PN B07493AD
3-5
Troubleshooting
Retrieving Your Sample in Case of Power Failure
3
Retrieving Your Sample in Case of Power Failure
If facility power fails 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.
1
Turn the power off and disconnect the power cord from the main power source.
•
No displays or LEDs are lit.
Table 3.2
Troubleshooting Chart
Problem
Problem/Result
Recommended Action
Rotor cannot achieve
set speed
Line voltage below rating
Have a qualified service person measure line
voltage while the instrument is operating.
Electrical failure
Make sure the power cord is securely connected;
call Beckman Coulter Field Service.
Motor failure
Call Beckman Coulter Field Service.
Door will not open
Rotor spinning
Wait until the rotor stops.
Power not on
Plug in the power cord; turn power on.
Source power failure
See
Retrieving Your Sample in Case of Power
Failure
, below.
Displays are blank
Power not on
Plug in the power cord; turn power on.
Electrical failure
Make sure the power cord is securely connected;
call Beckman Coulter Field Service.
Chamber does not
reach selected
temperature
Centrifuge cannot
maintain selected
temperature for rotor in
use at speed selected
•
Precool or prewarm rotors before running at low
or high temperatures.
•
Precool rotor chamber by running a 30-minute
cycle at the required temperature with the
speed set at 2000 RPM.
•
Make sure the air intake vent is clear.
•
If using multiwell-plates for runs exceeding
2 hours in a warm and/or humid environment,
speed reduction may be required to maintain
low sample temperature.
Chamber icing
Excess humidity in
chamber
Wipe out moisture from the chamber and the
chamber gasket before each run.
Condensation build-up
between runs
•
Leave door open between runs.
•
Set temperature to a setting higher than
ambient temperature.
•
Turn centrifuge power off.
