Refrigerated Centrifuge Sigma 3-18KS
6 Using the centrifuge
Version 08/2012, Rev. 1.15 of 15/09/2017
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Translation of the original operating manual, part no. 0701102
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6
Using the centrifuge
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6.1
Initial start-up
DANGER
• Before the initial start-up, please ensure that your centrifuge is properly
set up and installed (see chapter 5 - "Set-up and connection").
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6.2
Switching the centrifuge on
• Press the mains power switch.
The display then illuminates. The centrifuge is ready for operation.
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6.2.1
Opening and closing the lid
The lid can be opened if the centrifuge is at a standstill and if the lid key is
illuminated.
• Press the lid key in order to open the lid.
The centrifuge cannot be started if the lid is opened.
• To close, press with both hands slightly on the lid until the electrical lock
is locked.
WARNING
Do not place your fingers between the lid and the housing when closing
the lid. Risk of crushing!
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6.2.2
Installation of rotors and accessories
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6.2.2.1
Installation of the 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.
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.
