Entering Run Parameters; Figure 3-3. Default Parameters - Beckman Coulter Allegra 21 Series Instruction Manual

ENTERING RUN
PARAMETERS
9. If using a fixed-angle rotor with a lid, attach the lid. Tighten the lid
with the T-handle wrench.
➠
NOTE
Fixed-angle rotors can be centrifuged without lids
attached when longer tubes are used.
10. Close the centrifuge door and push firmly down on both sides of the
door front until you hear a clicking (latching) sound.
When the power is applied for the initial use (no previous runs), default
values will be displayed (see Figure 3-3). The centrifuge has an internal
memory that stores previously used run parameters (or programs) for each
rotor that has been centrifuged. After the initial use, the program (parame-
ters) of the latest previous run will be displayed when power is applied
➠
NOTE
A Program Library is provided at the back of this
manual. You can use this chart to record the
parameters of a run for later duplication of the
run conditions.
The centrifuge
will accelerate The run duration
to 2000 rpm will be 2 minutes
SPEED
RPM RCF ROTOR
OPEN
IMBALANCE
DOOR
Figure 3-3. Default Parameters. The control panel shown is a refrigerated model;
default values are the same for the nonrefrigerated model,
except there is no temperature indication.
The chamber
will be cooled
to 20°C
TIME TEMP °C
TIME TEMP
FAST
STOP
The
acceleration
curve is 8
ACC/DEC
ENTER
ACCEL
PULSE
DECEL
STOP START
Operation
3-5