Introduction
Principle & Structure
When the ultrasonic beam propagates in the liquid, the flow of the liquid will cause a small change in the propagation time, and the change of the propagation time is proportional to the flow rate of the liquid, and the relationship is in accordance with the following expression:
in
θ is the angle between the sound beam and the liquid flow direction
M is the number of straight-line propagation of the sound beam in the liquid
D is the inner diameter of the pipe
TUP is the propagation time of the sound beam in the positive direction
Tdown is the propagation time of the sound beam in the opposite direction
△T=Tup-Tdown
Features
● Two-channel high-precision design of shunt layer above DN50
● Protection class IP68
● Built-in quantitative controller, time-sharing accumulator
● Automatically start the controller at the set time to realize automatic timed quantitative water supply or quantitative irrigation.
● The time-sharing accumulation of traffic is carried out within the set time period, and the gradient rate has been realized.
● Calorie measurement
● Optional dual-channel PT1000 temperature measurement function, can realize heat measurement, suitable for air conditioning and refrigeration industry.
● Ultrasonic measurement, no rotating, no wearing parts
● Long-term guarantee of measurement accuracy, high reliability of the whole machine.
● Applicable to a variety of water quality, including water containing gravel and weeds.