Hydrocarbon Analyzer

Total Hydrocarbons and VOC Analyzers by FI


The HC51M analyzer’s electrometer measures the current generated by the  ionization of the carbon atoms in the flame fueled by a hydrogen/air mixture.

Supplier: Environment SA


  • High sensitivity, stable, linear FID detector
  • Temperature controlled pneumatics
  • Interactive menu driven software
  • Synoptic flow diagram display

To distinguish between total and non-methane hydrocarbons an optional  converter is used to oxidise all the non-methane hydrocarbons. The  temperature controlled pneumatics prevents condensation.
The flow is automatically adjusted and the instrument is provided with  automatic ignition of the flame in case of flame out or power failure.
The HC51M features a built-in zero/span solenoid valves to perform manual,  automatic and remote zero/span checks.


  • Lower detectable limit: 0.05 ppm
  • Response time: automatic or programmable
  • Span drift: < 1 % / 7 days
  • Linearity: ± 1 % full scale

Product applications

  • Ambient air monitoring (fixe and mobile AQMS monitoring stations)
  • Continuous emissions monitoring (CEM) by dilution extraction
  • Measurement of impurities in industrial gases