Thermo Scientific Sorvall ST Plus Series, Instructions For Use Manual

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4-3
LCD Control Panel
4. 2. 2. Set Run Time
The centrifuge lets you preset a run time after which the centrifugation run stops automatically.
Proceed as follows to set run time:
1. Press the + or - key below the Time field of the LCD display to set the desired duration for the centrifugation
run.
The value displayed in the
Time
field (see Figure 4–3 below) changes accordingly.
Figure 4–3:
15000 1:30 -5
Setting the Centrifuge Run Time
2. Release the key when the desired runtime in hours and minutes appears.
Doing so selects the runtime setting for future centrifugation runs (until the next time you choose to change
this setting) .
4. 2. 3. Set Acceleration and Deceleration Profiles
The centrifuge offers a total of 9 acceleration curves (numbered 1 through 9). An acceleration curve gradually
increases the speed of the centrifuge after starting the centrifugation run. An acceleration profile gradually
increases the speed of the centrifuge after starting the centrifugation run. A deceleration profile gradually reduces
the speed of the centrifuge towards the end of the centrifugation run.
NOTICE After the centrifuge is turned on, the last running profile selected is shown.
NOTICE
Avoid if possible speed ranges close to natural resonances of the sytem. Runs at resonance speeds
may have show vibration and an adverse effect on the quality of separation.
Acceleration Profile
Proceed as follows to select an acceleration curve:
1. Press the + or - key below the Acceleration field of the LCD display to cycle through the selection of
available acceleration profiles.
Curve number 1 provides the slowest and curve number 9 the fastest acceleration rate.
Figure 4–4:
18 9
Setting the Acceleration Profile
2. Release the + or - key when the number of the desired acceleration profile appears in the display window.
Doing so selects the acceleration profile for future centrifugation runs (until the next time you choose to
change this setting) .