DISHWASHER WITH CONDUCTIVITY MEASUREMENT

摘要

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.