Instruction manual

Operation
Basic operation
2-4 WX Ultra Series Thermo Scientific
Preparing tubes/bottles and rotor
The Sorvall WX Ultra series ultracentrifuges allow you to balance, by eye, tubes or bottles containing a
sample solution and then centrifuge them. Make sure that the difference between meniscus levels of
sample solution in tubes or bottles in within 5 mm (0.197 in) (See fig. 2-2).
Figure 2-2
Balancing tubes/bottles containing a sample solution
To prevent tube or bottle failure, some tube and rotor combinations cannot be run to the maximum
speed of the rotor when partially filled. The tube or bottle must be full in the following cases:
1. When a thin tube or seal tube is used.
2. When a thick tube is used for swinging rotor.
3. When a bottle is used 100,000 x g or more.
Basic operation
Setting run conditions
This section will first describe the screen for basic operation (the run screen) and the cursor keys.
Within 5 mm (0.197 in)
Within 5 mm (0.197 in)
(1) Tubes
(2) Bottles
WARNING Do not lean on, tilt or place anything on the centrifuge while in operation.
CAUTION
1. Do not operate the keyboard with a ball-point pen or a sharp object.
2. Do not continue to operate the centrifuge if abnormal sounds occur during operation.
Immediately discontinue use of the centrifuge and contact Thermo Service.