JPH0128901B2 - - Google Patents

Info

Publication number
JPH0128901B2
JPH0128901B2 JP56021396A JP2139681A JPH0128901B2 JP H0128901 B2 JPH0128901 B2 JP H0128901B2 JP 56021396 A JP56021396 A JP 56021396A JP 2139681 A JP2139681 A JP 2139681A JP H0128901 B2 JPH0128901 B2 JP H0128901B2
Authority
JP
Japan
Prior art keywords
alarm circuit
gas sensor
alarm
voltage comparator
control element
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
JP56021396A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57136153A (en
Inventor
Kazuhito Koda
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.)
Maxell Ltd
Original Assignee
Hitachi Maxell 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 Maxell Ltd filed Critical Hitachi Maxell Ltd
Priority to JP56021396A priority Critical patent/JPS57136153A/ja
Publication of JPS57136153A publication Critical patent/JPS57136153A/ja
Publication of JPH0128901B2 publication Critical patent/JPH0128901B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0004—Gaseous mixtures, e.g. polluted air
    • G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
    • G01N33/007—Arrangements to check the analyser

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Medicinal Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Combustion & Propulsion (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Food Science & Technology (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Emergency Alarm Devices (AREA)
JP56021396A 1981-02-18 1981-02-18 Gas leakage warning device Granted JPS57136153A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56021396A JPS57136153A (en) 1981-02-18 1981-02-18 Gas leakage warning device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56021396A JPS57136153A (en) 1981-02-18 1981-02-18 Gas leakage warning device

Publications (2)

Publication Number Publication Date
JPS57136153A JPS57136153A (en) 1982-08-23
JPH0128901B2 true JPH0128901B2 (en]) 1989-06-06

Family

ID=12053891

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56021396A Granted JPS57136153A (en) 1981-02-18 1981-02-18 Gas leakage warning device

Country Status (1)

Country Link
JP (1) JPS57136153A (en])

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6119756U (ja) * 1984-07-11 1986-02-05 リンナイ株式会社 可燃性ガス検知装置
JPH067111B2 (ja) * 1986-03-01 1994-01-26 リコ−精器株式会社 ガス検出装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53114394A (en) * 1977-03-10 1978-10-05 Matsushita Electric Ind Co Ltd Detector for gas leakage

Also Published As

Publication number Publication date
JPS57136153A (en) 1982-08-23

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