Multi Gas Analyser

Model 4400 is an extremely all rounded instrument that can integrate different sensing unit modules in order to have a single gas or a multi gas analyser. It is available in transportable version or for rack 19”.

Measureable Gas (Paramagnetic / Thermoparamagnetic / Electrochemical Module)

Oxygen [O2]

Measureable Gas (Thermal Conductivity Module)



Hydrogen [H2]

Helium [He]

Air [Air]

Sulfur Dioxide [SO2]

Acetylene [C2H2]

Argon [Ar]

Nitrogen [N2]

Special 3-Ranges Calibration for Hydrogen Cooled Generators [TR]

Carbon Dioxide [CO2]

Nitrous Oxide [N2O]

Methane [CH4]

Gas listed above can be measured in binary mixtures or non-binary mixtures with cross sensitivity compensation.

Measureable Gas (Catalytic Combustion Module)




Measureable Gas (Infrared Module)



Acetylene [C2H2]         

Carbon Monoxide [CO]

Ethylene Oxide (ETO) [C2H4O]

Nitric Oxide [NO]          

Styrene [C8H8]

Vinyl Chloride (VCM) [C2H3Cl]

Ammonia [NH3]

Ethanol [C2H6O]          

Hydrogen Chloride [HCl]

Nitrous Oxide [N2O]

Sulfur Dioxide [SO2]

Water [H2O]

Carbon Dioxide [CO2]

Ethylene [C2H4]

Methane [CH4]

Propane [C3H6]

Toluene [C7H8]

Xylene [C8H10]

Measureable Gas (Dew Point Module)

Water [H2O]



Main Features

Compact Structure, Easy Integration

  • 19” standard panel chassis, modular design, easy integration with other instrument
  • Modular design

European Compliance

  • Low Voltage Directive 2014/35/EU
  • EMC Directive 2014/30/EU

Available sensing modules:



Thermal Conductivity


Catalytic Combustion


Dew point

Sampling System

The 4400 needs an external sampling system able to deliver an almost clean sample gas to the analyser at the proper temperature, pressure and flow rate.

In some cases, the instrument can integrate sampling components like filters, pumps, flow meters, pressure reducers, electro valves, etc… being configured as a compact as analysis system and can be used for continuous measurements where process conditions are nor extremely severe.

 ADEV has a wide experience in process and can provide the 4400 analyser combined with a sample and condition system designed for the specific application requirements. Contact ADEV for details.