Thermo Scientific Cryofuge 5500i GMP, Instructions For Use Manual

Page: 53 / 114

Operation
49
Acceleration / Deceleration curves
The
Cryofuge
®
5500i GMP
offers 9 acceleration and
deceleration profiles for optimum centrifuging of sam-
ples with different gradients. Please consult the dia-
gram examples in the Appendix for more details of
the acceleration and deceleration curves (for rotors
not mentioned here you may apply respective val-
ues).
After switching on the centrifuge, the centrifugation
profiles last entered are preset.
By pressing the “set” key
you can scroll through
the profile settings until the desired profile is reached.
Once the display stops flashing, the value is stored in
memory and remains unchanged until changed by a
new entry.
Switching from speed to RCF display
Upon switching on the centrifuge, the speed display is
set.
With the speed mode selection key
you decide
whether you want to entry and display respectively
speed and RCF.
Bucket selection for swinging bucket rotors
The automatic rotor identification will recognize the
rotor cross of the swinging bucket rotor.
If various buckets or carriers can be in-
stalled in the rotor cross, the correspond-
ing type of bucket must be selected.
The bucket selection affects the correct RCF values
display and the correct selection of the corresponding
parameters of the temperature regulation. You will
find the permitted buckets for the corresponding rotor
in the table “Rotors and rotor buckets for
Cryofuge ®
5500i GMP
” on page 18.
The current bucket set is displayed by pressing the
bucket selection key (corresponds to the last four
digits of the order number).
To change the bucket
selection, press the
bucket selection key
again until the correct
set of buckets appears.
The value is accepted when the change back to the
speed / RCF display has occurred.