DE4415823A1 - Household dish washer cleaning programme - Google Patents
Household dish washer cleaning programmeInfo
- Publication number
- DE4415823A1 DE4415823A1 DE19944415823 DE4415823A DE4415823A1 DE 4415823 A1 DE4415823 A1 DE 4415823A1 DE 19944415823 DE19944415823 DE 19944415823 DE 4415823 A DE4415823 A DE 4415823A DE 4415823 A1 DE4415823 A1 DE 4415823A1
- Authority
- DE
- Germany
- Prior art keywords
- rinsing liquid
- rinsing
- soiling
- liquid collecting
- change
- 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
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
- A47L15/4297—Arrangements for detecting or measuring the condition of the washing water, e.g. turbidity
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/0018—Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control
- A47L15/0021—Regulation of operational steps within the washing processes, e.g. optimisation or improvement of operational steps depending from the detergent nature or from the condition of the crockery
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
- A47L15/4251—Details of the casing
- A47L15/4257—Details of the loading door
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
- A47L2401/10—Water cloudiness or dirtiness, e.g. turbidity, foaming or level of bacteria
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
- A47L2501/02—Water discharge, e.g. opening or closure of discharge valve
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
- A47L2501/06—Water heaters
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
- A47L2501/07—Consumable products, e.g. detergent, rinse aids or salt
Landscapes
- Washing And Drying Of Tableware (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zur Spülprogramm-Steuerung in Haushalt-Geschirrspülmaschinen und eine Vorrichtung zur Durchführung des Verfahrens nach dem Oberbegriff des Anspruchs 1.The invention relates to a method for controlling the washing program in household dishwashers and one Device for performing the method according to the Preamble of claim 1.
Aus DE 36 26 351 C2 ist ein "Verfahren zum Betreiben einer
programmgesteuerten Geschirrspülmaschine" bekannt. Das
mehrteilige Gesamtspülprogramm weist einen Vorspülgang,
einen Reinigungsspülgang und mehrere Zwischenspülgänge auf.
Während des Vorspülens wird der Verschmutzungsgrad der
Spülflüssigkeit ermittelt, sowie bei gegenüber einem
vorbestimmten Verschmutzungsgrad vermindertem
Verschmutzungsgrad ein nachfolgender
Spülflüssigkeitswechsel ausgeblendet und Vorspülflüssigkeit
in den Reinigungsgang übernommen. Dieses bekannte Verfahren
ist durch folgende Merkmale gekennzeichnet:
daß ein einziger Vorspülgang vorgesehen ist,
daß im Reinigungsspülgang der Verschmutzungsgrad gemessen
wird,
daß im Reinigungsspülgang ein Teilflüssigkeitswechsel
vorgesehen ist und
daß im Reinigungspülgang bei minderem Verschmutzungsgrad
der Teilflüssigkeitswechsel ausgeblendet und nur ein
nachfolgender Zwischenspülgang mit vorausgehendem,
kompletten Spülflüssigkeitswechsel durchgeführt wird.
DE 36 26 351 C2 discloses a "method for operating a program-controlled dishwasher". The multi-part total rinsing program has a pre-rinse cycle, a cleaning rinse cycle and several intermediate rinse cycles. During the pre-rinsing, the degree of soiling of the rinsing liquid is determined, and if the degree of soiling is lower than a predetermined degree of soiling, a subsequent change of rinsing liquid is hidden and the pre-rinsing liquid is taken over into the cleaning cycle. This known method is characterized by the following features:
that a single prewash cycle is provided,
that the degree of soiling is measured in the cleaning rinse cycle,
that a partial liquid change is provided in the cleaning rinse and
that the partial liquid change is hidden in the cleaning rinse cycle with a low degree of contamination and only a subsequent intermediate rinse cycle with a complete change of rinsing liquid is carried out.
Zur Durchführung des bekannten Verfahrens ist im Spülsystem wenigstens ein Sensor angeordnet, der ein vom ermittelten Verschmutzungsgrad abhängiges Steuersignal an die Programmschalteinrichtung abgibt. Dabei werden unterschiedlichen Spülgängen auch unterschiedliche Verschmutzungsgrade als Ausgangsbasis für die Feststellung eines minderen bzw. erhöhten Verschmutzungsgrades vorbestimmt.To carry out the known method is in the rinsing system arranged at least one sensor, one of the determined Pollution degree dependent control signal to the Program switching device delivers. In doing so different rinse cycles also different Degree of pollution as a basis for the determination a reduced or increased degree of pollution predetermined.
