4
Operation
Temperature Adaptation during Standstill
Thermo Scientific
Sorvall Legend XF / XFR
4-11
Check the loading and start the centrifuge once again. See the information on proper loading in the
rotor instruction manual. For information on troubleshooting, see section
“Troubleshooting by User”
on
page 7-3
.
Stopping the centrifugation program
With preset running time
Usually the running time is preset and you only have to wait until the centrifuge stops automatically
when the preset time limit expires.
As soon as the speed drops to zero, the message END will appear in the display. By pressing the OPEN
key
, you can open the lid and remove the centrifuge material.
You can also stop the centrifuging program manually at any time by pressing the STOP key
.
Continuous operation
If you selected continuous operation (see
“Continuous operation”
on
page 4-6
), you will have to stop
the centrifuge manually. Press the STOP key
on the control panel. The centrifuge will be
decelerated at the designated rate. The message "END" will illuminate, and after pressing the key
OPEN
, the lid will open and you can remove the centrifuged material.
Temperature Adaptation during Standstill
The temperature cannot be adapted until the rotor has been positively identified. For this, the
centrifuge must have accelerated to over 500 rpm. The speed display will then show END.
When the rotor is not recognized (lid closed and START key
not yet pressed, speed display "0"),
the centrifuge responds by ensuring that the sample cannot freeze regardless of the rotor being used.
Short-term Centrifugation
For short-term centrifuging, the Sorvall Legend XF / XFR has a PULSE- function.
By holding down the PULSE key
, spinning will start and continue until the key is let go.
The centrifuge accelerates and brakes at maximum power. Any rpm or RCF entered beforehand is
overridden.
Check carefully whether you have to maintain a certain speed for your application.
During the acceleration process, time is counted forwards in seconds. The reading stays displayed until
the centrifuge lid is opened.
Note
The centrifuge accelerates to maximum speed, regardless of which rotor was installed.
