Overhead Water Tank Level Indicator Circuit

The water level indicator includes a simple mechanism which helps to detect and indicate the water level in an overhead tank or any other water container the sensing is done by using a set of nine probes which are placed at nine different levels on the tank walls with probe 9 to probe 1 placed in increasing order of height common probe i e.

Overhead water tank level indicator circuit.

Automatic water level controller circuit. The water level is sensed by two floats to operate the switches for controlling the pump motor. The water level alarm circuit is a simple mechanism to detect and indicate the level of water in the overhead tank and also in the other containers. The simple water level indicator circuit presented here makes this system automatic i e.

The uln2003 can be effectively used for making a full fledged automatic 7 stage water level controller with indicator as shown below. Each sensors float is suspended. It also prevents dry run of the pump in case the level in the underground tank goes below the. The sensing is done by using a set of nine probes which are placed at nine different levels on the tank walls with probe 9 to probe 1 placed in increasing order of height common probe i e.

Wastage of water is really an issue in places where they use overhead tanks. Nowadays all the householders owners are storing the water in overhead tanks by using the pumps. The heart of the circuit is the transistors bc 547 there are total7 transistors in the circuit and each one will be sensing the level of water present in the overhead water tank there is one extra power led without a transistor and that is because this red led will be telling us two things. The darlingtons are reasonably rated to handle current up to 500 ma and voltages up to 50 v.

The sensor probes comprise a b c and d where a is the common probe and b c and d are meant for sensing the minimum middle and maximum levels respectively. Uln2003 is a 7 step darlington transistor array network inside a single ic chip. The above circuit shows a simple water level indicator system based on tranistors and led s. Monitoring of water level is really a difficult task in those places and it could also lead to wastage of water and power.

It has numerous transistors acting as a switch and the switch gets activated when the sensors tell them to. Here s a simple water level indicator for overhead tanks that uses three leds led1 led2 and led3 to indicate minimum middle and maximum water levels in the tank. The water level indicator employs a simple mechanism to detect and indicate the water level in an overhead tank or any other water container.