The DE23 is a differential pressure transmitter for measuring very small overpressure, under-pressure and differential pressure in neutral, non-corrosive gaseous media.A centre-mounted tappet transfers the motion of the diaphragm system to the core of an inductive displacement transducer. Typical applications are filter equipment, precision air channel measurements, low-pressure measurement for building automation, clean room pressure equalisation, burner under-pressure measurement, furnace-circulating air controls. The basis of this transmitter is a sensor element with a produced differential condenser made with silicon-glass technology. The active pressure generates changes in capacity that is evaluated by the device's electronics and transformed into an analogue signal 4 … 20 mA or 0 … 10 V. The measuring channel are identical in the 2-channel models.
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