FLOW DAMPER FOR A CLEANING STATION

摘要

A flow damper for cleaning stations, in particular for cleaning pipettor tips, is described, a cleaning liquid being introduced into the cleaning station through a pipettor needle and flowing around the pipettor tip before it is conducted away out of the cleaning station. In order to avoid wetting of the isolation surfaces of the pipettor needle and a level detector electrode, if provided, there are provided, according to the invention, in the cleaning station at least one screen having a preferably central entry orifice for the jet of liquid emerging from the pipettor needle and a device for diverting the liquid flow in the direction essentially opposite that of the entering j et of liquid. Furthermore, a plurality of exit orifices, preferably arranged radially around the entry orifice, for the diverted liquid flow are formed in the at least one screen.