Wall-Mounted Doppler Open Channel Flow Meter

Wall-Mounted Doppler Open Channel Flow Meter

Doppler Open Channel flow meter can be used to measure the liquid flow rate of the pipeline which is partially filled with liquid.
Principle: Use Doppler frequency shift to measure the flow velocity, it is suitable for measuring the fluid which contains solid particles or bubbles, not suitable for measuring pure water.
Application scope: City pipe network, underground sewage testing, sewage treatment plants, streams and rivers testing.

Technical data of Transducer:

Velocity:
Velocity range:
0.02 ~ 0.8m/s, 0.02 ~ 1.6m/s, 0.02 ~ 3.2m/s, 0.02 ~ 6.4m/s, 0.02 ~ 13.2m/s, Bidirectional
Velocity accuracy:
±1% measured velocity
Velocity resolution:
1mm/s
Depth
(Ultrasonic principle):
Range:
0.02 to 5 m
Accuracy:
± 1% of measured
Resolution:
± 1 mm
Depth
(Pressure principle)：
Range:
0 to 10 m
Accuracy:
± 1% of measured
Resolution:
± 2 mm
Temperature：
Range:
0°C to 60°C
Accuracy:
±0.5°C
Resolution:
0.1°C
Electrical Conductivity (EC):
Range:
0 to 200,000 µS/cm, Typically ± 1% of measurement
Resolution:
±1 µS/cm
recorded as a 16-bit value (0 to 65,535 µS/cm) or a 32-bit value (0 to 262,143 µS/cm)
Tilt
(accelerometer):
Range:
±70° in roll and pitch axes.
Accuracy:
±1° for angles less than 45°
Output:
SDI-12:
SDI-12 v1.3, Max. cable 50m
RS485:
Modbus RTU, Max. cable 500m
Environmental：
Operating temperature:
0℃ ~+60℃ water temperature
Storage temperature:
-20℃ ~+60℃
IP class:
IP68
Others：
Cable:
The standard cable is 15m, the maximum option is 500m.
Sensor material:
Epoxy-sealed body, Marine Grade 316 Stainless Steel Mounting Bracket
Sensor size:
135mm x 50mm x 20mm (L x W x H)
Sensor weight:
1kg with 15m of cable