iTEMP TMT31 temperature transmitter

The 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 DINrail mounting. The capable iTEMP TMT31 can be used with either all Pt100 and Pt1000 RTD sensors, or all common thermocouple sensors.

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. 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 pre programmed 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

 

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

Features

  • Single-channel (one input) 4-20 mA output transmitter designed for installation either in a head (terminal head Form B) or DIN-rail.
  • Supports RTD (e.g., Pt100 / Pt1000) or thermocouple (TC) sensor input, depending on variant.
  • Accuracy: e.g., for Pt100 / Pt1000 in range –50…+250 °C it achieves 0.1 K.
  • Diagnostics in accordance with NAMUR NE 107 for sensor status, wiring issues etc.
  • Fast wiring: optional push-in terminals for tool-free wiring.
  • Suitable for hazardous areas: approvals include ATEX Ex ec (Zone 2) and general purpose versions.
  • Power supply: approx. 10…36 V DC (depending on variant).