Dwyer Instruments Series UFB Ultrasonic Flow Meter

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The Series UFB Ultrasonic Flow Meter Set uses the transit-time difference for measuring flow rates in pipes non-invasively. The permanent model allows the user to mount the converter on a surface or pipe. The easy-to-use, compact and lightweight design is intended for mechanical devices using homogeneous liquids that contain no air pockets.

The series comes with a sturdy IP65 rating, protecting it from dust and direct water contact. It has 4 to 20 mA and pulse output capabilities.

Two sensors are placed on the exterior of the pipe; each transmits an ultrasonic pulse through the pipe and fluid to the other. The velocity of the liquid flowing through the pipes causes the pulse to accelerate or decelerate. The difference in the transit times of the two pulses is used to calculate the flow rate. The use of transit time allows the flow meter to be unaffected by pressure or temperature changes.

Applications include: treated water; river water; sea water; potable water; demineralised water; glycol/water mix; hydraulic system; diesel oil.