JPS6437696A - Alarm device - Google Patents

Alarm device

Info

Publication number
JPS6437696A
JPS6437696A JP19365287A JP19365287A JPS6437696A JP S6437696 A JPS6437696 A JP S6437696A JP 19365287 A JP19365287 A JP 19365287A JP 19365287 A JP19365287 A JP 19365287A JP S6437696 A JPS6437696 A JP S6437696A
Authority
JP
Japan
Prior art keywords
battery
voltage
inverter
test
built
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP19365287A
Other languages
Japanese (ja)
Inventor
Teruaki Kimura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toshiba Corp filed Critical Toshiba Corp
Priority to JP19365287A priority Critical patent/JPS6437696A/en
Publication of JPS6437696A publication Critical patent/JPS6437696A/en
Pending legal-status Critical Current

Links

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  • Alarm Systems (AREA)

Abstract

PURPOSE:To extend the service life of a built-in battery without using the built-in battery for testing informing means by supplying power from an external circuit to test the informing means for informing the generation of an abnormal state. CONSTITUTION:When a common terminal C of a battery switch 9 is connected to a normally-opened terminal NO, the voltage of a battery 45 is divided by a voltage dividing circuit consisting of resistors 46, 47 through the battery test switch 9 and the divided voltage is supplied to a battery voltage checking inverter 48. When the voltage of the battery 45 is more than a regulated voltage, the output of an inverter 48 is reduced to a lower level, so that a battery test LED 50 is turned on. When the voltage of the battery 45 is less than the regulated voltage, the output of the inverter 48 is kept at a high level and the LED 50 is not turned on. Consequently, the drop of the voltage of the battery 45 can be decided.
JP19365287A 1987-08-04 1987-08-04 Alarm device Pending JPS6437696A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19365287A JPS6437696A (en) 1987-08-04 1987-08-04 Alarm device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19365287A JPS6437696A (en) 1987-08-04 1987-08-04 Alarm device

Publications (1)

Publication Number Publication Date
JPS6437696A true JPS6437696A (en) 1989-02-08

Family

ID=16311507

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19365287A Pending JPS6437696A (en) 1987-08-04 1987-08-04 Alarm device

Country Status (1)

Country Link
JP (1) JPS6437696A (en)

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