Closing Biosafety Systems; Control And Display Elements; Control Knob; Control Panel Pushbuttons (Keys) - Hettich UNIVERSAL 320 Bedienungsanleitung

EN
12

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, without hole in turning handle:

Close the lid firmly by hand by turning in clockwise direction.
Lid with screw top:

Close the lid firmly by hand by turning in clockwise direction.
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Control and display elements

See figure on page 2.
Fig. 2, Fig. 3: Display and control panel
13.1

Control knob

For setting the individual parameters.
Turning anticlockwise reduces the value. Turning clockwise increases the value.
13.2

Control panel pushbuttons (keys)


Selection control key for selection of specific parameter.
SELECT
The subsequent parameter is selected by every further keystroke.

Start centrifugation run. The LED in the button lights up during the centrifugation run as long as the
START
rotor is turning.
IMPULS

Short-term centrifugation.
The centrifugation run is effected as long as the button is held down. The LED in the button lights up
during the centrifugation run as long as the rotor is turning.

Store inputs and changes.

End centrifugation run.
STOP
The rotor runs down with a pre-selected brake step. The right-hand LED in the button lights up until the
OPEN
rotor is stationary. Once the rotor is stationary the left-hand LED flashes in the button. Pressing the
button twice triggers the EMERGENCY STOP.

Unlock the lid.
The left-hand LED in the button goes out.

Leave the parameter input.
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