Als Sensoren kommen beim Stand der Technik unter anderem in
Betracht:
ein Drucksensor, der den Förderdruck der Umwälzpumpe
erfaßt,
ein optischer Sensor, der auf die Trübung der
Spülflüssigkeit anspricht,
ein Sensor, welcher die Dichte der Spülflüssigkeit bzw.
deren Strömungsgeschwindigkeit erfaßt,
ein Sensor, der die zeitliche Umdrehungszahl der Sprüharme
abtastet oder
ein Sensor, welcher die leistungsabhängige Drehzahl des
Umwälzpumpen-Antriebsmotors oder dessen Stromaufnahme mißt.The sensors in the prior art include:
a pressure sensor that detects the delivery pressure of the circulation pump,
an optical sensor that responds to the turbidity of the rinsing liquid,
a sensor which detects the density of the rinsing liquid or its flow rate,
a sensor that senses the number of revolutions of the spray arms or
a sensor which measures the power-dependent speed of the circulation pump drive motor or its current consumption.
Dieses bekannte Verfahren ist lediglich in der Lage, den Grad bzw. die Intensität der Verschmutzung zu erkennen und Spülprogramme daraufhin abzustimmen; es erkennt jedoch nicht die Art und Herkunft von Spülflüssigkeitsverunreinigungen, welche durch die verschiedensten Speisereste oder ähnlichen Anschmutzungen verursacht werden.This known method is only able to Detect degree or intensity of pollution and Then adjust wash programs; however it recognizes not the type and origin of Flushing liquid contamination caused by the various food residues or similar soiling caused.
Die Erfindung hat die Aufgabe, ein Verfahren und eine Vorrichtung zu schaffen, welches neben der Bestimmung des Spülflotten-Verschmutzungsgrades bzw. der Schmutzintensität auch eine Analyse bezüglich Art und Herkunft der Geschirranschmutzungen ermöglicht und daraufhin das Spülprogramm entsprechend selbsttätig und individuell angleicht. The invention has the task of a method and a To create device, which in addition to determining the Degree of soiling of the washing liquor or the intensity of the dirt also an analysis regarding the type and origin of the Dirt on dishes and then that Rinsing program automatically and individually aligns.
Diese Aufgabe wird erfindungsgemäß durch die kennzeichnenden Merkmale des Anspruchs 1 gelöst. Weitere vorteilhafte Ausgestaltungen der Erfindung sind den Unteransprüchen zu entnehmen.This object is achieved by the characterizing features of claim 1 solved. Further advantageous embodiments of the invention are the See subclaims.
Die gegenüber dem angegebenen Stand der Technik erzielbaren Vorteile ergeben sich bereits aus Art und Weise der Aufgabenstellung, nämlich durch zusätzliches Analysieren der Spülflotte Schmutzart und -menge festzustellen. Hierdurch ist eine ideale Spülprogrammgestaltung möglich. Brillante Spülergebnisse bei weiterer Einsparung von Energie, Wasser und Reinigungsmitteln sind die Folge.The achievable compared to the stated prior art Advantages already result from the way the Task, namely through additional analysis to determine the type and amount of soiling in the washing liquor. This makes it possible to design an ideal washing program. Brilliant washing results with further savings of Energy, water and cleaning agents are the result.
Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen dargestellt und wird im folgenden näher erläutert.An embodiment of the invention is in the Drawings shown and will be described in more detail below explained.
Es zeigt:It shows:
Fig. 1 die schematische Darstellung einer Geschirrspülmaschine in Seitenansicht, Fig. 1 is a schematic representation of a dishwasher in side view,
Fig. 2 eine schematische Ausschnittsdarstellung der Geschirrspüler-Fronttür mit integrierten Spülflüssigkeits-Fangkammern, Fig. 2 is a schematic sectional diagram of the dishwasher front door with integrated rinsing fluid collecting chambers,
Fig. 3 die schematische Darstellung der Spülflüssigkeits-Fangkammern nach Fig. 2 in Ansicht A. Fig. 3 is a schematic representation of the rinsing liquid collecting chambers of Fig. 2 in view A.
