DE80 Differential Pressure Transmitter

The DE80 is a multi-functional differential pressure transmitter with an optionalchangeover contact. It is suitable for measuring overpressure, under-pressureand differential pressure in neutral gaseous media. The device is based on a piezo-resistive sensor element that is suitable for measuring 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 an analogue output signal. Optionally, the device can be delivered with a full-graphic LC display and a changeover contact. In addition, the device is available as a 2-wire or Modbus RTU variant.