Категория: Commutation Module,
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.