The gas leakage alarm circuit operates off a 9V PP3 battery.
Zener diode ZD1 is used to convert 9V into 5V DC to drive the
gas sensor module. A preset in the module is used to set the
threshold. Interfacing with the sensor module is done through a
4-pin SIP header.
Whenever there is LPG concentration of 1000 ppm in the
area, the OUT pin of the sensor module goes high. This signal
drives timer IC 555, which is wired as an astable multivibrator.
The multivibrator basically works as a tone generator.
Output pin 3 of IC 555 is connected ....etc

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To get full information or details of major project of gas leakage detection auto on off gas system circuit diagram ppt please have a look on the pages

http://nieclko.acdocs/LGEC005_LPG_GAS_Leakage_detection_for_cars%5B1%5D.pdf

if you again feel trouble on major project of gas leakage detection auto on off gas system circuit diagram ppt please reply in that page and ask specific fields in major project of gas leakage detection auto on off gas system circuit diagram ppt ....etc

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To get full information or details of plc based gas leakage detection and auto dialing please have a look on the pages

http://seminarsprojects.net/Thread-gas-leakage-detection-and-autodialing

if you again feel trouble on plc based gas leakage detection and auto dialing please reply in that page and ask specific fields in plc based gas leakage detection and auto dialing ....etc

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i want automatic fier leakage to stop by a motorfire accidents that is contrlled by a motor with sensor ....etc

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to get information about the topic Microcontroller Based Gas leakage detection and auto dialing full report ppt and related topic refer the page link bellow

http://seminarsprojects.net/Thread-gas-leakage-detection-and-autodialing ....etc

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discription ,block diagram,application,advantages,disadvantages ....etc

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to get information about the topic Microcontroller Based Gas leakage detection and auto dialing full report ppt and related topic refer the page link bellow

http://seminarsprojects.net/Thread-gas-leakage-detection-and-autodialing ....etc

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gas leakage alarm ppt

LPG gas is supplied in pressurized steel cylinders. As this gas is heavier than air, when it leaks from a cylinder it flows along floor and tends to settle in low spots such as a basement. This can cause fire or suffocation if not dealt with. Here is a circuit that detects the leakage of LPG gas and alerts the user through audio-visual indications.This LPG Gas Sensor (MQ6), ideal sensor for use to detect the presence of a dangerous Liquefied petroleum gas (LPG) and it has high sensitivity to propane, butane, isobutene, na ....etc

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please, i want circuit diagram,block diagram,functions of each component on the diagram,descriptions or details of the project on gas leakage detector and auto dialing controller system.Thanks. ....etc

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Ideal gas sensor is used to detect the presence of a dangerous LPG gas leak in storage tank environment. This unit can be easily incorporated into an alarm unit, to sound an alarm or give a visual indication of the LPG concentration.

If the LPG sensor senses any gas leakage from storage the output of this sensor goes low . This low signal is monitored by the microcontroller and it will identify the gas leakage. Now the microcontroller is turn to Buzzer.

After few milliseconds delay, it also turn on exhaust fan for throwing gas ....etc

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