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your questions - our answers!

What kind of measurement principle do BCP-EtOH sensors use?

The sensor contains an infrared (IR) source of radiation, a detector and the evaluation electronics. The IR light beam is reflected by the gas filled measurement adapter and the light which is weakened by the analyses gas is measured by the detector.

Is it possible to determine an alcohol concentration in a liquid phase using the BCP-EtOH?

Provided that head space and medium are held on the same temperature constantly measurement of EtOH in the liquid phase is possible. The sensor may then be factory calibrated so that instead of the gas phase the concentration in the liquid can be determined.

Are there interferences with other gases?

Yes due to the NDIR measurement principle the BCP-EtOH shows interferences to other carbonhydrates.