Category Archives: Ultrasonic Flow Meters

Insertion Type Ultrasonic Flow Meter TUF2000

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Insertion Type Ultrasonic Flow Meter

What is Insertion Type Ultrasonic Flow Meter? Insertion Type Ultrasonic Flow Meter works on the principle of time difference. The transducers are inserted into the surface of the closed pipe.

The insertion type ultrasonic flowmeter is composed of a flowmeter host, a pair of insertion transducers and their accessories.

Insertion Type Ultrasonic Flow Mete can be a replacement for electromagnetic flowmeter on large diameter water flow pipes.

Get a Quote More Ultrasonic Flow Meters for Liquids

Features Of Insertion Type Ultrasonic Flow Meter

Insertion Type Ultrasonic Flow Meter is a type of ultrasonic flow. The same is the principle of using the time difference method. The form of the transducer has been changed, and the installation method has been changed to the insertion type. The debugging process and use effect are not much different from the clamp-on ultrasonic flowmeter.

Today we mainly introduce the advantages of Insertion Type Ultrasonic Flow Meter! It is divided into the following points:

  1. It can be installed online under pressure. During construction, the production pipeline does not need to be shut down, and there is no need to disconnect the pipe welding flange. Save the time and expense of using the unit;
  2. The product has low power consumption. The power supply is DC24V, and the power is 5W. It is safer to measure tap water, river water, sea water, etc.;
  3. The protection level of the converter is IP65. No screw design on the surface. The appearance is high-end and atmospheric. The service life of the button panel is more than 200,000 times;
  4. Sensor protection grade IP68. Can be immersed in water to work;
  5. 4~20mA current output. RS485 communication, standard MODBUS protocol. It can form a network by itself or connect to a GPRS module to realize remote data transmission;
  6. Independent menu operation, LCD backlight display. Data reading is clear at a glance;
  7. Daily, monthly and annual traffic accumulation functions;

Specifications of Insertion Type Ultrasonic Flow Meter

Item Performance and Parameter
Convertor Principle transit-time ultrasonic flowmeter
Accuracy Flow: over 1%-2%(battery-powered supply over ±2% )，Heat: over ±2%，Repeatability: over 0.2%
Display 2×20 character LCD with backlight, support the language of Chinese, English and Italy Convertor dimension:170*180*56cm
Operation Support 16 key light touch keyboard and the Simulation keyboard software
Signal Output 1 way 4~ 20mA output, electric resistance 0~ 1K，accuracy0. 1%
1 way OCT pulse output( Pulse width 6 ~ 1 0 0 0 ms，default is 2 0 0 ms)
1 way Relay output
Signal Input 3 way 4~ 20mA input, accuracy 0. 1%，acquisition signal such as temperature, press and liquid level
Connect the temperature transducer Pt100, can finish the heat/energy measurement
Data interface Insulate RS485 serial interface, upgrade the flow meter software by computer, support the MODBUS, METER-BUS etc.
Other Function Automatically remember the previous flow/energy data of 512 days,  128 months and 10 years
Automatically remember the previous flow/energy data of 512 days working condition and check it
Automatically remember the previous 32 times power on/off time and flow rate
Special Cable Twisted-pair cable, generally, the length under 50 meters; Select the RS485 communication. The transmission distance can over 1000m.
Pipe Condition Pipe Material Steel, Stainless steel, Cast iron, Copper, Cement pipe, PVC, Aluminum, Glass steel product, liner is allowed.
Pipe Diameter 32mm—6000mm
Straight length pipe Transducer installation should be satisfied: upstream10D, downstream 5D, 30D from the pump.
Measuring Medium Type of Liquid Water (hot water, chilled water, city water, sea water, waste water, etc.);  Sewage with small particle content; Oil (crude oil, lubricating oil, diesel oil, fuel oil, etc.);  Chemicals (alcohol, acids, etc.); Plant effluent; Beverage, liquid food; Ultra-pure liquids; Solvents and other liquids
Temperature Standard Transducer: -30–90℃; High-temperature transducer: -30–160℃
Turbidity No more than 10000ppm and less bubble
Flow rate 0–±12 m/s
Working Environment Temperature Main Unit: -20–60℃
Flow transducer: -40–160℃; 
Temperature transducer: according to the customer’s demands.
Humidity Main Unit: 85% RH; Flow Transducer: Ip67
Power Supply DC  24V or AC  85-264V
Power Consumption 1.5W

Read more about: What Is GPM In Flow Meter?

Optional Host

According to different installation condition, there are many models separated ultrasonic flowmeter for selection:

TUF-2000B Wall-mount-plastic
TUF-2000S Wall-mount-cast aluminum
TUF-2000U Panel-mount
TUF-2000M Modular host
TUF-2000D Explosion-proof
TUF-2000F2 Fixed Mounted

Optional transducer

Types Spec. Model Measurement Range Temperature Dimension
Insertion Standard TC-1 DN50~DN6000 -30~160℃ 190×80×55mm
Lengthen TC-2 DN80~DN6000 -30~160℃ 335×80×55mm

More about: Sewage Flow Meter Selection

Insertion Type Ultrasonic Flow Meter Applications

In terms of the measurement medium, the ultrasonic flowmeter can measure both conductive liquids, such as water, and non-conductive liquids, such as desalted water and pure water. There are also sewage, mud, ore pulp, paper pulp, chemical fiber pulp, corn syrup, fruit juice, alcohol, drugs, blood plasma and many other special media. As long as it is a single uniform and stable ultrasonic transmission liquid, it can be measured.

There are 5 conditions to use Insertion Type Ultrasonic Flow Meter:

  • When the pipe diameter is large, the pipe diameter is generally ≥DN80mm;
  • When there is a tight inner lining;
  • When the scale in the pipe is serious;
  • When the pipe is a poor conductor of ultrasonic;
  • When the external clamped ultrasonic flowmeter probe cannot reach the required signal strength or the measurement is unstable.

