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Level Indicator/Working and its uses

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By Prathima

Level indicators
 Level indicator is used to detect liquid levels. This is mainly used in water treatment plants, Sewage treatment facilities, buildings , housing complexes and so many other appliances. It will sense lower to higher level of water which is connected to control panel to give the information about the level of liquids. Water level indicator is a combination of probe  sensor or float switches.
Working of level indicator
 The mechanism of level indicator is quite simple. It will sense the level of liquid in storage tank by using sensor probes. When water reaches a certain level it will give signal to your connected device(Probes send information back to the control panel to trigger an alarm or any indicator.
When we are using any type of sensor our motor is to control all the equipment automatically, here  also same, when you connecting the level indicator in storage tank, the control panel can be programmed to automatically turn on or off the pump.

When you are wiring the level indicator for your home or building you have many options to make it automatically, you can program by using plc or micro-controller based device and one more is relay logic. You can control the level of the water by making your own automatic circuit in simple way.          
            Let’s think that your overhead tank is full of liquid, Now you want to make the circuit for your tank. The tank should fill automatically when water reaches at lower point or when tank is empty.
You can keep some indication or alarm in your home or in your control panel. When tank is full you can make motor off automatically and alarm on, when tank is empty motor on automatically and red lamp on.
In below fig1. Showing that Relay logic of automatic water control system for storage tank in your home.


In below fig2. Showing that PLc Programming  logic of automatic water control system for storage tank in your home by sing push button and sensor.
Simple plc programming of motor control Automatically.


In below fig.Motor off when water reaches at certain level and alarm on.
Uses of water level Indicator:
                  1.     Hotels

2.     Home apartments

3.     Commercial complexes

4.     Factories

5.     Where cooling towers are used

6.     Residential and commercial swimming pools

7.     Anywhere water levels need to be controlled

8.     In vehicles as a fuel level indicator

9.     In huge containers as a liquid level indicator

10. Single phase motor

11. Single phase submersibles

12. Three phase motors

13. Open wells

14. Bore wells

Benefits Of Water Level Indicators

         a.         Less maintenance

b.         Compact design

c.         Automatic water level indicators ensure no overflows or running of dry pumps

d.        Saves money by using less water and electricity

e.         Less manpower

f.          Consumes very little energy, perfect for continuous operation

g.         This types of Sensor can be used to control in any type of tank.

 
































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