1、 Measurement method of split type ultrasonic open channel flowmeter

The split type ultrasonic open channel flowmeter is mainly used for measuring channel flow. Its working principle is based on the combination of measuring water tank weir and ultrasonic technology. Install a measuring weir on the channel, which can convert the flow rate inside the channel into the level of liquid. Specifically, as the flow rate in the channel increases, the liquid level in the weir will rise accordingly; On the contrary, when the flow rate decreases, the liquid level decreases. However, due to factors such as cross-sectional area, slope, and roughness of the channel, there is no definite correspondence between liquid level and flow rate. Therefore, by installing a weir, the correspondence between the upstream water level and flow rate in the channel mainly depends on the geometric dimensions of the weir, thus achieving the conversion of flow rate to liquid level.

In the actual measurement process, the ultrasonic open channel flowmeter uses a level gauge to measure the liquid level inside the tank weir. Subsequently, the flow converter (secondary meter) calculates the liquid flow rate quickly and stably through high-speed and reliable microcontroller processing based on the preset liquid level flow relationship of various tanks and weirs. This process is not only efficient, but also ensures the accuracy of the measurement.

2、 Product features of split type ultrasonic open channel flowmeter

1. Adapt to harsh environmentsThe split type ultrasonic open channel flowmeter adopts digital signal processing technology, which enables it to work stably in harsh environmental conditions, such as high temperature, humidity, or heavily polluted environments.

2. Easy debugging and installationThe device is equipped with * signal environment display (oscilloscope technology), making the debugging and installation process easier and more intuitive, greatly reducing the difficulty of operation.

3. Stable and reliable measurementThrough multiple data filtering techniques, the split type ultrasonic open channel flowmeter can ensure measurement stability and reliability, and maintain high accuracy even in situations with large flow fluctuations.

4. High precision outputThe device has a 16 bit high-precision D/A output, significantly improving the accuracy of 4-20mA output, making the measurement results more accurate and reliable.

5. Convenient data communicationEquipped with a 485 interface, it can easily connect to computers or other data collectors to achieve real-time data transmission and remote monitoring.

6. Wide range measurementThe flow measurement range of the split type ultrasonic open channel flowmeter is wide, ranging from 0 liters/second to 10 meters ³/second, and is suitable for measuring flow in channels of different scales and types.

7. High protection levelThe instrument display and probe parts have both reached IP65 protection level, which can resist the intrusion of dust and water, ensuring the stability and reliability of the equipment during long-term operation.