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Endress+Hauser: iTEMP TMT31 Temperature Transmitter

Jan 22, 2026 - Endress+Hauser iTEMP TMT31 Temperature Transmitter

January 22, 2026

iTEMP TMT31 Temperature Transmitter for Installation in Control Cabinets with DIN Rail Mounting

4-20 mA temperature transmitter as head or DIN rail device with one RTD or one TC sensor input suitable for use in zone 2 (Ex ec) / Div. 2 areas.

Endress+Hauser’s iTEMP TMT31 4-20 mA temperature transmitter is designed for customers in all industries who want to easily select, order, install and operate simple products. It is a reliable, long-term stable, single-channel 4-20 mA temperature transmitter for modular thermometers with form B connection head or for installation in control cabinets with DIN rail mounting. The capable iTEMP TMT31 can be used with either all Pt100 and Pt1000 RTD sensors, or all common thermocouple sensors.

  • Reliability, long-term stability, high accuracy and diagnostic functions
  • Installation in industrial and hygienic thermometers with terminal head form B
  • DIN rail device for installation in control cabinets
  • Available with input for either RTD thermometers or for TC thermometers
  • Can be parameterized or preprogrammed at the factory

Benefits

  • Push-in terminals for fast and tool-free wiring during installation or maintenance
  • Optimization of the accuracy of the measuring point through sensor-transmitter-matching (CvD)
  • Diagnostic information according to NAMUR NE107
  • Increased safety through Ex approvals

Specifications

  • Measuring Principle: Head transmitter
  • Input: 1x Pt100 / Pt1000, TC
  • Output: 1 x analog 4…20 mA
  • Auxiliary Power Supply: 10…36 V DC
  • Communication: PC-programmable
  • Installation: Terminal head form B / DIN rail
  • Accuracy:
    • (Pt100, Pt1000, -50…+250°C) <= 0,1 K
    • (Pt100, Pt1000, -58…+482°F) <= 0,18° F
  • Galvanic Isolation: Yes (TC)
  • Certification:
    • DNV (GL) marine approval
    • ATEX Ex ec
    • CSA C/US General Purpose
    • CSA C/US NI, Ex ec
    • ATEX+ CSA C/US Ex ec
    • Non-hazardous area + KC marking (Head, DIN Rail)

For more information on Endress+Hauser’s Temperature Measurement HERE

For more information on Endress+Hauser solutions HERE

Jan 22, 2026 - Endress+Hauser iTEMP TMT31 Temperature Transmitter

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