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Application notes
The Difference in Pressure Transmitters and Transducers
The difference between pressure transmitters and transducers can depend upon the country providing the pressure sensor, the specific manufacturer, and even the specific industry using the pressure sensor. Many end users even use the terms “pressure transmitter” and “pressure transducer” interchangeably. So what is a pressure transducer, what is a pressure transmitter, and how do you know which one to use?
What Is a Pressure Transducer?
If a pressure sensor provides a millivolt (such as 2mV per V, 10mV per V or 0-100mV) or non-amplified output it is a pressure transducer. A pressure sensor with a voltage output (such as 0-5Vdc, 0-10Vdc or 1-5Vdc) is merely a pressure transducer with an amplified voltage output signal.
What Is a Pressure Transmitter?
A pressure transmitter although often confused with a pressure transducer, is slightly different in its output. A pressure sensor with a current loop output (such as 4-20mA 2-wire or 3-wire, or 3-wire 0-20 mA) is technically a pressure transmitter.