Portable Doppler Ultrasonic Flow Meter-More Powerful

Portable Doppler Ultrasonic Flow Meter-More Powerful

The Portable Doppler Ultrasonic Flow Meter is specially designed for measuring the flow of media such as liquids and slurries containing certain solid impurities and bubbles in closed pipes. is a durable, non-contact ultrasonic flow meter designed to measure wastewater.

The sensor is installed with an external clamp, and there is no need to cut off the pipe or stop the flow during installation. There are no problems such as media leakage and pressure loss. It is widely used in mobile measurement, metrological testing, data comparison and other fields.

Features of Portable Doppler Ultrasonic Flow Meter

  • Rechargeable lithium battery, can work continuously for 50 hours.
  • Non-contact measurement, no need to break pipe or stop flow during installation.
  • Measurement accuracy 0.5-2%FS.
  • Adaptive signal gain adjustment.
  • Can resist frequency converter interference.
  • The operation is simple, just input the inner diameter to achieve flow measurement.
  • Instantaneous flow and accumulated flow pulse output and flow alarm output.
  • 2-line 8-digit LCD can display instantaneous flow, accumulated flow, flow rate and other information.


HostDisplayUsing menu prompts, it can display information such as instantaneous flow, cumulative flow, flow rate, etc.
Chinese/English display: 5 lines × 10 Chinese characters (5 lines × 20 characters), with a display window with the largest amount of information among similar instruments
Signal outputCurrent signal: 4-20mA, with load capacity 0~600Ω
Data interface: standard RS-232C
Data recording and playback functionBuilt-in data logging function, can store 65072 data records
Data playback function
Special software for Windows style graphical interface, which can download data to the computer
It can display the instantaneous flow-time curve waveform, providing a powerful tool for managers to analyze data.
It has the function of annual, monthly and daily traffic accumulation, and can record the accumulated traffic in the previous 5 years.
SensorInstallation methodClamp-on type
cable length6m
sensorStandard sensor: -35℃-85℃, can measure temperature up to 120℃ in a short time;
High temperature sensor: -35℃~200℃, can measure temperatures up to 250℃ in a short time.
Pipeline conditionpipesCarbon steel, stainless steel, copper, PVC, aluminum, hard metal, plastic, etc.
Straight pipe sectionThe sensor installation point is best to meet: upstream ≥ 10D, downstream ≥ 5D, distance from the pump outlet ≥ 30D (D refers to the pipe diameter)
Pipe diameter25mm~4000mm
Measuring range0.05 m/s ~12.0m/s, Bi-directional measurement
Power supplyBatteryRechargeable nickel-metal hydride battery, 8 hours of charging, 50 hours of working time, with remaining power indicator function
ChargeAdopt intelligent charging management method, AC220V (can work in AC85~265V, suitable for occasions with harsh power supply voltage)
Protection levelIP65, ABS waterproof chassis 
Housing size350×250×155(mm) 

Application of Portable Doppler Ultrasonic Flow Meter

Application of Portable Doppler Ultrasonic Flow Meter

Portable Doppler ultrasonic flow meters are mainly used in environmental testing of urban sewage treatment plants, drainage pumping stations, and circulating water, pulp, ore pulp, mud, acid and alkali liquids, etc. in mining, oil fields, metallurgy, chemicals, refining, papermaking, food and other industries. Flow measurement of chemical raw materials, seawater, urban drainage, industrial wastewater, domestic sewage, oil-water mixture, etc.

Portable Doppler ultrasonic flowmeter is suitable for hard pipes such as steel and hard plastic pipes. It can measure two-phase liquids containing suspended solid particles or bubbles in tubes of various diameters and wall thicknesses.

Industrial field: In industry, Doppler flow meters are widely used to measure the flow rate of gases, liquids or solid particles. It can help monitor and control industrial processes, ensure proper operation of equipment, and provide data for engineers to optimize and improve.

Environmental field: Doppler flowmeters can also be used for environmental monitoring, such as measuring the speed and direction of water flow in rivers, lakes or oceans, thus contributing to water resources management and environmental protection.

Wastewater treatment and water supply systems: Doppler flowmeters can measure wastewater flow in wastewater treatment plants and are used to monitor and control water quality, flow rates, and water supply system operations.

Doppler flowmeters have important applications and roles in industry, environment and water treatment. Provides accurate and reliable data for flow rate measurement and monitoring.

What is the difference between ultrasonic and Doppler flow meter?

At present, there are two types of ultrasonic flow meters we see, one is Doppler ultrasonic flow meter, and the other is time-difference ultrasonic flow meter. So what is the difference between these two types of ultrasonic flowmeters?

The first type: Doppler ultrasonic flow meter
Doppler ultrasonic flowmeter uses the phase difference method to measure flow velocity. That is, sound waves of a certain known frequency move in the fluid. Since the liquid itself has a moving speed, the frequency or phase of the ultrasonic wave between the two receivers (or transmitters) changes relative to each other. By measuring this relative change, the liquid velocity can be obtained;

Second type: Time difference ultrasonic flowmeter
The time-difference ultrasonic flowmeter uses the time-difference method to measure flow rate. That is, the propagation time of a sound wave at a certain speed between two receivers (or transmitters) changes due to fluid flow. By measuring this relative change, the fluid flow rate can be obtained.

More Featured Ultrasonic Flow Meters

Portable Doppler Ultrasonic Flow Meter is a high-precision, wide-range ultrasonic flow meter. The entire device is based on the “Doppler Effect”. The Portable Doppler Ultrasonic Flow Meter has no rotating parts such as propellers and bearings, and uses ultrasonic technology to detect flow velocity, with no friction or inertia. The measuring point is in front of the machine body, which does not destroy the flow field. It has high measurement accuracy, wide measuring range, sensitive sensing and linear flow measurement. It is not afraid of sediment and floating debris, has intuitive readings, is easy to operate, and is not easily damaged.

The Portable Doppler Ultrasonic Flow Meter supplied by Sino-Inst has a high sensor sensitivity and can measure liquids with low particle and bubble content. Accurate measurement, resistant to frequency converter interference (needs to be customized), excellent workmanship, and beautiful.

Our Portable Doppler Ultrasonic Flow Meter is widely used in various industrial measurements.
If you need to purchase Portable Doppler Ultrasonic Flow Meter, please feel free to contact our sales engineers!

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    Portable Doppler Ultrasonic Flow Meter with Clamp on Sensors

    The Portable Doppler Ultrasonic Flow Meter is specially designed for measuring the flow of media such as liquids and slurries containing certain solid impurities and bubbles in closed pipes. is a durable, non-contact ultrasonic flow meter designed to measure wastewater.

    Product SKU: Portable Doppler Ultrasonic Flow Meter

    Product Brand: Sino-Inst

    Product Currency: USD

    Product Price: 2999

    Price Valid Until: 2029-09-09

    Product In-Stock: InStock

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