Endress+Hauser TM371 iTHERM TrustSens Compact thermometer
- Sensor Type: Self-calibrating Pt100
- Measurement Range: -40 to 190 °C
- Output Signal: 4-20mA HART
- Key Approvals: FDA, EHEDG, 3-A
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Description
Endress+Hauser TM371: Self-Calibrating Temperature Sensor
The Endress+Hauser iTHERM TrustSens TM371 is an award-winning sanitary RTD that redefines temperature measurement with the world’s first self-calibrating Pt100 sensor unit. This groundbreaking instrument, featuring Heartbeat Technology, proactively eliminates the risk of undetected non-conformities, significantly reduces production downtime, and dramatically enhances product safety and process efficiency. Designed specifically for critical hygienic and aseptic applications in the Food & Beverage and Life Sciences industries, the TM371 complies with stringent FDA and GMP regulations, seamlessly integrating with the Netilion cloud-based Industry 4.0 ecosystem. It’s not just a sensor; it’s a paradigm shift in process reliability.
Revolutionizing Hygienic Temperature Measurement
The TM371 is revolutionizing hygienic temperature measurement, addressing the most pressing challenges in sensitive industrial environments. Its innovative self-calibration capability is particularly vital in processes demanding continuous validation and high accuracy, such as Steam-in-Place (SIP) cycles, Ultra-High Temperature (UHT) processing, edible oil refining, and industrial deep fat frying. By performing self-calibration in-line, the TM371 ensures that measurement integrity is maintained without interrupting production, which is a game-changer for industries where even minor deviations can have significant financial and safety implications. This pioneering feature ensures compliance and peace of mind.
True Self-Calibration: Eliminating Risk
Experience true self-calibration: eliminating risk with the TM371’s unique Curie point principle. This ingenious technology incorporates a built-in, long-term stable fixed-point reference, ensuring complete traceability of the calibration chain directly to ITS-90. This means you can confidently eliminate the risk of non-conformities or undetected failures that could compromise product quality or lead to costly recalls. The fully automated, traceable inline RTD sensor self-calibration capability reduces both operational risks and calibration costs, liberating resources and personnel from tedious manual calibration routines, allowing them to focus on core production activities.
Heartbeat Technology: Ultimate Diagnostics
With Heartbeat Technology: ultimate diagnostics, the TM371 provides comprehensive instrument diagnostics, continuous monitoring, and effective verification capabilities. This powerful feature allows for real-time insight into the sensor’s health and performance, enabling predictive maintenance and preventing unplanned shutdowns. Furthermore, the instrument boasts automated process documentation, with a built-in memory capable of storing up to 350 calibration events. This ensures 24/7 access to printable, audit-proof calibration certificates, accessible either on-site or seamlessly through cloud-based system integration, guaranteeing full transparency and compliance for regulatory audits.
tpt24: Your Premier Global Source
For the Endress+Hauser TM371, tpt24: your premier global source, offers unparalleled access to this revolutionary self-calibrating sensor. As the world’s leading online store for industrial instrumentation, tpt24 guarantees the authenticity and superior quality of every TM371 purchased through our platform. Our extensive worldwide delivery network ensures that, regardless of your location—be it a pharmaceutical plant in Ireland or a dairy facility in New Zealand—you will receive this essential instrument efficiently and securely. Trust tpt24 for genuine products and dependable service for all your critical process needs, ensuring peace of mind and operational excellence.
Precision Measurement, Optimized Efficiency
The TM371 offers precision measurement, ensuring optimized efficiency across your operations. It boasts the highest temperature measurement precision, thanks to individual transmitter-sensor matching performed at the factory, which significantly improves RTD accuracy. The sensor supports a measuring range of -40 to 190 °C (-40 to 374 °F) and comes with a robust protection class of IP65/67 or IP69, suitable for even the harshest washdown environments. Furthermore, its built-in 4 to 20 mA loop check function saves valuable time during commissioning and troubleshooting, simultaneously enhancing overall process safety and operational uptime.
Unmatched Integration and Connectivity
The TM371 provides unmatched integration and connectivity with modern control systems. It offers a standard 4 to 20 mA HART® signal output, ensuring compatibility with a wide array of existing infrastructures. For enhanced flexibility and cutting-edge communication, optional Secure Bluetooth® and/or WirelessHART® connectivity are available (requiring a FieldPort SWA50). This allows for remote access, configuration, and data retrieval, simplifying field operations and enabling seamless integration into advanced Industry 4.0 applications. This forward-thinking connectivity ensures your temperature monitoring system is future-proof and highly adaptable.
Global Compliance, Robust Construction
The TM371 demonstrates global compliance, with robust construction, meeting a comprehensive list of international standards and certifications. It is EHEDG, ASME BPE, FDA, and 3-A compliant, along with adhering to regulations such as 1935/2004, 2023/2006, 10/2011, and CE. It also holds CRN, CSA General Purpose, and various explosion protection approvals like ATEX/IECEx Ex ia and UKCA Ex ia. Constructed from high-grade materials like 1.4435 Delta Ferrite < 1% or 316L stainless steel, with surface roughness options down to 0.38 μm Ra electropolished, its hygienic design is built for durability and long-term performance in demanding sanitary applications.
Specifications
-
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











