Product Features
The Crowcon Gasmaster Gas Detector Control Panel has a modular design, so you can customise your control panel with all the input modules you need for your setting- and none of the ones you don’t, making it an adaptable, cost-effective solution.
Gasmaster is a compact, versatile and powerful gas detection control panel that combines simple operation with an extensive array of input and output functions.
Gasmaster provides all the information you need about your gas and fire detectors at a glance. The large multi-lingual display shows gas levels from all detectors simultaneously, with an intuitive and user-friendly menu system, making system adjustment and testing using buttons on the front panel a straightforward process requiring minimal training.
The Gasmaster gas detector control panel can operate ‘stand-alone’, or interface with any alarm devices and control systems using a selection of outputs. With the ability to add up to four detectors in virtually any combination, the Gasmaster provides two levels of independent alarm per channel, with remote inhibit and reset capabilities meaning you have full control from anywhere on your site, at all times.
Large Display:
▪ All gas levels are displayed simultaneously for full systems status check at a glance
▪ Alarm messages can be customised to indicate the name or location of any detector in alarm
▪ The LCD can be set to display in many languages, for global usage
User Friendly:
▪ Intuitive menu system enables configuration changes to be made easily
▪ Event log feature allows system fault and alarm history to be viewed
▪ All functions, from day-to-day operation to re-calibration, can be carried out from the front panel making routine testing quick and easy
Adaptable:
▪ Input and output features provide analogue, relay and Modbus outputs to suit your site’s communication needs
▪ Can monitor up to four detectors in virtually any combination of gas detectors, fire zones or Environmental Sampling Units
▪ Compatible with a 4-20mA or mV pellistor-type gas detector, providing ways to reduce system purchase and maintenance costs
Modular and Versatile Design:
▪ You only need to purchase the required number of input modules, as 1, 2 and 3-channel systems can be extended later by adding additional modules
▪ Software enables re-configuration and event log upload in an instant
▪ Two levels of independent alarm per channel
▪ Remote inhibit and re-set facilities give you control from any point on your site
| Gasmaster 1 | Gasmaster 4 | Gasmaster 3 | |
| Size | 288 x 278 x 110mm (11.3 x 10.9 x 4.3 inches) | ||
| Weight | 4.5kg (10lbs) | ||
| Enclosure material | Back-box: cast aluminium Front cover: ABS (flame retardant) |
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| Ingress protection | IP65 | ||
| Power | 100-240Vac 50-60Hz or 20-30Vdc, 60W max |
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| Battery back-up | 1.2Ah batteries fitted internally | ||
| Operating temperature | -10°C to +50°C (14°F to +122°F) | ||
| Inputs | Gas One 2 or 3 wire 4-20mA gas detector (sink or source) or mV pellistor flammable gas detector | One to four 2 or 3-wire 4-20mA gas detectors (sink or source) or mV pellistor flammable gas detectors | |
| Fire One loop of up to 20 conventional smoke/heat detectors or manual call points, or one flame detector (4-20mA or digital contact signal) | One to four loops of up to 20 conventional smoke/heat detectors or manual call points, or one to four flame detectors | ||
| ESU For use with one Crowcon ESU fan |
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| Remote inhibit/retest Via normally open contact |
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| Outputs | Relays DPCO contacts rated 250Vac 8A Low alarm. High alarm. Fault. Alarm relays can be set for rising or falling alarms. Hysteresis can be adjusted on low alarms Low alarm and high alarm per channel plus common low, high and fault. Alarm relays can be set for rising or falling alarms. Hysteresis can be adjusted on low alarms |
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| A/V alarm drive 12Vdc or 24Vdc 650mA max. drive. Suitable for +ve or -ve switched alarms |
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| Analogue 4-20mA (current source, max. loop resistance 700?) or 1-5Vdc (min. load 50k? )
4-20mA for each channel (current source, max. loop resistance 700?) or 1-5Vdc (min. load 50k?) |
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| Serial link RS-485 Modbus RTU for monitoring and control via DCS/SCADA/PLC systems |
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| Communications port | Optional port for PC configuration and event log upload | ||
| Event logging* | Time-stamped log of up to 300 alarms, fault or system intervention activities | ||
| Panel indication | LCD back-lit display shows gas level (in ppb, ppm, % volume or % LEL units), and scrolling alpha-numeric status indication. LED’s for Alarm, Fault, Power and Warning. Integral 85dB sounder (at 10cm) |
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| Approvals | EMC: EN50270, EN60945, FCC: CFR 47 Part 15; ICES – 003 ATEX: May be used in a non-hazardous area as part of an Intrinsically Safe System conforming to EN60079-25 Baseefa 05Y0090/1 |
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| Functional safety | Validated to IEC61508 SIL2 |
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