Commutation Module MK-140 GAZ

    Technical characteristics:
    Voltage range, V


    Max power, W


    Rated output voltage of sensor RS 485, V


    Number of gas sensors supported (number of connectors)

    8 (10)

    Max number of thresholds


    Communication interface to PC and external Digital sensors


    Communication protocol


    Min ingress protection, GOST 14254-2015(IEC 60529-2013)

    IP 54


    II 3G Ex nA [ia Ga] [ib Gb] IIB T4 Gc

    Ambient temperature range,оС

    -40 ... +50

    Max dimensions, mm


    Max weight, kg


    MK – 140 GAZ commutation module is a stand-alone device that meets oil and gas safety regulations. It’s operated with gas analyzer sensors. There are intrinsic safety barriers (a repeater RS-485), ex-marking II 3G Ex nA [ia Ga] [ib Gb] IIB T4 Gc in MK-140.




    • Intrinsically safe power supply sensors, digital transducers and other devices installed in ex-areas;
    • Status monitoring of connected devices;
    • Indication of current measurement channel readings on standard visual displays;
    • Settings threshold limit value for measurement channels;
    • Audible alarm activation when the thresholds are exceeded;
    • Quick audible alarm deactivation;
    • Warning lights activation when the thresholds are exceeded;
    • External actuator verification mode;
    • External safety actuator control;
    • Sending data to a DEL-150 control module for subsequent recording;
    • Indicating connection status to the DEL-150 control module.

    Design Features:

    • Accessible connection with other devices if there are free outputs RS-485.