Overhead Water Tank Level Indicator Circuit

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.

Overhead water tank level indicator circuit. Automatic water level controller circuit. The uln2003 can be effectively used for making a full fledged automatic 7 stage water level controller with indicator as shown below. 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 water level is sensed by two floats to operate the switches for controlling the pump motor.

The water level indicator employs a simple mechanism to detect and indicate the water level in an overhead tank or any other water container. The simple water level indicator circuit presented here makes this system automatic i e. The above circuit shows a simple water level indicator system based on tranistors and led s. 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.

Monitoring of water level is really a difficult task in those places and it could also lead to wastage of water and power. Each sensors float is suspended. Wastage of water is really an issue in places where they use overhead tanks. Uln2003 is a 7 step darlington transistor array network inside a single ic chip.

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. Nowadays all the householders owners are storing the water in overhead tanks by using the pumps. The darlingtons are reasonably rated to handle current up to 500 ma and voltages up to 50 v. 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.

Here is a simple automatic water level controller for overhead tanks that switches on off the pump motor when water in the tank goes below above the minimum maximum level. 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. Uln2003 water level controller circuit.