JPH0139160B2 - - Google Patents

Info

Publication number
JPH0139160B2
JPH0139160B2 JP56071049A JP7104981A JPH0139160B2 JP H0139160 B2 JPH0139160 B2 JP H0139160B2 JP 56071049 A JP56071049 A JP 56071049A JP 7104981 A JP7104981 A JP 7104981A JP H0139160 B2 JPH0139160 B2 JP H0139160B2
Authority
JP
Japan
Prior art keywords
gas leak
leak alarm
pulse signal
line
terminal
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
JP56071049A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57187800A (en
Inventor
Kazuhiro Kato
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.)
Ricoh Elemex Corp
Original Assignee
Ricoh Elemex 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 Ricoh Elemex Corp filed Critical Ricoh Elemex Corp
Priority to JP56071049A priority Critical patent/JPS57187800A/ja
Publication of JPS57187800A publication Critical patent/JPS57187800A/ja
Publication of JPH0139160B2 publication Critical patent/JPH0139160B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Alarm Systems (AREA)
  • Small-Scale Networks (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
JP56071049A 1981-05-12 1981-05-12 Centralized monitor system for gas leakage Granted JPS57187800A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56071049A JPS57187800A (en) 1981-05-12 1981-05-12 Centralized monitor system for gas leakage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56071049A JPS57187800A (en) 1981-05-12 1981-05-12 Centralized monitor system for gas leakage

Publications (2)

Publication Number Publication Date
JPS57187800A JPS57187800A (en) 1982-11-18
JPH0139160B2 true JPH0139160B2 (ko) 1989-08-18

Family

ID=13449273

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56071049A Granted JPS57187800A (en) 1981-05-12 1981-05-12 Centralized monitor system for gas leakage

Country Status (1)

Country Link
JP (1) JPS57187800A (ko)

Also Published As

Publication number Publication date
JPS57187800A (en) 1982-11-18

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