What is a differential pressure transmitter?

A differential pressure transmitter is a specific type of instrument that measures the pressure difference between two distinct points. This capability is crucial in various applications, such as monitoring flow rates, level measurements, and ensuring safe operating conditions within industrial processes.

By measuring the difference in pressure, these transmitters can provide important information about the flow of liquids or gases through pipes, as the pressure drop is often indicative of flow characteristics. The accurate data provided by a differential pressure transmitter allows for the optimization of system performance and helps prevent issues like blockages or overpressurization.

In contrast, other choices describe different types of instruments that serve distinct purposes. For example, measuring absolute pressure relates specifically to the pressure measurement relative to a vacuum, while flow regulation involves controlling flow rates without directly measuring pressure differences. Lastly, recording fluid density changes pertains to a different aspect of fluid mechanics unrelated to pressure differentials. Hence, the focus on the measurement of pressure differences confirms the function of the differential pressure transmitter.