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

For the detection of NO an EDL (electrodeless gas discharge lamp) is used. In the EDL, N2 and O2 are converted to NO and produce selective UV radiation. With this radiation a cross sensitivity free NO measurement is made possible. This method is called UV resonance spectroscopy (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).

Applications

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

Characteristics and Benefits

  • Group of detectable gases:
  • 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

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.

Additional sensors / Sensor options

Capteur de pression

  • Compensation de la pression des concentrations de gaz mesurées
  • Plage de mesure:
    • Version standard 800 - 1.200 mbar abs.
    • Version résistante au H2S 0,2 - 3,5 bar abs.
  • Précision de mesure ±1% de l'étendue de mesure (pleine échelle)
  • Résolution : <1 mbar (2 mbar pour la version résistante à H2S)
  • Temps de réponse (t90) : 1 s
  • Compensation de température incluse
Lire la suiteCapteur de pression

V 1.0 / Rev. 2023-03-21 / Sous réserve de modifications.