JPS54135556A - Clogging time announcing device of filters - Google Patents
Clogging time announcing device of filtersInfo
- Publication number
- JPS54135556A JPS54135556A JP4343378A JP4343378A JPS54135556A JP S54135556 A JPS54135556 A JP S54135556A JP 4343378 A JP4343378 A JP 4343378A JP 4343378 A JP4343378 A JP 4343378A JP S54135556 A JPS54135556 A JP S54135556A
- Authority
- JP
- Japan
- Prior art keywords
- time
- counter
- clogging
- filter
- clear
- 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
- Emergency Alarm Devices (AREA)
- Measurement Of Predetermined Time Intervals (AREA)
- Measurement Of Unknown Time Intervals (AREA)
- Time Recorders, Dirve Recorders, Access Control (AREA)
- Air Conditioning Control Device (AREA)
Abstract
PURPOSE: To accurately announce clogging time by counting the operation time of the main unit of an air conditioner with a digital counter, announcing the clogging of filter when the specified time is reached, generating a clear signal and clearing counter contents.
CONSTITUTION: In response to the operation of a remote controlled operation start indication key SW, SW1 goes ON to generate the clock signals for counting from a pulse generating part 18. A counter IC2 subsequently counts the clock signals and keeps integrating the operation time as far as the conditioner is being operated. When the count value thereof reaches the specified number, i.e., predetermined clogging time, its output Q14 becomes H and turns a transistor Tr ON which turn lets an LED 5 emit light, thus announcing the clogging time of the filter. The user removes and cleans the filter, then operates the clear key SW 6 for remote control. When the specified time has continued, a clear signal CL2 is generated from the circuit 20 and is supplied to the clear terminal of the counter IC2 through AND circuit AG, hence the counter IC2 is cleared.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4343378A JPS54135556A (en) | 1978-04-12 | 1978-04-12 | Clogging time announcing device of filters |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4343378A JPS54135556A (en) | 1978-04-12 | 1978-04-12 | Clogging time announcing device of filters |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54135556A true JPS54135556A (en) | 1979-10-20 |
JPS5738944B2 JPS5738944B2 (en) | 1982-08-18 |
Family
ID=12663554
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4343378A Granted JPS54135556A (en) | 1978-04-12 | 1978-04-12 | Clogging time announcing device of filters |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54135556A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58211291A (en) * | 1982-05-31 | 1983-12-08 | 松下電工株式会社 | Operating state monitor for equipment |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59187168A (en) * | 1983-04-05 | 1984-10-24 | Seiko Epson Corp | Gear and attaching and detaching of gear to shaft |
JPS60161735U (en) * | 1984-04-03 | 1985-10-26 | 株式会社昭和製作所 | hydraulic damper |
JPH0442590Y2 (en) * | 1986-08-06 | 1992-10-08 | ||
JPS63170244U (en) * | 1987-04-25 | 1988-11-07 |
-
1978
- 1978-04-12 JP JP4343378A patent/JPS54135556A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58211291A (en) * | 1982-05-31 | 1983-12-08 | 松下電工株式会社 | Operating state monitor for equipment |
Also Published As
Publication number | Publication date |
---|---|
JPS5738944B2 (en) | 1982-08-18 |
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