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ASDevices > Turnkey CGA solutions > N2Sense
Turnkey CGA solutions


The most stable and compact solution

The N2Sense analyzer is based on our enhanced plasma discharge (Epd) technology. Compared to other commercially available plasma-based analyzers which use a single wavelength measurement, the N2Sense uses a combination of our unique focusing/stabilizing and electron injection electrodes with a spectral compensation optical measurement to improve performance and signal stability.


  • < 1 ppb LDL: 10x lower detection limit than competitors’ instruments
  • Ultra-stable reading
  • Leak-free flow controller: Proprietary design
  • Interference free: Based on spectral compensation technology

Typical applications

  • N2 in Ar
  • N2 in He

Other applications

  • Separation plants
  • Chemical plants
  • Argon purification plants
  • Helium liquefication plants
  • Process control
  • Steel industries
  • Semiconductor plants

  • Gas management systems
  • Specialty gas laboratories
  • Leak testing
  • Welding control
  • Glove box
  • Cryogenic truck loading stations

Matrix and impurities measured


  • Ar
  • He


  • N2

ASDevices components

Solution highlights

Spectral compensation

With traditional plasma emission technologies, flow and ambient pressure variations cause measurement errors due to a change in power distribution in the plasma. Our proprietary embedded algorithm overcomes this by continuously adjusting the power distribution, compensating for the Bremsstrahlung (plasma-based emission) fluctuation. The result is the cancellation of flow and pressure effects on the plasma baseline emission.



A special doping compounds (H2O + proprietary compounds) is added to the plasma. In combination with the focusing/stabilizing and electron injection electrodes, this compound helps to further stabilize the plasma discharge and improve the plasma deexcitation process by which photons are emitted for the optical measurement.


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