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[[File:Aqua Sensor Siemens.jpg|thumb|Dishwasher with AquaSensor. (Source: Siemens Corporate Archives)]] | [[File:Aqua Sensor Siemens.jpg|thumb|Dishwasher with AquaSensor. (Source: Siemens Corporate Archives)]] | ||
It goes without saying when washing by hand: The water is only changed once it gets too dirty. BSH<ref>BSH was founded in 1967 as Bosch-Siemens Hausgeräte GmbH - BSHG for short. In 1998, the name was changed to BSH Bosch und Siemens Hausgeräte GmbH, with the short form BSH. Since the sale of the Siemens shares in BSH to Robert Bosch GmbH the company’s name is now BSH Hausgeräte GmbH, but still BSH for short.</ref> launched a dishwasher on the market in 1996 whose electronics thought along these lines. The appearance of the new GV630 range of dishwashers attracted lots of attention among competitors and testing institutes.<ref>BSH Corporate Archives, Edition Ernst Stickel (uncatalogued), Source 184 in Stickel source folder.</ref> | It goes without saying when washing by hand: The water is only changed once it gets too dirty. BSH<ref>BSH was founded in 1967 as Bosch-Siemens Hausgeräte GmbH - BSHG for short. In 1998, the name was changed to BSH Bosch und Siemens Hausgeräte GmbH, with the short form BSH. Since the sale of the Siemens shares in BSH to Robert Bosch GmbH the company’s name is now BSH Hausgeräte GmbH, but still BSH for short.</ref> launched a dishwasher on the market in 1996 whose electronics thought along these lines. The appearance of the new GV630 range of dishwashers attracted lots of attention among competitors and testing institutes.<ref>BSH Corporate Archives, Edition Ernst Stickel (uncatalogued), Source 184 in Stickel source folder.</ref> | ||
===== AquaSensor and new electronics ===== | ===== AquaSensor and new electronics ===== | ||
It was already clear at the beginning of the 1990s that BSH's old central dishwasher series, the GV60 series, had reached the end of its product life. Significant progress in the areas of consumption, dishwasher performance, quality and above all cost reductions could no longer be expected with the old series.<ref>BSH Corporate Archives, F-BSH-004, Stickel: Spülchronik, page 156.</ref> | It was already clear at [[BSH Chronology 1984-2002: Sustainability and Internationalization|the beginning of the 1990s]] that BSH's old central dishwasher series, the GV60 series, had reached the end of its product life. Significant progress in the areas of consumption, dishwasher performance, quality and above all cost reductions could no longer be expected with the old series.<ref>BSH Corporate Archives, F-BSH-004, Stickel: Spülchronik, page 156.</ref> | ||
A new series was needed. The board of management decided that the top-class dishwashers in this series should get an electronic controller. The obsolete appliances still used a roller controller. Integrating a new electronic circuit board with the old roller controller did not offer any advantages however. The alternative was to use sensors to feed the signals to the electronic circuit board. The only problem was that they had not been developed as yet.<ref>BSH Corporate Archives, F-BSH-004, Stickel: Spülchronik, page 164.</ref> | A new series was needed. The board of management decided that the top-class dishwashers in this series should get an electronic controller, as already manufactured by [[Robert_Bosch_GmbH|Bosch]] and [[Siemens]]. The obsolete appliances still used a roller controller. Integrating a new electronic circuit board with the old roller controller did not offer any advantages however. The alternative was to use sensors to feed the signals to the electronic circuit board. The only problem was that they had not been developed as yet.<ref>BSH Corporate Archives, F-BSH-004, Stickel: Spülchronik, page 164.</ref> | ||
This posed a tantalizing challenge for the present day head of the Dishwasher Care production division Michael Rosenbauer, who was an engineer at the time in Dillingen. He recognized the potential that lay in developing these sensors. His efforts resulted in the development of a turbidity sensor that detected the degree of dirt of the water. The development was called AquaSensor – based on the successful water damage protection solution AquaStop.<ref>BSH Corporate Archives, F-BSH-004, Stickel: Spülchronik, page 164.</ref> | This posed a tantalizing challenge for the present day head of the Dishwasher Care production division Michael Rosenbauer, who was an engineer at the time in Dillingen. He recognized the potential that lay in developing these sensors. His efforts resulted in the development of a turbidity sensor that detected the degree of dirt of the water. The development was called AquaSensor – based on the successful water damage protection solution [[AquaStop – reliable protection against water damage|AquaStop]].<ref>BSH Corporate Archives, F-BSH-004, Stickel: Spülchronik, page 164.</ref> | ||
The AquaSensor was integrated in the new GV630 dishwasher series and controlled the reusage or draining of the pre-rinse water by checking the cloudiness of the water. The AquaSensor thus helped save around 20 percent of the washing water.<ref>BSH Corporate Archives, F-BSH-004, Stickel: Spülchronik, page 164.</ref> | The AquaSensor was integrated in the new GV630 dishwasher series and controlled the reusage or draining of the pre-rinse water by checking the cloudiness of the water. The AquaSensor thus helped save around 20 percent of the washing water.<ref>BSH Corporate Archives, F-BSH-004, Stickel: Spülchronik, page 164.</ref> | ||