JPS58179584U - gas leak alarm - Google Patents
gas leak alarmInfo
- Publication number
- JPS58179584U JPS58179584U JP7277882U JP7277882U JPS58179584U JP S58179584 U JPS58179584 U JP S58179584U JP 7277882 U JP7277882 U JP 7277882U JP 7277882 U JP7277882 U JP 7277882U JP S58179584 U JPS58179584 U JP S58179584U
- Authority
- JP
- Japan
- Prior art keywords
- comparator
- output
- bridge circuit
- circuit
- gas leak
- 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
Links
Landscapes
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Emergency Alarm Devices (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
図面は本考案によるガスもれ警報器の一実施例を示す電
気回路図であ乞。
１・・・ガスセンサ、２・・・補償素子、３． ４．
５・・・比較器、６． ７． ８・・・可変抵抗器、１
２・・・基準電圧源、１４・・・発振回路、１５・・・
ブザー。The drawing is an electrical circuit diagram showing one embodiment of the gas leak alarm according to the present invention. 1... Gas sensor, 2... Compensation element, 3. 4.
5... Comparator, 6. 7. 8...variable resistor, 1
2... Reference voltage source, 14... Oscillation circuit, 15...
buzzer.
Claims (1)
ッジ回路の出力に接続された比較器と、この比較器の出
力によって動作する警報器とを備えたガスもれ警報器に
おいそ、前記ブリッジ回路に直列に接続されそそのブリ
ッジ回路に流れる電−流量を変化させる切換回路と、ブ
リッジ回路の出力に接続されて検出さｉたガスの濃度が
予め定めた高い値に達した時前詰電流量を減少させるよ
う前記切換回路を作動させる比較器とを含む高濃度保護
回路、および前記ブリッジ回路の出力に接続されてブリ
ッジ回路の平衡出力が予め定めた値ま□で感度鈍感な方
向へゼロドリフトした時を検出してたとえば前記警報器
を作動させる比較器を含む劣化表示回路を備えたことを
特徴とするガスもれ警報器。 ゛A gas leak alarm includes a bridge circuit including a catalytic combustion type gas sensor, a comparator connected to the output of this bridge circuit, and an alarm operated by the output of this comparator. A switching circuit is connected to the output of the bridge circuit to change the amount of current flowing through the bridge circuit, and a switching circuit is connected to the output of the bridge circuit to reduce the amount of prefill current when the concentration of the detected gas reaches a predetermined high value. a high concentration protection circuit including a comparator for activating the switching circuit so as to cause the switching circuit to become insensitive; A gas leak alarm comprising a deterioration display circuit including a comparator that detects and activates the alarm.゛
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7277882U JPS58179584U (en) | 1982-05-20 | 1982-05-20 | gas leak alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7277882U JPS58179584U (en) | 1982-05-20 | 1982-05-20 | gas leak alarm |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58179584U true JPS58179584U (en) | 1983-12-01 |
| JPH0241741Y2 JPH0241741Y2 (en) | 1990-11-07 |
Family
ID=30082322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7277882U Granted JPS58179584U (en) | 1982-05-20 | 1982-05-20 | gas leak alarm |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58179584U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5303196B2 (en) * | 2008-06-10 | 2013-10-02 | 矢崎総業株式会社 | Gas detector and aging correction method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52150390U (en) * | 1976-05-11 | 1977-11-15 | ||
| JPS5433185U (en) * | 1977-08-09 | 1979-03-05 | ||
| JPS56130646A (en) * | 1980-03-19 | 1981-10-13 | Matsushita Electric Ind Co Ltd | Alarm equipment for gas leakage |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT951304B (en) * | 1972-04-11 | 1973-06-30 | Rimoldi V E C Spa | OCN SEWING MACHINE UPPER ROTEL WORK CONVEYOR THE ADJUSTABLE INDEPENDENTLY FROM THE LOWER JAW CONVEYOR |
-
1982
- 1982-05-20 JP JP7277882U patent/JPS58179584U/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52150390U (en) * | 1976-05-11 | 1977-11-15 | ||
| JPS5433185U (en) * | 1977-08-09 | 1979-03-05 | ||
| JPS56130646A (en) * | 1980-03-19 | 1981-10-13 | Matsushita Electric Ind Co Ltd | Alarm equipment for gas leakage |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0241741Y2 (en) | 1990-11-07 |
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