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MultiGas Capteur ultraviolet NDUV / UVRAS

NO / NO2 / SO2 / H2S
  • UVRAS = spectroscopie de résonance UV
  • Permet l'analyse simultanée des gaz NO, NO2 et SO2

Vue d’ensemble

SO2 NO2 NO

Pour la détection du NO, on utilise une EDL (lampe à décharge gazeuse sans électrode). Dans l'EDL, 2 et O2 sont convertis en NO et produisent un rayonnement UV sélectif. Ce rayonnement permet de mesurer le NO sans sensibilité croisée. Cette méthode est appelée spectroscopie de résonance UV (UVRAS).

A combination of both technologies (UVRAS & NDUV) allows simultaneous gas analysis of NO, NO2 and SO2 in the lower ppm range, which is particularly important in flue gas analysis (CEM, Continuous Emission Monitoring).
rit 2021 sensorik gehaeuse Intertego 3HE IT154430

Applications

  • Analyse portable des gaz (PEMS, Portable Emission Monitoring System)

Characteristics and Benefits

  • Group of detectable gases:
    SO2 NO2 NO
  • Temperature controlled up to 55 °C
  • Fast response time < 3 seconds
  • Durable EDL (> 16000 h)
  • Flow-independent measurement 0-2 L/min
  • No influence of gas humidity
  • No NOx converter required
  • Compact size
  • In »Thermobox« as standard for stable measurement conditions

Recalibration

  • Readjustment of the zero-point is recommended once a week.
  • Contamination of the measuring cuvette can lead to shifting of the end-point. Due to the integrated filter, re-adjustment of the end-point is generally not required – but can be performed once a year.
  • Additionally, cartridges filled with an inert and the respective test gas for recalibration of the zero and end-point can be provided.
  • Long-term drift is < 1% of Full Scale (F.S.) / 24 h.

Options / Capteurs Supplémentaires

V 1.0 / Rev. 2022-04-05 / Sous réserve de modifications.