Radar Flow Sensor
  • Radar Flow Sensor
  • Radar Flow Sensor
  • Radar Flow Sensor

    • Radar Flow Measurement

    Radar Flow Sensor

    Radar open channel flow meter for non-contact measurement of flow velocities and levels in rivers, open channels, and drainage systems

    Radar flow sensors measure surface-flow velocity and water level from above the channel and calculate flow rate through an integrated hydraulic model. The radar open channel flow meters are used in rivers, urban stormwater and wastewater networks, reservoir gates and irrigation channels, where they track changes in velocity, water level and overall flow throughout the day. The non-contact design allows the sensors to work continuously in any weather, giving clear and reliable flow data for teams that monitor these sites.

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    Parameters
    • Velocity Measuring Range 0.1 m/s to 25 m/s
    • Velocity Accuracy ±1%
    • Blind Zone 8 cm
    • Velocity Pitch Angle 0° to 80°
    • Distance Measuring Range 30 m
    • Distance Accuracy ±1 mm
    • Power Supply +9 to 30 VDC
    • Velocity Antenna Beam Angle 12° × 25°
    • Operating Temperature –20 to 70 °C
    • Distance Antenna Beam Angle 6°
    • Ingress Protection IP68
    • Maximum Distance rrom Radar to Water Surface 30 m
    • Communication Interface RS485 (baud rate configurable), Bluetooth
    • Dimensions 165 × 79 × 94 mm
    • Weight 1214 g
    • Housing Material Aluminum alloy, PBT
    • Mounting Method Bracket installation
    • Communication Protocol Modbus
    • Operating Current ≤25 mA @ 24 V (working mode);
      ≤1 mA @ 12 V (sleep mode)
    Dimensional Drawing
    Dimensional Drawing
    Features
    • Radar flow sensors use a non-contact dual-radar setup with FMCW range measurement, along with wave-suppression processing to keep the data steady.
    • A hydraulic model developed with industry specialists calculates flow in open channels and pipelines, so water level, velocity and flow rate are output at the same time.
    • With IP68 protection, the sensors work well in demanding field conditions such as urban stormwater and wastewater networks, reservoir gates and irrigation channels.
    • The compact design makes installation easier and reduces maintenance work.
    • The in-house measurement module gives full control over the technology and allows flexible customization when needed.
    • Bluetooth configuration is built in, giving field teams a simple way to adjust settings and access extra functions.
    Applications
    River-flow Monitoring

    River-flow Monitoring
    The sensors help measure flow rate directly in rivers, providing useful data for daily hydrology work.

    Flood-season Monitoring

    Flood-season Monitoring
    Flow sensors support field teams during the rainy season by tracking urban flooding and sudden flood rises in mountain areas.

    Wastewater and Drainage Monitoring

    Wastewater and Drainage Monitoring
    They can be used in environmental inspections to check flow conditions in wastewater outlets and underground drainage pipelines.

    Marine Monitoring

    Marine Monitoring
    The sensors are suitable for nearshore measurements, where surface-flow conditions need to be observed regularly.

    Bridge Monitoring

    Bridge Monitoring
    Flow meters assist in bridge-related surveys by measuring river flow beneath the structure for safer installation and maintenance.
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    Radar flow sensors use a non-contact dual-radar setup to measure surface-flow velocity and water level at the same time. FMCW range detection handles the distance measurement, and the wave-suppression processing helps reduce the effect of surface movement. Both values are then used in a hydraulic model to get the final flow-rate result in a clear and consistent way.

    The dual-radar non-contact setup allows the sensors to measure velocity and water level without being affected directly by sediment. FMCW range detection and the built-in wave-suppression program help minimize the impact of surface disturbance caused by sediment, keeping distance accuracy within ±1 mm and velocity accuracy within ±1%.

    Yes. Parameters and functions can be adjusted to match the needs of unique open-channel, pipeline or field monitoring setups, allowing the sensors to fit specialized application scenarios.