Nach Fig. 1 besitzt eine Geschirrspülmaschine als obere Geräteabdeckung eine Arbeitsplatte 1. Im Inneren ihres Spülbehälters 2 sind angeordnet: Geschirrkörbe 3 sowie Sprüharme 4. Am Boden des Spülbehälters 2 befindet sich das Entleerungssystem in Form einer Ablaufwanne 5 mit nicht dargestellten Schmutzsieben sowie einer Entleerungs- und Umwälz-Pumpe. Die frontseitige Beschickungsöffnung des Spülbehälters 2 ist durch eine doppelwandige Tür 6 verschließbar. According to FIG. 1, a dishwasher has a worktop 1 as the upper appliance cover. The following are arranged in the interior of their washing compartment 2 : crockery baskets 3 and spray arms 4 . At the bottom of the rinsing container 2 there is the emptying system in the form of a drain pan 5 with dirt screens (not shown) and an emptying and circulating pump. The front loading opening of the washing compartment 2 can be closed by a double-walled door 6 .
Nach Fig. 2 und Fig. 3 sind in die Innenwandung der Tür 6 waagrecht nebeneinanderliegende Spülflüssigkeits-Fangkammern 7 mit gemeinsamer, transparenter oder durchsichtiger Rückwand 7′ integriert. Oberhalb jeder Spülflüssigkeits-Fangkammer 7 sind separate Injektoren 8 mit Dosierkanülen 9 angeordnet. Die Spülflüssigkeits-Fang kammern 7 besitzen eine gemeinsame Einfüllöffnung 10. Jeder Spülflüssigkeits-Fangkammer 7 ist weiterhin ein außerhalb liegender Sensor 11 zugeordnet, der direkt an der transparenten Rückwand 7′ plaziert ist. Die Spülflüssigkeits-Fangkammern 7 besitzen Abflußleitungen 12 und sind über ein gemeinsames Ventil 13 entleerbar.According to Fig. 2 and Fig. 3 horizontally juxtaposed rinsing liquid trap chambers 7 are integrated in the inner wall of the door 6 with a common, transparent or transparent rear wall 7 '. Separate injectors 8 with metering cannulas 9 are arranged above each rinsing liquid collecting chamber 7 . The rinsing liquid catch chambers 7 have a common fill opening 10 . Each rinsing liquid collecting chamber 7 is also assigned an outside sensor 11 , which is placed directly on the transparent rear wall 7 '. The rinsing liquid capture chambers 7 have drain lines 12 and can be emptied via a common valve 13 .
Wie aus Fig. 2 ersichtlich, ist die gemeinsame Einfüllöffnung 10 der Spülflüssigkeits-Fangkammern 7 so ausgebildet und angeordnet, daß während des Spülganges in sämtliche Spülflüssigkeits-Fangkammern 7 Lauge eingesprüht wird. Die Injektoren 8 sind mit verschiedenen Indikatorlösungen befüllt und injizieren in die ihr zugeordnete Spülflüssigkeits-Fangkammer 7. Für jede Schmutzart ist eine spezielle Indikationslösung vorgesehen, welche einen ihr typischen Farbumschlag der Spülflotte bewirkt. Mit Hilfe der Sensoren 11 werden nun Farbe und/oder Intensität abgefragt, an die Steuerelektronik in Form von Signalen weitergeleitet und entsprechend verarbeitet. Ist der Abfragezyklus beendet, werden sämtliche Spülflüssigkeits-Fangkammern 7 mit Hilfe des Ventils 13 entleert.As can be seen from FIG. 2, the common filling opening 10 of the rinsing liquid trapping chambers 7 is designed and arranged such that alkali is sprayed into all the rinsing liquid trapping chambers 7 during the rinsing cycle. The injectors 8 are filled with various indicator solutions and inject into the rinsing liquid collecting chamber 7 assigned to them . A special indicator solution is provided for each type of dirt, which brings about a change in the color of the wash liquor. With the help of the sensors 11 , color and / or intensity are now queried, forwarded to the control electronics in the form of signals and processed accordingly. When the interrogation cycle has ended, all rinsing liquid collecting chambers 7 are emptied with the help of the valve 13 .
In vereinfachter Version ist an der Tür 6 lediglich eine einzige Spülflüssigkeits-Fangkammer 7 angeordnet, die mehrmals abgefragt und entleert wird.In a simplified version, only a single rinsing liquid collecting chamber 7 is arranged on the door 6 and is polled and emptied several times.
