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The MU-418 module offers four analogue input channels configurable for voltage measurement (S.E. with "mV ranges").

For direct measurement with different temperature sensors, the firmware implements algorithms for linearization of most of the thermocouples including compensation of the "cold end" of the thermocouple (module is equipped with a temperature sensor located in the immediate proximity of the analog input terminals).

The module is based on 16-bit A/D converter with system autocalibration running continuously on the background of cyclic measurements. The time needed to measure all channels, including autocalibration and open senzor detection, takes less than 2.5 seconds. Alternatively, floating filters averaging the results of the ten most recent measured values can be activated.

The whole analogue input group is isolated from other circuits of module (power supply and RS-485 interface), but inputs are not isolated from each other.

Note: The MU-418 module is designed for basic accuracy measurements. For applications with higher requirements MU-415 or MU-815 can be recommended.


Type MU-418
Analog inputs 4x U/TC
Analog input topology
(voltage ranges)
Voltage ranges ±320mV
Internal temperature
ADC resolution 16-bit
(continuous offset and range autocalibration)
Basic accuracy better than 0.2% of FSR
TC linearization B type (-250÷1820°C)
E type (-200÷1000°C)
J type (-210÷1200°C)
K type (-200÷1372°C)
N type (-200÷1300°C)
R type (-50÷1768°C)
S type (-50÷1768°C)
T type (-200÷400°C)
Measurement period less than 2.5s
(the time needed to measure all channels)
Overvoltage protection ±15V continuously (±20V max. 1s)
Analog input isolation 1kVDC (AIN block against other circuits)
Supply voltage 10÷30VDC
Power consumption 1.9W max.
Housing & Dimensions Modulbox 3M
Signal terminals screw terminals, wire 2.5mm2 max.