Dwyer Series PUF portable ultrasonic flowmeter kit

The Series PUF portable ultrasonic flowmeter kit utilises the transit-time difference for measuring flow rates in pipes non-invasively.

It is a compact and lightweight instrument incorporating the latest electronics and signal processing technologies, realising high performance and easy operation. The device is capable of 20 h continuous operation with its built-in battery.

The PUF comes with an IP67-rated carrying case with moulded foam inserts to hold and protect all equipment against dust and water. The screen offers easy-to-read text with a convenient backlight for visual comfort. The efficient layout of the function keys adds to the unit’s easy-to-use programming. It comes with RS232 and USB connections to allow for easy connection to any personal computer or printer.

To operate the product, place two sensors 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 flowmeter to be unaffected by pressure or temperature changes.

Product applications include treated water, river water, sea water, potable water, demineralised water, glycol/water mix, hydraulic systems and diesel oil. For the non-data logging version, see the Series PUB.

Originally published here.