OPSIS CEM systems measure multiple emissions or process gases in real time in situ. Using the
DOAS (Differential Optical Absorption Spectroscopy) technique, the system is non-contact, with fast response.
One system can be configured to monitor NO, NO
2, SO
2, O
3, H
2S, NH
3, CO, CO
2, HF, H
2O, CH
4, Hg, HCl, Cl
2, ClO
2, CS
2, Phenol, Formaldehyde, among other
gaseous compounds.
A basic system includes an analyser, an emitter/receiver set, and an optical fibre cable.
The system has been tested and approved by
TÜV and
MCERTS according to EN 15267, and a range of other
international authorities.