Die gemäß Fig. 2 und Fig. 3 erläuterte Vorrichtung dient
der Erkennung der Schmutzart und der Ermittlung von
Schmutzintensität bzw. Schmutzmenge in der Spüllauge, wobei
unter anderem folgende Kriterien zugrundegelegt und
verarbeitet werden:
bei Erkennung eiweißhaltiger Verunreinigungen . . . Ei wirkt
schaumaktiv, es erfolgt je nach Intensität entweder ein
kompletter Wasserwechsel oder lediglich ein
Teilwassermengen-Austausch.
Bei Erkennung stärkehaltiger Verunreinigungen . . . Erhöhung
der Spülflottentemperatur (werden enzymhaltige Reiniger
verwendet: . . . Verlängerung der Spülzeit).
Bei Erkennung von Schwebeteilchen (z. B. von Gemüse) . . .
unmittelbarer Wasserwechsel, da infolge von
Verschleppungsgefahr am Spülgut Rückverschmutzungen
entstehen könnten.
Keinerlei oder geringfügige Verschmutzung . . . die Entleerung
eines Vorspülganges unterbleibt, d. h. ein Wasserwechsel
wird außerprogrammäßig ausgeblendet bzw. überfahren. ., In accordance with Figures 2 and 3 illustrated device is used to detect the contamination and the determination of dirt intensity or amount of dirt in the rinse liquor, wherein based on, among other things, the following criteria and processed:
upon detection of protein-containing impurities. . . Egg is foam-active, depending on the intensity, there is either a complete water change or only a partial water exchange.
Upon detection of starchy impurities. . . Increasing the rinse liquor temperature (if enzymatic cleaners are used:... Extending the rinse time).
When detection of suspended particles (e.g. vegetables). . . Immediate water change, since backwashing could occur due to the risk of carryover.
No or minor pollution. . . the emptying of a pre-rinse cycle does not take place, ie a water change is hidden or run over as a non-program.
In vereinfachter Weise ist eine Schmutzerkennung oder Analyse mit Hilfe einer Sensorik und deren Signalen, beispielsweise durch Bio-Sensoren, über photometrische Sensoren oder durch Ultraschall aussendende Sensoren realisierbar. Derartige Sensoren werden an beliebiger Stelle im Wasserkreislauf positioniert und überwachen, steuern und ändern individuell jeden kompletten Spülprogrammablauf.In a simplified manner, dirt detection or Analysis with the help of sensors and their signals, for example by bio-sensors, by photometric Sensors or sensors emitting by ultrasound realizable. Such sensors are used on any Position and monitor position in the water cycle, control and change each complete individually Wash program sequence.
In analoger Art und Weise kann das neue Verfahren samt Vorrichtung auch bei elektronisch gesteuerten Haushalt-Waschmaschinen in Anwendung kommen.In an analogous manner, the new procedure can be carried out Device also with electronically controlled Household washing machines come into use.
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19944415823 DE4415823C2 (en) | 1994-05-05 | 1994-05-05 | Method for controlling the washing program in household dishwashers and device for carrying out the method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19944415823 DE4415823C2 (en) | 1994-05-05 | 1994-05-05 | Method for controlling the washing program in household dishwashers and device for carrying out the method |
Publications (2)
Publication Number | Publication Date |
---|---|
DE4415823A1 true DE4415823A1 (en) | 1995-11-09 |
DE4415823C2 DE4415823C2 (en) | 2001-07-19 |
Family
ID=6517334
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19944415823 Expired - Fee Related DE4415823C2 (en) | 1994-05-05 | 1994-05-05 | Method for controlling the washing program in household dishwashers and device for carrying out the method |
Country Status (1)
Country | Link |
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DE (1) | DE4415823C2 (en) |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6129100A (en) * | 1998-01-13 | 2000-10-10 | Hoya Corporation | Wafer cleaning apparatus and structure for holding and transferring wafer used in wafer cleaning apparatus |
DE19938010A1 (en) * | 1999-08-11 | 2001-02-15 | Bsh Bosch Siemens Hausgeraete | Process for controlling, regulating and documenting a cleaning process |
