The differential amplifier will be housed in an aluminium enclosure. The differential amplifier has two input channels and each of these input channels can accept a 4..20mA signal coming from the pressure sensor. The output of the amplifier is the difference of the two input pressures (differential) and is provided as a 4..20mA signal. Both input and output signals are connected to the amplifier through 5 pin circular connectors of type KPSE06E14-5S and corresponding mating receptacle in the amplifier housing.

The Pressure sensor is made of piezoresistive element packaged in surface mount configuration and attached to a ceramic substrate, capable of an operating temperature (fluid temperature) of -40°C to +125°C. The sensing element associated with the amplifier and current converter, housed in a printed circuit board, will be embedded in a stainless steel housing. Packaged pressure sensor will work as a two wire sensor providing 4-20mA output corresponding to 0..4 bar pressure.