Wall Mounted Doppler Ultrasonic Flow Meter ( Insertion type 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 65 to 4000 mm
● Insertion type 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 0.05 m/s
● A wide range of flow measurement, high flow rate can reach 12 m/s
● High-temperature transducer is suitable for liquids with temperature from -35℃ ~ 150℃
● The insertion type flow transducer can be installed when the process is at running status.
● User-friendly configuration
● 4-20mA, Relay and OCT outputs
● Accuracy: 2.0% F.S.


● 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 Range 0.05- 12 m/s
Liquid Types Supported Liquids containing 100 ppm of reflectors and at least 20% of the reflectors are larger than 100 micron.
Power Supply 85-265V AC,   24V DC/500 mA
Enclosure type Wall-mounted
Degree of protection IP66
Operating temperature  -20℃ to +60℃
Housing material Fiberglass
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
Totalizer gallons, ft³, barrels, lbs, liters, m³,kg
Communication 4-20mA, Relay and OCT output
keypad 4  buttons
Size 244(h)*196(w)*114(d)mm
Weight 2.4 kg


Technical data of  Transducer:

Transducers Type Insertion
Degree of protection IP67 or IP68
Suited Liquid Temperature Standard. Temp.: -35℃~85℃
High Temp.: -35℃~150℃
Pipe diameter range 65-4000 mm
Transducer Size 58(h)*58(w)*199(d)mm
Material of transducer Stainless steel
Cable Length Standard configure:  2 * 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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