In the above cases, the use of Insertion Flow Meter can be considered.

insertion type ultrasonic flow meter installation

Insertion type ultrasonic flow meter installation needs to refer to the user manual we provide for step-by-step operation.

  1. Selection of installation method

    Insertion Type Ultrasonic Flow sensors are suitable for pipes above DN80mm, and are usually installed by Z method.
    Only when the installation space is not enough, the pipe smaller than DN200mm can be installed by V method. For pipes larger than DN200mm, parallel insertion sensors can be selected.

  2. Input the measurement parameters to get the installation distance;

    For parallel insertion sensors, the probe option is PI water meter probe: the included angle of the probe pipe is 0°; the length of the fluid in the static state is 0mm; the linear distance between the probes is optional between 200mm and 300mm, and finally determined by the actual installation results; single The contract delay time is 0μs.
    When using the Z method for standard Insertion sensors, the installation distance = inner diameter – 10mm.

  3. Mounting point positioning

    (1) Positioning of the Z method
    The positioning of the Z method must ensure the following two points:
    Installation distance = the vertical distance between two sensors along the pipe axis.
    Make sure that the two sensors are on the same axis (the connecting line of the two sensors passes through the axis).
    (2) Positioning of the V method
    The positioning of the V method must ensure the following two points:
    Installation distance = the vertical distance between two sensors along the pipe axis.
    Make sure both sensors are on the same level.
    (3) Positioning of parallel insertion sensors
    The positioning of the parallel insertion sensor should ensure the following two points:
    Installation distance = the vertical distance between two sensors along the pipe axis.
    Make sure that the two sensors are on the same level, and the insertion depth is 1/3 of the inner diameter of the pipe.

  4. Welded ball valve base;

    When the installation pipe is made of carbon steel, it can be directly welded and installed.
    For pipes that cannot be directly welded (such as cast iron, cement pipes, etc.), custom-made special pipe clamps (with sealing rubber pads) are required. The base of the ball valve has been welded on the pipe collar in advance, and the pipe collar is directly fastened to the pipe under test.
    Before welding, the surface of the pipeline near the welding spot must be cleaned. Be careful not to include air holes during welding to prevent water leakage or even breakage.

  5. Opening of pipeline under pressure

    Put the sealing gasket into the welded base, and then screw the special ball valve in, pay attention to compress the sealing gasket to prevent water leakage.
    Connect the sealing sheath of the hole opener with the external thread of the ball valve.
    After tightening, open the ball valve, push the drill pipe until it touches the outer wall of the pipe, connect the hand drill and the drill pipe and lock them, turn on the power, and start drilling.
    Keep the electric drill at a low speed during the drilling process, and the speed should not be too fast to avoid sticking the drill or even breaking the drill bit.
    After drilling through, pull out the drill pipe until the front end of the hole saw bit retreats behind the ball valve core. Close the ball valve and remove the hole opener.

  6. Calculation of insertion depth

    The Insertion sensor is precision-cast in a stainless steel mold, and the length of the sensor has been fixed before leaving the factory.
    Therefore, the insertion depth of the sensor probe rod is only related to the thickness of the pipe wall.
    The length of the probe rod of the standard insertion type sensor left outside the pipe is L=25mm-wall thickness, and the length of the probe rod of the extended insertion type sensor left outside the pipe is L=90mm-wall thickness.

  7. Probe Rod Installation

    Screw the sensor probe stem into the special ball valve. When screwing to the ball valve core, lightly tighten the lock nut to prevent water leakage. Open the ball valve and continue to screw in the sensor until the insertion depth of the sensor is L=25mm-wall thickness.

  8. Debugging of Insertion sensors

    When the waterproof joints of the two sensors are relatively inward, the emission angle of the sensor is correct.
    Then use the calculated insertion depth as a reference to rotate the probe slightly clockwise or counterclockwise to find the maximum value of signal strength and signal quality.
    Tighten the lock nut to prevent the probe stem from turning and water leakage.

  9. Check whether the installation is correct

    Check whether the sensor is installed correctly. If the installation requirements are met, the junction box can be potted with silica gel, and then the junction box sealing cover and the cable waterproof joint can be tightened to prevent water leakage.

Large Pipe Flow Meters

The cost of monitoring the flow in a large diameter pipe is very high. Today, modified intrusive and clip-on flowmeter technology can be used to measure flow in large pipelines. Using Insertion flow meters, it is possible to monitor the flow in pipes up to 6000 mm in diameter.

Of course, except for ultrasonic flow meters. There are other flow meters suitable for liquid flow in large-diameter pipes.

When measuring the liquid flow of large-diameter pipes, the following factors should be considered when selecting a flow meter:

  • The pressure loss should be as small as possible;
  • Due to the low flow rate (to reduce operating costs), the inner wall of the pipeline is easy to deposit dirt and sludge;
  • The measuring range of the flowmeter used should be particularly large to adapt to the disparity of browsing in different time periods;
  • The protection level of the flowmeter should also meet the requirements of the environment.

Extended reading: Magnetic Large Dia. Pipe Flow Meter

What is insertion type flow meter?

The insertion flow meter can provide a low-cost alternative to full-caliber flow equipment. Full-caliber flow equipment will take up a lot of space and require a lot of installation work. And there are special difficulties in service or calibration.

Drill a hole of appropriate size in the pipe wall. And a method of fixing the insertion gauge is adopted. This can be a saddle clamp, a welded threaded short tube, or a mating flange.

Then insert the Insertion sensor into the pipe to the depth recommended by the manufacturer. If on-site calibration is possible, the depth can be adjusted to improve accuracy.

Once the meter is fixed, it will only measure the speed at this time. And the volume flow cannot be calculated before considering the pipe diameter and the nature of the medium. Usually in the electronic flow computer/display unit.

More Ultrasonic Flow Measurement Applications and Markets

Ultrasonic Flow Detectors

Ultrasonic flow detectors are an important part of ultrasonic flow meters. Ultrasonic flow detectors are also called ultrasonic transducers. Ultrasonic…

If the insertion type of flowmeter is too troublesome to install. Then you can consider using a clamp-on ultrasonic flow meter. Simple and easy to use.

