Electrometrical control relays are used in all of the following functions except _____.

Electrometrical control relays are primarily designed for controlling various electrical operations and managing signals in response to certain conditions. They excel in tasks like high-speed power switching, where they can rapidly turn circuits on and off in response to electrical signals. This capability makes them suitable for managing power loads and controlling devices, which is crucial in industrial applications.

Temperature sensing, pressure regulation, and flow control typically involve more specialized sensors and devices designed to monitor physical parameters and provide feedback for control processes. While relays may be used in conjunction with temperature, pressure, and flow sensors to manage the output or control actions based on the data received, the primary function of electrometrical control relays is not to directly sense these conditions.

Specifically, temperature sensing refers to the ability to measure thermal conditions, which generally requires a sensor like a thermocouple or RTD rather than a relay. Therefore, the statement that electrometrical control relays are used for temperature sensing does not hold true within the context of their primary operational functions.