JPH021661Y2 - - Google Patents
Info
- Publication number
- JPH021661Y2 JPH021661Y2 JP1983117659U JP11765983U JPH021661Y2 JP H021661 Y2 JPH021661 Y2 JP H021661Y2 JP 1983117659 U JP1983117659 U JP 1983117659U JP 11765983 U JP11765983 U JP 11765983U JP H021661 Y2 JPH021661 Y2 JP H021661Y2
- Authority
- JP
- Japan
- Prior art keywords
- test
- fire
- fire detector
- voltage
- analog
- 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
Links
- 238000012360 testing method Methods 0.000 claims description 115
- 238000001514 detection method Methods 0.000 claims description 36
- 239000000779 smoke Substances 0.000 description 30
- 230000035945 sensitivity Effects 0.000 description 14
- 230000007423 decrease Effects 0.000 description 6
- 230000006870 function Effects 0.000 description 5
- 238000012544 monitoring process Methods 0.000 description 5
- 230000005856 abnormality Effects 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- 230000005855 radiation Effects 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- 230000007774 longterm Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 101150015217 FET4 gene Proteins 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
Landscapes
- Fire-Detection Mechanisms (AREA)
- Alarm Systems (AREA)
- Fire Alarms (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11765983U JPS6025091U (ja) | 1983-07-28 | 1983-07-28 | 火災報知設備 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11765983U JPS6025091U (ja) | 1983-07-28 | 1983-07-28 | 火災報知設備 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6025091U JPS6025091U (ja) | 1985-02-20 |
| JPH021661Y2 true JPH021661Y2 (de) | 1990-01-16 |
Family
ID=30270758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11765983U Granted JPS6025091U (ja) | 1983-07-28 | 1983-07-28 | 火災報知設備 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6025091U (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0720505B2 (ja) * | 1987-02-04 | 1995-03-08 | 能美防災株式会社 | 防災設備の試験装置 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS577112Y2 (de) * | 1972-09-29 | 1982-02-10 |
-
1983
- 1983-07-28 JP JP11765983U patent/JPS6025091U/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6025091U (ja) | 1985-02-20 |
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