1.CE&ATEX certificate
2.Very low flow measurement:0.05m/s
3.Hot-tapped installation
4.High temp:250
5.Dirty liquids measure
Port: Shanghai
Minimum Order Quantity: 1 Set/Sets
Supply Ability: 500 Set/Sets per Month
Payment Terms: T/T
Contact SupplierPackaging Detail: Carton as per export standard
Delivery Detail: Within 7 workdays
Principle of Measurement
The Doppler ultrasonic flowmeters is designed to measure volumetric flow of liquid within closed conduit, the pipe line must be filled full of liquids, there must be Ta certain amount ofT air bubbles or suspended solids in liquid.
Transducers are clamp-on or hot-tapped probe types, user don’t need to shut down the pipe flow when install the clamp-on transducers.
The flow meter operates by transmitting an ultrasonic sound from its transmitting transducer, the sound will be reflected by useful sonic reflectors suspended within the liquid and recorded by the receiving transducer. If the sonic reflectors are moving within the sound transmission path, sound waves will be reflected at a frequency shifted (Doppler frequency) from the transmitted frequency. The shift in frequency will be directly related to the speed of the moving particle or bubble. This shift in frequency is interpreted by the instrument and converted to various user defined measuring units.
There must be some particles large enough to cause longitudinal reflection – particles larger than 100 micron.
When install the transducers, the installation location must have enough straight pipe length upstream and downstream. Commonly, the upstream needs 10D and downstream needs 5D straight pipe length, where D is pipe diameter.
Doppler Ultrasonic Flow meter’s Features
DYNAMETERS Doppler Ultrasonic Flow meter’s Advantages
CE Certificate of the Doppler ultrasonic flow meter