Flowmasonic WUF 620 J Portable Ultrasonic Flow Meter
Flowmasonic WUF 620 J Portable Ultrasonic Flow Meter

Flowma Flowmasonic WUF 620 J Portable Ultrasonic Flow Meter

2 minutes, 15 seconds Read

Flowmasonic WUF 620 J Series Flowma Portable clamp-on transit-time ultrasonic flow meter utilizes transit-time principle. The Flowmasonic transducer is mounted outside surface of the pipe without requirements of flow stop or pipe cutting. It’s very simple, convenient for installation, calibration and maintenance.

Different sizes of transducers satisfy different measuring demand. Plus, select thermal energy measuring function to achieve completely energy analysis. It is widely applied in processing monitoring, water balance test, district heating balance test, energy efficiency monitoring as easy installation and simple operation advantages.

Flowmasonic  WUF 620 J Series Features

Built-in Chargeable Lithium Battery Can Continuously Work 50 Hours

  • 4 Lines Display Velocity, Flow Rate, Volume And Meter Status
  • Clamp-on Mounted, Unnecessary Pipe Cutting Or Processing Interruption
  • Fluid Temperature Range -40℃~260℃
  • Built-in Data Storage Is Optional
  • Selecting Temperature Sensor PT1000 To Achieve Thermal Energy Measurement Function
  • Suitable For DN20-DN6000 Flow Measurement By Selecting Different Size Transducers
  • Bi-directional Measurement, Flow Range From 0.01m/s To 12m/s
Flowmasonic WUF 620 J Portable Ultrasonic Flow Meter
Flowmasonic WUF 620 J Portable Ultrasonic Flow Meter


When selecting a measurement site, it is important to select an area where the fluid flow profile is fully developed to guarantee a highly accurate measurement. Use the following guidelines to select a proper installation site:

  • Choose a section of pipe that is always full of liquid, such as a vertical pipe with flow in the upward direction or a full horizontal pipe.
  • Ensure enough straight pipe length at least equal to the figure shown below for the upstream and downstream transducers installation.
  • Ensure that the pipe surface temperature at the measuring point is within the transducer temperature limits
  • .Consider the inside condition of the pipe carefully. If possible, select a section of pipe where the inside is free of excessive corrosion or scaling.

Performance Index

Measuring Principle Transit-time
Velocity 0.01 – 12 m/s, Bi-directional Measurement
Resolution  0.25mm/s
Repeatability  0.1%
Accuracy ±1.0% of Reading
Response Time 0.5s
Sensitivity 0.003m/s
Damping 0-99s(settable by user )
Suitable Fluid Clean or tiny amounts of solids, air bubbles liquid , Turbidity <10000 ppm
Power Supply AC: 85-265V DC:12- 36V/500mA
Installation Portable
Protection Class IP66
Operating Temperature -40℃ to +75℃
Measuring Unit meter,ft,m³,liter,ft³,gallon,barrel etc.
Communication Output 4~20mA, OCT, Relay, RS485 (Modbus-RUT), Data Logger ,GPRS
Energy Unit Unit : GJ,Opt: KWh
Security Keypad Lockout, System Lockout
Size 270*246*175mm
WB4:C22eight 3 kg

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