MultiGas Module infrarouge NDIR

Vue d’ensemble

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.

Applications

Characteristics and Benefits

Group of detectable gases:
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 Ø_i 4 mm, Ø_a 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.

Additional sensors / Sensor options

Capteur d’oxygène

Capteur électrochimique
Plages de mesure:
- Version standard 0 - 25 % ou 0 - 100 %
- Version résistante à l'H₂S 0,5 - 35 %
Précision de la mesure ±2% de l'étendue (pleine échelle)
Résolution : < 0,5% de la portée (pleine échelle)
Temps de réponse (t₉₀) : ≈ 5 - 10 s ; version automobile < 3,5 s
Durée de vie : environ 5 ans

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

Capteur d’humidité

Capteur d'humidité polymère
Plage de mesure : 0-100% rH
Précision de la mesure ±2% rH de l'étendue (pleine échelle)
Résolution : ±1% rH
Temps de réponse (t₉₀) : 12 s
Compensation de température incluse
Valeurs indiquées : humidité absolue [% absH] et relative [% rH]

Sortie de Tension Analogique

Allows the output of gas concentration values for up to 4 different gases at 4 separate channels
4 parallel signal outputs
3 x gas concentration signals including oxygen sensor
1 x value from humidity sensor
Resolution: 16 bit
Update rate: 1 sec

MultiGas

Chauffage des cas

Prevents condensation of humid gas inside of the sensor
Temperature controller: 30 - 50 °C
Control accuracy: ± 0.2 K
Heating power: 12 Watt

Downloads

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

La version la plus récente de cette fiche se trouve à l'adresse suivante …
https://dlr.ritter.de/fr/produits/capteurs-multigas/multigas-module-infrarouge-ndir/

Dr.-Ing. RITTER Apparatebau GmbH & Co. KG · Coloniastrasse 19-23 · D-44892 Bochum · Allemagne
Pour toute question, veuillez contacter mailbox@ritter.de ou votre partenaire de distribution local (sur notre page de présentation)