EP0058824A3 - Method and apparatus for maintaining the alarm condition of a gas detector - Google Patents

Method and apparatus for maintaining the alarm condition of a gas detector Download PDF

Info

Publication number
EP0058824A3
EP0058824A3 EP82100437A EP82100437A EP0058824A3 EP 0058824 A3 EP0058824 A3 EP 0058824A3 EP 82100437 A EP82100437 A EP 82100437A EP 82100437 A EP82100437 A EP 82100437A EP 0058824 A3 EP0058824 A3 EP 0058824A3
Authority
EP
European Patent Office
Prior art keywords
maintaining
gas detector
alarm condition
alarm
detector
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.)
Granted
Application number
EP82100437A
Other languages
German (de)
Other versions
EP0058824A2 (en
EP0058824B1 (en
Inventor
Andreas Lemke
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.)
Auergesellschaft GmbH
Original Assignee
Auergesellschaft GmbH
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 Auergesellschaft GmbH filed Critical Auergesellschaft GmbH
Publication of EP0058824A2 publication Critical patent/EP0058824A2/en
Publication of EP0058824A3 publication Critical patent/EP0058824A3/en
Application granted granted Critical
Publication of EP0058824B1 publication Critical patent/EP0058824B1/en
Expired 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
    • G08B29/18—Prevention or correction of operating errors

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Alarm Systems (AREA)
  • Emergency Alarm Devices (AREA)
EP19820100437 1981-02-25 1982-01-22 Apparatus for maintaining the alarm condition of a gas detector Expired EP0058824B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19813107830 DE3107830A1 (en) 1981-02-25 1981-02-25 METHOD AND ARRANGEMENT FOR MAINTAINING THE ALARM OF A GAS DETECTOR
DE3107830 1981-02-25

Publications (3)

Publication Number Publication Date
EP0058824A2 EP0058824A2 (en) 1982-09-01
EP0058824A3 true EP0058824A3 (en) 1983-07-20
EP0058824B1 EP0058824B1 (en) 1986-04-30

Family

ID=6126120

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19820100437 Expired EP0058824B1 (en) 1981-02-25 1982-01-22 Apparatus for maintaining the alarm condition of a gas detector

Country Status (2)

Country Link
EP (1) EP0058824B1 (en)
DE (1) DE3107830A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4422859A (en) * 1982-05-24 1983-12-27 Consolidated Technology Corporation Apparatus and method for safely purifying hydrogen gas
EP0121048B1 (en) * 1983-03-04 1987-05-06 Cerberus Ag Circuit arrangement for the interference level control of detectors, arranged in a danger detection device
DE19850579C2 (en) * 1998-11-03 2001-09-13 Honeywell Sa Method for operating a transmitter

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2500759A1 (en) * 1974-10-02 1976-04-15 Cerberus Ag FIRE PROTECTION SYSTEM
US4007456A (en) * 1975-12-01 1977-02-08 Craftor Inc. Gas detecting and warning system
US4074243A (en) * 1976-06-18 1978-02-14 Erdco Engineering Corporation Anticipatory flammable gas detection system
DE2341087B2 (en) * 1973-08-14 1979-02-08 Siemens Ag, 1000 Berlin Und 8000 Muenchen Automatic fire alarm system
DE2822240A1 (en) * 1978-05-22 1979-12-06 Bbc Brown Boveri & Cie Central evaluation unit for fire or intruder detectors - raises line current following detector activation based on controlled current source (NL 26.11.79)
DE2833922A1 (en) * 1978-07-17 1980-02-07 Cerberus Ag GAS AND / OR FIRE DETECTING SYSTEM
US4219806A (en) * 1978-09-15 1980-08-26 American District Telegraph Company Dual alarm gas detector
US4267505A (en) * 1977-08-11 1981-05-12 The Horstmann Gear Company Limited Failure sensor for a gas detector

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3399398A (en) * 1965-07-27 1968-08-27 Mine Safety Appliances Co Combustible gas monitoring system
US3634839A (en) * 1968-03-11 1972-01-11 American District Telegraph Co Method and apparatus for suppressing spurious alarms in an electrical protection system
FI265273A (en) * 1973-08-24 1975-02-25 Stroemberg Oy Ab

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2341087B2 (en) * 1973-08-14 1979-02-08 Siemens Ag, 1000 Berlin Und 8000 Muenchen Automatic fire alarm system
DE2500759A1 (en) * 1974-10-02 1976-04-15 Cerberus Ag FIRE PROTECTION SYSTEM
US4007456A (en) * 1975-12-01 1977-02-08 Craftor Inc. Gas detecting and warning system
US4074243A (en) * 1976-06-18 1978-02-14 Erdco Engineering Corporation Anticipatory flammable gas detection system
US4267505A (en) * 1977-08-11 1981-05-12 The Horstmann Gear Company Limited Failure sensor for a gas detector
DE2822240A1 (en) * 1978-05-22 1979-12-06 Bbc Brown Boveri & Cie Central evaluation unit for fire or intruder detectors - raises line current following detector activation based on controlled current source (NL 26.11.79)
DE2833922A1 (en) * 1978-07-17 1980-02-07 Cerberus Ag GAS AND / OR FIRE DETECTING SYSTEM
US4219806A (en) * 1978-09-15 1980-08-26 American District Telegraph Company Dual alarm gas detector

Also Published As

Publication number Publication date
EP0058824A2 (en) 1982-09-01
EP0058824B1 (en) 1986-04-30
DE3107830A1 (en) 1982-09-09

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