HC-51M Total Hydrcarbons FID Analyzer


Using a proven flame ionisation detector (FID), the analyzer HC51M measures ambient air hydrocarbons (THC, CH4, nmHC) in the range 0-1000 ppm.

Available in 2 versions for the simultaneous and continuous measurement of:
• THC (Total Hydrocarbons)
• THC / CH4 / nmHC (Total Hydrocarbons, methane and non-methane)”

  • Brand


Envea Ambient


  • Measurements in the range of 0-1,000 ppm
  • Graphic Liquid Crystal Display (LCD)
  • Interactive menu driven software
  • Auto-ranging
  • User programmable ranges and time averages
  • Built-in storage of 1 year average data
  • Full remote emulation of the analyzer
  • Field proven technology and design
  • Option: internal zero air / external hydrogen generator, internal nmHC convertor / fluid drain
  • High sensitivity, stable, linear FID detector
  • LCD display with synoptic flow diagram display, real time calibration graph
  • Built-in serial interface (RS232/RS422)


Technical specifications
Measured parameter THC / nmHC
Technology Flame Ionization Detector (FID)
US-EPA Approval / QAL 1 Certification N/A
Measurement ranges 0-10 ppm / 0-1000 ppm
Measurement units ppb, ppm, µg/m3 (user-selectable)
Lower Detectable Limit (2σ) < 0.05 ppm
Noise (σ) 0.025 ppm
Zero drift <0.1 ppm / 24h
Span drift < 1% / 24h
Linearity ± 1% FS
Sample flow rate 4.8L/h
Sampling pump Internal
Temperature range +10°C to 35°C
Data storage Last 1500 average data
Included I/O 3 AO/RS232/RS422
Weight (Kg) 27
Dimensions mm (LxWxH) 483 x 581 x 177
Chassis 19″ Rack, 4U


More From Avensys

More Services

Our certified engineers and technicians can intervene from the initial consultation and planning stages, throughout the life of instruments and systems.
Happy Professional Heavy Industry Engineer Worker Wearing Uniform, and Hard Hat in a Steel Factory. Smiling Industrial Specialist Standing in a Metal Construction Manufacture.

Field & In House

Develop customized monitoring plans that address client's unique needs...

Start up

Start up & Commissioning is a critical phase in the life cycle of any project.

Integrated Systems

The benefits include improved performance, reduced costs, and increased reliability.


We believe that product training is essential for both our employees and our clients.