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Monicon CGS500-IR NDIR Gas Sensor

CGS500-IR NDIR Gas SensorThe CGS500-IR sensor is a NDIR (non-dispersive infrared) sensor designed to replace thermocatalytic gas sensors for monitoring hydrocarbon gases in the range 0-100% LEL. The CGS500-IR is available as a sensor only or fitted in an EEx e certified junction box.

The CGS500-IR uses advanced miniaturised NDIR technology combined with surface-mount microprocessor and firmware technology. A pulsed infrared source emits a broad spectrum infrared beam within an optical cavity. The system measures the adsorption of infrared energy as it passes through a gas sample. Different gases have clearly defined absorption characteristics, and their concentration can be determined by their absorption of infrared radiation.

To compensate for interfering factors another wavelength filter is used to measure the total transmission through the optical cavity and is not affected by the gas being monitored. By comparing the infrared energy reaching each of the two detectors, the concentration of the gas sample can be determined. The signal processor compares and linearises these two signals. A thermistor monitors the sensor temperature and the signal processor provides temperature compensation.

Key Features:

  • NDIR Gas Sensor
  • Temperature compensated
  • Low drift
  • Unaffected by catalytic poisons
  • Wheatstone Bridge (pellistor) compatible
  • Sensor MTBF of 10 years
  • Fast response time
  • Rugged stainless steel body
  • Detects most hydrocarbons
  • Many accessories options
  • Certified ATEX II 2 G EEx d IIC T6

For more information

Telephone us on on +44 (0)1908 227722

Gasmet Technologies (UK) Limited
Woolleys Farm
Welford Road

Gasmet Technologies (UK) Limited is a subsidiary of Gasmet Technologies Oy

Tel: +44 (0)1908 227722
Fax: +44 (0)1908 227733

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