food & beverage -
Thermowell / protection tube
without
incl. thermowell
incl. Tee-/elbow thermowell -
Insert / probe
without exchangeable insert
-
Outer diameter protection tube / Insert
6.0 mm (0.24'')
9.0 mm (0.35'')
12.7 mm (0.5") -
Max. immersion length on request
up to 900.00 mm (35.4'')
-
Material protection tube/ thermowell
1.4435 Delta Ferrite < 1%
316L -
Process connection
compression fitting
weld in adapter
clamp connections acc. to ISO 2852
screwed pipe joint acc. to DIN 11851
aseptic screwed pipe joint acc. to DIN 11864-1
metallic sealing system
thread acc. to ISO 228 for Liquiphant adaptor
APV Inline
Varivent
Ingold
SMS 1147
Neumo Biocontrol
TT411 elbow thermowell DIN 11865 -
Tip shape
straight
reduced -
Surface roughness Ra
0.76 μm (29.92 μin)
0.38 μm (14.96 μin)
0.38 μm (14.96 μin) electropolished -
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. process pressure (static)
at 20 °C: 40 bar (580 psi)
-
Response time
t50 = 2.5 s
t90 = 5.4 s -
Integration head transmitter
no (4 to 20 mA signal, HART)
-
Ex - approvals
ATEX IECEx Ex ia
CSA C/US IS
UKCA Ex ia
Choose from our suggested options
-
-- selected coding-- selected label99.999,00<%label%>
-
Looking for more options? Please use the individual configurator to continue
-
-- selected coding-- selected label99.999,00<%feature%>
-
<%label%>99.999,00
-
Looking for more options? Please use the individual configurator to continue
-
Process Connection
-
<%label%>99.999,00
-
<%label%>99.999,00
-
-
<%feature%><%coding%><%label%>
- CAD drawings CAD drawings
- CAD drawings
-
Prices per piece
-
<%range%><%price%>
-
- Optional add-ons
Individual configuration
Often bought together
Accessories