Precautions In Using Rotor - Thermo Scientific TCF-32 Instruction Manual

5. PRECAUTIONS IN USING ROTOR

5.1 Maximum allowable rotor speed
The maximum rotor speed marked on the rotor and cover is a one determined for the use of
the rotor with a sample or density gradient solution of less than 1.2 g/ml in maximum density.
In case the rotor is used with a sample or density gradient solution of more than 1.2 g/ml, it
should be spinned at a maximum speed reduced by the following calculation.
Allowable maximum
speed
Do not spin the rotor beyond the allowable speed.
5.2 Precautions on spinning rotor
¡ Never spin the rotor at a speed over 3,000 rpm unless it is filled with the liquid. If this is
neglected, the core will be damaged.
¡ Never spin the rotor at a speed over 3,000 rpm unless the seal attachment is mounted. If this
neglected, the shaft (D) will be damaged.
5.3 Handling the shaft (D)
¡ Since the shaft (D) mounted on the rotor top is one of the important parts of this rotor, much
care should be exercised when. handling the shaft (D). If the shaft (D) is bent or damaged,
rotor vibration or damage to bearing will possibly occur.
= Maximum speed x
-28-
1.2
Maximum density of
gradient solution (g/ml)