Monday, May 23, 2011

Water Level Indicator With Buzzer Circuit Using Transistor

This is a simple water level indicator circuit that is based on few transistors . The circuit not only indicates the amount of water present in the overhead tank but also gives an alarm when the tank is full.
Water Level Indicator + Buzzer Circuit Using Transistor
The circuit is very simple and it has a very low current consumption , so you can use a 9 volts battery to powering this water level indicator alarm . This water level indicator alarm electronic circuit can be used even for rain alarm or short circuit alarm , a resistance with a value from 0 to about 1 M ohm will trigger it . The Q1 transistor acts as a switch which applies current to the unijunction relaxation oscillator Q2 . The signal frequency of the alarm circuit is give by the values and ratios of the C1 / R2 .

If you don’t have the transistors marked on the schematic diagram you can replace them almost with any similar types.

No comments:

Post a Comment

Note: Only a member of this blog may post a comment.