MultiGas Module infrarouge NDIR

MultiGas Module infrarouge NDIR

Vue d’ensemble

CO2 CO N2O CH4 CnHm* CF4 SF6 H2O

The RITTER MultiGas Sensors NDIR Module (non-dispersive IR sensor) has been specially developed for use in high-quality gas analysis. In the design phase special emphasis was placed on high stability and a low detection limit. These goals could be fully achieved by using high-performance light-emitting diodes (IR-LED) and thermal micro-radiators which were adapted to the requirements of gas detection. In the spectral range from 2 μm to 12 μm, carbon dioxide, carbon monoxide, hydrocarbons, water vapor and sulfur hexafluoride can be safely detected down to the ppm range with this innovative sensor platform.

The various photometric components such as detectors, emitters, measuring sample cell, etc. will be assembled user-specifically in a high-quality tabletop casing by RITTER.
RITTER MultiGas Sensorgehäuse

Applications

Characteristics and Benefits

  • Group of detectable gases:
    CO2 CO N2O CH4 CnHm* CF4 SF6 H2O
  • Measurement technology: NDIR-Sensor (non-dispersive IR sensor)
  • Précision de mesure ±2% of Full Scale (F.S.)
  • No cross-sensitivity to H2
  • Operating temperature: 5 – 45 °C
  • Operating pressure: 800 – 1200 mbar (hPa) abs.
  • Flow rate range: 1 ltr/day – 100 ltr/h
  • Warm-up time: 2 min
  • Response time (t90): ≈ 3 sec
  • Interface USB, on request RS 232
  • Sensor cuvette: Aluminum, gold plated for sensor length 100 ≥ mm
  • Incl. temperature compensation
  • Incl. data acquisition software
  • In tabletop casing, overall dimensions W x H x L 171 x 85 x 246 mm, weight approx. 1,9 kg
  • Gas connection: PVDF screw-type tube connection for tube Øi 4 mm, Øa 6 mm
  • Power supply: 24 VDC (incl. power plug 100 – 240 VAC / 24 VDC)

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 / Additional Sensors

Capteur d’oxygène

  • Capteur électrochimique
  • Les gammes de mesure : 0 - 25 % ou 0 - 100
  • Précision de la mesure ±2% de l'étendue (pleine échelle)
  • Résolution : < 0,5% de la portée (pleine échelle)
  • Temps de réponse (t90) : ≈ 15 s ; version automobile ≈ 5 s
  • Durée de vie : environ 5 ans

Capteur de pression

  • Compensation de la pression des concentrations de gaz mesurées
  • Plage de mesure : 800 - 1.200 mbar abs.
  • Précision de mesure ±1% de l'étendue de mesure (pleine échelle)
  • Résolution : 1 mbar
  • Temps de réponse (t90) : 1 s
  • Compensation de température incluse

Capteur d’humidité

  • Capteur d'humidité polymère
  • Plage de mesure : 0-100% RH
  • Précision de la mesure ±2% HR de l'étendue (pleine échelle)
  • Résolution : ±1% RH
  • Temps de réponse (t90) : 12 s
  • Compensation de température incluse
  • Valeurs indiquées : humidité relative en % RH

Sortie de Tension Analogique

  • Le module de sortie de tension analogique permet de fournir des valeurs de concentration de gaz pour un maximum de 4 gaz différents sur 4 canaux distincts
  • Niveaux de tension:
    • 0 – 2 V
    • 0 – 5 V
    • 0 – 10 V

V 1.0 / Rev. 2021-09-21 / Sous réserve de modifications.