The DE25 is a differential pressure transmitter for measuring over-pressure, under-pressure and differential pressure in neutral, non-aggressive gaseous media. Typical applications are air conditioning and ventilation technology, filter equipment, construction and mechanical engineering. The basis of this transmitter is a piezo-resistive sensor element. The pressure that is to be measured acts directly onto a silicon diaphragm equipped with piezo-resistive resistors. The active pressure generates changes in resistance that are evaluated by the device's electronics and transformed into an analogue signal. The output signal is usually available as a current or voltage signal.
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