Overhead Water Tank Level Indicator Circuit

Uln2003 water level controller circuit.

Overhead water tank level indicator circuit.

The darlingtons are reasonably rated to handle current up to 500 ma and voltages up to 50 v. Monitoring of water level is really a difficult task in those places and it could also lead to wastage of water and power. It also prevents dry run of the pump in case the level in the underground tank goes below the. Uln2003 is a 7 step darlington transistor array network inside a single ic chip.

The water level is sensed by two floats to operate the switches for controlling the pump motor. 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 uln2003 can be effectively used for making a full fledged automatic 7 stage water level controller with indicator as shown below. Automatic water level controller 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. Each sensors float is suspended. 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 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 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. The above circuit shows a simple water level indicator system based on tranistors and led s. Wastage of water is really an issue in places where they use overhead tanks. 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.

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. 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. The simple water level indicator circuit presented here makes this system automatic i e.