Differential pressure switch DE90

The DE90 is a differential pressure transmitter with additional switch outputs. Itis suitable for measuring overpressure, under-pressure and differential pressurein 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 directly act on a silicon diaphragm equipped with a meas-uring bridge.When the pressure is equal, the measuring membrane is in rest position. If apressure difference occurs, the membrane is deflected, causing a change inresistance of the applied measuring bridge.

This change is evaluated by theelectronics integrated in the instrument and converted into display and up tofour switching contacts.The device can optionally be equipped with up to two analog outputs. The out-put signal can be attenuated, spread, inverted and also non-linearly transformedvia a table function.

Características

• Rango de medida - 25 Pa … 25 kPa
• Unidad de pressión seleccionable
• No necesita mantenimiento
• posibilidad de acondicionar la señal de salida desde 3 a 30 puntos
• Señal de salida 0(4)-20 mA/ 0-10 V

Aplicaciones

• Sistemas de ventilación.
• Sistemas medioambientales.
• Sistemas de control climático.
• Salas limpias