LPG Gas Leakage Sensor Alarm Circuit

LPG Gas Leakage Sensor Alarm Circuit

LPG Gas Leakage Sensor Alarm Circuit

This circuit has been tested with LPG gas and was observed to do the job satisfactorily.

Whenever there’s LPG concentration of 1000 ppm (parts per million) in the spot, the OUT pin of the sensor module goes higher. This signal drives timer IC 555, that is wired as an astable multivibrator. The multivibrator generally works as a tone generator.

This schematic diagram come from circuit: LPG Gas Leakage Sensor Alarm.
Go to that page to read the explanation about above circuit design.

In the electrical sector, a schematic diagram is usually used to describe the design or model of equipment. Schematic diagrams are usually utilized for the maintenance and repair of electronic and electromechanical devices / units. Original schematics were made by hand, using standardized templates or pre-printed adhesive symbols, but nowadays Electrical CAD computer software is often used.

In electronic design automation, until the 1980s schematics were virtually the only formal representation for circuits. More lately, using the progress of computer system technology, other representations were introduced and specialized computer languages were developed, because with the explosive development of the complexity of electronic circuits, classic schematics are getting less practical. As an example, hardware description languages are indispensable for contemporary digital circuit design.

One thought on “LPG Gas Leakage Sensor Alarm Circuit

  1. HITESH MISTRY

    I WOULD LIKE TO NOW THE COMPANY WHO IS MANUFACTUING THE LPG DETECTOR AND ALARM SYSTEM IN INDIA AND ALSO TO STOP THE FLOW OF GAS.

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