Dalian Yheng Technology Co., Ltd. is one of the most reliable manufacturers and suppliers of wall‑mount doppler ultrasonic flowmete in China. Welcome to buy high quality wall‑mount doppler ultrasonic flowmete in stock here from our factory. If you have any enquiry about customized service, please feel free to email us.
Technical Specifications
| Item | Specifications |
|---|---|
| Measuring Principle | Ultrasonic Doppler frequency‑shift |
| Velocity Range | 0.04 ~ 5.00 m/s (custom‑extended range available) |
| Velocity Resolution | 1 mm/s |
| Velocity Accuracy | ±2~4% of measured value |
| Water Depth | 0.02 ~ 10.00 m; Resolution: 2 mm; Accuracy: ±0.5% |
| Water Temperature | 0 ~ 60 ℃; Resolution: 0.1 ℃ |
| Flow Measuring Range | 10 L/s ~ 99999999 m³/h |
| Transducer Protection | IP68 |
| Power Supply | 12 VDC, operating current 250 mA |
| Signal Output | RS485 Modbus, 4‑20 mA, relay alarm |
| Standard Cable Length | 10 m |
| Applicable pH | 6‑8, non‑strong‑corrosive water |
| Straight‑run Requirement | Upstream ≥20×channel width, downstream ≥5×channel width; minimum relaxed: upstream ≥5×, downstream ≥3× (measurement deviation will increase) |
Features
- Direct velocity measurement without weir‑flume Actual flow velocity is measured on‑site instead of deriving flow from water‑level formula. Suitable for irregular‑shape channels and retrofit projects of old drainage culverts. The liquid shall contain certain suspended solids or air bubbles for reliable detection.
- Flexible split wall‑mount layout Transmitter can be wall‑installed on shore for convenient operation and reading. The submersible transducer shall be fully submerged with minimum 20 cm water depth above it, fixed on channel bottom or side‑wall via bracket or concrete base.
- Multiple cross‑section calculation modes Built‑in calculation templates for rectangular, trapezoidal, circular, square and river‑shaped sections. Multi‑transducer configuration is supported for wide rivers to improve measuring accuracy.
- Diversified power & signal interfaces Operates on 12 VDC DC power supply and compatible with solar‑powered systems. It provides RS485 Modbus output (velocity, instantaneous flow, total flow, water level, temperature), 4‑20 mA analog output (instantaneous flow), plus relay alarm for flow threshold and total‑volume trigger. It can connect with RTU and data‑acquisition software for remote monitoring.
- Local LCD display & parameter protection On‑board LCD displays water level, instantaneous flow, accumulated volume, cross‑section area and water temperature. Password‑protected parameter locking avoids unintended field modification. Additional functions include small‑signal cut‑off and water‑level offset compensation.
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