Hand Held Ultrasonic Flow Meter

Feature
• The sensor being clamp-on type , there’s no
pressure loss. The sensor are easily mounted on
the suface of pipe without interrupting the flow
for installation or maintenance
• Advanced intelligent display , computation and
printing to suit user’s diversified requirement.
The flow is displayed in all pertinent
engineering units
It run out of regular power (110V / 220V),
built-in battery or DC power
• Using the most advanced direct-time-measuring
method, the unit offers a signal resolution of 0.2
ns. In addition, advanced data processing
functions
Description
When an ultrasonic wave travels in a liquid, the flow of the liquid will cause it’s speed to
change. When it travels in the flow direction, it’s speed increases and against it, it decreases. By
measuring the difference in travel time between both directions, one can measuring the flow speed. As
shown in Chart 1 , a pair of sensor are mounting configuration can be “Z” or “V” . The time-difference
of ultrasonic signals transmitted and received across upstream and downstream are calculated as
below;