General Information on NO₂ – Nitrogen dioxide
Nitrogen dioxide (NO₂) is a reddish-brown, toxic, pungent chlorine-like smelling gas. The gas belongs to the group of nitrogen oxides and can be easily liquefied to N₂O4 (dinitrogen tetraoxide) by increasing the pressure or cooling with dimerization. Nitrogen dioxide is used for the production of nitric acid. In trace amounts, nitrogen dioxide is formed from oxygen and nitrogen as the two main components of the atmosphere, both in natural processes such as lightning strikes and in technical combustion processes, e.g. in internal combustion engines.
Gas Sensors for the Detection of NO₂
- Innovative NDUV Sensor (non-dispersive ultraviolet sensor)
- Max. 2 simultaneously detectable gases per sensor unit
- Measuring ranges from ppm to Vol.-%
- Innovative UVRAS Sensor (UV resonance absorption spectroscopy)
- Max. 3 simultaneously detectable gases per sensor unit
- Combination of UVRAS and NDUV technology
RITTER »MultiGas« Combined Modules NDIR + NDUV
RITTER »MultiGas« Modules can also be a combination of both NDIR sensors and NDUV sensors on a common board. With this unit, up to 3 gas components can be measured simultaneously. The basic electronics can supply IR and UV radiation 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.
Please note: For technical and chemical reasons, not every combination of gases/measuring ranges can be analyzed/measured in a single or combined RITTER »MultiGas« module. As this is a rather complex topic, please do not hesitate to contact one of our gas experts first.
