DatasheetGasmonitor Plus is Crowcon’s flexible 19″ rack-based control system for gas detection monitors. This microprocessor-controlled unit is used throughout the world, both onshore and offshore. Gasmonitor Plus can monitor up to 16 gas detection monitors 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 monitor. Gasmonitor Plus can be engineered into very large systems and tailored to suit individual site requirements.
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
Specifications
| 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 & fault – Voting Up to 16, configurable – Relay modes Energised/de-energised, latched/non-latched, time-delayed, pulsed |
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| 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 |