GAS LEAKAGE ALARM, CONTROL DEVICE FOR THE SAME AND PROGRAM

GAS LEAKAGE ALARM, CONTROL DEVICE FOR THE SAME AND PROGRAM

PROBLEM TO BE SOLVED: To early start a test by allowing release of an initial sounding prevention mode in proper timing based on actual sensor output.SOLUTION: A gas leakage alarm compares the occasionally obtained sensor output and a prescribed second threshold value (an initial sounding prevention...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: MASUYAMA TAKESHI, SASAKI SHOJI, KAMIOKA TAKESHI, WATANABE TADASHI
Format: Patent
Sprache:eng
Schlagworte:
ALARM SYSTEMS
BLASTING
COMBUSTION APPARATUS
COMBUSTION PROCESSES
HEATING
LIGHTING
MECHANICAL ENGINEERING
ORDER TELEGRAPHS
PHYSICS
REGULATING OR CONTROLLING COMBUSTION
SIGNALLING
SIGNALLING OR CALLING SYSTEMS
WEAPONS
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Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To early start a test by allowing release of an initial sounding prevention mode in proper timing based on actual sensor output.SOLUTION: A gas leakage alarm compares the occasionally obtained sensor output and a prescribed second threshold value (an initial sounding prevention release level), and when the sensor output exceeds the second threshold value (step S13, YES), releases the initial sounding prevention mode and transfers to a normal mode (step S14). Until a prescribed time (20 seconds) lapses after power supply, the gas leakage alarm does not perform decision in the step S13.