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Temperature measuring device WGM 07
concentrationrelative humiditymass

temperature measuring device
temperature measuring device
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Measured value
temperature, concentration, relative humidity
process, water


Nominal pressure 40 bar Analog output ​4 … ​20 mA Water activity aw 0 ... 0,9: ±0,02 Water activity aw 0,9 ... 1: ±0,03 Features Permanent measurement of the humidity and temperature Fast display of changes High measurement accuracy and measurement stability Simple connection to an external control system With ball valve installation, switching off the process or draining the oil is not necessary Product description The online water content measurement devices allow the water activity in hydraulic and lubricating oils to be monitored online quickly and reliably. Function The WGM07 oil humidity and temperature measurement encoder allows fast and reliable measurement of the humidity content in oils. The devices are used to monitor humidity in real time and to control dryers and oil conditioners so that they are only activated as needed. Efficient monitoring helps to save oil and is good for the environment. With the WGM07, the humidity content in oil can be monitored simply and cost-effectively. Measurement of the water activity The WGM07 measures the oil humidity in the form of water activity (aw) and also the oil temperature (T). The water activity is a direct indicator of whether there is a risk of water separation as a phase. The measurement is carried out independently of the type, age and temperature of the oil. Calculation of the water content The WGM07 indicates the water activity (aw) and oil temperature (T). It is possible to calculate the average mass concentration of water in oil in ppm using this information. For this purpose, only the oil-specific conversion coefficients have to be determined.


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