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Extractive Gas Analyser

The GCEM40E hot extractive multi-channel gas analyser is CODEL's industry-proven continuous emissions monitor for difficult applications.


The GCEM40E hot extractive multi-channel gas analyser is CODEL’s industry-proven continuous emissions monitor for difficult applications. Designed exclusively for use on a wide range of applications where the flue gas temperature is abnormally high, low or saturated.


Three decades of development, knowledge and practical experience have been utilised to produce this advanced technology gas analyser which gives complete flexibility of use on process or emissions applications whilst delivering superb accuracy and repeatability at a competitive price.

Features & Benefits

Typical Applications

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      GCEM40E Specification

      Gas Species OptionsMaximum 7 gases from: CO | NO | NO2 |NOx | N2O | SO2 | HCl | CH4 and CO2. Gas temperature pressure and H2O for data normalisation are standard.
      Measuring unitsppm | mg/Nm³ | mg/m³ | %
      Response TimeLess than 200 Seconds (T90)- MCERTS Specification
      Ambient Temperature-20°C to +50°C
      Power supply48V DC from CEMS Control Panel
      ConstructionCorrosion resistant epoxy coated aluminium housing sealed to IP66
      Analogue outputs4-20mA current outputs for each gas channel supplied isolated. 500O load max fully configurable from software
      Logic Outputsup to 8 x volt-free SPCO contacts 50V 1A max. Configurable as alarm contacts | 1 x volt-free SPCO contact 50V 1A max for data valid signal
      Serial DataRS485

      For a full product specification please download the product brochure below.