Sino-Inst, Manufacturer for Insertion Type Ultrasonic Flow Meter TUF2000. It can measure a single sound-conducting liquid medium of DN50 – 6000mm. It can measure even liquids such as water, seawater, oil, and slurry.

Sino-Inst’s Insertion Type Ultrasonic Flow Meter TUF2000, made in China, Having good Quality, With better price. Our flow measurement instruments are widely used in China, India, Pakistan, the US, and other countries.

Ultrasonic Clamp on Flow Meter

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Ultrasonic Clamp on Flow Meter is composed of an integrated host and external clamp on sensors. Clamp on Flow Sensors are available at room temperature and high temperature.

Clamp on flow meter (Model: 2000) is composed of an integrated host and ultrasonic clamp on sensor. Clamp on flow meter is widely used in online flow measurement of various liquids. Just stick the external clamp sensor on the pipe surface. Compared with the traditional flowmeter, it does not need to cut off the pipe and flow. The installation is convenient and quick, and the non-destructive installation is truly realized.

Clamp on Flow Meter Reference price: USD 470.00/pc

Sino-Inst offers a variety of  Ultrasonic flow meters for flow measurement. If you have any questions, please contact our sales engineers.

Request a Quote
Ultrasonic Flow Meters

Features Of Ultrasonic Clamp-on Flow Meter

  • High Accuracy measuring 
    • Linearity: better than 0.5%, Repeatability: better than 0.2%, Accuracy: better than ±1% 
  • Wide Measuring Range 
    • Several types transducer for selection, measuring pipe size from DN15mm to DN6000mm
  • English menu
    • Different version UFM can support English display, easy to operate
  • High Reliability
    • Adopt low voltage, multi-pulse technology to improve accuracy, useful life and reliability
  • Strong Anti-interference
    • Dual-balance signal differential receiver/driver circuit to avoid interference of converter, TV tower, high voltage line etc.
  • Powerful Recording Function
    • Automatically record the following data:
    • 1. The totalizer data of the last 512 days/128 months/5 years
    • 2. The time and corresponding flow meter of the last 64 times of power on and off events
    • 3. The working status of the last 32 days

Optional transducers for Ultrasonic Clamp on Flow Meter

Optional Host

According to different installation condition, there are many models separated ultrasonic flowmeter for selection:

Wall-mount-plastic
Wall-mount-cast aluminum
Panel-mount
Modular host
Explosion-proof
Fixed Mounted

Specifications of Ultrasonic Clamp on Flow Meter

Item Performance and Parameter
Convertor Principle transit-time ultrasonic flowmeter
Accuracy

Flow: over 1%-2%(battery-powered supply over ±2% )，Heat: over ±2%，Repeatability: over 0.2%
Display

2×20 character LCD with backlight, support the language of Chinese, English and Italy Convertor dimension:170*180*56cm
Operation Support 16 key light touch keyboard and the Simulation keyboard software
Signal Output

1 way 4~ 20mA output, electric resistance 0~ 1K，accuracy0. 1%

1 way OCT pulse output ( Pulse width 6 ~ 1 0 0 0 ms，default is 2 0 0 ms)
1 way Relay output
Signal Input

3 way 4~ 20mA input, accuracy 0. 1%，acquisition signal such as temperature, press and liquid level

Connect the temperature transducer Pt100, can finish the heat/energy measurement
Data interface

Insulate RS485 serial interface, upgrade the flow meter software by computer, support the MODBUS, METER-BUS etc.
Other Function Automatically remember the previous flow/energy data of 512 days,  128 months and 10 years
Automatically remember the previous flow/energy data of 512 days working condition and check it
Automatically remember the previous 32 times power on/off time and flow rate
Special Cable

Twisted-pair cable, generally, the length under 50 meters; Select the RS485 communication. The transmission distance can over 1000m.
Pipe Installation Condition Pipe Material

Steel, Stainless steel, Cast iron, Copper, Cement pipe, PVC, Aluminum, Glass steel product, liner is allowed.
Pipe Diameter 15mm—6000mm
Straight length pipe

Transducer installation should be satisfied: upstream10D, downstream 5D, 30D from the pump.
Measuring Medium Type of Liquid

Water (hot water, chilled water, city water, sea water, waste water, etc.);  Sewage with small particle content; Oil (crude oil, lubricating oil, diesel oil, fuel oil, etc.);  Chemicals (alcohol, acids, etc.); Plant effluent; Beverage, liquid food;  Ultra-pure liquids; Solvents and other liquids

More about: Sewage Flow Meter Selection
Temperature

Standard Transducer: -30–90℃; High-temperature transducer: -40–160℃
Turbidity No more than 10000ppm and less bubble
Flow rate 0–±12 m/s
Working Environment Temperature Main Unit: -20–60℃
Flow transducer: -40–160℃; 
Temperature transducer: according to the customer’s demands.
Humidity

Main Unit: 85% RH; Flow Transducer: Ip67
Power Supply DC  24V or AC  85-264V
Power Consumption 1.5W

Extended reading: Portable ultrasonic flow meter for water

Ultrasonic clamp on flow meter Pros and Cons

Advantages of Ultrasonic clamp on flow meter

  • The clamp on ultrasonic flowmeter is convenient to carry, easy to operate, intuitive to read data, and can memorize and save the read data;
  • The measurement liquid is relatively wide, including water, sea water, slurry or oil, acid and alkali and other homogeneous liquids;
  • Non-contact measurement method, light weight, small size;
  • The installation of the clamp-on ultrasonic flowmeter probe is simple, and probes of different sizes can detect pipes of different pipe diameters. Under the condition of ensuring accuracy, the clamp-on ultrasonic flowmeter can measure pipes with a minimum of DN15 and a maximum of DN3000. Pipeline
  • The external clamp ultrasonic flowmeter does not need to destroy the pipeline during the flow measurement process, and the probe can directly touch the straight pipe section without pressure loss, and the flow measurement can be performed on the installed pipe;
  • Suitable for measuring pipes of different materials. Common metal pipes (stainless steel, carbon steel, cast iron, etc.), plastic pipes, etc., and some pipes with better sound-transmitting materials.

