Crowcon Gasmaster 4 One to Four Channel Unit with Communications Port (required for Gasmaster PC connection and event log upload) - C01927

  • Crowcon Gasmaster 4 One to Four Channel Unit with Communications Port (required for Gasmaster PC connection and event log upload) - C01927
  • Crowcon Gasmaster 4 One to Four Channel Unit with Communications Port (required for Gasmaster PC connection and event log upload) - C01927
  • Crowcon Gasmaster 4 One to Four Channel Unit with Communications Port (required for Gasmaster PC connection and event log upload) - C01927
  • Crowcon Gasmaster 4 One to Four Channel Unit with Communications Port (required for Gasmaster PC connection and event log upload) - C01927

Item #
C01927
Price
$2,305.00
Quantity
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C01927 Gasmaster 4 One to Four Channel Unit with Communications Port (required for Gasmaster PC connection and event log upload) by Crowcon

Crowcon Gasmaster is a compact but powerful control system that combines simple operation with an extensive array of input and output functions.

Crowcon 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, and enables system adjustment and testing using buttons on the front panel.

Crowcon Gasmaster can operate 'stand-alone' or interface with any alarm devices and control systems using a selection of outputs.

Large display

  • All gas levels are displayed simultaneously
  • 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
  • Enables full systems status check at a glance

User friendly

  • Menu system is intuitive and easy to use
  • All functions, from day-to-day operation to re-calibration, can be carried out from the front panel
  • Event log feature
  • Enables configuration changes to be made easily
  • Routine testing can be performed rapidly
  • Enables system fault and alarm history to be viewed

Versatile input and output features

  • Provides analogue, relay and Modbus outputs
  • Flexibility
  • Two levels of independent alarm per channel
  • Remote inhibit and reset facilities
  • Compatible with 4-20mA or mV pellistor type gas detectors
  • Facilitating communication around the site
  • Gasmaster can monitor up to four detectors in virtually any combination of gas detectors, fire zones or Environmental Sampling Unit
  • Software enables re-configuration and event log upload in an instant
  • Can be configured to suit site requirements
  • Enables control from any point on your site
  • mV pellistor detectors reduce system purchase and maintenance costs

Modular design

  • You only need to purchase the required number of input modules
  • 1, 2 and 3 channel systems can be extended later by adding additional modules



   
Gasmaster 1
Gasmaster 4
Size  
288 x 278 x 110mm (11.3 x 10.9 x 4.3 ins)
Weight  
4.5kg (10lbs)
Enclosure material  
Back-box: cast aluminium
Front cover: ABS (flame retardant)
Ingress protection  
IP65
Power  
100-240Vac 50-60Hz or
20-30Vdc, 60W max
Battery back-up  
1.2Ah batteries fitted internally
Operating temperature  
-10°C to + 50°C (14°F to 122°F)
Humidity  
0 to 95% RH non-condensing
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 etectors
Environmental Sampling Unit
For use with one Crowcon ESU fan
For use with one to four Crowcon ESU fans
Remote inhibit
Via normally open contact
Remote reset
Via normally open contact
Outputs
Relays DPCO contacts rated 250Vac 8A. Relays can be set as energised or de-energised, latching or non-latchng, latching acceptable
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
A/V alarm drive
12Vdc or 24Vdc 650mA max. drive. Suitable for +ve or -ve switched alarms
Analogue
4-20mA (current source, max. loop resistance 700Ω) or 1-5Vdc (min. load 50kΩ )
4-20mA for each channel (current source, max. loop resistance 700Ω) or 1-5Vdc (min. load 50kΩ)
Serial link
RS-485 Modbus RTU for monitoring and control via DCS/SCADA/PLC systems
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)
Approvals  
EMC: EN50270, EN60945, FCC Part 15, ICES002
ATEX: EN60079-25:2010
Functional safety  
Validated to IEC61508
SIL2