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6.3 Overloading the Rotor
The maximum load of the rotor and the maximum speed has been established by the manufacturer.
Do not attempt to exceed these values.
The maximum speed of the rotor has been measured for liquids having a homogeneous density of
1.2 g/mL or less. In order to centrifuge liquids with a higher density it is necessary to reduce the speed.
NOTE: Failure to reduce the speed may result in damage to the rotor and centrifuge.
The revised maximum speed can be calculated with the following formula:
Reduced speed (n
) =
higher density value
red
Reduced speed (n
) =
higher density value
red
1.2
Example: Where the density of the liquid is 1.7, the new maximum speed would be calculated as follows:
(n
) =
× 6,500 = 5,461 rpm
1.7
red
1.2
(n
) =
× 6,500 = 5,461 rpm
1.7
red
If in doubt concerning maximum speeds, please contact the manufacturer for assistance.
7.0 Operation
The following accessories are available for the Spectrafuge™ 6C:
CAUTION: Never attempt to operate the centrifuge with rotors or adapters that show signs
of corrosion or mechanical damage. Never centrifuge strongly corrosive materials that may
damage the rotors or accessories.
7.1 Closing the Lid
After the rotor has been properly secured and
loaded, close the centrifuge lid, making sure that
the interlock has been engaged.
7.2 Lid Release
Following a run, the centrifuge will display will
show flashing "00". This signals the end of a run
and the lid can now be opened by pressing the "lid
knob" (left). Note that the lid can not be opened
until the display flashes "00" and the rotor has
stopped.
CAUTION: Do not attempt to open the lid of any centrifuge until the rotor has come to
a complete stop.
In the event of a power failure or malfunction, it may be necessary to open the lid manually.
1. Disconnect the power cord from the wall socket.
2. Remove the plastic plug, located on the left side of the unit, below the quick button.
3. Pull the cord (attached to the plug) to open the lid lock manually.
7.3 Lid Lock
The centrifuge can be started only with the lid securely closed. Do not attempt to open the lid until
the end of run signal "00" is displayed.
7.4 Speed Selection
The speed (rpm) can be selected from 300 to 6,500rpm with the knob (right). The set speed can be
viewed at all times on the large LED display (right).
1.2
× max speed (n
max
1.2
× max speed (n
max
Figure 4. Spectrafuge 6C control panel layout
)
)
Instruction Manual
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