Flowmasonic WUF 620 J Portable Ultrasonic Flow Meter

Introduction

Flowmasonic WUF 620J   portable transit-time ultrasonic flow meter utilizes transit-time principle. The 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. Small,  media, large three pairs of transducers meet different size pipeline measurement demand. It is
widely applied for mobile measuring, calibration, date comparison fields etc. as small size, easy to carry, simple installation.

Flowmasonic WUF 620J  Transit-time ultrasonic flow meter utilizes the difference of ultrasonic pulse forwarding and reversing flow rate to measure flow. Use a pair of transducers to transmit and receive signal alternately. Transducer signal travels faster downstream than upstream. Obtain transit-time △t by measuring signal travel time in downstream and upstream, the average flow velocity can be detained according to △t and velocity V. The volume flow Q can be calculated out of the flow velocity V and pipe profile S.

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

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.

Transit-time ultrasonic flow meter Flowmasonic WUF 620 J  utilizes the difference of ultrasonic signal forwarding and reversing flow rate to measure flow. Two transducers that function as both transmitter and receivers are clamped on outside of a closed pipe at a specific distance from each other. The transducer signal travels faster downstream than upstream. By measuring transit time △t , the average flow velocity can be detained. The volume flow Q can be calculated out of the flow velocity V and pipe profile S.

Different sizes of transducers satisfy different measuring demand. Plus, select thermal energy measuring function to achieve completely energy analysis. The Ultrasonic Portable flow meter WUF620J  is widely applied in processing monitoring, water balance test, district heating balance test, energy efficiency monitoring as easy installation and simple operation advantages.

Portable Ultrasonic flow Meter WUF 620 J Series Features

  • Small Size, Easy To Carry And Simple Installation
  • Built-in rechargeable lithium battery, full capacity battery can work for more than 50 hours
  • Four-line display, can display flow rate, instantaneous flow, cumulative flow and instrument running status on one screen
  • 4 Lines Display Velocity, Flow Rate, Volume And Meter Status
  • Clamp-on Mounted, Unnecessary Pipe Cutting Or Processing Interruption
  • Different types of sensors can be used to measure the flow of pipes with diameters ranging from DN20 to DN6000.
  • Fluid Temperature Range -40℃~260℃
  • Built-in Data Storage Is Optional
  • Built-in large-capacity data storage
  • Bi-directional Measurement, Flow Range From 0.01m/s To 12m/s
  • Selecting Temperature Sensor PT1000 To Achieve Thermal Energy Measurement Function

Application

This portable flow meter can be applied to various industrial and other sectors such as:

  • Water Utility
  • Water Conservancy & Resource
  • College & University
  • HVAC
  • Manufacturing
  • Draining Company
  •  Heating Supply Industry
  • Petrochemical Industry
  • Irrigation
  • Water Treatment Plan
Flowmasonic WUF 620 J
Flowmasonic WUF 620 J Ultrasonic Portable Flowmeter

Other Article: Flow Meter Ultrasonic : Jenis, Cara Kerja dan Aplikasi – Inaparts

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.
Instalasi Transducer WUF 620
Instalasi Transducer WUF 620

Measuring point selection

Ultrasonic flow meter is simplest and most convenient to install among all flow meters, just need to select one suitable measuring point and input the pipe parameters into flow meter, finally bundle transducer on the pipe. To keep measuring accuracy, users need to select uniform flow field when choosing measuring point, generally follow below principles:

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.
  • Keep the temperature of measuring point in workable range.
  • Keep far from electromagnetic interference source, shaking pipe, frequency conversion and ultrasonic radial area.
  • Measuring point must have necessary straight pipe, generally upstream is 10D(D is diameter of pipe, same as below) downstream is 5D. Specific installation of straight pipe please refer to below figure :
Posisi Instalasi Transducer wuf 620
Posisi Instalasi Transducer wuf 620
  • Pipe parameters entered must be RIGHT; Otherwise the flow meter will not work properly.
  • During the installation, apply enough couplants in order to stick the transducer onto the pipe wall.
  • While checking the signal strength and Q value, move the transducer slowly around the mounting site until the strongest signal and maximum Q value can be obtained.
  • Make sure that the larger the pipe diameter, the more the transducer should be moved. Check to be sure the mounting spacing is accordance with the display in Window M25 and the transducer is mounted at the pipe‟s centerline on the same diameter.
  • Pay special attention to those pipes that formed by steel rolls (pipe with seams), since such pipe is always irregular. If the signal strength is always displayed as 0.00, that means there is no signal detected.
  • Thus, it is necessary to check that the parameters (including all the pipe parameters) have been entered accurately. Check to be sure the transducer mounting method has been selected properly, the pipe is not worn-out, and the liner is not too thick.
  • Make sure there is fluid in the pipe or the transducer is not very close to a valve or elbow, and there are not too many air bubbles in the fluid, etc. With the exception of these reasons, if there is still no signal detected, the measurement site has to be changed.
  • Make sure that the flow meter is able to run properly with high reliability. The stronger the signal strength displayed, the higher the Q value reached. The longer the flow meter runs accurately, the higher the reliability of the flow rates displayed.
  • If there is interference from ambient electromagnetic waves or the signal detected is too poor, the flow value displayed is not reliable; consequently, the capability for reliable operation is reduced.
  • After the installation is complete, power on the instrument and check the result accordingly.

Pipe material

Window for selecting pipe material, familiar pipe materials include:
(The materials must be equable, compact and can transmit ultrasound)

  • .Carbon steel
  • PVC
  • Stainless steel
  • Aluminum
  • Cast iron
  • Asbestos
  • Ductile iron
  • Fiberglass
  • Copper
  • Others

Fluid Type

This ultrasonic flow meter WUF 620 CF can be used for the following types of homogeneous liquids :

  • Water
  • Sea Water
  • Diesel Oil
  • Kerosene
  • .Castor Oil
  •  Gasoline
  • Peanut Oil
  • Fuel oil
  • Gasoline #90
  • Crude Oil
  • Gasoline #93
  • Propane at -45℃
  • Alcohol
  • Butane(0℃)
  • Water(125℃)
  • Other

Flow unit selection

The Ultrasonic low meter WUF 620 CF has many options if you want to display various units of flow rate units. This window is used for selecting flow rate unit and time unit. Select flow unit:

  • Cubic Meters (m3)
  • Liters (l)
  • American Gallon (gal)
  • Imperial Gallon (igl)
  • Million Gallon (mgl)
  • Cubic Feet (cf)
  • American Barrels (bal)
  • Imperial Barrels (ib)
  • Oil Barrels (ob)
  • Select time unit:
    • /day (d)
    • /hour(h)
    • /minute (m)
    • /second (s)

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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