DE38_LCD Differential Pressure Transmitter

The DE38_LCD digital differential pressure transmitter / switch with colour change LCD is a transmitter with a diaphragm meas-uring device and is suitable for measuring over-pressure, under-pressure anddifferential pressure in neutral liquid and gaseous media. The switching device is based on a robust and durable diaphragm measuringunit. The pressures to be compared have an effect on a spring mounted meas-uring diaphragm that is in an idle state when the pressure is equalised. In case of a pressure difference, a force acts on the measuring diaphragm. The force acting on the measuring diaphragm causes it to be moved towards theside of the lower pressure until the spring forces compensate this force. The movement of the diaphragm is transferred via a tappet into the core of theinductive displacement sensor. The electronics integrated into the device evalu-ate this movement and transform it into signals on the display, switch contactsand optionally into an analogue output signal. The can be dampened, spread,inverted and transformed via a table function even if it is non-linear.