JPH041394B2 - - Google Patents

Info

Publication number
JPH041394B2
JPH041394B2 JP58243193A JP24319383A JPH041394B2 JP H041394 B2 JPH041394 B2 JP H041394B2 JP 58243193 A JP58243193 A JP 58243193A JP 24319383 A JP24319383 A JP 24319383A JP H041394 B2 JPH041394 B2 JP H041394B2
Authority
JP
Japan
Prior art keywords
fire
level
circuit
calculation
alarm
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.)
Expired - Lifetime
Application number
JP58243193A
Other languages
English (en)
Japanese (ja)
Other versions
JPS60134999A (ja
Inventor
Eiji Matsushita
Tetsuya Nagashima
Sadataka Yuji
Akira Kitajima
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.)
Hochiki Corp
Original Assignee
Hochiki 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 Hochiki Corp filed Critical Hochiki Corp
Priority to JP24319383A priority Critical patent/JPS60134999A/ja
Publication of JPS60134999A publication Critical patent/JPS60134999A/ja
Publication of JPH041394B2 publication Critical patent/JPH041394B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Fire Alarms (AREA)
JP24319383A 1983-12-23 1983-12-23 火災報知装置 Granted JPS60134999A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP24319383A JPS60134999A (ja) 1983-12-23 1983-12-23 火災報知装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24319383A JPS60134999A (ja) 1983-12-23 1983-12-23 火災報知装置

Publications (2)

Publication Number Publication Date
JPS60134999A JPS60134999A (ja) 1985-07-18
JPH041394B2 true JPH041394B2 (pt) 1992-01-10

Family

ID=17100211

Family Applications (1)

Application Number Title Priority Date Filing Date
JP24319383A Granted JPS60134999A (ja) 1983-12-23 1983-12-23 火災報知装置

Country Status (1)

Country Link
JP (1) JPS60134999A (pt)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6115300A (ja) * 1984-06-29 1986-01-23 ホーチキ株式会社 火災警報装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5530794A (en) * 1978-05-01 1980-03-04 Anglo Amer Corp South Africa Method and apparatus for detecting ratio of signal variation
JPS5597690A (en) * 1978-09-15 1980-07-25 Anglo Amer Corp South Africa Alarm device and method of processing analog output signal from sensor
JPS59157789A (ja) * 1983-02-24 1984-09-07 ホーチキ株式会社 火災報知装置
JPS6011995A (ja) * 1983-07-01 1985-01-22 ホーチキ株式会社 火災報知装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5530794A (en) * 1978-05-01 1980-03-04 Anglo Amer Corp South Africa Method and apparatus for detecting ratio of signal variation
JPS5597690A (en) * 1978-09-15 1980-07-25 Anglo Amer Corp South Africa Alarm device and method of processing analog output signal from sensor
JPS59157789A (ja) * 1983-02-24 1984-09-07 ホーチキ株式会社 火災報知装置
JPS6011995A (ja) * 1983-07-01 1985-01-22 ホーチキ株式会社 火災報知装置

Also Published As

Publication number Publication date
JPS60134999A (ja) 1985-07-18

Similar Documents

Publication Publication Date Title
US4796205A (en) Fire alarm system
US4749987A (en) Analog fire detector and analog fire alarm system using the same
FI84765C (fi) Brandalarmssystem.
US4803469A (en) Fire alarm system
JPH0560639B2 (pt)
JPS6139194A (ja) 火災警報装置
JPS6254399A (ja) アナログ火災報知装置
JPH0441394B2 (pt)
EP0143976B1 (en) Fire detector equipped with sensor
JPH041394B2 (pt)
JPH0156439B2 (pt)
JPH041395B2 (pt)
JPH0610835B2 (ja) 火災感知器
JPH0218758B2 (pt)
JP2585906B2 (ja) 火災報知装置
JPH0444795B2 (pt)
JPH0381198B2 (pt)
JPS61237194A (ja) 火災報知装置
JPH0212398A (ja) 火災報知装置
JPS62295199A (ja) 感知器
JP2892402B2 (ja) 差動式火災警報装置
JPS641835B2 (pt)
JPS60192207A (ja) 防災用検出装置
JP2593170B2 (ja) 火災警報装置
JP2831655B2 (ja) 差動式火災警報装置