Thermo Scientific Sorvall ST Plus Series, Инструкция по эксплуатации

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3-8
Graphical User Interface
2. Tap the rpm or x g radio button to toggle between speed (in rpm, which is short for revolutions per minute)
and RCF (in x g, which means multiples of the force of gravity).
Figure 3–15: Setpoints Screen Detail for Centrifuge Speed, and Range
3. Tap in the Speed entry field shown in Figure 3–15 , then use the keypad on the right to enter the desired
speed.
The admissible speed range for the current rotor appears just below the “Speed” label to assist you in setting
speed correctly.
When you tap the
Speed entry field, the previous setting will be replaced immediately as you start entering
digits on the keypad.
NOTICE
If you select an extremely low RCF value, it will be automatically corrected if the resulting speed
is less than 300 rpm. 300 rpm is the lowest selectable speed.
4. Tap the Save button to save the speed setting for the ongoing or the next centrifugation run.
Invalid Rotor Speed Setpoint
If the centrifuge cannot be run with the setpoint you have just entered, an Out of range warning appears beneath
the setpoint entry field. You will not be able to continue until you have supplied an acceptable setpoint value.
Figure 3–16: Settings -> Controls -> Setpoints Screen: Out of Range Value Alert
Invalid Rotor Speed Set with Centrifuge Running
If you try to change the speed from within an ongoing centrifugation run and your settings are out of range, the
Invalid “Rotor Speed” pop-up window appears.
Figure 3–17: Invalid Rotor Speed Pop-up Window)
Tap the Stop Unit button to stop the rotor, then tap the speed box one more time to correct your speed setting.
Alternatively, tap the Continue Running button to continue at the maximum allowed speed.
3. 2. 2. Set Run Time
The centrifuge lets you set a run time after which the centrifugation run stops automatically.
NOTICE
After the centrifuge is powered on, it shows the default selection made in the “Settings ->
Setpoints” screen; see “Setpoints” on page 3-34 . Proceed as follows to set run time:
1. Tap the
run time
box on the “Home” Screen.
Figure 3–18: Run Time Box on Home Screen
The “Setpoints: Standard” screen or “Setpoints: Advanced” screen is appears.