1.555 IC circuit. Schematic diagram of water level indicator Above the circuit also know as THREE TRANSISTOR CIRCUIT.Because here in this circuit three transistor are used, the purpose of transistor TO HIGH THE SIGNAL. There are three different type of color LED shown in circuit, first Yellow LED will light when the water present at low level, the Green LED will light at the medium level of water and the Red LED will light at the high level of water in water tank. Here 6 resisters are shown in figure and one 9V battery. Step: - 2 Step: - 3 Step: - 4 Step: - 5 Step: - 6 Actual design of water level indicator According to the figure are shown this is actual working circuit of water level indicator here you can see three wire are used to indicate the different water level of glass through the different color LED. At the other side battery connection are shown with the positive and negative sign. And also three transistors are shown in figure which used to high the signal. Three LED Battery Jumper wire
These are 6 resisters shown in figure first 3 resisters are (470Ω) and other three resisters are (240Ω).
Producer of making
Water level indicator used to express the level of water in water tank and boiler etc. different types of water level indicator are available in market like mechanical and electronics. They can apply as their order & condition to the industries and domestic zones. This circuit not only indicates the amount of water present in the tank but also gives an indication when the tank is full. As the water continues to fill the tank, the LEDs light up gradually.
NEED OF WATER LEVEL INDICATOR
·To prevent wastage of energy.
·To prevent wastage of water.
·Automatic switch off.
There are 3 LED available to indicate the different level of water in water glass. This circuit expresses the level through the lighting of LED. This kind of circuit is not used more because of its silent features. Generally we used buzzer type circuit.
The buzzer type circuit we also shown in this project with the image there are some few changes in buzzer circuit in compare of above circuit.
Right now in the market different type of circuit are available with excellent quality.
Here our aim to demonstrate the simple model which you can make at your home and for your science far.
Use of water level indicator
Water level indicator used as different area as below.
4.Power plant industries
6.Water distributor plant
7.Stone and marble industries
Different type of water level indicator
1.Water level gauges: These level gauges are basically applied to determine the rise or fall occurring in water level.
1.Three transistor circuit
Working Principal of circuit
The principle of this circuit we expressed by image as step wise
Step: - 1
Above in this the first step express the flow of current, here the negative current flow in the ground level.
This is next step of this circuit in this circuit shown the positive current flow in the other side.
In this circuit the water inserted in the glass at the low level.
When the water touch to the low level wire point then negative charge transfer through the wire.
The negative charge flow into wire and reached at transistor here the negative charge convert into positive charge and flow toward the yellow LED.
In this figure the positive charge flow toward yellow LED and it lighting and express the low level of water in the water tank.
The same process happens for the another level and express the different level of water.
List of component
Bread board is temporary circuit arrangement device it is mostly used to check first the circuit it works or not.
There are three different colors LED shown in figure, Yellow, Green and Red and the water level depend on their color form.
Yellow LED indicate the low level, Green LED indicate the medium level and the Red LED indicate the high level of water in water tank.
This is 9V battery is used in this circuit and the other side is battery connector it use to connect the circuit to the battery.
Jumper wire is copper laminated aluminum wire is used to join the component like transistor, resister, capacitor, and etc.
These are three transistor (A1015) is used in this circuit to high the signal.
This is water glass is used as little water tank. As shown in figure there are 4 different colors wire inserted in the glass. First Black wire used for the ground level to complete the circuit and other there are used for the different level like low, medium and high. This level can be decided as your requirement.
WATCH THIS VIDEO TO MAKE THIS CIRCUIT
1.Role model of water level indicator
This is a simple model water level indicator which can be made at your home without any cost but it is little so you can use this as model for science fair and technical college.