Gasmonitor Plus


Simple to use

  • All day-to-day functions are available from the front panel – push buttons for simple operation
  • Unique bar-graph display per channel – provides instant representation of gas concentrations
  • Common alarm LEDs on the display card – the whole rack status can be checked at a glance.

Flexible architecture

  • System is limitlessly expandable
  • Modular construction – ultimate customisation and minimal wiring
  • Industry-standard analogue outputs – will integrate fully with existing rack-mounted protection systems on-site
  • Optional relay modules – flexible and cuts down on configuration and monitoring cabling

Easy maintenance

  • Each channel is inhibited separately – plant safety is not compromised during checks
  • Routine calibration from front panel – reduces service overheads by half
  • One universal gas card – reduces spares holding


Size 483 x 133 x 294 mm (19.0 x 5.25 x 11.5 ins)
Weight 9.5 kg (21 lbs)
Enclosure material Aluminum alloy
Mounting Rack mounted (3u format).  Wall mounted and floor standing cabinets are optional, dimensions on request.
Channels 16 per rack
Operating temperature 0°C to +50°C (32°F to +122°F)
Humidity 0-95% non-condensing
Inputs Gas    2 or 3 wire 4-20mA (sink or source), or mV bridge
Fire – smoke & heat detectors, manual call-points   Maximum of 32 loopes per rack (ie 16 twin zone fire modules)
Outputs Analogue 16 x 4-20mA, max. load 960 Ohms or 1-5 V, min. load 100 Ohms
External audible/visual alarm drive Powered 24 V dc, max load up to 200mA for each alarm level.
Relays Type Up to 84 DPCO contacts rated 5 A @ 250 V ac, non-inductive load
Assignment – Common Alarm 1, Alarm 2, Alarm 3, Fault
– Per channel Gas alarms 1, 2 & 3, fire &
  – Voting Up to 16, configurable
                      – Relay modes Energised/de-energised,
latched/non-latched, time-delayed, pulsed
Digital communications With PanelsPro or SetGMon only
Event logging Built-in datalogger – data available via communication links with PanelsPro or SetGMon only
Panel indication Channel number: 4 lines x 20 characters
Gas reading: On main LCD plus green LED bar-graph on channel card
Measurement units:  % LEL, ppm, % Vol, Fire
System fault – integrity watchdog:  Yellow LED
Alarm indication As standard: 3 individual & 3 common alarms (red LED); Fault – individual & common fault (yellow LED); Inhibit – individual inhibit (yellow LED)
Power AC mains: 100 – 260 V ac 50/60 Hz external
DC: 27.6 V
Battery back-up: external
Approvals Low voltage directive – EN61010-1
EMC Directive – EN 50082-1
EMC Directive –  EN 50081-1EN 50270, EN61000-6-4ATEX: Conforms to EN60079-25 in configuration with Zener Barrier Baseefa 05Y0090/1