Product Manual

Wall Mounted Ultrasonic Flowmeter---User Manual

related to the velocity of the liquid in the pipe.

Where

! is the angle between the sound path and the flow direction

M is the number of times the sound traverses the flow

D is the pipe diameter

Tup is the time for the beam travelling from upstream the transducer to the downstream

transducer

Tdown is the time for the beam travelling from the downstream transducer to the upstream

transducer.

!"#"$%&"'()*+

The flow rate is then computed by combining the velocity information with pipe parameters and a

scale factor. The scale factor is normally determined by calibration in factory.

Three types of transducers can be used with transmitter, the clamp-on transducer, the insertion

wetted transducer(also called ’hot tap’) and the flow-cell inline transducer. All of them don’t block

the flow, thus, do not generate pressure drop.

1.4 Typical Applications

The flowmeter can be applied in a wide range of pipe flow measurements, Applicable liquids

include pure liquids as well as liquid with small quantity of tine particles.

Examples are:

!Water (hot water, chilled water, city water, sea water, waste water, ect.)

!Sewage with small particle content

!Oil (crude oil, lubricating oil, diesel oil, fuel oil,etc.

!Chemicals (alcohol, acids, etc.)

!Plant effluent

!Beverage, liquid food

!Ultra-pure liquids

!Solvents and other liquids

Applications sorted by industry/process

Water and waste water management;

Water and waste water treatment plants;