Thermocouple Temperature


DIN rail mounting transducers available in 55mm x 112mm or 100 x 112mm DIN  rail cases


Used to conver various inputs into standard DC signals for driving panel meters and for use in control devices.

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Selection Guide

M100-TJ1Type J thermocouple
M100-TK1Type K thermocouple

Typical Applications

The M100-TJ1 and TK1 measure the millivolt drop of J and K type thermocouples respectively. Thermocouples are made from two dissimilar metals and as the temperature rises, the mV accross the thermocouple increases. The millivolts voltage developed corresponds to the change in temperature, thermocouple manufacturers provide tables showing temperature versus voltage drop.

The M100 TJ1 / TK1 measures this voltage change and converts it to an output signal that corresponds to the temperature being monitored. The output from the M100-TJ1 / TK1 is not linearised.

Thermocouple temperature measurement is used in a variety of applications, including monitoring of temperature of furnaces etc. The M100 thermocouple transducer is provided with automatic cold junction temperature compensation over the range 0-50ºC. Also provided is thermocouple break protection should the thermocouple leads break, the output from the transducer will go to its maximum or minimum output value, depending on which option is chosen at the time of ordering.

Technical Specifications

Type J Fe/ConstMin range 0-185ºC (min. span 10mV)
Max range 0-870ºC (max. spam 50mV)
Type K NiCr/NiAlMin range 0-245ºC (min. span 10mV)
Max range 0-1230ºC (max span 50mV)
Thermocouple Break ProtUpscale or downscale optional
Cold junction compensationAutomatic over the range 0-50ºC
Overload10 x input continuous
Rated value mA0-1/5/10/20 & 4-20mA
Load Resistance12/2.4/1.2/0.6 kOhm
Rated value volts0-5 / 10 & 1-5V
A.C. Voltage115 / 230 / 400V (±25% / 45-65Hz / < 2VA)
D.C. Voltage24 / 48/ 110V (±20% / galvanically isolated / <3W)
Approx 0.4kg. case 55mm

Ordering Information

Product CodeTempO/pAuxFreqOptions
M100-TK10-500ºC1mA120V60HzUp Scale


1Non standard inputs/outputs where technically viable
2A.C. Auxiliary in range 57.7 to 450 volts
3Calibration at temperature other than 23ºC
4Up or down scale break protetion

A.C. Current Connection Diagrams