Thermo Scientific Sorvall ST 8FR Centrifuge
31
Loading a Program
For Direct Access Programs 1, 2, 3
Press one of the direct access program keys 1, 2, 3�
For Programs 4-99
Press the folder key� Use the SPEED arrow keys to scroll through until the desired program is
selected�
Programs Only Mode
When using the Programs Only mode it is only possible to load programs, start and stop
centrifugation runs and open the centrifuge door� Any other functions are deactivated�
To use the Programs Only mode it needs to be activated within the user menu� See
�
7. Centrifugation
Maximum Loading
The rotor can run at high speeds� Each rotor is specifically designed to run at its maximum speed
with a defined load� The safety system of the centrifuge requires that you do not overload the rotor�
The rotor is designed to work with solution with a density of up to 1�2 g/cm³� Above this density or
if total load is above the maximum weight the following steps should be taken:
Reduce the fill level�
Reduce the speed�
Use the table or the formula:
n
adm
= admissible maximum application speed
n
max
= maximum rated speed
w
max
= maximum rated load
w
app
= applied load
Once the rotor has been properly installed, the main switch turned on and the centrifuge door losed,
you may start centrifuging�
