JPS5389698A - Alarm apparatus - Google Patents

Alarm apparatus

Info

Publication number
JPS5389698A
JPS5389698A JP390977A JP390977A JPS5389698A JP S5389698 A JPS5389698 A JP S5389698A JP 390977 A JP390977 A JP 390977A JP 390977 A JP390977 A JP 390977A JP S5389698 A JPS5389698 A JP S5389698A
Authority
JP
Japan
Prior art keywords
input signals
alarm apparatus
alarm
caution
troubles
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
JP390977A
Other languages
Japanese (ja)
Inventor
Masayuki Miki
Nobuaki Miyagawa
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP390977A priority Critical patent/JPS5389698A/en
Publication of JPS5389698A publication Critical patent/JPS5389698A/en
Pending legal-status Critical Current

Links

Landscapes

  • Emergency Alarm Devices (AREA)

Abstract

PURPOSE: To discover troubles in an early time and improve safety by classifying input signals in three stages of safe, caution, danger regions, detecting the input signals in this way, and giving an alarm.
COPYRIGHT: (C)1978,JPO&Japio
JP390977A 1977-01-19 1977-01-19 Alarm apparatus Pending JPS5389698A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP390977A JPS5389698A (en) 1977-01-19 1977-01-19 Alarm apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP390977A JPS5389698A (en) 1977-01-19 1977-01-19 Alarm apparatus

Publications (1)

Publication Number Publication Date
JPS5389698A true JPS5389698A (en) 1978-08-07

Family

ID=11570303

Family Applications (1)

Application Number Title Priority Date Filing Date
JP390977A Pending JPS5389698A (en) 1977-01-19 1977-01-19 Alarm apparatus

Country Status (1)

Country Link
JP (1) JPS5389698A (en)

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