FUNCTION
The ultrasonic principle is used in measuring the flow. Two ultrasonic transducers functioning as both transmitter and receiver are positioned opposite each other at the inlet and outlet of the flowmeter.

Ultrasonic signals are transmitted between both transducers. One signal travels in the same direction as the water flow, the other travels against the flow.

Measurement is performed by determining the time the ultrasonic signal takes to travel with and against the flow.