Portable Doppler Ultrasonic Flow Meter ( Clamp-on flow sensor )

Principle: use Doppler frequency shift to measure the flow velocity, it is suitable for measuring the fluid which contains solid particles or bubbles, not suitable for measuring pure water. The application scope includes: natural river course, artificial river course, farmland channel, city sewer, enterprise sewage outlet, sewage treatment plant and so on.

Product Description

● Suitable for pipe sizes ranging from 40 to 4000mm
● Clamp-on sensor, pipe must be fully filled with liquid
● The fluid must include a certain amount of air bubbles or suspended solid particles
● Excellent low flow rate measurement ability, low to 0.05m/s
● A wide range of flow measurement, high flow rate can reach 12m/s
● High-temperature transducer is suitable for liquids with temperature from -35℃ ~ 200℃
● No need to shut down the pipe flow when installing the transducers
● User-friendly configuration
● 4-20mA, OCT outputs
● Accuracy: 2.0% F.S.
● Rechargeable battery, working up to 50 hours


● Raw sewage
● Activated sludge
● Ground water
● Pulp and paper slurry
● Chemical slurry
● Drainage
● Mining re-circulation


Technical data of Transmitter:

Measurement principle Doppler ultrasonic
Resolution 0.25 mm/s
Repeatability 0.2% of reading
Accuracy 0.5% — 2.0% F.S.
Response time 2-60s for optional
Flow Velocity 0.05- 12 m/s
Liquid Types Supported Liquids containing 100ppm of reflectors and at least 20% of the reflectors are larger than 100 micron.
Power Supply 85-265V AC
Enclosure type Portable
Degree of protection IP65
Operating temperature  -20℃ to +60℃
Housing material ABS
Measurement Channels 1
Display 2 line × 8 characters LCD, 8-digit rate or 8-digit total (resettable)
Units User Configured (English and Metric)
Rate Rate and Velocity Display
Totalized gallons, ft³, barrels, lbs, liters, m³,kg
Communication 4-20mA,OCT output
keypad 6 pcs buttons
Size Transmitter: 270 x 125 x 175 mm
Weight 3 kg


Technical data of  Transducer:

Transducers Type Clamp-on
Degree of protection IP65. IP67 or IP68
Suited Liquid Temperature Std. Temp.: -35℃~85℃ for short periods up to 120℃
High Temp.: -35℃~200℃ for short periods up to 250℃
Pipe size 40-4000 mm
Transducer Size 60(h)*34(w)*33(d)mm
Material of transducer Aluminum for standard temp. sensor, peek for high temp. sensor
Cable Length Std: 5m




Answer : Please send your question or enquiry to our email: sales@hginstrument.com, we will forward the questions to the related engineer.

Answer :  Please communicate with the sales about the return procedure before returning product.

Answer :  The delivery time depends on the order quantity and product specification.  If the product’s specification is conventional ( not special ),  delivery time is 5 or 7 working days for order quantity ≤ 10 pieces;  delivery time is 2 or 3 working weeks for order quantity 15 ~ 30 pieces. 

Answer :  by Courier,  by Sea or by Air

Answer :  Yes,  Generally warranty is one year.

Answer :  From year 2015  to year 2021,  average annual sales is RMB 350 million ( about USD 54.7 million )

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