Crowcon Gasmonitor Plus flexible 19″ rack-based control system




Crowcon Gasmonitor Plus



Crowcon gas detectors (portable and fixed) are suitable for applications in many industries and for detecting a wide variety of dangerous gases – protecting people and plant from gas risks (toxic and flammable) in both industrial and hazardous areas with IECEx and ATEX certification. Portable product range: Gas-Pro, Gas-Pro IR, Gas-Pro PID, Gas-Pro TK, T4, Tetra 3, Gasman, Clip SGD, Detective+, Detective Wireless, LaserMethane Mini, Triple Plus+ Fixed product range: XgardIQ, IRmax, Xgard Bright, Xgard, TXgard-IS+, Flamgard Plus, TXgard Plus, Open Path Gas Detectors, FGard IR3 Flame Detector, Xsafe, F-Gas Detector


Crowcon Specification

Size 483 x 133 x 294 mm (19.0 x 5.25 x 11.5 ins)
Weight 9.5 kg (21 lbs)
Enclosure material Aluminium 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 DCS/PLC/PC/Local configuration link: RS-232
Event logging Built-in datalogger – data available via communication links
Panel indication Channel number: 4 lines x 20 characters back-lit LCD display
Gas reading: as above plus green LED bar-graph
Measurement units:  % LEL, ppm, % Vol, Fire
System fault – integrity watchdog:  Yellow LED
Alarm indication Visual – Alarm: 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
RF immunity – EN 50082-1
RF emissions –  EN 50081-1





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