Electromagnetic Open Channel Flowmeter, using the principle of "area velocity method" to measure open channel flow.
The open channel flow rate model is built into the system, it adopts signal point flow velocity methods and hydrology fluid science, the average flow velocity is deduced through the signal point flow velocity, the water flow is calculated based on the water level and the water cross section area of the flow.
It is composed of open channel converter, electromagnetic type flow velocity sensor, liquid level meter and solar power supply system.
It suits flow measurement of rivers, streams, irrigation and drainage channels, water conservancy projects, factory drainage and most sewers.
1. Large measurement range (flow rate range: 0.01-10m/s), the flow measurement isn’t effected by the backwater of the tributary surface.
2. The flow velocity sensor structure design conforms to fluid mechanics, small volume, easy installation, standard channel can be directly installed without modification, and low construction cost.
3. Stable measurement signal, and small effect for the channel water flow.
4. It displays the channel level, flow rate, instantaneous flow rate and integrated flow in the same time.
5. Storage the accumulative flow, the date can be saved in long time after the power off.
6. With the large LCD displays screen. Not only Chinese, but also English, convenient operation and flow analysis.
7. The real-time display velocity, convenient analysis the water flow regime.
8. Have RS485 communication port, and can come true the remote data transmission.
9. The portable type has data saving function, easy to analyse the measurement situation.
Main Technical Parameters:
1. Measurement Accuracy: Flow velocity: ±1.0%; Level liquid: ±0.5%; Flow rate:±2.5%
2. Measurement Range: Velocity range 0.01-10m/s;
3. Suitable Channel: Rectangular channel, trapezoidal channel and user-defined shape channel.
Channel width≥0.2m; Channel depth ≥ 0.1m;
4. Display Data: Flow rate(m/s)，Level liquid(m)，Instantaneous flow rate(m³/h)， Cumulative flow(m³);
5. Power Loss: DC12V/24V power supply, the matching system is less than 5W;
AC220V power supply. the matching system is less than 20W.
6. Protection Level: Sensor IP68; Converter:IP65;
7. Communication: RS485, Modbus Protocol
GPRS/4G：UD Protocol 、 TCP Protocol
NB-iot：UD Protocol 、 TCP Protocol 、CoAP Protocol
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