NEO Monitors AS

- Model II MP - Multipass (MP) Cabinet Monitor

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NEO Monitors LaserGas is using Tuneable Laser Absorption Spectroscopy (TLAS) i.e. a non-contact optical measurement method employing solid-state laser sources. Therefore, the sensor remains unaffected by contaminants and corrosives and does not require regular maintenance. The laser beam is coupled into a Herriott cell, where it is reflected multiple times between two spherical mirrors in order to enhance the analyser sensitivity. The MP monitor is a turn-key instrument. No other operations than connecting power, sample gas tubes and optional purge are required during installation. To avoid fouling of optical parts in the Multipass cell the cleanliness of the sample gas must be ensured. Filtering the sample gas in an appropriate extractive system may be required for some applications.

  • Short response time (flow depended)
  • Very low detection limits (ppb for most gases)
  • No interference from background gases
  • Stable calibration
  • No zero drift
  • Offline gas analysis in controlled environment
  • No moving parts, no consumables, turn-key instrument
  • ATEX and CSA certified

NEO Monitors LaserGas is using Tuneable Diode Laser Absorption Spectroscopy (TDLAS) i.e. a non-contact optical measurement method employing solid-state laser sources. Therefore, the sensor remains unaffected by contaminants and corrosives and does not require regular maintenance. The laser beam is coupled into a so-called Herriott cell, where it is reflected multiple times between two spherical mirrors in order to enhance the analyser sensitivity.

The MP monitor is a turn-key instrument. No other operations than connecting power, sample gas tubes and optional purge are required during installation. To avoid fouling of optical parts in the Multipass cell the cleanliness of the sample gas must be ensured. Filtering the sample gas in an appropriate extractive system may be required for some applications.

With market experience since 1995 and an installed base of more than 3000 LaserGas analysers, we offer our customers a long-term experience from many challenging applications:

  • Chemical industry (e.g. trace moisture in olefin reactors etc.)
  • Petrochemical industry (contaminants like H2S in natural gas)
  • Industrial gas (impurities in pure gases)
  • Semiconductor industry (contaminants in reactive gases)
  • Power plants (stack testing of corrosive emission gases)
  • H2S emission monitoring (pulp & paper, refineries, biogas production)

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