7.3. Protective tip cone filters and filter ejection
The tip cone design of the Biohit
m
LINE pipettors (> 10
µ
l) allows the
use of Biohit Safe-Cone filters in the tip cones. These removable filters
prevent liquids and aerosols from entering the pipettor and, thus,
protects the pipettor from contamination and damage.
The Safe-Cone filters are available as Standard or Plus versions. It is
recommended to use the Standard filter for general applications and
the Plus filter for more demanding applications such as cell culture,
bacterial and virological work and molecular biology. Filters need to be
changed regularly. The interval for filter changing is application
dependant but the recommendation is to change the filter daily (after 50
– 250 pipetting cycles) and always in case of over-aspiration. (See
Chapter 1 for ordering information.)
The Safe-Cone filters can be removed with the unique filter ejector
without touching the filters by hand. Remove the operating button cap
and eject the filter by pressing the operating button down (Fig. 7). Make
sure that the filter is disposed into a suitable waste container. Clean the
tip cone if needed and put the new filter in place.
Fig. 7.
7
