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Crowcon Gasmaster | 1 to 4 Channel Gas Detection Control Panel | LCD, relays, 4-20 mA, Modbus
The Crowcon Gasmaster is a modular control panel for one to four gas detectors, accepting 2- or 3-wire 4-20 mA transmitters or mV pellistor flammable detectors in almost any combination. Fire loops of up to 20 conventional detectors or flame detectors can also be connected. A large multilingual backlit LCD shows readings from all channels at once.
Key features
- Two independent alarm levels per channel
- DPCO relays rated 250 Vac 8 A, with rising or falling alarms
- 4-20 mA or 1-5 V analogue output per channel
- RS-485 Modbus RTU for DCS, SCADA or PLC
- 1.2 Ah internal battery back-up
- Specifications
- Downloads
| Part Number | Gasmaster |
| Brand | Crowcon |
| Channels | 1 to 4 |
| Inputs | 4-20 mA (2/3-wire) or mV pellistor; fire loops or flame detectors |
| Size | 288 x 278 x 110 mm |
| Weight | 4.5 kg |
| Enclosure | Cast aluminium back-box, flame-retardant ABS cover |
| Ingress protection | IP65 |
| Power | 100-240 Vac or 20-30 Vdc, 60 W max |
| Battery back-up | 1.2 Ah internal |
| Relays | DPCO 250 Vac 8 A |
| Analogue output | 4-20 mA or 1-5 Vdc |
| Serial | RS-485 Modbus RTU |
| Operating temperature | -10 to +50 °C |
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