Dishwasher with conductivity measurement

Details Dishwasher with conductivity measurement Dishwasher with conductivity measurement

A - Human Necessities

47

L

A47L 15/42 (2006.01)

Patent

CA 2698320

A dish washer comprises a washing tub (10) having a sump (12), at least one spraying nozzle located within the washing tub, means for feeding fresh water into the sump, a circulation pump (14) for circulating process water from the sump (12) to the spraying nozzle and a conductivity sensor (24) for measuring the conductivity of the fresh and/or the process water. In order to enable use of a single conductivity sensor (24) for measuring the conductivity of both the fresh and the process water, the conductivity sensor (24) is located in a conduit for feeding fresh water into the sump and there further is provided a bypass line (34) which is arranged to cause process water to flow through the conductivity sensor (24) when the circulation pump (14) is in operation.

L'invention concerne un lave-vaisselle comprenant un bac de lavage (10) doté d'un puisard (12), au moins une buse de pulvérisation placée à l'intérieur du bac de lavage, un moyen pour amener l'eau fraîche dans le puisard, une pompe de circulation (14) pour faire circuler l'eau de traitement du puisard (12) à la buse de pulvérisation, et un capteur de conductivité (24) pour mesurer la conductivité de l'eau fraîche et/ou de traitement. Afin de pouvoir utiliser un capteur de conductivité (24) unique pour mesurer la conductivité de l'eau fraîche et de l'eau de traitement, le capteur de conductivité (24) est placé dans un conduit pour amener l'eau fraîche dans le puisard et ensuite une conduite de dérivation (34) est agencée pour permettre à l'eau de traitement de circuler à travers le capteur de conductivité (24) lorsque la pompe de circulation (14) fonctionne.

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