Automatic Water Pump Controller Circuit Diagram Pdf. It switches on the pump when the water level in the overhead tank goes low and switches it off as soon as the water level reaches a pre determined level. The 12v dc power supply is given to probe c which is the limit for minimum water always stored in the tank.
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The pump motor is of single phase. Let us consider two reference probes a and b inside the tank where a is the lower limit probe and b is the upper limit probe. The 12v dc power supply is given to probe c which is the limit for minimum water always stored in the tank.
It switches on the pump when the water level in the overhead tank goes low and switches it off as soon as the water level reaches a pre determined level.
This water level controller circuit makes this system automatic. You can read circuit diagram of automatic water pump controller pdf direct on your mobile phones or pc. The motor will also switch off when the sump water is exhausted before it fills the over head tank or if the pump is running dry as well as maintains voltage fluctuations. The pump motor is of single phase.
