How To Choose The Model Of Ultrasonic Open Channel Flow Meter?

The open channel flow meter is a non-contact measuring device with the ability to be used in harsh environments. Ultrasonic open channel flow meter are widely used in various situations, including urban water supply diversion channels, thermal power plant cooling diversion river drainage channels, sewage treatment inflow and discharge channels, enterprise wastewater discharge, water conservancy projects and agricultural irrigation channels, etc.

open channel flow meter manufacturers use ultrasonic technology for measurement, enabling accurate detection of flow without contact. This allows it to operate normally even in harsh environmental conditions. For example, in urban water supply diversion channels, there may be poor water quality and a lot of sediment, but Ultrasonic Open Channel Flow meter can work stably and provide accurate flow data. Similarly, during wastewater treatment, inflow and discharge channels are often affected by pollutants, but Open channel flow measurement instrument can reliably measure flow.

In addition, open channel flow meters are also suitable for water conservancy projects and agricultural irrigation channels. In these application scenarios, accurate flow measurement is critical for proper management of water resources. Open channel flow measurement can provide accurate and reliable measurement results, helping decision makers better grasp and allocate water resources.

Several key points for selecting models of Ultrasonic Open Channel Flow meter are as follows:

1. Measuring range and accuracy: Choose the appropriate water level measuring range and accuracy according to the actual application requirements. Usually the water level measuring range is selected within the range of 0.4-12m, and the accuracy is considered based on economical and cost-effectiveness.

2. Selection and installation of water measuring weirs and troughs: Common water measuring weirs and troughs include triangular weirs, rectangular weirs and Parshall troughs. For agricultural irrigation and sewage discharge, it is recommended to choose a parshall flume flow meter because its water level-flow relationship is calibrated experimentally and the data is relatively accurate.

3. Power supply type: Select the appropriate power supply type according to the site conditions, such as 24V DC, 12V DC, 5V DC, 220V AC, etc. If there is mains power supply on site, choose 220V AC; if there is no mains power supply, give priority to 24V DC to ensure the consistency of on-site power supply.

4. Signal transmission type: Choose digital signal or analog signal as needed. In the solution, digital signals are preferred, and the data interface can be RS485 or RS232, because digital signals are not easily affected by the environment, have stable transmission, are easy to store and exchange, and are better connected with the data acquisition system.

5. Protection level and meter body material: Considering that it is used in outdoor environments in most cases, the protection level of the probe part should reach IP68, and the protection level of the meter display part should not be lower than IP67, and ensure that the wire hole of the meter is blocked. The surface material should meet the requirements of non-oxidation, non-aging and non-deformation within the ambient temperature and humidity range.

The above are several key points for selecting an Ultrasonic Open Channel Flow meter model. Based on comprehensive consideration of actual needs, select a suitable model for application.