Gas Sensor (FGS)

The Flamefast Gas Sensor is one of the most versatile gas sensors available on the market. With an Analogue and Relay output, as well as a BACnet MS/TP interface, FGS can connect directly into most third-party controllers or can easily connect to any of the Flamefast range of gas safety systems.

Top Key Features

  • 24V AC/DC Power Supply
  • Pre-calibrated
  • Traffic light LCD readout
  • BACnet MS/TP over RS485
  • UK Manufactured

Overview

The Flamefast Gas Sensor is one of the most versatile gas sensors available on the market. With an Analogue and Relay output, as well as a BACnet MS/TP interface, FGS can connect directly into most third-party controllers or can easily connect to any of the Flamefast range of gas safety systems.

In a large proportion of modern buildings, the plant room safety systems are BMS integrated, and the FGS has been designed with this in mind. It can be treated like any other field sensor, the latching facility allows direct integration with the primary safety circuit, then simply pulse the Digital Input, or reset over the BACnet network once the alarm has cleared. This negates the requirement for a controller, cutting down cost of the equipment and installation.

The broadband Pellistor and Infra-red Hydro-carbon sensors can be calibrated to suit most combustible gases with the option to factory callibrate  and rename the sensor for the specific gas. Flamefast can also offer a full range of toxic gas sensors, including H2S, HCN and many more (please contact for details). 

Key Features

  • 24V AC/DC Power Supply
  • Pre-calibrated
  • Traffic light LCD readout
  • Volt free contact output
  • BACnet MS/TP over RS485
  • Latching function with Reset input
  • Analogue output
  • Simple configuration and calibration
  • Calibration and ‘End of Life’ reminders
  • Oxygen Sensors monitor Enrichment and Depletion as standard
  • Mounts onto any standard single gang junction box or conduit box
  • UK MANUFACTURED

Dimensions

Height:125 mm
Width:86 mm
Depth:36 mm

Technical Specifications

Power Supply:24V AC/DC ± 10%
Power Consumption:100mA
BACnet:MS/TP over RS485
Baud: 9k6, 19k2, 38k4 or 76k8
127 Address (1/10th Load)
Full specification available on request
Analogue Outputs:0/2-10V Full scale linear
VFC Output:SPDT - 1A @ 24V Max
Audible:60dB @ 30cm
Operation Conditions:
Temp 5-40°C
Humidity 0-95%(NC)
Sampling Method:Diffusion
Warm-up Time:60 Seconds (24 Hours for full stability)
Response Time (T90):< 60 Seconds (Adjustable)
Housing Material:PC/ABS
IP Rating:IP40
Colour:Pure White (RAL9010)
Approval:CE, UKCA

Installer Selectable Options

LCD backlightEnable/Disable
Failsafe optionEnergise/De-energise Relay
 0-10V or 2-10V
Alarm LatchingEnable/Disable
Audible AlarmEnable/Disable
Auto Zero CalibrationEnable/Disable
Alarm1, Alarm 2 & Relay Set-points
Analogue Output Range
Display Gas Concentration or Formula

NEED THE REQUIREMENTS?

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Commercial
Kitchens

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Teaching
Areas

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Plant 
Rooms

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Part Numbers & Options / Accessories

Part NoGasRangeTypical Life (years)
FGS-NGNatural Gas (Methane)100% LEL5
FGS-LPGPropane100% LEL5
FGS-H2Hydrogen (LEL)100% LEL5
FGS-HCHydro-carbon (Pellistor)100% LEL5
FGS-IRHCHydro-carbon (Infra-red)100% LEL5
FGS-SF6Sulfur Hexafluoride1,000ppm5
FGS-CO2Carbon Dioxide5%5
FGS-COCarbon Monoxide (Plant/Carpark)200ppm5
FGS-NO2Nitrogen Dioxide5ppm3
FGS-NH3Ammonia100ppm3
FGS-CL2Chlorine5ppm3
FGS-H2eHydrogen (Electrochemical)2,000ppm3
FGS-SO2Sulphur Dioxide5ppm3
FGS-O2Oxygen25%5

OTHER GASES AVAILABLE ON REQUEST

Data Sheets

General specifications in .pdf format

Operation Manuals

Installation and Operation instruction in .pdf format

BIM Files

CAD drawings in .rfa format

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