JPH0158558B2 - - Google Patents

Info

Publication number
JPH0158558B2
JPH0158558B2 JP57164966A JP16496682A JPH0158558B2 JP H0158558 B2 JPH0158558 B2 JP H0158558B2 JP 57164966 A JP57164966 A JP 57164966A JP 16496682 A JP16496682 A JP 16496682A JP H0158558 B2 JPH0158558 B2 JP H0158558B2
Authority
JP
Japan
Prior art keywords
output
sensor
analog
voltage
outputs
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
Application number
JP57164966A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5955600A (ja
Inventor
Takashi Suzuki
Tetsuo Kimura
Seiichi Tanaka
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.)
Nittan Co Ltd
Original Assignee
Nittan Co 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 Nittan Co Ltd filed Critical Nittan Co Ltd
Priority to JP57164966A priority Critical patent/JPS5955600A/ja
Priority to AU18767/83A priority patent/AU541029B2/en
Priority to GB08325145A priority patent/GB2128389B/en
Priority to US06/535,142 priority patent/US4575711A/en
Publication of JPS5955600A publication Critical patent/JPS5955600A/ja
Publication of JPH0158558B2 publication Critical patent/JPH0158558B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
    • G08B29/02—Monitoring continuously signalling or alarm systems
    • G08B29/04—Monitoring of the detection circuits
    • G08B29/043—Monitoring of the detection circuits of fire detection circuits
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/06—Electric actuation of the alarm, e.g. using a thermally-operated switch

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Alarm Systems (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Fire Alarms (AREA)
JP57164966A 1982-09-24 1982-09-24 警報端末装置 Granted JPS5955600A (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP57164966A JPS5955600A (ja) 1982-09-24 1982-09-24 警報端末装置
AU18767/83A AU541029B2 (en) 1982-09-24 1983-09-06 Alarm sensor monitor
GB08325145A GB2128389B (en) 1982-09-24 1983-09-20 Alarm terminal devices
US06/535,142 US4575711A (en) 1982-09-24 1983-09-23 Alarm terminal device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57164966A JPS5955600A (ja) 1982-09-24 1982-09-24 警報端末装置

Publications (2)

Publication Number Publication Date
JPS5955600A JPS5955600A (ja) 1984-03-30
JPH0158558B2 true JPH0158558B2 (OSRAM) 1989-12-12

Family

ID=15803252

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57164966A Granted JPS5955600A (ja) 1982-09-24 1982-09-24 警報端末装置

Country Status (4)

Country Link
US (1) US4575711A (OSRAM)
JP (1) JPS5955600A (OSRAM)
AU (1) AU541029B2 (OSRAM)
GB (1) GB2128389B (OSRAM)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6033011A (ja) * 1983-08-04 1985-02-20 Mitsutoyo Mfg Co Ltd 測定デ−タ合否判別装置
DE3583057D1 (de) * 1984-03-31 1991-07-11 Barmag Barmer Maschf Verfahren zur zentralen erfassung von messwerten einer vielzahl von messstellen.
DE3533523A1 (de) * 1984-09-22 1986-04-17 Sharp K.K., Osaka Ausfall-detektor
GB2177833B (en) * 1985-07-12 1989-07-26 Gerald Charles Dudley Window detector
DE3524886A1 (de) * 1985-07-12 1987-01-22 Vdo Schindling Messschaltungsanordnung fuer einen elektrischen messwertgeber
JPH0695357B2 (ja) * 1987-12-23 1994-11-24 松下電工株式会社 半導体式熱感知器
US5028144A (en) * 1989-08-08 1991-07-02 Klein Lawrence W Brake fluid testing device
US5200743A (en) * 1989-09-01 1993-04-06 Bently Nevada Multiple remote sensor system for real time analog sensing and differential cummunication
US5095274A (en) * 1989-09-22 1992-03-10 Analog Devices, Inc. Temperature-compensated apparatus for monitoring current having controlled sensitivity to supply voltage
US5347224A (en) * 1992-02-26 1994-09-13 Analog Devices, Inc. Current monitoring circuit having controlled sensitivity to temperature and supply voltage
EP0646791B1 (en) * 1993-09-30 2001-09-05 Nittan Company, Limited Sensor device, and electronic equipment each having sensor device incorporated therein
US6002338A (en) * 1997-09-15 1999-12-14 Ford Global Technologies, Inc. Method and system for detecting failures in self-exciting sensor
US6351212B1 (en) 1998-01-28 2002-02-26 Adam Q. Lynch System for monitoring operability of fire event sensors
US6081195A (en) * 1999-01-27 2000-06-27 Lynch; Adam Q. System for monitoring operability of fire event sensors
US6229439B1 (en) 1998-07-22 2001-05-08 Pittway Corporation System and method of filtering
US6222456B1 (en) 1998-10-01 2001-04-24 Pittway Corporation Detector with variable sample rate

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4282517A (en) * 1977-12-09 1981-08-04 Potter Electric Signal Company Automatic ringback for direct current monitoring system
US4414539A (en) * 1978-12-22 1983-11-08 The Boeing Company Built-in passive fault detection circuitry for an aircraft's electrical/electronic systems
US4394655A (en) * 1981-03-13 1983-07-19 Baker Industries, Inc. Bidirectional, interactive fire detection system
US4352087A (en) * 1981-04-22 1982-09-28 Marie C. Kercheval Fume detector and alarm system

Also Published As

Publication number Publication date
AU541029B2 (en) 1984-12-13
GB8325145D0 (en) 1983-10-19
JPS5955600A (ja) 1984-03-30
GB2128389A (en) 1984-04-26
AU1876783A (en) 1984-03-29
US4575711A (en) 1986-03-11
GB2128389B (en) 1987-02-04

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