EnergyTech 401 – Cross Duct CO Analyser
With no sampling system to maintain, CODEL cross-duct monitors are easy to install and simple to operate – vital for plant where there may be little or no technical support available.
The EnergyTech 401 analyser may be used as a complete stand alone monitor or as part of an integrated emission monitoring, logging and reporting system. The instrument is particularly suited to large/dirty processes.
The CODEL EnergyTech 401 projects an infrared beam across the duct and through the flue gas to a receiver unit. The light beam is tuned to a specific wavelength where CO molecules absorb light energy. The more molecules there are in the light beam the greater the absorption. The wavelength is chosen specifically to ensure that there is no interference from other gases or water vapour.
To isolate the interference for dust particles the EnergyTech 401 also uses the principle of Gas Filter Correlation (GFC) where a live and reference measurement are generated in the receiver. The live measurement is sensitive to changes in energy caused by CO or dust. The reference channel is de-sensitised to CO using a high concentration gas cell. The difference between the live and reference channels is, therefore, a function of CO concentration.
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