Water Pump Auto On Off Circuit Diagram

It can automatically switch on and off the domestic water pump set depending on the tank water level.

Water pump auto on off circuit diagram. Water pump controller circuit water pump controller circuit. This diagram is for the circuit to empty a tank using two normally open float switches and a two pole changeover relay. And it can not only use for controlling water level but you can use it for many other liquids. This low output pin 3 of ic1 cuts off relay driver transistor t1 and de energises relay rl1.

The circuit is completely automatic which stops the pump motor when the water level in the overhead tank goes to a preset at top level. The circuit will automatically switch on any water pump motor when the level of water in a tank reaches below from the required level and automatically switch off the pump after filling the tank. Switches off the pump when the water level in the overhead tank goes to touch with top level wire. A simple but very reliable and effective automatic water pump controller circuit diagram is shown here which able to stop the motor pump automatically when the tank is full.

You can implement this motor driver circuit at your home or college using less costly components. The bottom switch will be closed provided the liquid is above that switch point. As a result internal sr flip flop of ic1 sets and its output goes low. The circuit uses 1 transistor 1 ne555 timer ic a relay and few passive components.

The circuit can be used for variety of purposes like filling pools tanks container washing machines etc. Automatic water level controller circuit is a simple engineering project. One set of relay contacts connects the pump to the supply and the other maintains the relay on state while the level.