4-4
Troubleshooting
RETRIEVING YOUR SAMPLE IN CASE OF POWER FAILURE
If facility power fails only momentarily, the centrifuge will resume
operation when power is restored and the rotor will return to set
speed. However, if the rotor comes to a complete stop, you will have
to restart the run when the power is restored. In the event of an
extended power failure, it may be necessary to trip the door-locking
mechanism manually to remove the rotor and retrieve your sample.
Action
Result
1. Turn the power off and
disconnect the power cord
from the main power source.
No displays or LEDs are lit.
2. Make sure that the rotor
is not spinning.
No sound or vibration comes from the centrifuge.
!
WARNING
Never attempt to override the door interlock
system while the rotor is spinning.
3. Use a small flat screwdriver
to remove the cover from the
override key opening on the
front panel (see Figure 4-1).
4. Insert the supplied override
key into the opening and turn
it to the right (clockwise).
The latch releases and the door opens.
If the rotor is still spinning,
close the door and wait until it stops
before attempting to remove it
.
!
WARNING
Never attempt to slow or stop the rotor
by hand.
5. Reinsert the cover in the
override key opening.
Turn the power back on.