Disadvantages of Ultrasonic clamp on flow meter

Because the temperature of the measured liquid is limited by the temperature resistance of the coupling material between the ultrasonic probe and the pipe, and the original data of the sound transmission velocity of the measured liquid at high temperature is incomplete. At present, the general ultrasonic flowmeter can only be used to measure the fluid below 200 ℃.

The measurement circuit of ultrasonic flowmeter is more complicated than that of general flowmeter. This is because the flow velocity of liquid in general industrial measurement is often a few meters per second, and the propagation speed of sound waves in the liquid is about 1500 m/s.

Therefore, the change of the measured fluid velocity (flow) has the greatest impact on the change of sound velocity, which is also on the order of 10-3. If the accuracy of measuring the flow velocity is required to be 1%, the accuracy of the measurement of the speed of sound needs to be 10-5~10-6 orders of magnitude. Therefore, a complete measurement circuit can be achieved.

This is the reason why ultrasonic flowmeters can only be applied in practice only under the premise of the rapid development of integrated circuit technology.

The measurement accuracy is not high enough. At present, the accuracy level of our ultrasonic flowmeters is generally level 1 or lower. Ultrasonic flow meters are greatly affected by external conditions. For example, high electric and magnetic fields near the measuring pipeline will affect the measurement of the ultrasonic flowmeter.

Read more about: Non-invasive Ultrasonic Tank Level Sensor Working Principle

Portable clamp on flow meter

Portable Ultrasonic Flow Meter

The portable ultrasonic flowmeter ( Model: 3000H) uses a non-invasive sensor to measure liquid flow. The installation process is extremely simple. There is no need to destroy the pipeline during the measurement process and no need to stop production. The sensor is not in contact with the measured medium. Battery powered, small size, light weight and easy to carry. Realize the real sense of mobile flow measurement, online detection, is a real sense of portable ultrasonic flowmeter.

Handheld Ultrasonic Flow Meter

Handheld Ultrasonic Flow Meter

Handheld Ultrasonic Flow Meter ( Model:2000H) has been successfully applied to measurement work in various industries. The measuring range is 20-6000mm (0.5-20 inches). A non-contact measurement method is adopted. Flexible operation and easy to carry. Conductive or non-conductive, corrosive or non-corrosive liquids can be measured. Various fluids: water, pure water, sewage, sea water, chemical fluids, river water, fuel Oil etc. can be measured.

Check more 1 Inch Flow Meters.

Clamp on Ultrasonic Flow Meter

Clamp on Ultrasonic Flow Meter

Clamp on Ultrasonic Flow Meter ( Model: 3000S) is composed of a host and an external clamp sensor. The flow measurement of various liquids can be completed by simply sticking the external clamp sensor on the surface of the pipeline. Compared with the traditional flowmeter, it does not need to cut off the pipe and flow, the installation is convenient and quick, and it truly realizes the lossless installation. Compared with the common TDC algorithm of other manufacturers, TGA measurement technology is an algorithm for measuring process time with higher speed and higher accuracy.

Clamp on liquid flow meter

The external clamp ultrasonic flowmeter can measure the flow rate of a single uniform liquid that can conduct ultrasonic waves, such as water, sea water, sewage, acid and alkali, alcohol, beer, various oils, etc.

Read more about Digital Beer Flow Meters for Sale|Brewery-Wine-Craft Beer Brewing Process management system 

Clamp on water flow meter

Clamp on water flow meter refers to the use of external clamp-on ultrasonic flow meters to measure water flow. Especially when other flow meters are not applicable.

For example, the flow measurement of ultrapure water equipment only uses an external clamp-type ultrasonic flowmeter.
why?

Ultra-pure water is non-conductive and has extremely high hygiene requirements, so the clamp-on ultrasonic flowmeter is the first choice. The general contact measurement and conductive medium measurement methods will be excluded. Let’s analyze it in detail below.

First, let’s take a look at the physical characteristics of pure water and ultrapure water. The filter cartridge of the ultra-clean filter device is made of pure polypropylene, and activated carbon is used to remove inorganic and organic trace pollution of ion exchange resin (nuclear grade) and adsorber resin. Dedicated ion exchange resin (nuclear grade) removes inorganic ions. After the adsorber resin removes dissolved organic matter. The pore size of the disinfection filter is 0.2um. The conductivity of pure water and ultrapure water obtained through such purification equipment: 0.055uS/cm. Bacteria content: 1CFU/ml, generally used in fields with high requirements such as biopharmaceuticals.

Secondly, we look at the application conditions of various flow meters.

In addition to measuring the volume flow of general conductive liquids, the electromagnetic flowmeter can also be used to measure the volume flow of strong corrosive liquids such as strong acids and alkalis and uniform liquid-solid two-phase suspension liquids such as mud, mineral pulp, and paper pulp. Since the conductivity of pure water is only 0.055, it cannot be measured.

Look at the turbine flowmeter again. Turbine flowmeter is a contact measurement, and pure water and ultra-pure water have particularly high requirements for materials, so the main material must be 316L when manufacturing, and the use of sanitary clamp joints will increase the production cost immediately.

Clamp on water flow meter is a non-contact meter. It can not only measure the flow of medium with large pipe diameter, but also can be used to measure the medium that is not easy to touch and observe. Its measurement accuracy is very high, and it is almost free from the interference of various parameters of the measured medium. In particular, it can solve the flow measurement problems of strong corrosive, non-conductive, radioactive and flammable and explosive media that other instruments cannot.

In summary, the ultrasonic flowmeter is the best choice for the flow measurement of the purified water equipment in the ultrapure water system.

FAQ

Strap on flow meter X3

The clamp-on flow meter is a flow meter with an external clamp-on flow sensor. Most flow meters are in-line pipe section mounts. The Clamp-on flow meter is a flow meter that only needs to be clamped on the outside of the pipe to measure the flow rate. This is important for many pipes that cannot be cut and bored.

