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Ultrasonic Water Flow Meter

  • Accuracy:Better than ±1%
  • Repeatability:Better than 0.2%
  • Size:DN15-DN6000
  • Medium Temperature:-30℃~160℃
  • Velocity:0~ ±10 m/s
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Ultrasonic water flow meter is designed to measure the fluid velocity of liquid within a closed conduit. The transducers are a non-contacting, clamp-on type, which will provide benefits of non- fouling operation and easy installation.
Transit time ultrasonic flow meter send and receive ultrasonic waves between transducers in both the upstream and downstream directions in the pipe. At no flow conditions, it takes the same time to travel upstream and downstream between the transducers. Under flowing conditions, the upstream wave will travel slower and take more time than the (faster) downstream wave. When the fluid moves faster, the difference between the upstream and downstream times increases. The transmitter processes upstream and downstream times to determine the flow rate.

• 0.5% of linearity
• 0.2% of repeatability
• High Anti-interference
• Powerful Memory Function
• Support Temperature Sensor
• Support SD card memory



V-method Installation

V-method installation is the moswidely used mode for daily measurement with pipe inner diameters ranging from 15 millimeter to 200 millimeter. It is also called reflective mode or method.

v type


Z-method Installation

Z-method is commonly used when the pipe diameter is between 300 millimeters and 500 millimeters.

z type

W-method Installation

W-method is usually used on plastic pipes with a diameter from 15 millimeters to 100 millimeters

w type




Item Parameter
Transmitter Principle Ultrasonic transit-time principle, four-byte IEEE754 floating-point arithmetic
Accuracy Better than ±1%
Display LCD display with Chinese, English Display
Output One 4-20mA Current output, Impedance0-1K,Accuracy 0.1%
One OCT Pulse output(Width 6-1000ms,Default 200ms)
One relays output
Input Three 4-20mA Current input,accuracy 0.1%,can collect temperature,
pressure,level signals etc.
Connect with three-wire PT100 Plastnium resistance to measure heat flow.
Data Interface Isolated RS485 interface, can upgrade flowmeter through PC,support modbus
Special Cable Twisted-pair, ≤ 50m
Pipe  Material Steel,Stainless steel,Cast iron,copper,PVC,aluminium,FRP etc.(liner allowed)
Internal Diameter  15~6000mm
Straight Length Upstream 10D,downstream 5D,30D away from the pump outlet(D for diameter)
Medium Fluid Water,sea water,acid liquid,beer,alcohol,oil and 
any other liquid that can spread sonic
Temperature -40~160 
Turbidity 10000 ppm and with little bubbles
Velocity 0~ ±12 m/s
Temperature Transmitter:-20~60 ;Transducer:-40~160 
Humidity Transmitter:85%RH;transmitter protection grade:IP68;Water depth<2m (glued)
Power Supply DC8-36V or AC85-264V
Consumption 1.5W
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