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Fagus GreCon, Inc.648 Griffith Rd. Suite A
Charlotte, NC 28217U.S.A.

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Spark Detector FM 1/8

The best ignition source detection for dark conditions

Key Benefits

  • Highly sensitive detection of sparks and embers
  • Detection not dependent on temperature of ignition source
  • Highly reliable detection of ignition sources, even at high transport speed and load
  • Flush-mounted installation of detector optics for maximum life
  • VdS and FM approved - Dust Ex safety options available for ATEX and IECEx


The FM 1/8 is a highly sensitive spark and ember detector for protection against fire and explosion in industrial processes. The detector reacts to the infrared range of light radiated by an ignition source.  It is designed to be used in an environment free from ambient light.

The detector can be connected to every GreCon control console using a standard three core cable.  A range of flexible mounting adapter options exist to suit any environment. The control console interfaces with the detector for monitoring of ignition sources within the process, the configuration of detection parameters and automated check of the detector optics’ correct function.

Technical Specification


Spark detector sensors contain photo diode elements that detects a spark or burning ember's infrared radiation and signal the control console


Spectral sensitivity: 780 nm to 1100 nm
Viewing angle: 120°
Ambient temperature: -40 °F to +158 °F [-40 °C to +70 °C]
Ambient temperature in the material flow: max. 176 °F [+80 °C] at the lens
Relative atmospheric humidity: 0 to 95 %, non-condensing
Transportation speed: 6 to 164 ft/s [2 to 50 m/s] (other speeds on demand)
Use: in areas without daylight and without artificial light
Connection: ready-to-use connecting cable, cable length 8 ft [2.5 m] (3 x 0.5 mm²) optionally 82 ft [25 m] (3 x 0.5 mm²)
Material of housing: aluminium die casting (GD-AlSi12)
Protection class: IP 65
Housing dimensions: 3.3 x 3.3 x 1.2 in [84 x 84 x 31 mm]
Housing colour: red (RAL 3000), lacquered
Weight: 270 g (excluding connecting cable)
Optics: hardened mineral glass
Available mounting adapters: threaded adapter FM 1/8 Ex, welding adapter FM 1/8 Ex, air purge adapter SPA and SPA Ex

Air purge adapter

If dirt accumulation or other build-up on the sensor optics is expected, special air purge adapters increase the detection reliability. Cleaning intervals are thus extended. 

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