Chemical-free water determination

The Berghof easyH2O combines thermal evaporation of water with a selective, electrochemical water sensor to a new and innovative method of water analysis. Unlike the gravimetric moisture-measuring techniques, the result is not distorted by substances which evaporate out of the sample together with the water. It therefore delivers reproducible, accurate results and facilitates separate identification of free surface and capillary wate ras well as bonded water.

The water is evaporated out of the sample in a programmable oven and is fed to the sensor by a carrier gas. The coulometric sensor absorbs water in it hygroscopic phosphorous pentoxide coating. The water is electrolysed immediately and the required electrical charge is proportional to the quantity of water which is determined. Thus the sensor regenerates itself and is always ready to use.

Operation is extremely simple. No special or toxic chemicals are required to operate the system. The operator profits by reduced operating and disposal costs as well as reduced blank value input regarding chemicals.

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