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  • radar-flowmeter

Radar Flowmeter

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 Product Description

This product is mainly used for water measurement of open channel in irrigation area, and used as data terminal for remote measurement or detection. It is usually chosen in standard section for measurement. The flow meter adopts high-precision radar sensor to measure water level and flow velocity, and uses the Joye self-owned irrigation canal model to calculate flow, and takes the influence of the environment around the open canal into account for correction.

The flow measurement data is provided by MODBUS protocol or custom protocol through serial port.

The open channel flow meter is mainly composed of radar current meter and radar water level meter. The working diagram is as follows:

Velocity Measurement Range:  0.05 ~ 15m/s (Related to water flow)
Velocity Measurement Accuracy ±1%FS±2.5% of reading
Transmitting Frequency: 24.000 ~ 24.250GHz
Distance Accuracy:  ±1cm
Protection Degree IP66

Product F

lNon-contact measurement, safety and low-loss, less maintenance, not affected by sediment

lAll-weather, not affected by temperature, strong anti-interference ability

lMeasurement operation and interval mode are combined to save energy and reduce consumption

lMultiple interfaces are provided to facilitate access to the platform system

lMultiple communication protocols for different users

lIP68 waterproof design, suitable for various outdoor environments

lSmall and compact appearance, super cost-effective

lSimple installation, less civil works

The radar flow meter, as a kind of water level meter and flow velocity with microwave technology, is combined with the measuring technologies by mature radar water level meter and radar velocimeter, which is mainly applied to the measurement for water level and flow velocity of open channels, such as river, reservoir gate, pipe network of subterranean river course and irrigation channel.

This product can effectively monitor the change status of water level, velocity and flow, so as to provide accurate flow information for the monitoring unit.


1. Built-in imported 24GHz radar flow meter, 26GHz radar liquid level gauge, CW plane microstrip array antenna radar, non-contact detection, the two-in-one product can realize the measurement of flow rate, water level, instantaneous flow and cumulative flow.

2. All-weather, high-frequency microwave ranging technology can realize online automatic monitoring, unattended.

3. The antenna transmission frequency is flexible and adjustable, and the anti-interference ability is strong.

4. A variety of data communication interfaces RS-232 / RS-485 can be set, which is convenient for users to connect to the system.

5. The construction and installation are simple, the measurement operation is combined with the sleep mode (about 300mA during normal operation, and the sleep mode is less than 1mA), which saves energy and reduces consumption, and is economical and applicable.

6. The non-contact meter does not destroy the flow state of the water and ensures the accurate measurement data.

7. IP67 protection grade, not affected by climate, temperature, humidity, wind, sediment and floating objects, and suitable for high flow rate environment during flood period.

8. Anti-condensation, waterproof and lightning protection design, suitable for various outdoor environments.

9. Small appearance, convenient installation and easy maintenance.

10. Domestic brands with independent intellectual property rights, localized service response support.

11. The core components have the test report of "Huadong Testing Center for Hydrological Instruments".

Technical Data

1.1 Working Condition Parameters 



Supply Voltage

DC 7 24V

Current(12V Power Supply)

About 300mA in normal operation, and less than 1mA in sleep mode.

Working Temperature

-35℃ 70℃

Protection Class


Emission Frequency

24.000 24.250GHz

Communication Interface

RS-232 / RS-485

Communication Protocol 

MODBUS-RTU / Customized Protocol / SZY206-2016 "Water Resources Monitoring Data Transmission Protocol" 

1.2 Measurement Parameters 



Velocity Range

0.15 15m/s

Velocity Accuracy

±1% FS, ±2.5% of reading

Velocity Resolution


Distance Range

1.5 40m

Distance Accuracy


Distance Resolution


Antenna Beam Angle

Flow Velocity14 x 32 
Water level11 x 11

Interval Time 

1 5000min

1.3 Appearance Parameters



flow meter Size ( LxWxH)


Support Size ( LxWxH)



flow meter + support  5.8kg

Housing Material

Galvanized, stainless steel sheet

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