Industry leading precision & speed: H2 in N2 50ppm at 30 ms response time
Survives water, measures accurately: No destruction on contact with water & reduced cross-sensitivity
Safe, low maintenance technology: TCD, no chemical, optical or moving parts
Versatile and cost-efficient: measurement from a few ppm to 100 vol% no sample preparation necessary
in hydrogen measurement


  • Monitoring of the lower explosion level in Air (LEL) 0 – 4 Vol% H2 in Air & H2O
  • Monitoring of the Hydrogen purity 70-100 Vol% H2 in N2
  • Monitoring of the Hydrogen purity 70-100 Vol% H2 in N2
Hydrogen Generator


Challenges for H2 measurement in electrolyzers:

  • Humidity in the process gas falsifies measurements with thermal conductivity
  • Cross-sensitivity compensation or dehumidification of the gas is required
  • The reaction times (t90) should be kept low in the process require complex sample preparation
  • Some processes receive corrosive gases
  • High operating pressures and process temperature require additional sample preparation

Advantages Archigas devices

Advantages of the TCD3000 for H2 measurement in electrolysers:

  • Humidity-independent measurement with thermal conductivity.
  • Short response times of less than one second.
  • Pressures up to 200 bara are permissible.
  • Corrosion resistance.
  • Continuous online quality monitoring up to H2 5.0 possible.
  • Process gas temperatures up to 100°C possible.
  • No additional costly equipment needed for quality measurement.
  • Reasonable price.