Closing Biosafety Systems - Hettich Rotina 420 R Bedienungsanleitung

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Closing biosafety systems

In order to guarantee that it is sealed, the lid to the biosafety system has to be firmly closed.
In order to prevent the packing ring from twisting when opening and closing the cover, the packing ring must
be lightly rubbed with talcum powder or a rubber care product.
If the hanger of a biosafety system is used without the lid, the packing ring must be removed from the hanger
in order to prevent the packing ring from being damaged during the centrifugation run. Damaged packing rings
must not be used to seal the biosafety system.
For further details of available biosafety systems see chapter "Anhang/Appendix, Rotoren und Zubehör/Rotors
and accessories". If in doubt, you should obtain relevant information from the manufacturer.
Lid with screw top and hole in turning handle:

Insert the supplied key into the hole in the handle and close the lid firmly by turning the key in
a clockwise direction.
Lid with screw top:

Close the lid firmly by hand by turning in clockwise direction.
EN
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