1. 2. Before installing the pump, please carefully check whether there are hard objects (such as stones, iron particles, etc.) in the pump flow path that will affect the operation of the pump, so as not to damage the impeller and pump body during the operation of the pump.

5. For convenient maintenance and safe use, it is necessary to install a regulating valve on each of the inlet and outlet pipelines of the pump and a pressure gauge near the pump outlet. This is to ensure the operation within the rated head and flow range. Also, this is to ensure the normal operation of the pump and increase its service life.

8. After installation, please turn the pump shaft. The impeller should have friction or jamming, otherwise, the pump should be disassembled and check the cause.

1. All air switches of the metering pump are opened on the PLC cabinet to check whether the instrument is displayed on site and whether the liquid level display is normal. Then the pool will open quantitatively between the outlet valves.

4. Then go back to the console, click to enter the “metering system” screen, and manually adjust the output frequency of the metering pump.

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