Ultrasonic Flow Measurement
The UF811CO flow meter measures the velocity of a fluid with ultrasound to calculate average velocity in a channel. This is done by averaging the difference in measured transit time between the pulses of ultrasound travelling with and against the direction of the flow.

Means of operation
The UF811CO uses inline wetted probes, fixed to your channel walls and connected back to the UF811CO. The probe pairs are normally stacked at different elevations of the pipe to detect a better average of the channel velocity.