Digital differential pressure transmitter DE39_LED with internal pressure sensors. Display and switching device for differential pres-sure of gaseous and fluid media. The device is based on an electronic evaluation cir-cuit that analyses the measuring signals of two integrated ceramic pressure transmitters. The signals of the pressure transmitter can be displayed sepa-rately for checking purposes. The integrated pressure sensors work with ceramic pressure measuring cells. The signals are digital-ised and made available to the analysis unit for further processing. The main task is to calculate the differential pressure that can be displayed and analysed. The anal-ysis allows the configuration of two independent switching points and the provision of an output signal that is proportional to the differential pressure. The rated pressures of the integrated sensors and the differential pressure measuring range are set permanently ex-works and shown on the type plate.
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