MultiGas Infrared plus Ultraviolet Module

  • Combination of NDIR and NDUV Sensor
  • Enables the measurement of 3 gas components simultaneously

Overview

The third RITTER MultiGas module is a combination of both Module NDIR and Module NDUV on a common board. With this unit, up to 3 gas components can be measured simultaneously. The basic electronics can supply IR and UV radia- tion sources with different frequencies for 0 Hz (DC) to 100 Hz (AC). This system is an ideal tool for detecting multi-component gas at low ppm levels.

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

  • Biogas research
  • Environmental and process measuring technology
  • Elemental analysis
  • TOC-analyzers
  • Industrial gas analysis
  • Natural gas analysis

Characteristics and Benefits

  • Group of detectable gases:
    CO2 CO N2O CH4 CnHm* CF4 SF6 H2O O3 CL2 H2S SO2 NO2
  • Measurement accuracy ±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: IR 2 min / UV 1 min
  • Response time (t90): ≈ 1-2 sec depending on gas
  • Interface USB, on request RS 232
  • IR Sensor cuvette: Aluminum, gold plated for sensor length 100 ≥ mm
  • UV Sensor cuvette:

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

Oxygen Sensor

  • Electrochemical sensor
  • Measuring ranges:
    • Standard version 0 – 25 % or 0 – 100 %
    • H2S resistant version 0.5 – 35 %
  • Measurement accuracy ±2 % of span (full scale)
  • Resolution: < 0.5 % of span (full scale)
  • Response time (t90): 5 - 10 s; automotive version < 3.5 s
  • Lifetime: approx. 5 years
Read MoreOxygen Sensor

Pressure Sensor

  • Pressure compensation of measured gas concentrations
  • Measuring ranges:
    • Standard version 800 - 1,200 mbar abs.
    • H2S resistant version 0.2 – 3.5 bar abs.
  • Measurement accuracy ±1% of span (full scale)
  • Resolution: <1 mbar (2 mbar for H2S resistant version)
  • Response time (t90): 1 s
  • Incl. temperature compensation
Read MorePressure Sensor

Downloads

V 1.0 / Rev. 2023-03-21 / Subject to alterations.

The most recent version of this data-sheet can be found at …
https://dlr.ritter.de/en/products/multigas-sensors/multigas-infrared-plus-ultraviolet-module/

Dr.-Ing. RITTER Apparatebau GmbH & Co. KG · Coloniastrasse 19-23 · D-44892 Bochum · Germany
For questions please contact mailbox@ritter.de or your local distribution partner (on our overview page)