Open channel ultrasonic flow meter split type for waste water
treatment 9000m3/h
Work principle
Its sensor is a transceiver which emits high frequency sound, which
hits the medium surface and returns back to the sensor receiver.
The time of travel of the ultrasound is inversely proportional to
the height of the flowing medium. This way the height of the
flowing medium is calculated. And with the algorithms programmed
the Height, Flowrate and Total Flow are calculated and displayed.
Wiring dimensions
Main technical index
| Model | WL |
| Applicable flume | Right triangle weir slot (Open size: 500mm) |
| Parshall flume (Larynx way width: 51mm, 76mm, 152mm, 228mm, 300mm) |
| Rectangular weir (Opening size: 250mm, 500mm, 750mm ) |
| Flow range | depending on weirs dimensions to be used, up to 335000 m3/hr |
| Flow precision | 5% FS |
| Level range | 1m |
| Level precision | 0.5% FS |
| Sensor blind area | <300mm @ 25C |
| Output | 4-20 mA, tri wires |
| Display | LCD display, include: four levels four transient flow Eight of the accumulative total flow 16 calendar clock |
| Work temperature | 50C , customized available |
| Power supply | DC24V / 300 mA, AC220V |
| Outlet way | Sensor leads 20m, instrument standard plugs |
| Installation | instrument wall mount, sensor grain installation M49x1,5, or clamp
on |
| Protection | IP65 (sensor) |
Features
- Built-in variety of algorithms, suitable for a variety of standard
weirs.
- Programmable Relay Output.
- Built in temperature sensor. Real-time automatic temperature
compensation.
- The blind zone can be manually set, shielding the probe near the
interference signal.
- Calibrated at Factory. And if required we shall do calibration at
site.
Sensors
Ultrasonic sensor Static pressure sensor
Applications
Measurement of water flow in Effluent, Waste Water, Rivers, Canals,
Drains, Sewage, etc.
Flow Totalizer parameters
Flow measuring range: Depends on the size of the flume.
Maximum Count: 9999999999
Types of suitable weirs: Triangular weir, rectangular weir,
Parshall flume, etc.
Display accuracy: 1 count. Overall accuracy depends on the input
signal. Different Weirs /
flumes has different accuracies. A triangular weir has 1 to 2% flow
error, a rectangular weir
has 1 to 4% accuracy, a Parshall flume has 3% flow error, etc.
Display: 2.8-inch LCD. Displays Height, Flowrate, Total Flow, etc.
Output
Voltage output: DC 12V or 24V
Signal output: RS485/RS232; 4~20mA; 2 channel relay
Troughs
Triangle weirs
Installation sample
Advantage
The production capacity is 20000 ultrasonic converter and 100,000
ultrasonic sensor.