The installation of the ultrasonic flow meter needs to be done according to the operating instructions of the ultrasonic. Because of different forms of ultrasonic flowmeter, the installation method is also different.

Sino-Inst supplies ultrasonic flow meters with an accuracy of mostly 1%. This accuracy can meet the needs of most users. Of course, there are other flowmeters with higher accuracy. For example, 0.5% electromagnetic flowmeter.

Users can choose according to your measurement requirements.

Mechanical Flow Meters

Selection Guide What is a mechanical flow meter? Mechanical flow meters are a type of flow…

Totalizer Flow Meters

Totalizer flow meter is also called Totalizing flow meter. It refers to the totalizing function of…

Sino-Inst, Manufacuturer for Ultrasonic Clamp on Flow Meters. It can measure a single sound-conducting liquid medium of DN 25—1200mm. It can measure even liquids such as water, sea water, oil, and slurry.

Sino-Inst’s Ultrasonic Clamp on Flow Meter, made in China, Having good Quality, With better price. Our flow measurement instruments are widely used in China, India, Pakistan, US, and other countries.

Clamp on Ultrasonic Flow Meter

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Clamp on Ultrasonic Flow Meter is a wall-mounted ultrasonic flow meter using TGA time difference technology. TGA is an algorithm for measuring process time with higher speed and accuracy.

Clamp on Ultrasonic Flow Meter ( Model: 3000S) is composed of a host and an external clamp sensor. The flow measurement of various liquids can be completed by simply sticking the external clamp sensor on the surface of the pipeline. Compared with the traditional flowmeter, it does not need to cut off the pipe and flow, the installation is convenient and quick, and it truly realizes the lossless installation. Compared with the common TDC algorithm of other manufacturers, TGA measurement technology is an algorithm for measuring process time with higher speed and higher accuracy.

Clamp on Ultrasonic Flow Meter Reference price: USD 870.00/pc

Sino-Inst offers a variety of  Ultrasonic flow meters for flow measurement. If you have any questions, please contact our sales engineers.

Request a Quote
Ultrasonic Flow Meters

Features of Clamp on Ultrasonic Flow Meter

Compared with other conventional flowmeters, the LRF-3000S ultrasonic flowmeter has the following characteristics in addition to the flexibility of on-site installation, high response speed and better measurement capability under low flow rates:

  1. Use an independent high-performance FPGA chip with 400,000 gate arrays. The measurement rate can be greater than 300 times per second. Compared with other brands, it has a great improvement in the resistance to air bubbles in the measurement pipe diameter. It can withstand continuous bubbles for up to 5 seconds.
  2. Increased signal strength. It has greater penetrating power to various scales, rust in the pipe and the inner lining of the pipe.
  3. 4-line LED display. Easy to operate.
  4. The sensor adopts our unique manufacturing process and matching technology. The zero point range can be controlled within 0.03m/s. The static time difference between each pair of sensors is less than 2 nanoseconds. This effectively guarantees the authenticity of the measured time difference.

Specifications of Clamp on Ultrasonic Flow Meter

Performance specification
Flow range 0 ~ ±12m /s (0~ 40ft /s)
Accuracy 1.0% of measured value
Repeatability 0.20%
Pipe Size DN25~DN1200mm
Function Specification
Outputs Analog output: 4~20mA, max load 750Ω.
Pulse output: 0~10KHz
Power Supply 10 ~ 36VDC or 10~24VAC
Keypad 16 keys(4X4) touch keys
Display 240*128, 4-line LCD display
Temperature Transmitter: -14℉~140℉(-20℃~60℃)
Transducer:-40℉~176℉(-40℃~80℃,TT01  ,Standard)
Transducer:-40℉~266℉(-40℃~130℃,TT03  ,High Temp)
Physical specification
Transmitter PC+ABS, IP65
Transducer Encapsulated design,IP68
Double-shielded transducer cable
Standard/maximum cable length:30ft/1000ft(9m/300m)
Packaging 20*22*23.5cm, 3.0kg

External clamp sensor:

Sensor potting
Room temperature external clamp sensor
High temperature external clamp sensor
  1. The signal cable and sensor are manufactured in one piece without wiring;
  2. Hidden tube tie design, more stable and beautiful after installation;
  3. A pair of sensors can achieve DN25-DN1200mm measurement to meet the use of a larger range of pipe diameters;
  4. Protection grade IP68, can work underwater without water ingress.

Clamp on Ultrasonic Flow Meter Working Principle

Clamp on Ultrasonic Flow Meter adopts the measurement principle of time difference method. It uses the ultrasonic wave emitted by the sensor to propagate in the flowing fluid. The sound wave propagation speed in the downstream direction will increase, and the backward direction will decrease. In the same propagation distance, there will be different transmission times. According to the difference between the transmission time and the measured The relationship between fluid velocity measures the fluid velocity.

The flow rate of the fluid is different in different positions in the tube. The flow rate in the center of the tube is faster than the flow rate near the wall of the tube. The flow velocity distribution of the fluid in the pipeline can be represented by the flow velocity cross-sectional distribution diagram.

By setting the flowmeter and considering the cross-sectional distribution of the flow velocity, the average flow velocity can be calculated. Then the volume flow of the fluid can be obtained according to the cross-sectional area of the pipe.

Notes:
V measure fluid velocity
M ultrasonic reflection times
D pipe diameter
θ The angle between the ultrasonic signal and the fluid
T up The time when the downstream sensor transmits the signal to the upstream
T down Time from upstream sensor to downstream
ΔT = T up – T down

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Clamp on water flow meter

Clamp on water flow meter means to measure the water flow rate by clamping the ultrasonic flowmeter sensor outside the pipe. The sensor is non-invasive. Of course, according to the actual requirements of the measurement, it can be fixed or portable.

So, why are we willing to use Clamp on ultrasonic flowmeter to measure the flow rate of water?

