RC12
BP™
Controls, Indicators, and Displays
3-15
A MEMORY FAILURE fault could indicate a processing
problem, but typically means that the battery has gone dead.
Press CLEAR, turn the main power switch OFF and back
ON to see if the fault recurs, then contact Thermo Service.
Until the condition is repaired, the centrifuge will not com-
municate to WatchLog Network™ (logging run data will not
occur), but the centrifuge should still be operational. If
programmed operation is desired, resave the run parameters,
but leave the main power switch ON until the condition is
repaired, so that saved programs are not lost.
NO ROTOR DETECTED
When START was pressed, a rapid increase in rpm was
detected (that could occur if no rotor was installed), and the
run was terminated immediately. After the door unlocks,
install a rotor and restart the run. (In future use, if rotors are
added: If a rotor was installed, check to be sure that it was
correctly identified in the SET display. If not, either change
the rotor or change the setting so that they match, then restart
the run.) If a correctly identified rotor was installed, it
indicates either that the drive shaft is damaged or that a
tachometer problem exists. Remove all sample from the
rotor, unplug the centrifuge and contact Thermo Service.
(WatchLog Network™ record: NO ROTOR.)
POWER FAILURE – RUN RESTARTED
A momentary power failure occurred during the run, and the
rotor speed was still within 200 rpm of SET speed when the
power was restored. The automatic restart feature resumed
the run in progress. (WatchLog Network™ does not docu-
ment this occurrence.)
POWER FAILURE – RUN TERMINATED
A power failure occurred during the run, and the rotor
speed was not within 200 rpm of SET speed when power
was restored, disabling automatic restart. The run in
progress was terminated. (If power is restored before zero
speed, WatchLog Network™ record: POWER FAIL. If
power is restored after zero speed, there will be no record
of the run.)
ROTOR IMBALANCE – BALANCE ROTOR
Excessive rotor vibration was detected; the run in progress
was terminated. Rebalance the rotor according to directions
in the rotor instruction manual, then restart the run. WatchLog
Network™ record: IMBALANCE.)
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