Thermo Electron SORVALL RC3BP, Operating Instructions Manual

Page: 32 / 64

3-15
RC3 BP™ Controls, Indicators, and Displays
SAMPLE TEMPERATURE OVER LIMIT
During a run, when the pre-cool feature was not active (see
SAMPLE OVERTEMP – PRE-COOLING above), the RUN
display temperature went above the maximum allowable
(overtemperature limit) setting. Check all possible causes:
a. SET temperature too low for rotor/speed combination,
b. overtemperature limit too close to the SET temperature
(see page 3-9, CHANGE OVERTEMP LIMIT),
c. ambient air temperature at the centrifuge inlet > 35
°
C,
d. centrifuge air inlet blocked or proper clearance not ob-
served (see page 2-2, Location), or
e. air filter clogged (see page 5-2, Cleaning the Air Filter).
Check all possible causes before contacting
Thermo
Service.
(WatchLog Network™ record: incomplete, OVERTEMP.)
THE SET SPEED EXCEEDS ROTOR MAX
- ENTER A LOWER SET SPEED
START was pressed, but the centrifuge detected a set SPEED
value that was too high for the SET rotor. The centrifuge will
not start. This can occur if you change the SET rotor, but the
SET speed is too high for the newly selected rotor, or if you
recall a program that was saved based on the use of a
different, higher-speed rotor. Enter an rpm or RCF value
that does not exceed the maximum allowable for the rotor
selected, or select a different rotor, and press START.
THE SET SPEED EXCEEDS ROTOR MAX
- RUN TERMINATED
This can occur when a QC RUN or STEP RUN is in progress,
and a program is encountered that has a higher set speed
than the maximum speed of the SET rotor (indicating that
the program was saved based on the use of a different,
higher-speed rotor). The SET rotor cannot be used with the
programs as saved. Make sure the SET rotor is installed,
change to an acceptable rotor or review and change the
programs saved before reattempting. (WatchLog Network™
record: incomplete, SET SPEED.)
THE SET TIME = 0:00 - ENTER A VALID TIME
START was pressed with a set run duration value of zero.
The centrifuge will not start. Press one of the three run
duration control keys (TIME/HOLD/ACE), input a value,
then press START.