How to calibrate the DC brushless water pump testing equipment?
1. Connect the adjustable and stable DC power supply to AC power:
a、 Set the current knob to the high gear of the current
b、 Adjust the output voltage to the actual voltage value of the tested water pump
2. Place a water pump (submersible pump) in the sink (box) and slowly add clean tap water into the sink until it reaches a height of at least 20cm above the water pump inlet
3. Insert the plastic hose into the water pump outlet, ensuring that the plastic hose is straight and fixed to the horizontal plane
4. Connect the water pump switch in series to the red wire and press the red and black power wires with clips separately on the positive and negative poles of the stabilized power supply (the positive and negative poles of the power wire must not be reversed)
5. Turn the water pump switch to the power-off state, and then connect the red and black power lines with clips to the red (positive) and black (negative) wires of the water pump power line
6. Check the above installation work and confirm that there are no errors
Article source: DC brushless water pump http://horayinvest.cn
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