Pressure transmitter-what are the characteristics of it?

Features of pressure transmitters

The pressure transmitter amplifies the weak electrical signal collected by the pressure sensor in order to transfer or start the control element. Or a signal source that converts the non electric quantity input by the sensor into an electrical signal and amplifies it at the same time for remote measurement and control. 

Analog quantity can also be converted into digital quantity as required. Pressure sensor and pressure transmitter together constitute the monitoring signal source of automatic control. Different physical quantities require different pressure sensors and corresponding pressure transmitters. 

There is also a transmitter that does not convert physical quantities into electrical signals, For example, the "differential pressure transmitter" of a boiler water level gauge is an instrument that sends the condensate of the lower water and the upper steam in the liquid level sensor to both sides of the bellows of the transmitter through the instrument pipe, drives the mechanical amplification device with the differential pressure on both sides of the bellows, and uses the pointer to indicate the water level. 

Of course, it can also be called a transmitter to convert the electrical analog quantity into digital quantity.