Pressure Transmitter

Pressure transmitters measure the pressure of liquids, gases or steam through a sensing element. Applied pressure deflects an isolation diaphragm and transfers force to the internal sensor. In SUPMEA models such as the SUP-P300, a piezoresistive diffused-silicon sensor converts this deformation into an electrical signal proportional to the applied pressure.

The transmitter then amplifies, linearizes and compensates the signal to improve stability over the temperature range. The processed value can be transmitted as a standard 4–20 mA, voltage or RS485 signal for connection to PLCs, controllers and monitoring systems. Depending on the model, gauge, absolute or sealed pressure can be measured. Stainless-steel diaphragms and compact housings support reliable use in industrial applications.