Water level alarm circuit
Description.
Here is a simple water level alarm circuit that will produce an audible alarm when the water level reaches a preset level.The circuit can be powered of a 3V battery and is very handy to use.
The circuit is based on an astable multivibrator wired around IC1 (NE 555).The operating frequency of the astable multivibrator here will depend on capacitor C1, resistances R1,R2 and the resistance across the probes A&B.When there is no water up to the probes,they will be open and so the multivibrator will not produce oscillations and the buzzer will not beep.When there is water up to the level of probes,some current will pass through the water,the circuit will be closed to some extend,and the IC will start producing oscillations in a frequency proportional to the value of C1,R1,R2 and the resistance of water across the probes.The buzzer will beep to indicate the presence of water up to the level of the sensing probes.
Circuit diagram with Parts list.
Notes.
- The circuit can be powered of a 3V battery.
- Assemble the circuit on a good quality PCB or common board.
- The probes can be made of two insulated copper Aluminiun wires.
- Place the probes at the position where you have to sense the level.
yes o
mail me any latest news or innovation on circuit
mail me any latest news or innovation on circuit
the circuit is working fine.but the problem is our water tank is kept at a height of 20-25 feet.the audibility of buzzer is upto 10 feet only.how can i improve the buzzer sound. please suggest me necessary changes to be made to this circuit ?
the best solution is to keep the sensor part only in the tank and rest of the circuit in some place where you can easily hear the alarm.Connect the both parts by using wires.That is what i have done.
which part of this ckt is sensor part?pls,reply me..thanks..
regards
give information on Water level alarm circuit project
how to make this suitable for multi level indicating . .
please give the parts related information and their cost
if you are not able to hear the buzzer sound, then put only the sensors in the tank and connect it with rest of the circuit via the pipes which bring water to your home ,if they are made up of metal.
The tank at my place is located at 60ft above. I live at ground level.I want to connect 2 copper wires from ground to tank. but can 3 volts battery be replaced with electrical power circuit. Thanks
Hi Patrick you can use 5amp house wiring wire 2 runs(1/18wire). You can use 5 volt power pack, which is standard these days for charging mobile phones.
sir i need a simple circuit daigram for my science project please help me within 15 aug please reply on my mail immidiately anyone please