DE19957243A1 (en) * | 1999-11-27 | 2001-05-31 | Aeg Hausgeraete Gmbh | Dishwasher has controller that sets wash program parameters to approximately set advantageous washing atmosphere for active substance until substance starts to lose effectiveness |
DE10119973A1 (en) * | 2001-04-24 | 2002-10-31 | Miele & Cie | Turbidity sensor for the detection of turbidity in the dishwashing liquid of a dishwasher |
DE19745428C2 (en) * | 1996-10-22 | 2002-10-31 | Honeywell Inc | Method for washing an object in a container |
EP1362547A2 (en) * | 2002-05-16 | 2003-11-19 | Electrolux Home Products Corporation N.V. | Dishwasher and method of operating a dishwasher when a combined preparation of various active ingredients is used |
DE10248538A1 (en) * | 2002-10-17 | 2004-04-29 | Aweco Appliance Systems Gmbh & Co. Kg | Water dirtiness measurement method for use with a dishwasher, whereby the heating rate of an electrical heating element is used as an indicator, in conjunction with a computation or look-up function, of water dirtiness |
WO2004058038A1 (en) * | 2002-12-25 | 2004-07-15 | Arçelik A. S. | A dishwasher and corresponding control method |
EP1518489A1 (en) * | 2002-05-16 | 2005-03-30 | Electrolux Home Products Corporation N.V. | Dishwasher and method of operating a dishwasher when a multi-phase detergent with several active agents is used |
WO2009036946A1 (en) * | 2007-09-19 | 2009-03-26 | Olympus Winter & Ibe Gmbh | Machine for washing and/or disinfecting medical instruments |
WO2010010115A3 (en) * | 2008-07-23 | 2010-09-16 | BSH Bosch und Siemens Hausgeräte GmbH | Rinsing method for a water-bearing domestic appliance, especially dishwasher |
WO2010112331A3 (en) * | 2009-04-02 | 2010-11-25 | BSH Bosch und Siemens Hausgeräte GmbH | Method for operating a water conducting household device |
EP2865313A1 (en) * | 2011-12-13 | 2015-04-29 | Ecolab USA Inc. | Dishmachine |
DE19806559B4 (en) * | 1998-02-17 | 2015-10-29 | BSH Hausgeräte GmbH | Method and device for treating dishes in dishwashers |
US9651534B1 (en) | 2015-12-02 | 2017-05-16 | Sani-Hawk Optical Solutions LLC | Optical chemical test systems and methods |
EP3434168A1 (en) * | 2017-07-27 | 2019-01-30 | Vestel Elektronik Sanayi ve Ticaret A.S. | Dishwasher, method of operating a dishwasher, and computer program |
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Cited By (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19745428C2 (en) * | 1996-10-22 | 2002-10-31 | Honeywell Inc | Method for washing an object in a container |
US6129100A (en) * | 1998-01-13 | 2000-10-10 | Hoya Corporation | Wafer cleaning apparatus and structure for holding and transferring wafer used in wafer cleaning apparatus |
DE19806559B4 (en) * | 1998-02-17 | 2015-10-29 | BSH Hausgeräte GmbH | Method and device for treating dishes in dishwashers |
US6881275B2 (en) | 1999-08-11 | 2005-04-19 | Bsh Bosch Und Siemens Hausgerate Gmbh | Method for the open-loop and closed-loop control and documentation of a cleaning operation with a cleaning medium |
DE19938010A1 (en) * | 1999-08-11 | 2001-02-15 | Bsh Bosch Siemens Hausgeraete | Process for controlling, regulating and documenting a cleaning process |
WO2001012892A1 (en) * | 1999-08-11 | 2001-02-22 | BSH Bosch und Siemens Hausgeräte GmbH | Method for controlling, regulating and documenting a cleaning process with a cleaning agent |
DE19957243A1 (en) * | 1999-11-27 | 2001-05-31 | Aeg Hausgeraete Gmbh | Dishwasher has controller that sets wash program parameters to approximately set advantageous washing atmosphere for active substance until substance starts to lose effectiveness |
DE10119973A1 (en) * | 2001-04-24 | 2002-10-31 | Miele & Cie | Turbidity sensor for the detection of turbidity in the dishwashing liquid of a dishwasher |
EP1362547A2 (en) * | 2002-05-16 | 2003-11-19 | Electrolux Home Products Corporation N.V. | Dishwasher and method of operating a dishwasher when a combined preparation of various active ingredients is used |
EP1518489A1 (en) * | 2002-05-16 | 2005-03-30 | Electrolux Home Products Corporation N.V. | Dishwasher and method of operating a dishwasher when a multi-phase detergent with several active agents is used |
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