Refrigerated Centrifuge with Heating System Sigma 3-18KHS
6 Using the centrifuge
Version 08/2012, Rev. 1.21 of 08/05/2020
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Translation of the original operating manual, part no. 0701202
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6.2.2
Installation of rotors and accessories
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6.2.2.1
Installation of a standard rotor
• Open the centrifuge lid by pressing the lid key.
• Unscrew the rotor tie-down screw from the motor shaft (counter-
clockwise).
• Lower the rotor with its central bore straight down onto the motor shaft.
• Tighten the rotor tie-down screw clockwise with the supplied rotor
wrench with 7.5 Nm. In doing so, hold the rotor at its outer rim.
• Follow the safety instructions and hazard warnings (see chapter 3 -
WARNING
Once a day or after 20 cycles, the rotor tie-down screw must be loosened
by some turns, and the rotor must be lifted and fastened again. This
ensures a proper connection between the rotor and the motor shaft.
CAUTION
When using rotors for microtiter plate formats:
Ensure that the plate holders are inserted together with the plates into the
buckets.
NOTE
The lid screw serves for the fastening of the lid onto the rotor only, not for
the fastening of the rotor onto the motor shaft.
Removal of a rotor
• Loosen the rotor tie-down screw by turning it anti-clockwise and remove
the rotor.
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6.2.2.2
Installation of a standard angle rotor with a hermetic lid
• Open the centrifuge lid by pressing the lid key.
• Unscrew the rotor tie-down screw from the motor shaft (counter-
clockwise).
• Screw the rotor lid onto the rotor and tighten it.
• Lower the rotor with the lid with its central bore straight down onto the
motor shaft.
• Insert the rotor tie-down screw into the motor shaft. Tighten the rotor tie-
down screw clockwise with the supplied rotor wrench with 7.5 Nm. In
doing so, hold the rotor at its outer rim.
• Follow the safety instructions and hazard warnings (see chapter 3 -
