Metering system for metering liquids in the laboratory comprises a housing, a metering tip, units for detachedly holding the tip on the lower end of the housing, a displacement device, a push-button and a threaded unit

摘要

Metering system comprises a housing (1), a metering tip (59), units for detachedly holding the tip on the lower end of the housing, a displacement device (24) for suctioning liquid into and ejecting liquid out of the tip and a drive unit for driving the displacement device and having a lifting rod (7), a push-button (6) protruding from the upper end of the housing and a threaded unit (47, 53) arranged between the push-button and the lifting rod to adjust the relative axial position of the push-button and the lifting rod by rotating the button with respect to the lifting rod.