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LEVEL INDICATOR WATER TANK, CONTAINERS

LEVEL INDICATOR WATER TANK, CONTAINERS

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  IDEA ELECTRONIC PROJECT

LEVEL INDICATOR WATER TANK, CONTAINERS


This device allows you to view the water level present gifts any container.
Two metal rods, which have a sensor part, are applied to the device; they are immersed in the water of the container.
When the water level is minimum, chopsticks are very immersed, when the level is up, total immersion.
The distance between the two rods can vary from 5 to about 20 centimeters. Ten LEDs, which form the bar screen to give an indication of the water level in the container:
- LOW LEVEL = lit only DLL
- HIGH LEVEL = all LEDs are on.
Of course, when the level is about half, only DLL DL2 DL3 DL4 DL5 are on.

SETTING
1) Put water in the container to the desired minimum level.
2) Install the two metal rods manner to introduce as little as possible in the water.
3) Position TR1 and TR2 mid race and power the device with a voltage between 9 and 12 volts.
4) Set TR1 until the LED remains lit only DLL.
5) Fill the container to the maximum level desired.
6) Adjust TR2 until all LEDs light up.
7) Empty the container to the minimum level and repeat from point 4.
8) Fill the container to the maximum level and repeat from point 6.
Repeat steps 7 and 8 until all the LEDs light up to the maximum level and that only DLL remains lit at the minimum level.
The measurement methodology does not introduce direct current into the water, for this potential electrolysis process is virtually nil.

NOMENCLATURE

R1 = 10 Kohms 
R2 = 1 Kohm 
R3 = 1 Kohm 
R4 = 47 Kohms 
R5 = 1,5 Kohms 
R6 = 22 Kohms 
R7 = 22 Kohms 
Cl = 47 MF16V élec.
C2 = 10 MF 16V élec 
C3 = 10 MF 16V élec
C4 = - 10 MF 16V élec
C5 = 10 MF 16Vélec
C6 = l MF 16V élec
C7 = 10 nF céramique 
C8 = 100 nF céramique
C9 = 100 nF céramique 
C10 = 220 nF MKT 
C11 = 220 nF MKT
DLl = LED rouge 
DL2 = LED rouge 
DL3 = LED rouge 
DL4 = LED rouge 
DL5 = LED rouge 
DL6 = LED rouge 
DL7 = LED rouge 
DL8 = LED rouge 
DL9 - LED rouge 
DL10 = LED rouge 
Dl = Diode germanium AA117 
D2 = Diode germanium AA117
TR1 = Trimmer 4,7 Kohms
TR2 = Trimmer 4.7 Kohms 
IC1 = 78L05 
IC2 = 555
IC3 = 741 
IC4 = LM3914 
2 supports 8 broches 
1 support 18 broches

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