MultiGas Sensore ultravioletto NDUV / UVRAS

NO / NO2 / SO2 / H2S
  • UVRAS = spettroscopia a risonanza UV
  • Permette l'analisi simultanea dei gas NO, NO2 e SO2

Panoramica

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

  • Analisi portatile dei gas (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

Sensore di pressione

  • Compensazione della pressione delle concentrazioni di gas misurate
  • Campo di misura:
    • Versione standard 800 - 1.200 mbar ass.
    • Versione resistente all'H2S 0,2 - 3,5 bar abs.
  • Precisione di misura ±1% dello span (fondo scala)
  • Risoluzione: <1 mbar (2 mbar per la versione resistente all'H2S)
  • Tempo di risposta (t90): 1 s
  • Incl. compensazione della temperatura
Leggi tutto Sensore di pressione

V 1.0 / Rev. 2023-03-21 / Con riserva di modifiche.