Working conditions:
1, 50 Hz(tolerance±2%,), 380 V voltage (tolerance±10%,) of the three-phase AC power.
2, The water temperature is less than 30degree celsius.
3,The distance between pump and the bottom of well is not less than 3m
4,The water PH value is 6.5 ~ 8.5.
5,The sand content of water is less than 0.02%,
6,The motor must be full of water before work!