MultiGas Sensore infrarossi NDIR

Panoramica

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)
Accuratezza di misurazione ±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

Sensore di ossigeno

Sensore elettrochimico
Campi di misura:
- Versione standard 0 - 25 % o 0 - 100
- Versione resistente all'H₂S 0,5 - 35 %
Precisione di misura ±2% dello span (fondo scala)
Risoluzione: < 0,5% dell'ampiezza (fondo scala)
Tempo di risposta (t₉₀): 5 - 10 s; versione automotive < 3,5 s
Durata: ca. 5 anni

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

Sensore di umidità

Sensore di umidità dei polimeri
Campo di misura: 0-100% rH
Precisione di misura ±2% rH di span (fondo scala)
Risoluzione: ±1% rH
Tempo di risposta (t₉₀): 12 s
Incl. compensazione della temperatura
Valori indicati: umidità assoluta [% absH] e relativa [% rH]

Uscita di Tensione Analogica

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

Caso Riscaldamento

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 / Con riserva di modifiche.

La versione più recente di questa scheda tecnica è disponibile all'indirizzo …
https://dlr.ritter.de/it/prodotti/sensori-multigas/multigas-sensore-infrarossi-ndir/

Dr.-Ing. RITTER Apparatebau GmbH & Co. KG · Coloniastrasse 19-23 · D-44892 Bochum · Germania
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