Water Level Pump Controller Circuit

Built around only one nand gate ic cd4011 the circuit is simple compact and economical.

Water level pump controller circuit.

Q1 comes on as soon as water level drops below pump protect. Automatic water pump controller circuit diagram some homes have a large water tank on high then pumping up the put on hold. Here s a automatic water pump controller circuit that controls the water pump motor. Nowadays all the householders owners are storing the water in overhead tanks by using the pumps.

Also this pump controller circuit can be tailored to work as a normal water level controller for a water tank or a cistern. It does not require all time electricity and also high water pressure. The water level controller circuit is a simple mechanism to detect and control the level of water in the overhead tank and also in the other containers. The circuit uses 6 transistors 1 ne555 timer ic a relay and few passive components.

The motor gets automatically switched on when water in the overhead tank oht falls below the lower limit. When the water level falls low enough to open the bottom float switch this circuit is interrupted and the pump shuts off. Similarly it gets switched off when the tank is filled up. It does this by turning on and off a water pump depending on the status of the sensors.

When you want to use just to turn on the tap at the bottom. This circuit is useful to implement in underground rain water harvesting tanks or sewer systems. Working operation of sump pump controller. The circuit formed by transistors q1 and q2 is designed to turn on the red led pump protect whenever there is no water between pump protect electrode and ground electrode at pump reservoir.

Automatic water level controller circuit leaf switches s1 and s2 used in tape recorders are fixed at the top of the sensor units such that when the floats are lifted the attached 5mm dia. Approx aluminium rods push the moving contacts p1 and p2 of leaf switches s1 and s2 from normally closed n c position to normally open n o position. As the water level falls and the top float switch opens current continues to flow through the bottom float switch through the com and no pins and back to the relay coil keeping the relay energized and the pump on. With a nc normally closed or a no normally open contacts of the relay rl we can handle any type of starter.

Q1 base current is too small less than 1 micro amp.