Water level alarm circuit
Description.
Here is a simple water level alarm circuit using 555 timer 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.
i need a brife information about “Water level alarm” .Its introduction,circuit diagram,procedure,function,merits & de-merits and its conclusion…Plz reply
me as soon as possible,plz plz plz……….
i dont have any . sorry ……
i too am finding……
can u plz send me whole process
we r tryng it ……………..
tell me the procedure details briefly
hey buzzer is not available ,can i use an LED instead ? plzzz help ASAP
Can u mail me full description on this project..?….plz
give me full specification and the cost of that project.water level alarm ckt.
ala doba shu kare 6??
Why you are using 555 timer?
Can simple circuit is use (1 resistor,capacitor,battery,buzzer)?
Is the various type of buzzer is sell? & according to which type?
please tell & guide me
I used my mobile bettery 3.7volt.
anyone send me report of this circuit plz plz……
i make this project and the buzzer give output tet tet…:p
How to buy PCB board for this circuit.plz advise
i have used 5V power supply.. the circuit works.. have tested it using led in place of buzzer.. but d buzzer is not producing any sound.. can u please help;.. whats is wrong with d buzzer and how to make it work?
Hi,
Which buzzer can be used for this circuit i mean K1 buzzer. Please let me know the specification of it.
a nice mini project
well done priyanka for posting this
luv u
It workssssssssssss…………..
thanks!!!!!!!!!!!!!!!!!!
can we use 12 volts battery and can get an output of 12 volts at the time of circuit activation , i want to use sounder of 12 volts at activation of circuit.
Hi
Is there may be any problem if I use above circuit with 9volt battery if so what are the changes required? I have already implemented this circuit for my home over head water tank. It is working fine but the loudness of the buzzer is poor as the water tank and the circuit having distance almost 60 feet. Also I would not like to change the battery frequently what is the solution for that.
Regards
this circuit is not working guys plz give me some sugessions to work
i need complete details regarding this i need how to make water level indicator.it`s very helpful for students.plllllllllllllz do that
when the supply is given,the buzzer starts beeping.even when the probes arent in the water.!!!can u please give the solution for this.i also needed the design for this circuit.so can u please mail it to me?
the wire which is connected to buzzer is if short then the buzzer is beeping. check it..
I want the detailed explantn abt this and i liked it and i need it urgently!!!!!plz do it as soon as possible
sir,
u give me a using compudent.onents…….in my id ok……i wait…i am iiet st
this ckt is fail in working coz when v give supply d buzzer starts buzzing with out touching d probes in water
aby solution plz tell me
send me details to my mail id
The description is too short i think…Can you give it little bit elaborate…
with c1=2.2uF , R1=1k and R2=100k as shown in the circuit the buzzer does not and cannot work ! c1 must be 2,2 or 22 nF. I wonder why no one realized this….
how it is apllicable
hi!This circuit will work only when the water level is upto the probes rite..can we modify ths circuit by making it beep both the times when the water is at 1/4th level and when it is full.So that it will be easy for me to on and off the switch.plz reply ..
setup ha
hi frnds pls give me idea to do this. by using bread board haaaa….
I use this to my project…I hope that it work properly..
its working good
this project works!guys need some help what buzzer should i use?i tried to conect it to an alarm clk coz i dont have any buzzer but the prob is the alarm clk keeps on sounding even theres no contact in the probes.
@ Deepesh Shah Connect a 0.01uF capacitor between pin 5 and ground (-ve of the battery )
mail me any latest news or innovation on circuit
In this circuit where pin no.5 is not shown. So to run the circuit where it should be connected.
Hi Seetharaman, yr Idea has been of great help for 15 days.
Now the ends of the wire that I dipped in the Water tank have
sulphated and do not conduct. After every 20-25 days I need to
clean the ends of the wire in the water tank. Pls suggest some other sensors which need no cleaning.
Thanks
Hi Hafeez pin no5 is not used and not required for this application.
wr is pin numbr 5 in ic pls tell me i want to do it in 2hr nw
Hi Bijay 2.7 to 12 volt music generator modules are available you can use one of them.
Thanks to seetharaman, the project is completed i have connect the 3-24v buzzer its not working, then to test the alarm i connect a 3v bulb in place of buzzer. i notice that the light is flashing ( is it ok flashing of bulb). can u suggest what kind of buzzer should i purchase,
Hi Bijay you cxan use resistance in any direction as they have no polarity like diodes and electrolytic capacitors. regarding NE555 pin connection refer following document in the out line it is shown clearly in the numbers will increase in anticlockwise direction as you view from the IC identity – screen printed / engraved side.
http://www.fairchildsemi.com/ds/LM/LM555.pdf
Seetharaman thanks for the help.
just now i purchased everything,, i m new to electronics, don’t have any background in electronics, just for hobbies im doing this project,
pl help i m confused regarding the IC555 terminal, in diagrams it showing 1.2.3.4.5….8 how to locate the nos in IC
pl help. and 1 more thing can solder resister in any direction,
Regards
Hi Bijay normal mobile chargers voltage lies between 5 to 7 volt can be directly used as the IC can operate up to 15 volts.
hi all. instead of 3v batteries, i would like use transformer of 3volts. pl let me know how to built that 3volt AC-to DC, can i use mobile phone charger for that..
Hiiiiiiiiiiiiii friends this ckt is working try this
Where is the parts list
Hi Neenoo it is 3volt DC. you can use a single lithium battery 123 or 2nos 1.5 volt cells in series. i think ac batteries are yet to be invented.
ia it an AC BATTERY OF 3V OR A DC BATTERY?
it helped our student to get some ideas for the science exhibition that is taking place in our school…. thanks a lot…. please mail me/…
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
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.
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
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.
please give the parts related information and their cost
how to make this suitable for multi level indicating . .
give information on Water level alarm circuit project
which part of this ckt is sensor part?pls,reply me..thanks..
regards
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.
mail me any latest news or innovation on circuit
mail me any latest news or innovation on circuit
yes o