1. Non-contact measurement, no wear, no pollution.
2. No flow resistance, no head loss.
3. High-precision measurement, not affected by water vapor, temperature and pressure changes.
4. The host and probe types are diversified, can be used according to the needs of the site.
▋ Product Description
The BOY-WR06-F split-type ultrasonic open channel flowmeter is a non-contact flow monitoring device based on the ultrasonic ranging principle, specifically designed for flow measurement in open channels (such as drainage ditches, rivers, irrigation channels, etc.). Its core consists of an ultrasonic sensor and a main unit. The sensor is installed above the channel and calculates the liquid level height by transmitting and receiving ultrasonic signals. Combined with the preset channel geometric parameters (such as weir type, slope, etc.), it automatically converts them into real-time flow data. This equipment features high precision (±1%), corrosion resistance, and maintenance-free operation. It is suitable for fields such as sewage treatment, water conservancy monitoring, and chemical discharge. The split design enables the host to be installed away from harsh environments, extending the equipment's lifespan. It also supports signal outputs such as 4-20mA and RS485, facilitating integration into SCADA systems.
▋ Product Parameter
Parameter | |
Ranging range | 0m~3m |
Ranging accuracy | 0.3% |
Flow Range | 0.1L/s to 10m³/s (determined by the type and specifications of the flow measurement weir) |
Cumulative Flow | 999999999999m³ |
Flow Accuracy | ±1% (depending on the type of weir) |
Measurement Resolution | 1mm |
Measurement Blind Area | 0.3m~0.5m |
Pressure | Normal pressure |
Communication Method | RS485 interface, Modbus protocol |
Power Supply Voltage | DC12V, DC24V/AC220V, with built-in lightning protection device |
Operating temperature | -20°C ~+60°C |
Analog Output | 4-20mA |
Instrument Display | Built-in LCD display for instantaneous and cumulative flow |
Protection Level | Instrument display part: IP65, Probe part: IP68 |
▋ Working Mechanism
BOY-WR06-F split-type ultrasonic open channel flowmeter sensor emits ultrasonic pulses towards the liquid surface, receives the reflected signal and calculates the time difference, and obtains the liquid level height through sound velocity compensation.The flow rate can be calculated in real time by combining the flow-liquid level formulas of standard weirs and channels such as Parchel channels and triangular weirs, or by using user-defined channel parameters. After processing the data, the host outputs digital/analog signals. Some models support wireless transmission (such as LoRa, NB-IoT).
▋ Main functions
Functions | Description |
Flow Velocity Monitoring | Collection of instantaneous flow rate and cumulative flow |
Data Storage | Built-in digital memory, ensures data is not lost after power failure |
Data Transmission | Data transmission via RS485 |
Low Power Operation | Supports low power consumption sleep mode |
Protection Level | IP65 protection level |
▋ Product Features
BOY-SW08-F open channel flowmeter has the technical advantages of continuous waves, with more accurate measurement and strong environmental adaptability. Standby power consumption is less than 1W, and solar power supply is optional, making it suitable for outdoor scenarios without mains electricity. Strong anti-INTERFERENCE resistant to rain and dust interference; Supports multiple communication methods such as 4-20mA, RS485, LoRa, NB-IoT, etc. It is equipped with a built-in digital memory that can store ≥1 year of historical data and supports resume from breakpoint.
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Non-contact measurement | Modular maintenance | Split design |
No wear and no pollution | The sensor and the main unit are plug-and-play, and faulty components can be replaced separately | The sensor is separated from the main unit, and the main unit can be installed in the control room |
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Large range and small blind zone | Compatibility with multiple weir channels | Millimeter-level measurement accuracy |
Strong reliability and small measurement blind zone | Support standard weir channels such as Parchel channels, triangular weirs and rectangular weirs | The dynamic temperature compensation algorithm is adopted, resulting in a small comprehensive error |
▋ Application
BOY-SW08-F open channel flowmeter is suitable for flow measurement in rectangular and trapezoidal open channels and culverts in reservoirs, rivers, water conservancy projects, urban water supply, sewage treatment, farmland irrigation, water administration and water resources, etc.
▋ FAQ
1. How to determine the installation height?
It is recommended that the sensor is installed at a distance of 0.3 to 0.5 meters from the highest liquid surface to avoid interference from splashing.
2. Is the measurement affected by foam?
Foam can absorb ultrasonic waves; therefore, it is necessary to choose a model resistant to interference or to install a wave guide pipe.
3. Does the channel slope variation affect accuracy?
The actual slope must be entered in the parameter settings; otherwise, it will cause errors.
4.How to deal with channel siltation?
Regularly clean the silt near the measurement point or select a side-mounted sensor.
5.How to troubleshoot abnormal data?
Check the sensor angle, power supply stability, and parameter settings; restart the system as a priority.