There are many types of flow meters for measuring water. Common ones are: V cone flowmeter, electromagnetic flowmeter, metal rotor flowmeter, vortex flowmeter, liquid turbine flowmeter, ultrasonic open channel flowmeter, ultrasonic flowmeter, etc.

There are many types of flow meters for measuring water. Common ones are: V cone flowmeter, electromagnetic flowmeter, metal rotor flowmeter, vortex flowmeter, liquid turbine flowmeter, ultrasonic open channel flowmeter, ultrasonic flowmeter, etc.

Advantages of Clamp on water flow meter for water measurement:

  1. External clamp installation, without damaging the pipeline. easy and convenient.
  2. It is convenient to measure ultra-small and ultra-large pipes. As small as Φ9.5. As large as DN6000.
  3. Electromagnetic flowmeter is used to measure the volume flow of conductive liquid with conductivity greater than 5μS/cm. Then other water flow with conductivity less than 5μS/cm can be measured with ultrasonic clamp on water flow meter. For example, ultrapure water.
  4. For pure water, drinking water, etc., it is necessary to keep clean and hygienic. If contact flow meters such as turbine flow meters and orifice flow meters are used, the material must be strictly required. At least 316SS material is required. Then the cost of the contact flowmeter will be very high.

Read more about: Non-invasive Ultrasonic Tank Level Sensor Working Principle

Portable clamp-on ultrasonic flow meter

Portable Ultrasonic Flow Meter

The portable ultrasonic flowmeter uses a non-invasive sensor to measure liquid flow. The installation process is extremely simple. There is no need to destroy the pipeline during the measurement process and no need to stop production. The sensor is not in contact with the measured medium. Battery powered, small size, light weight and easy to carry. Realize the real sense of mobile flow measurement, online detection, is a real sense of portable ultrasonic flowmeter.

Handheld Ultrasonic Flow Meter

Handheld Ultrasonic Flow Meter has been successfully applied to measurement work in various industries. The measuring range is 20-6000mm (0.5-20 inches). A non-contact measurement method is adopted. Flexible operation and easy to carry. Conductive or non-conductive, corrosive or non-corrosive liquids can be measured. Various fluids: water, pure water, sewage, sea water, chemical fluids, river water, fuel Oil etc. can be measured.

Sino-Inst, Manufacuturer for Clamp on Ultrasonic Flow Meter. It can measure a single sound-conducting liquid medium of DN 25—1200mm. It can measure even liquids such as water, sea water, oil, and slurry.

Sino-Inst’s Clamp on Ultrasonic Flow Meter, made in China, Having good Quality, With better price. Our flow measurement instruments are widely used in China, India, Pakistan, US, and other countries.

Ultrasonic Flow Meters

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The ultrasonic flow meter measures the liquid flow rate quickly and effectively. There are two types of ultrasonic flowmeter technology: Doppler frequency shift and transit time.

Transit time ultrasonic flow meter is most suitable for measuring the flow of cleaning liquid. Therefore, it is the most popular type of ultrasonic meter.

Doppler ultrasonic flow meter can measure the frequency difference of sound waves reflected from bubbles or particles in the airflow. It is suitable for aerated or dirty liquids.

Sino-Inst offers a variety of  Ultrasonic flow meters for flow measurement. If you have any questions, please contact our sales engineers.

Request a Quote
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Portable Doppler Flow Meter

Transit time Ultrasonic Flow Meter Working Principle

Transit time Ultrasonic Flow Meter adopts the measurement principle of time difference method. It uses the ultrasonic wave emitted by the sensor to propagate in the flowing fluid. The sound wave propagation speed in the downstream direction will increase, and the backward direction will decrease. In the same propagation distance, there will be different transmission times. According to the difference between the transmission time and the measured The relationship between fluid velocity measures the fluid velocity.

The flow rate of the fluid is different in different positions in the tube. The flow rate in the center of the tube is faster than the flow rate near the wall of the tube. The flow velocity distribution of the fluid in the pipeline can be represented by the flow velocity cross-sectional distribution diagram.

By setting the flowmeter and considering the cross-sectional distribution of the flow velocity, the average flow velocity can be calculated. Then the volume flow of the fluid can be obtained according to the cross-sectional area of the pipe.

Notes:
V measure fluid velocity
M ultrasonic reflection times
D pipe diameter
θ The angle between the ultrasonic signal and the fluid
T up The time when the downstream sensor transmits the signal to the upstream
T down Time from upstream sensor to downstream
ΔT = T up – T down

Guess You’ll Like: Ultrasonic flow meters types & technical guide

Ultrasonic Doppler Flow Meter Working Principle

Ultrasonic Doppler Flow Meter uses the physical principle of Doppler frequency shift to measure the water flow velocity.

Doppler effect (Doppler frequency shift) principle:
The sound waves emitted by one object are received and reflected by another object. If the object emitting the sound wave is moving relative to the receiving object. The frequency of the sound wave received by the receiving object will be different from the frequency of the emitted sound wave.

If the relative distance between two objects is reduced, the received frequency will increase.
If the relative distance between two objects is increased, the received frequency will decrease.

Such Doppler effects often occur in daily life. For example: when you hear the sirens (sounds) of an oncoming police car. The sound will appear higher in frequency. When the police car is far away from you, the sound it hears will become lower.

Through the difference between the frequency of transmitting ultrasonic waves and the frequency of receiving ultrasonic waves, the specific flow rate can be calculated. Then the water level is measured by the pressure sensor, and the water passing area is calculated from the water level and channel size.
Finally, the velocity and area are integrated to calculate the final instantaneous flow.

Calculation formula:
Velocity × water area × 3600 seconds = instantaneous flow rate (cubic meters/hour)

Ultrasonic Open channel flow meter working principle

The open channel flowmeter is based on the specific shape of the Parshall metering groove/weir plate metering groove. It guarantees a certain liquid level and knows a certain flow rate. The Parshall groove/weir plate metering groove is selected as the specific flow channel. The measurement accuracy is high. Easy to install.

