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3.1.5 Disinfection of PP-Rotors
ATTENTION Polypropylene rotors must not be autoclaved!
Gas Sterilization
Adapters, bottles and rotors may be gas sterilized with Ethylenoxyd. According to the duration of the
application, allow items to properly air out after the sterilization and before usage.
ATTENTION: The temperature may rise during the sterilization; rotors, adapters and bottles
should not be fully closed, keep completely unscrewed.
Chemical Sterilization
Bottles, adapters and rotors may be treated with the usual liquid disinfectants.
ATTENTION: Before applying any other cleaning resp. decontamination method other than
what was recommended by the manufacturer, contact the manufacturer to ensure that it will
not damage the unit or the rotor.
3.1.6 Glass Breakage
With high g-values, the rate of glass tube breakage increases. Glass splinters have to be removed
immediately from rotor, buckets, adapters and the rotor chamber itself. Fine glass splinters will
scratch and therefore damage the protective surface coating of a rotor. If glass splinters remain in
the rotor chamber, fine metal dust will build up due to air circulation. This very fine black metal dust
will severely pollute the rotor chamber, the rotor, the buckets and the samples.
If necessary, replace the adapters, tubes and accessories to avoid further damage. Check the rotor
bores regularly for residue and damage.
ATTENTION: Please check the relevant specifications of the tubes with the manufacturer!
3.2 Lifetime of Rotors, Round and Rectangular Buckets, Accessories
Rotors and rotor lid made of aluminum or stainless steel have an operating time of max. 7 years
from first use.
Transparent rotor lids and caps made of PC or PP, as well as rotors, tube racks and adapters of PP,
have a maximum operating time of up to 3 years from first time use.
Conditions for the Operating Time:
Proper use, damage-free condition, recommended care.
4. TROUBLE SHOOTING
4.1 Error Message: Problem / Solution
The error messages are listed to help localize possible errors faster.
The possible error referred to in this chapter may not always be the case as they are only theoretically
occurring errors and solutions.
Always keep us informed about any kind of error occurring which is not listed in this chapter. With this
information provided, we are able to improve and complete this operation manual.
© Hermle Labortechnik GmbH
ZK496_V1.22_eng
MAINTENANCE
33
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