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Online Doppler Flow Meter

Online Doppler Flow Meter

  • Product Number:LD-DP
  • Product Difference:Measures flow rate, velocity, and water level in pipelines, channels, and natural rivers

Product Introduction

Applicable to the following areas:
1. Stormwater monitoring · Wastewater treatment · Natural rivers and streams · Municipal water supply and drainage flow velocity, temperature, and flow measurement
2. Water loss/infiltration monitoring · Irrigation process monitoring · Industrial pollution measurement
3. Estuary & tidal studies · Fisheries/hydrology · Coastal erosion research
4. Sewer/culvert flow monitoring · Road drainage monitoring
5. Canal flow studies · River flow monitoring

Product Features

  • Measures flow rate, velocity, and water level in pipelines, channels, and natural rivers.

  • Provides instantaneous flow values and cumulative flow totals.

  • Communication interface: MODBUS-RTU.

  • The sensor operates reliably in harsh field conditions and contaminated water environments.

  • Environmental conditions: No mechanical moving parts; immune to silt blockage or entanglement by aquatic vegetation/debris.

  • Sensor power consumption: During flow velocity measurement: Current < 60mA, power consumption < 1W.

  • Probe housing pressure resistance: Exceeds 4.5 atmospheres, capable of underwater operation at 20 meters.

  • LCD display for convenient viewing and operation.

Product parameters

Instrument Power SupplyDC 9-18V, Power Consumption 2.5W
Display19264 Chinese Display with Sleep Mode
Flow Velocity Range

Measuring Range: 0.02 to 10.00 m/s, Unidirectional flow measurement

Flow calculation based on 5% standard cross-section. Non-standard cross-sections require multiple calibrations for accurate flow data

Resolution1mm/s, Accuracy: ±2%, ±1cm
Water Depth Range0~20m (Minimum depth: 5cm), Resolution: 2mm, Accuracy: ±0.2%
Flow CalculationFlow rate, total flow Waterway Types: Pipeline (Circular pipe >400mm, egg-shaped or other special-shaped pipes optional) Channel (Circular channel, rectangular channel or other special-shaped channels optional) Natural rivers and streams
Data OutputLightning-protected isolated RS485 port, Standard MODBUS-RTU format, compatible with wireless data transmission radios or GPRS/CDMA network communication modules for remote data transmission. Sensor IP68 protection rating, submersible up to 20 meters (standard sensor cable length 30 meters, maximum length 1000m).

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