4-20 mA temperature transmitter as head or DIN rail device

iTEMP TMT31 transmitters are available with various temperature assemblies — iTEMP TMT31 transmitters are available with a wide range of industrial or hygienic temperature sensors and assemblies

Temperature transmitters iTEMP TMT31 can be parametrized in the field — Temperature transmitter being parametrized in the field using a laptop or handheld devices such as a FieldXpert SMT70 tablet

4-20 mA temperature transmitter as head or DIN rail device

Specs at a glance

Accuracy

(Pt100,Pt1000, -50…+250°C) <= 0,1 K
(Pt100,Pt1000, -58…+482°F) <= 0,18° F

See all specifications

Field of application

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.

Reliability, long-term stability, high accuracy and diagnostic functions
Installation in industrial and hygienic thermometers with terminal head form B
DINrail 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

Videos

Explained in under 2 minutes - iTEMP TMT31 temperature transmitter

Fundamental selection

Simple products
Easy to select, install and operate

Technical excellence

Simplicity

What is FLEX?

Simple products
Easy to select, install and operate

Technical excellence

Simplicity

What is FLEX?

Standard products
Reliable, robust and low-maintenance

Technical excellence

Simplicity

What is FLEX?

High-end products
Highly functional and convenient

Technical excellence

Simplicity

What is FLEX?

Specialized products
Designed for demanding applications

Technical excellence

Simplicity

Variable

What is FLEX?

FLEX selections	Technical excellence	Simplicity
F L E X Fundamental selection Meet your basic measurement needs	Technical excellence	Simplicity
F L E X Lean selection Handle your core processes easily	Technical excellence	Simplicity
F L E X Extended selection Optimize your processes with innovative technologies	Technical excellence	Simplicity
F L E X Xpert selection Master your most challenging applications	Technical excellence	Simplicity Variable

Learn more about the FLEX selections

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Predecessor

Success stories

Innovative non-invasive temperature measurement for hydrogen

Since the temperature of compressed hydrogen increases with expansion during filling, temperature measurement is essential at hydrogen filling stations for safety reasons.
Read the full story
Optimized temperature control in steam power plants

Our non-invasive thermometer can be easily retrofitted to the existing pipe and integrated into the control system to enable efficient stand-by operation of a turboset.
Read the full story
LNG storage tank multipoint temperature profiling

Leak detection and cool-down monitoring with iTHERM MultiSens TMS01 multipoint temperature assembly
Read the full story
Temperature monitoring for gasifiers

How temperature monitoring inside the gasifier helps increase safety and environmental compliance.
Read the full story
High temperature measurement in an SRU / Claus furnace

The inner temperature of the reactors during the sulfur reaction must be continuously and accurately monitored to prevent plant shutdowns and optimize the energy consumption.
Read the full story

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

iTEMP TMT31 temperature transmitter

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

Specs at a glance

Accuracy

Field of application

Benefits

Videos

Fundamental selection

Predecessor

Success stories

Innovative non-invasive temperature measurement for hydrogen

Optimized temperature control in steam power plants

LNG storage tank multipoint temperature profiling

Temperature monitoring for gasifiers

High temperature measurement in an SRU / Claus furnace

Measuring principle

Input

Output

Auxiliary power supply

Communication

Installation

Accuracy

Galvanic isolation

Certification

Back

Fixing kit cpl. TMT8x/7x (european)

Fixing kit cpl. TMT8x/7x USA(american)

Spare part kit screw terminals TMT7x/3x

Spare part kit push-in termin. TMT7x/3x

Configuration Kit TXU10

Commubox FXA195

iTEMP TMT31, Transmitter 4-20mA

Adapter DIN rail mounting

Input

Output

Display

Power Supply

Input

Output

Display

Power Supply

Input

Output

Power Supply

Input

Output

Power Supply

Input

Output

Display

Power Supply

Input

Output

Display

Power Supply

Input

Output

Power Supply

Input

Output

Power Supply

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