JPS6092388U - 2-sensitivity smoke detector - Google Patents
2-sensitivity smoke detectorInfo
- Publication number
- JPS6092388U JPS6092388U JP18391283U JP18391283U JPS6092388U JP S6092388 U JPS6092388 U JP S6092388U JP 18391283 U JP18391283 U JP 18391283U JP 18391283 U JP18391283 U JP 18391283U JP S6092388 U JPS6092388 U JP S6092388U
- Authority
- JP
- Japan
- Prior art keywords
- sensitivity
- detection
- smoke
- smoke detector
- detection sensitivity
- 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
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
第１図は本考案の一実施例を示す回路図、第２図は第１
図における各部の波形を示した波形図である。
１：定電圧電源、２：発振回路、３，７，８：インバー
タ、４：比較回路、５，６：Ｆ／Ｆ回路、９：ＮＯＲ回
路、１０：感度切換回路、Ｐｌ、Ｒ２，Ｒ４，Ｒ５，Ｒ
６，Ｒ７：端子、Ｓｌ、Ｓ２：サイリスタ、Ｒ１，・・
・Ｒ１６：抵抗、ＤＩ、・・・Ｄ６：ダイオード、Ｒ■
：可変抵抗器、ＰＨ１：発光素子、ＰＨ２：受光素子、
０１〜ｃ３：コンデンサ、ＴＲ：トランジスタ。
、Ｆ（ＤＴ２） −ｍ−」ｉ Ｌ二」−Ｇ （Ｑ２）
−■−一」暫−−−一−
」Ｌ−一」 Ｌ−一→＝ＩＬ−−− 〜−［］
一一一一一一−Ｈ−二〕可：１１
１
：
阿■−１−■−訃１■■■■■■−
一」−一Fig. 1 is a circuit diagram showing one embodiment of the present invention, and Fig. 2 is a circuit diagram showing an embodiment of the present invention.
FIG. 3 is a waveform diagram showing waveforms at various parts in the figure. 1: Constant voltage power supply, 2: Oscillation circuit, 3, 7, 8: Inverter, 4: Comparison circuit, 5, 6: F/F circuit, 9: NOR circuit, 10: Sensitivity switching circuit, Pl, R2, R4, R5,R
6, R7: terminal, Sl, S2: thyristor, R1,...
・R16: Resistor, DI,...D6: Diode, R■
: variable resistor, PH1: light emitting element, PH2: light receiving element,
01-c3: capacitor, TR: transistor. , F(DT2) -m-"i L2"-G (Q2)
-■-1" Temporary---1- "L-1" L-1→=IL--- ~-[] 111111-H-2] Possible: 11 1: A■-1- ■−December 1■■■■■■− 1”−1
Claims (1)
する検出部と、平常時に前記検出部に第１の検出感度を
設定し、該第１の検出感度による煙検出信号が得られた
ときに前記検出部に該第１の検出感度と異なる第２の検
出感度を設定する感度切換手段とを備えた２感度煙感知
器において、第１ｂ煙濃度検出信号の送出時から所定時
間の間だけ第２の煙濃度検出信号の送出を阻止する阻止
回路を設けたことを特徴とする２感度型煙惑知１ 器
。A detection unit that outputs a smoke detection signal when smoke generated by a fire is detected, and a first detection sensitivity set in the detection unit during normal times, and when a smoke detection signal based on the first detection sensitivity is obtained. In the dual-sensitivity smoke detector, the detection section is provided with a sensitivity switching means for setting a second detection sensitivity different from the first detection sensitivity, and the second detection sensitivity is set to a second detection sensitivity different from the first detection sensitivity. 1. A dual-sensitivity type smoke detector, characterized in that it is provided with a blocking circuit that prevents the transmission of the smoke concentration detection signal of 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18391283U JPS6092388U (en) | 1983-11-29 | 1983-11-29 | 2-sensitivity smoke detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18391283U JPS6092388U (en) | 1983-11-29 | 1983-11-29 | 2-sensitivity smoke detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6092388U true JPS6092388U (en) | 1985-06-24 |
| JPS6349824Y2 JPS6349824Y2 (en) | 1988-12-21 |
Family
ID=30397914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18391283U Granted JPS6092388U (en) | 1983-11-29 | 1983-11-29 | 2-sensitivity smoke detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6092388U (en) |
-
1983
- 1983-11-29 JP JP18391283U patent/JPS6092388U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6349824Y2 (en) | 1988-12-21 |
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