NO165363C - LEAK GUARD. - Google Patents
LEAK GUARD.Info
- Publication number
- NO165363C NO165363C NO833776A NO833776A NO165363C NO 165363 C NO165363 C NO 165363C NO 833776 A NO833776 A NO 833776A NO 833776 A NO833776 A NO 833776A NO 165363 C NO165363 C NO 165363C
- Authority
- NO
- Norway
- Prior art keywords
- voltage
- sensor
- comparator
- threshold value
- terminal point
- Prior art date
Links
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/08—Liquid supply or discharge arrangements
- D06F39/081—Safety arrangements for preventing water damage
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/16—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- External Artificial Organs (AREA)
- Materials For Medical Uses (AREA)
Abstract
1. A leak detector comprising a sensor (1) which has two contacts (2 and 3) which can be bridged by an electrically-conductive liquid film and which emits a control voltage for devices, for example, a magnetic valve (20) in a liquid supply line (21) and/or for an acoustic signal generator (23), for which purpose a first comparator (11) is connected to the sensor (1) by a two-wire sensor line (5) in such manner that the comparator (1) is connected to one contact via a series resistor (10) and a first terminal point (6) and is connected to the other contact (3) and a second terminal point (7) via a voltage divider (15) across a voltage source, where the voltage connected to the sensor (1) is compared with a threshold value predetermined by the voltage divider (15), and in the event that it falls below this threshold value due to bridging of the contacts (2, 3) of the sensor (1), a signal voltage is emitted via an output (113) of the comparator (11) to control devices which are to be connected, characterized in that a first resistor (4) is connected in parallel with the sensor (1), where the first terminal point (6) is connected to the voltage source via a second resistor (8), that a second comparator (19) is connected via its positive input (192) to the first terminal point (6) and is connected by its negative input (191) to a further tapping of the voltage devider (15), where the voltage connected to the first resistor (4) is compared with a threshold value predetermined by the voltage divider (15) and in the event that it exceeds this threshold value due to an interruption of the sensor line (5) a signal voltage can be emitted via an output (193) of the second comparator (19) to control devices which are to be connected.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19823246669 DE3246669A1 (en) | 1982-12-16 | 1982-12-16 | LEAKWAECHTER |
Publications (3)
Publication Number | Publication Date |
---|---|
NO833776L NO833776L (en) | 1984-06-18 |
NO165363B NO165363B (en) | 1990-10-22 |
NO165363C true NO165363C (en) | 1991-01-30 |
Family
ID=6180906
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO833776A NO165363C (en) | 1982-12-16 | 1983-10-17 | LEAK GUARD. |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0111815B1 (en) |
AT (1) | ATE26181T1 (en) |
DE (2) | DE3246669A1 (en) |
NO (1) | NO165363C (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2187872A (en) * | 1986-03-14 | 1987-09-16 | Stanley Whiston | Leakage detector |
GB8618802D0 (en) * | 1986-08-01 | 1986-09-10 | Goulbourne S | Monitoring & detecting leaks in plumbing systems |
US4853637A (en) * | 1987-02-11 | 1989-08-01 | Conax Florida Corporation | Fluid conductivity sensor for actuating an electroexploding device |
GB2202358A (en) * | 1987-03-17 | 1988-09-21 | Robert William Dawe | Water leak detector, alarm and controller |
DE19732856C2 (en) * | 1997-07-30 | 2000-05-18 | Bht Hygiene Technik Ing H Bier | Cleaning machine and monitoring method |
WO2003058260A1 (en) | 2002-01-07 | 2003-07-17 | Capres A/S | Electrical feedback detection system for multi-point probes |
DE102005059604B3 (en) * | 2005-12-12 | 2007-03-22 | Bht Hygienetechnik Gmbh | Cleaning machine rotating arms rotational movement monitoring method, involves modifying value for cage arm revolutions based on firmly attached rotating arms revolution, where modification is done when revolutions lie within preset range |
DE102007035919B3 (en) * | 2007-07-30 | 2009-01-02 | Jenoptik Laserdiode Gmbh | Sensor system for line breakage proof object detection |
DE102008052813A1 (en) * | 2008-10-15 | 2010-04-29 | Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG | Measuring device and method for moisture detection at a measuring voltage input of such a measuring device |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1926791A1 (en) * | 1969-05-24 | 1970-12-03 | Licentia Gmbh | Monitoring device for water circuits |
DE2539279C2 (en) | 1975-09-04 | 1987-05-07 | Dieter Gräßlin Feinwerktechnik, 7742 St Georgen | Leak protection for electrical appliances |
AT368811B (en) | 1978-07-12 | 1982-11-10 | Siemens Ag Oesterreich | HUMIDITY MEASURING DEVICE |
DE2923536C2 (en) * | 1979-06-09 | 1990-05-10 | geb. Kraus Elisabeth 8413 Regenstauf Greisinger | Alarm and control device |
-
1982
- 1982-12-16 DE DE19823246669 patent/DE3246669A1/en not_active Withdrawn
-
1983
- 1983-10-17 NO NO833776A patent/NO165363C/en unknown
- 1983-12-05 AT AT83112210T patent/ATE26181T1/en not_active IP Right Cessation
- 1983-12-05 EP EP83112210A patent/EP0111815B1/en not_active Expired
- 1983-12-05 DE DE8383112210T patent/DE3370538D1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
EP0111815B1 (en) | 1987-03-25 |
DE3370538D1 (en) | 1987-04-30 |
EP0111815A1 (en) | 1984-06-27 |
DE3246669A1 (en) | 1984-06-20 |
NO165363B (en) | 1990-10-22 |
ATE26181T1 (en) | 1987-04-15 |
NO833776L (en) | 1984-06-18 |
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