The DE85 is a differential pressure transmitter for industrial applications. It is suitable for measuring overpressure, under-pressure and differential pressure in neutral gaseous media. The device is based on a piezo-resistive sensor element that is suitable formeasuring overpressure, under-pressure and differential pressure. The pressures to be compared have a direct effect on a silicon membrane equipped with a measuring bridge. When the pressure is equal, the measuring membrane is in its idle state. If a pressure difference occurs, the membrane is deflected and a resistance change takes place on the attached measuring bridge. This change is evaluated by the device's electronics and transformed into the an analogue output signal with a rising or falling characteristic curve. The output signal can also be dampened and square rooted. Alternatively, the device is available as a 2-wire or Modbus RTU variant. All versions can be equipped with a full-graphic LC display.
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