Crowcon Gasmonitor Plus Control Panel

Crowcon Gasmonitor Plus

Gas Detection Control panels

Crowcon Gasmonitor Plus

Manufactured by Crowcon, Gasmonitor Plus is a flexible 19″ rack-based control panel system. This microprocessor-controlled unit is used throughout the world, both onshore and offshore.

Gasmonitor Plus can monitor up to 16 gas detectors or 32 fire zones per rack. Racks can be supplied separately, or built into wall mounting or floor standing enclosures.

A separate gas level display is provided for each gas detector. Gasmonitor Plus can be engineered into very large systems and tailored to suit individual site requirements.

Crowcon Gasmonitor Plus

Control Panel Features

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
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
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

Crowcon Gasmonitor 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
Inputs	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
Outputs	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 & fault – 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

Crowcon Gasmonitor Plus 1-16 Channel Control System

Control Panels

Visit hazardous area gas detectors for explosion and flameproof gas monitoring and detection instruments with certification for potentially explosive atmospheres, including Zone 1 and Zone 2 (according to ATEX and IECEx) and Class/Division categories (according to North American standards).

T&D Sales Team are Certificated by Crowcon to support the specification and supply of their flammable and toxic gas detectors. Additionally, T&D are CompEx Certificated and competent in understanding hazardous area classifications and site requirements for the sale of explosion and flameproof equipment.

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