doppler open channel flow meter

Deskripsi

Product Advantages:

The core value of the Doppler open channel flowmeter lies in its resistance to contamination and simple installation, perfectly resolving measurement challenges faced by traditional methods in harsh water conditions.

• Non-contact measurement, impervious to contamination and corrosion: The sensor is suspended above the water surface, avoiding contact with the water body. This completely eliminates issues such as corrosion, scaling, debris entanglement, and sensor wear, resulting in extended service life and minimal maintenance.
• Adaptable to Extremely Complex Water Conditions: Measurement relies on reflections from suspended solids and bubbles in the water, making it particularly suitable for measuring sewage, slurry, and rainwater rich in silt, impurities, oils, and fibers. Its operational adaptability far exceeds that of instruments based on other principles.
• Extremely Simple Installation and Maintenance: No civil engineering work is required to construct weirs or channels. Simply mount the sensor above the channel, configure parameters via a mobile app, and begin measurement. No water diversion or excavation required, reducing installation costs by 90%.
• Built-in intelligent algorithms for multi-functional operation: A single device simultaneously measures flow velocity, liquid level, and water temperature, automatically calculating flow rate. Features multiple standard weir/channel models and customizable channel profiles, eliminating the need for external level sensors and offering high integration.
• Reliable data with remote connectivity: Utilizes advanced Digital Signal Processing (DSP) technology for strong anti-interference capability. Supports 4G/NB-IoT wireless transmission, sending data directly to the cloud platform for unattended operation and remote maintenance.
• Zero pressure loss, energy-efficient and eco-friendly: Measurement causes no obstruction to water flow, avoiding the water level buildup and energy loss associated with weirs. Maintains the channel’s natural flow state.

Core Application Areas:

• Municipal Drainage and Wastewater Treatment: Flow monitoring at wastewater treatment plant inlets, drainage networks, sewage pumping stations, and overflow outlets (CSOs/SSOs).
• Industrial Wastewater Discharge: Measurement at facility discharge points, compliance monitoring, and flow measurement for heavy metal wastewater and oily wastewater.
• Hydrology and Water Resources Monitoring: Non-engineering flow measurement in rivers, streams, and irrigation channels; flood early warning.
• Mining and Metallurgy: Flow monitoring for tailings pond overflows, mine pit drainage, and highly corrosive/abrasive slurries.
• Environmental Regulation and Inspection: Portable device for ad hoc flow verification and enforcement evidence collection by environmental authorities.

Technical Specifications

• Measurement Principle: Ultrasonic Doppler effect for flow velocity + Ultrasonic time-of-flight method for liquid level
• Flow Velocity Range: 0.01 m/s to 5.0 m/s (Measures extremely low flow velocities)
• Liquid Level Range: 0.2 m to 5 m (Optional extended ranges available)
• Flow Accuracy: ±3% to ±5% of reading (typical, dependent on field installation and flow conditions)
• Channel Adaptability: Compatible with various models including Parshall flumes, rectangular channels, trapezoidal channels, U-channels, triangular weirs, etc.
• Output Signals: 4-20mA, RS485 (Modbus), 4G/NB-IoT wireless transmission
• Power Supply: DC 12-24V or solar panel powered
• Protection Rating: Sensor IP68, Host IP67
• Installation Methods: Cantilever bracket mounting, bridge mounting, portable installation