Product picture temperature head transmitter iTEMP TMT188

iTEMP TMT188 temperature transmitter

4-20 mA temperature head transmitter with one TC sensor input suitable for use in hazardous areas

TMT188

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iTEMP TMT188
Temperature head transmitter close-up

Specs at a glance

Accuracy

(Type K) <= 0,5 K
(Type K) <= 0,9 °F

See all specifications

Field of application

The transmitter is designed for the transformation of a thermocouple (TC) sensor signal in a fixed measuring range. The standardized output signal used for process measurement is a 4 to 20 mA signal. This means fast, easy and cost-saving temperature measuring as well as reliable and precise measured values for for a wide range of industry applications.

Fixed range temperature head transmitter for converting a TC input signal into a 4 to 20 mA analog output signal
Input: Thermocouple (TC)

Benefits

High accuracy in complete ambient temperature range
Failure information when sensor breaks or short circuits as per NAMUR NE 43
EMC as per NAMUR NE 21, CE
Ex approval: ATEX Ex ia and dust zone 22 in compliance with EN 50281-1; FM IS; CSA IS
UL recognized component to UL 3111-1
Marine approval
Galvanic isolation

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

TMC134

TMC138

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
Boost heat exchanger efficiency and safety

The non-invasive thermometer iTHERM SurfaceLine TM611 measures temperature accurately and fast, optimizing heat exchanger performance and efficiency.
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
Enhanced safety in polymer production

The Ziegler-Natta process uses hazardous chemicals like titanium tetrachloride. Precise temperature measurement is crucial to prevent runaway reactions and ensure safety and efficiency.
Read the full story

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Version:	20/04/2006
File size:	670.3 KB
File name:	CSA1241323 rev 6.pdf

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Version:	10/04/2025
File size:	194.1 KB
File name:	EC_00567_03.24.pdf

Language:	English
Version:	18/12/2002
File size:	312.7 KB
File name:	ti077ren.pdf

	EN
18/04/2013
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Language:	English
Version:	18/04/2013
File size:	192.8 KB
File name:	KA00120Ra3_1313.pdf

	EN
10/04/2025

	EN
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	EN
10/07/2024
20/03/2020
05/04/2016

	EN
13/03/2023
15/04/2016
19/08/2015
01/11/2009
01/09/2006

iTEMP TMT188 temperature transmitter

4-20 mA temperature head transmitter with one TC sensor input suitable for use in hazardous areas

Specs at a glance

Accuracy

Field of application

Benefits

Fundamental selection

Predecessor

Success stories

Innovative non-invasive temperature measurement for hydrogen

Optimized temperature control in steam power plants

Boost heat exchanger efficiency and safety

LNG storage tank multipoint temperature profiling

Enhanced safety in polymer production

Measuring principle

Input

Output

Auxiliary power supply

Installation

Accuracy

Galvanic isolation

Certification

Back

Product family: Head transmitters

Product family: Accessories, DIN rail transmitter, Field transmitter, Head transmitters

Technical information Temperature head transmitter iTEMP TC TMT 188

Brief Operating Instructions TMT187, TMT188 TSM187, TSM487

iTEMP TMT181, TMT187, TMT188

XA iTEMP TMT188

XA iTEMP TMT181, TMT182, TMT187, TMT188

ATEX Sicherheitshinweise ATEX Safety instructions

ATEX Safety instructions iTEMP®

iTEMP TMT181, TMT187, TMT188 ATEX: II 1G: Ex ia IIC T6/T5/T4 Safety Instructions

Control drawing FM iTEMP® TMT181, TMT187, TMT188

Control Drawing FM iTEMP 181, TMT187, TMT188

Back

Spare part set for TMT181/187/188/182

Adapter DIN rail mounting

Field Housing

Input

Output

Power Supply

Input

Output

Display

Power Supply

Input

Output

Display

Power Supply

Input

Output

Display

Power Supply

Input

Output

Power Supply

Input

Output

Display

Power Supply

Input

Output

Display

Power Supply

Input

Output

Display

Power Supply

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