Intrinsically Safe Fixed Gas Detectors FGD3

Fitted with Infrared, Catalytic or EC Sensor for Flammable or Toxic Gases

Key features

  • Intrinsically safe when used in conjunction with a safety barrier
  • Plug-in replaceable sensors
  • Digital display of gas reading
  • Optional weatherguard
  • Single operator calibration
  • Industry standard 4 to 20 mA output


Our intrinsically safe fixed gas detector is intended for use in a potentially explosive atmosphere where, due to the nature of the environment or the industrial process taking place, there is the risk of an incendive spark from electrical apparatus causing an explosion.

These gas detectors are designed so that the energy produced in the event of an electrical fault is insufficient to cause an incendive spark.

An Electrical Safety Barrier Device must be used to connect power and signals between the gas detector and the 'Safe Area' (i.e. the area outside the potentially explosive atmosphere where mains powered equipment exists). This is necessary in order to preserve the safety integrity of the installation by limiting the power entering the potentially explosive atmosphere to a safe level - refer to the Accessories section for details of suitable barriers. Examples are the water, pharmaceuticals and chemicals industries.


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