The sensor measures the height of the liquid level, which is processed by 89C52 series single-chip microcomputers to obtain the instantaneous flow and cumulative flow values.

The flow can be expressed by the following formula:
　　Q=KHn
　　Q: Instantaneous flow rate (t/h)

K: Flow rate constant
　　H: height of liquid level n: nth power value

The instantaneous flow is processed by the cumulative accumulation to obtain the cumulative flow.

Read more about: Liquid Flow Meters Guide

Sino-Inst, Manufacturer for Ultrasonic Flow Meters. It can measure a single sound-conducting liquid medium of DN 25—150mm. It can measure even liquids such as water, sea water, oil, and slurry.

Sino-Inst’s Ultrasonic Flow Meter, made in China, Having good Quality, With better price. Our flow measurement instruments are widely used in China, India, Pakistan, US, and other countries.

Handheld Ultrasonic Flow Meter

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Handheld ultrasonic flow meter realizes the non-contact measurement of liquid flow. Also often referred to as Portable Clamp-On Ultrasonic Flow Meter for Liquids.

Handheld Ultrasonic Flow Meter ( Model:2000H) has been successfully applied to measurement work in various industries. The measuring range is 20-6000mm (0.5-20 inches). A non-contact measurement method is adopted. Flexible operation and easy to carry. Conductive or non-conductive, corrosive or non-corrosive liquids can be measured. Various fluids: water, pure water, sewage, sea water, chemical fluids, river water, fuel Oil etc. can be measured.

Handheld Ultrasonic Flow Meter Reference price: USD 470.00/pc

Sino-Inst offers a variety of  Ultrasonic flow meters for flow measurement. If you have any questions, please contact our sales engineers.

Request a Quote
Ultrasonic Flow Meters

Features of Handheld Ultrasonic Flow Meter

  • High precision measurement
    • Measurement accuracy is better than ±1%, linearity is 0.5%, repeatability is 0.2%
  • Small size and light weight
    • Volume: 210 × 90 × 30mm, the host weight is only 0.5kg
  • Non-contact measurement 
    • The magnetic flow ultrasonic sensor is adsorbed on the outer wall of the pipe to complete the flow measurement.
  • Large measuring range
    • Measurement of pipe flow from DN20 to DN2000 with different types of sensors
  • Charger
    • Built-in large-capacity nickel-metal hydride rechargeable battery to support continuous operation of the flowmeter for more than 12 hoursLarge screen
  • LCD display
    • It can display cumulative flow, instantaneous flow, flow rate, working status, etc. at the same time.
  • Built-in data logger
    • Built-in data logger with a space of 24K bytes and can store 2000 lines of measurement data.

Specifications of Handheld Ultrasonic Flow Meter

Items Performance and Parameter
Main Unit Principle transit-time ultrasonic flowmeter
Accuracy Accuracy :over 1%-2%; 
Repeatability: over 0.2%
Display 4 line x 16 character LCD with backlight
Dimension 200*93*33cm:  
 390g
Operation Support 16 key light touch keyboard 
and the Simulation keyboard software
Data interface Insulate RS232 serial interface, 
upgrade the flew meter software by computer, 
support the MODBUS, etc. 
Signal Output 1 way OCT output
Special Cable Twisted-pair cable ;
Select the RS232 communication.;
Generally, the standard is 5m*2, 
optional 10m*2 
Pipe Condition Pipe Material Steel, Stainless steel, Cast iron, Copper, 
Cement pipe, PVC, Aluminum, 
Glass, steel product, liner is allowed.
Pipe Diameter DN 15—6000mm
Straight length pipe Transducer installation should be satisfied: 
upstream10D, downstream 5D, 
30D from the pump.
Measuring Medium Type of Liquid Water ; Ultra-pure liquids; 
Solvents and other liquids 
Temperature Standard Transducer: -30–90℃; 
High-temperature transducer: -40–160℃
Turbidity under 10000ppm and less bubble 
Flow rate 0–±10m/s
Flow Direction Measuring two (plus-minis)
direction of flow rate 
Working Environment Temperature Main Unit: -20–60℃
Flow transducer: -40–160℃;  
Temperature transducer: according to the customer’s demands.
Humidity Main Unit: 85% RH
Power Supply AC  110V-240V  

Optional Transducer

Handheld Ultrasonic Flow Meter packaging 3.png

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Featured Clamp-on ultrasonic flow meters

Handheld Ultrasonic Flow Meter is a commonly used clamp-on ultrasonic flow meter.

Clamp-on ultrasonic flow meter mainly refers to the installation form of the ultrasonic sensor. The sensor clamp is fixed outside the pipe.

Clamp-on ultrasonic flow meters can be handheld, wall-mounted, and portable with printing functions depending on the host. You can select different hosts according to your measurement needs.

Portable Ultrasonic Flow Meter
Clamp on Ultrasonic Flow Meter
Ultrasonic Clamp on Flow Meter

Typical Applications of Handheld Ultrasonic Flow Meter

The handheld ultrasonic flow meter is mainly used for flow measurement of industrial pipeline fluids, and is widely used in environmental protection, petrochemical, metallurgy, paper-making, food, pharmaceutical and other industries.

The SI-2000H ultrasonic flow meter is ideal for flow testing during test and balance.

It is also useful for temporary flow monitoring, in existing systems to establish baseline demand data.

  • Water (hot water, cooling water, potable water, seawater, etc.)
  • Petroleum products
  • Chemicals, including alcohol, acids, etc
  • Beverage, food, and pharmaceutical processors
  • Secondary sewage, waste treatment, etc.
  • Power plants, Metallurgy, and miming applications
  • Pipeline leak detection, inspection, tracking, and collection

Of course, if you are allowed to install a pipe segment flowmeter in your measurement pipeline, you may consider the use of an electromagnetic flowmeter. Electromagnetic flowmeters will provide more accurate measurements.

For example, if you need to measure the wastewater flow of a 2-inch pipe, then you can refer to: Magnetic Flow Meters Guides.

