MultiGas Módulo Ultravioleta NDUV / UVRAS

NO / NO2 / SO2 / H2S
  • UVRAS = Espectroscopía de resonancia UV
  • Permite el análisis simultáneo de gases de NO, NO2 y SO2

Vista previa

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

  • Análisis portátil de gases (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

Sensor de presión

  • Compensación de la presión de las concentraciones de gas medidas
  • Rango de medida:
    • Versión estándar 800 - 1.200 mbar abs.
    • Versión resistente al H2S 0,2 - 3,5 bar abs.
  • Exactitud de la medición ±1% del span (escala completa)
  • Resolución: <1 mbar (2 mbar para la versión resistente al H2S)
  • Tiempo de respuesta (t90): 1 s
  • Incluye compensación de temperatura
Continuar leyendoSensor de presión

V 1.0 / Rev. 2023-03-21 / Sujeto a modificaciones.