What is the function of a pressure transmitter?

The function of a pressure transmitter is to convert pressure measurements into an electrical signal. This process is essential in various industrial applications, as it allows for real-time monitoring and control of pressure levels in systems. The electrical signal produced by the transmitter is typically a standardized output (such as 4-20 mA or 0-10 V), which can be easily integrated into control systems and monitoring equipment. This capability makes pressure transmitters crucial for ensuring that processes operate within safe and optimal pressure ranges, thus maintaining system integrity and performance.

The other options describe functions that are not associated with a pressure transmitter. For example, measuring temperature and humidity pertains to temperature sensors and hygrometers, while storing excess pressure relates to pressure relief devices or accumulators. Filtering impurities in fluids is a function associated with filter systems, not pressure measurement.