DE2500435A1 - Feuerdetektor - Google Patents

Feuerdetektor

Info

Publication number
DE2500435A1
DE2500435A1 DE19752500435 DE2500435A DE2500435A1 DE 2500435 A1 DE2500435 A1 DE 2500435A1 DE 19752500435 DE19752500435 DE 19752500435 DE 2500435 A DE2500435 A DE 2500435A DE 2500435 A1 DE2500435 A1 DE 2500435A1
Authority
DE
Germany
Prior art keywords
voltage
reference potential
signal voltage
detector arrangement
sensor
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
DE19752500435
Other languages
German (de)
English (en)
Inventor
Frederick Jerome Conforti
Wilbur Lee Ogden
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.)
Pittway Corp
Original Assignee
Pittway 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 Pittway Corp filed Critical Pittway Corp
Publication of DE2500435A1 publication Critical patent/DE2500435A1/de
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL 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
    • G08B29/181—Prevention or correction of operating errors due to failing power supply
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
    • G08B17/11—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using an ionisation chamber for detecting smoke or gas
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Fire Alarms (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
  • Alarm Systems (AREA)
DE19752500435 1974-01-07 1975-01-07 Feuerdetektor Pending DE2500435A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US43113774A 1974-01-07 1974-01-07

Publications (1)

Publication Number Publication Date
DE2500435A1 true DE2500435A1 (de) 1975-07-17

Family

ID=23710644

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19752500435 Pending DE2500435A1 (de) 1974-01-07 1975-01-07 Feuerdetektor

Country Status (5)

Country Link
JP (1) JPS5726398B2 (https=)
DE (1) DE2500435A1 (https=)
FR (1) FR2257119B3 (https=)
GB (1) GB1499581A (https=)
IT (1) IT1023231B (https=)

Also Published As

Publication number Publication date
FR2257119B3 (https=) 1977-07-22
JPS5726398B2 (https=) 1982-06-04
FR2257119A1 (https=) 1975-08-01
IT1023231B (it) 1978-05-10
GB1499581A (en) 1978-02-01
JPS50103300A (https=) 1975-08-15

Similar Documents

Publication Publication Date Title
DE2117875C3 (de) Vorrichtung zur Bestimmung der Gerinnungszeit von Blutplasma
DE69226277T2 (de) Fail-safe fuehlerschaltung
DE2903041C2 (de) Meldevorrichtung zur Überwachung des Auftretens von zu meldenden Ereignissen
DE2204718C3 (de) Flammendetektor
DE3906886A1 (de) Laststeuereinrichtung
DE2604673A1 (de) Feuerdetektor
DE2151290A1 (de) UEberwachungsgeraet fuer eine laufende Werkstoffbahn
DE3045441C2 (de) Klopferfassungseinrichtung für Brennkraftmaschinen
DE2406289C2 (de) Verstärker mit einer Überlastanzeige- und/oder Überlastschutz-Schaltung
DE2710834C2 (de) Einbruch-Alarmsystem
DE2923119A1 (de) Detektor fuer feuer, rauch o.dgl.
DE2515086A1 (de) Vorrichtung zum ueberwachen der gehirntaetigkeit
DE2653803A1 (de) Detektorschaltung
DE2825792C2 (de) Elektronische Vorrichtung zur Kontrolle der Funktion eines elektronischen Garnreinigers
DE1766314A1 (de) Frequenzmessgeraet zur Anzeige von Momentanwerten der Frequenz einer Impulsreihe,insbesondere fuer medizinische Zwecke
DE2604753A1 (de) Hochimpedanz-schaltkreisanordnung mit ionisationsrauchsensoren
DE4119917A1 (de) Ueberstromdetektoreinrichtung
DE102004043455A1 (de) Methode zur Diagnose einer offenen Sekundärwicklung einer Zündspule mit Hilfe des Signals für den Ionisations-Strom
DE2500435A1 (de) Feuerdetektor
DE2236864A1 (de) Schaltungsanordnung zum messen des wertes eines vorgegebenen parameters eines eingangssignals
DE2528764A1 (de) Schaltungsanordnung zur ueberwachung von feuermeldern
DE2738198A1 (de) Vorrichtung zur erfassung der aenderung einer gewaehlten bedingung
EP0079010A1 (de) Rauchdetektor
DE2937686A1 (de) Kombinationsdetektor
EP0098326B1 (de) Schaltungsanordnung für eine Gefahrenmeldeanlage

Legal Events

Date Code Title Description
OHJ Non-payment of the annual fee