Andel Digital Gas Detection System

Product Description

Micro-processor controlled module MDD-256/T was built to oversee the Digital Gas Detection System (DD).  It is designed to work with a range of detectors and control modules using RS485. MDD-256T periodically checks detectors in the network.

 

Additional information

Additional Information

Andel Digital Gas Detection System

Product Short Description

Micro-processor controlled module MDD-256/T was built to oversee the Digital Gas Detection System (DD).  It is designed to work with a range of detectors and control modules using RS485. MDD-256T periodically checks detectors in the network.

 

Additional Information

In the event of present gas concentration levels being exceeded:

  • opto-acoustic alarm turns on
  • output relays become active
  • any attached signalling devices (MDD-L32T) are activated
  • alarm information is via RS485 (MODBUS RTU protocol) on request

Features:

  • controls max 224 detectors and max 21 control units (in max 7 zones)
  • communication with detectors in RS485 standard galvanically separated
  • second RS485 channel allows communication with other external control systems
  • remote control, diagnostics and gas detector in network identification
  • each DD’s state can be read from LED display
  • output relay OUT4 signals system fault state by default
  • adjustable output delay
  • 2 12VDC alarm outputs for external signalling devices
  • ready to mount in standard cabinets (TS35 rail)
  • 24VDC supply (with LED indicator)
  • equipped with face mounted keyboard. Optionally configurable via PC and extra software