JPS55163417A - Liquid level alarm - Google Patents
Liquid level alarmInfo
- Publication number
- JPS55163417A JPS55163417A JP7138179A JP7138179A JPS55163417A JP S55163417 A JPS55163417 A JP S55163417A JP 7138179 A JP7138179 A JP 7138179A JP 7138179 A JP7138179 A JP 7138179A JP S55163417 A JPS55163417 A JP S55163417A
- Authority
- JP
- Japan
- Prior art keywords
- thermistor
- liquid level
- switching element
- resistance
- voltage applied
- 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.)
- Pending
Links
Landscapes
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
PURPOSE: To prevent the malfunctioning by varying the control voltage applied on the base terminal of the switching element of the alarming element employing a thermistor.
CONSTITUTION: As the liquid level lowers with the consumption of oil in the oil tank, the liquid level detection switch 18 is closed and the thermistor is energized for a fixed time. This causes the thermistor to generate heat by itself increasing the resistance thereof. As the resistance of the thermistor 20 increases, the control voltage applied on the base terminal of te switching element 14 rises, energizing the switching element 14. Consequently, the warning lamp 12 comes on.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7138179A JPS55163417A (en) | 1979-06-07 | 1979-06-07 | Liquid level alarm |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7138179A JPS55163417A (en) | 1979-06-07 | 1979-06-07 | Liquid level alarm |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55163417A true JPS55163417A (en) | 1980-12-19 |
Family
ID=13458861
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7138179A Pending JPS55163417A (en) | 1979-06-07 | 1979-06-07 | Liquid level alarm |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55163417A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62144030A (en) * | 1985-12-06 | 1987-06-27 | ダイムラ−ベンツ・アクチエンゲゼルシャフト | Thermoelectric measuring circuit device for filled liquid surface in tank for automobile |
JPH0288118U (en) * | 1988-12-26 | 1990-07-12 |
-
1979
- 1979-06-07 JP JP7138179A patent/JPS55163417A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62144030A (en) * | 1985-12-06 | 1987-06-27 | ダイムラ−ベンツ・アクチエンゲゼルシャフト | Thermoelectric measuring circuit device for filled liquid surface in tank for automobile |
JPH0451769B2 (en) * | 1985-12-06 | 1992-08-20 | Daimler Benz Ag | |
JPH0288118U (en) * | 1988-12-26 | 1990-07-12 |
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