Handheld Ultrasonic Flow Meter Installation

Handheld Clamp on Transducers

  • Install the clamp on transducer (with magnet) on the pipe, can finish the flow measurement. No pressure drop, no need cut off pipe.
  • Several types transducers for selection, measuring pipe size from DN25-DN6000mm.
  • Several types transducers for selection.

Clamp on Mounting Bracket Transducers

  • Bracket transdcuer can simplify the ultrasonic flow meter installation process. Shorten installation time and improve installation accuracy.
  • Install the clamp on bracket transducer （with magnet） on the pipe. Can finish the flow measurement. No pressure drop, no need cut off pipe.
  • Several types bracket transducers for selection, measuring pipe sizing from DN25-DN700mm.
  • Several types bracket transducers for selection, measuring temperature range -30℃ to 160℃.

Check more Choosing The Right 1 Inch Flow Meter.

Portable ultrasonic flow meter for water

Ultrasonic flowmeter is especially suitable for measuring large-diameter liquid pipelines because of its measuring principle. It has a large number of applications in urban water supply and sewage treatment industries. And the measurement results are very good.

Water is often used as circulating water in industrial production. That is, the water that can be recycled as the carrier of heat in the production process of the enterprise. The beginning is a circulating pool with a cooling system, and the end is the heat exchange equipment of the production workshop.

There are many types and quantities of heat exchange equipment in biochemical companies, so the circulating water pipelines are complicated. If a flow meter is installed on each circulating water pipeline, it will be a considerable expense.

Therefore, most production companies do not install flow meters for circulating water pipes in the initial stage of design to reduce investment costs. However, in order to grasp the operating efficiency of all heat exchange equipment in the production process, it is necessary to detect the flow rate of the circulation in the pipeline. .

An ultrasonic flowmeter can be used as a standard meter to transmit the value. It not only protects water resources rationally and scientifically, but also quantifies the paid use of water resources to a great extent. At the same time, it also protects the interests of both parties who use the water and reduces the cost of enterprise inspection. This makes periodic verification of large-caliber water flow meters a reality.

Handheld ultrasonic flow meter manual:

Handheld-Ultrasonic-Flow-MeterDownload

The measurement accuracy of the ultrasonic flowmeter is very high. Almost no interference from various parameters of the measured medium. In particular, it can solve the flow measurement problems of strong corrosive, non-conductive, radioactive and flammable and explosive media that other instruments cannot.
So what causes the inaccurate measurement of the ultrasonic flowmeter? The following are the reasons for the inaccurate measurement:
The influence of pipeline parameter equipment on the accuracy of ultrasonic flowmeter measurement.
The influence of upstream and downstream straight pipes on the accuracy of ultrasonic flowmeter measurement.
The influence of couplant on measurement accuracy.
The influence of the installation position of the ultrasonic flowmeter transducer on the measurement accuracy.

Read More about: Choose the most suitable Inline flow meter

Common types of ultrasonic flow meters
①According to the measurement principle. Ultrasonic flowmeters are now the most commonly used methods for measuring flow rates are the propagation velocity difference method ultrasonic flowmeter and the Doppler frequency shift method ultrasonic flowmeter. The propagation velocity difference method can be divided into three types: time difference method, phase difference method and acoustic cycle frequency difference.
②According to the installation method of the transducer. There are two types of ultrasonic flowmeters: fixed ultrasonic flowmeter and portable ultrasonic flowmeter.
The transducer installation methods of the fixed ultrasonic flowmeter can be divided into:
A tube-segment ultrasonic flowmeter integrating transducer and measuring tube;
The external clamp ultrasonic flowmeter with the transducer clamped on the outer wall of the measuring tube;
Plug-in ultrasonic flowmeter in which the transducer passes through the outer wall of the pipe and directly contacts the medium;
The transducer is attached to the inner wall of the large pipeline ultrasonic flowmeter.
③According to the channel of propagation. Ultrasonic flow meters can be divided into single-channel ultrasonic flow meters and multi-channel ultrasonic flow meters. Among them, multi-channel can be divided into two-channel ultrasonic flowmeter, ultrasonic flowmeter, four-channel and eight-channel ultrasonic flowmeter.
Extended Reading: Inline Ultrasonic Flow Meter

Ultrasonic flowmeters use sound waves to determine the velocity of a fluid flowing in a pipe.
At no flow conditions, the frequencies of an ultrasonic wave transmitted into a pipe, and its reflections from the fluid are the same.
Under flowing conditions, the frequency of the reflected wave is different, due to the Doppler effect.
When the fluid moves faster, the frequency shift increases linearly.
The transmitter processes signals from the transmitted wave, and its reflections to determine the flow rate.
Extended reading: Ultrasonic flow detectors types

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Frequently
Asked
Questions

Help Center

Portable Ultrasonic Flow Meter is a handheld ultrasonic flow meter. The clamp-on sensor is used to measure liquid flow in industrial pipelines.

The portable ultrasonic flowmeter uses a non-invasive sensor to measure liquid flow. The installation process is extremely simple. There is no need to destroy the pipeline during the measurement process and no need to stop production. The sensor is not in contact with the measured medium. Battery powered, small size, light weight and easy to carry. Realize the real sense of mobile flow measurement, online detection, is a real sense of portable ultrasonic flowmeter.

Generally speaking, mass flow meters are relatively accurate.
Of course, the accuracy of the flowmeter still depends on the site conditions.
If the measurement of temperature and pressure is not very difficult, the accuracy of the flowmeter must be relatively high.
In addition, to ensure the accuracy of the flowmeter, correct installation and use are also very important.

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Sino-Inst, Manufacuturer for Handheld Ultrasonic Flow Meters. It can measure a single sound-conducting liquid medium of DN 15—6000mm. It can measure even liquids such as water, sea water, oil, and slurry.

Sino-Inst’s Handheld Ultrasonic Flow Meters, made in China, Having good Quality, With better price. Our flow measurement instruments are widely used in China, India, Pakistan, US, and other countries.

Request a Quote

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