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Flamefast Gas Sensor (FGS)

Flamefast Gas Sensor (FGS)

The Flamefast Gas Sensor is one of the most cost effective and versatile units available on the market. With a Voltage Output, Volt Free Contact and a simply Modbus Interface, the FGS can connect t directly into any GasGuard system or directly into a third party controller.

With most modern building 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 to reset once the alarm has cleared. This negates the requirement for a controller, cutting down cost of the equipment and installation.

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View FileFlamefast Gas Sensor (FGS)

Key Features

  • 24V AC/DC Power Supply
  • Pre-calibrated
  • Traffic light LCD readout
  • Volt Free Contact output
  • Latching function with Reset input
  • Basic Modbus output
  • Analogue output
  • Touch button setup and calibration
  • Calibration and ‘End of Life” Reminder
  • Mounts onto any standard Single Gang Junction Box or Conduit Box
  • UK MANUFACTURED

Technical Specification

Power Supply 24V AC/DC ±10%
Power Consumption @ 24v Catalytic (CAT) - 70mA
Electrochemical (EC) - 40mA
Infra-red (IR) - 70mA
Fluorescent (FL) - 40mA
Analogue Output 0/2-10V Full Scale Linear
VFC Output Rating 24V 1A Max
Operating Conditions Temp 0-40°C
Humidity 0-95% (NC)
Response Time (T90) < 1 Minute
Sampling Method Diffusion
Warm-up Time 2 minutes
IP Rating IP40
Housing Material Flame Retardant ABS
Approval CE

Installer Selectable Options

  • LCD backlight Enable/Disable (White backlight)
  • Failsafe option:
    • DE-energise/Energise Relay
    • 0-10V or 2-10V
  • Display Gas Concentration or Gas Formula
  • Latching/Non-Latching
  • Sounder Enable/Disable
  • Add 1 Minute time delay on Relay and Sounder

Dimensions

Height 125 mm
Width 86 mm
Depth 36 mm

Part Numbers & Options / Accessories

Part No Gas Type Range (ppm) Life (years) Type
FGS-NG Methane (CH4) 0-100% LEL 5 CAT
FGS-LPG LPG 0-100% LEL 5 CAT
FGS-H2 Hydrogen 0-100% LEL 5 CAT
FGS-NGIR Methane (CH4) 0-100% LEL 10 IR
FGS-CO2IR Carbon Dioxide 0-5% VOL 10 IR
FGS-CO Carbon Monoxide 0-300ppm 5 EC
FGS-O2 Oxygen 0-25% VOL 5 FL
FGS-COI CO (Industrial) 0-300ppm VOL 2 EC
FGS-NO2 Nitrogen Dioxide 10ppm 2 EC
FGS-NO Nitric Oxide 100ppm 2 EC
FGS-H2 Hydrogen 2000ppm 2 EC
FGS-CL2 Chlorine 10ppm 2 EC
FGS-O3 Ozone 5ppm 2 EC

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