SITRANS P MPS pressure transmitters are for measuring the liquid levels in wells, tanks, channels and dams.
SITRANS P MPS pressure transmitter, mode of operation and wiring diagram
On one side of the sensor, the diaphragm is exposed to the hydrostatic pressure which is proportional to the submersion depth. This pressure is compared with atmospheric pressure. Pressure compensation is carried out using the vent pipe in the connection cable.
The hydrostatic pressure of the liquid column acts on the sensor diaphragm, and transmits the pressure to the piezo-resistive bridge in the sensor.
The output voltage of the sensor is applied to the electronic circuit where it is converted into an output current of 4 to 20 mA.
The cable of the 7MF1570 transmitter must always be connected in the supplied junction box. The junction box has to be installed near the measuring point.
If the medium is anything other than water, it is also necessary to check compatibility with the specified materials of the transmitter.