Heyangba Water Diversion Intake (Flow) Monitoring Project in Pujiang County, Min River Basin [Dayu Electronics]

　　   1. Date: October 18, 2021

2. Location: Pujiang County, Chengdu City, Sichuan Province

3. Product used: Ultrasonic Doppler flowmeter

Project overview: This project is a water intake (flow) monitoring project at the Heyangba water diversion outlet in Pujiang County, Min River Basin. In order to achieve standardized irrigation of tea gardens in Heyangba Village, Pujiang County, Chengdu City, and to better protect the ecological balance of the river, the relevant authorities decided to implement irrigation water intake flow monitoring at the Pujiang Min River Heyangba Water Diversion Management Station.

Product selection: Based on on-site investigation and the owner's requirements, this project selected the ultrasonic Doppler flowmeter manufactured by Fuzhou Dayu Electronics Technology Co., Ltd. to collect real-time data on water level, instantaneous flow, and cumulative flow at the site. The owner's existing data acquisition instrument is used to transmit data via RS485 in real time to the owner's designated platform, facilitating the owner's data viewing and effective management.

Power supply: A 220V power source is available on site; a 220V-to-12V switching power supply is used to power the ultrasonic Doppler flowmeter.

Device images and parameters:

1. Flow velocity measurement range: 0.03 m/s to 10.00 m/s;

2. Flow velocity measurement resolution: 1 mm/s;

3. Flow velocity measurement accuracy: ±1% of measured velocity;

4. Water depth measurement: 0.02 m to 10.00 m; resolution: 2 mm; accuracy: ±0.2%;

5. Temperature range: 0 to 60 °C; resolution: 0.1 °C;

6. Flow range: 10 L/s to 99,999,999 m³/h;

7. Power supply: 12 VDC;

8. Output signal: RS485; RS485 output signal content: flow velocity, instantaneous flow, cumulative flow, water level, temperature.