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The Berghof easyH2O analyzer selectively determines the water content in a sample by means of thermo-coulometric determination. For this purpose the sample is heated up in a closed sample chamber and the evaporated water is conveyed to the sensor. Unlike the gravimetric moisture-measuring techniques, the result is not distorted by substances which evaporate out of the sample together with the water. The Berghof easyH2O delivers reproducible and exact results. It facilitates separate identification of free surface and capillary water as well as bonded water. Even strongly bonded water is released and quantified by means of temperature programs up to 400°. The results correspond to those of a Karl Fischer titration.

Chemical-free, selective water detection


Precise and environmentally friendly

Selective detection of water


The Berghof easyH2O combines thermal evaporation of water with a selective, electrochemical water sensor to create an innovative method of water analysis.


The water is evaporated out of the sample in a programmable oven and is fed to the sensor by means of a carrier gas flow stream. The water is slowly evaporated using the temperature profile of the heating program and the bonding forms of the water are differentiated.


The ambient air is sucked-in and dried to be used as the carrier gas. Therefore, no special chemicals or carrier gases are required to operate it. Nitrogen can be used as an alternative carrier gas, for example in order to prevent decomposition reactions with oxygen. The entire process is software-controlled and runs automatically.


Coulometric P2O5 sensor


The core of the device is the coulometric P2O5 sensor. No special or toxic chemicals are required to operate the phosphorus pent oxide measuring cell. This makes the system environmentally friendly and reduces the operating and disposal costs. Operating personnel require no special training on how to handle toxic chemicals.


Reliable results


The phosphorus pentoxide sensor is a standard method of detecting water in gases such as hydrogen, oxygen, nitrogen, argon and helium. This method was first described and standardized in 1987, in DIN 50450. The sensor principle is also applied to the determination of water in natural gas (ASTM D 5454 and ISO 11541:1997).

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Berghof Simply intelligently thought out With Berghof laboratory equipment clients are building on maxi- mum efficiency in four product groups: microwave and pressure digestion, acid purification, high and low pressure reactors and water determination. Leading-edge equipment designs heat and control reactions for perfect sample preparation in trace analysis and high- pressure synthesis. The result is products based on applications know-how that both Berghof and their clients wish for: products that are efficient, safe and durable.
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