OHAUS Frontier FC5720R Bedienungsanleitung Seite 26

TM
Frontier Centrifuges
Make sure that the centrifuge is turned off the unit and disconnect the unit from the power supply. Then remove
adherent dust from the ventilation slots in the centrifuge by using a soft brush. Do this at least every six months.
5.1.3 Cleaning and disinfection of the rotor
1. Clean and disinfect the rotors, rotor lids and adapters with the above mentioned cleaner.
2. Use a bottle brush to clean and disinfect the rotor bores.
3. Rinse the rotors, rotor lid and adapter with clear water. Particularly the drillings of angle rotors.
4. For drying of the rotors and accessories set them on a towel. Place the angle rotors with bores down.
5. Dry the rotor cone with a soft, dry and lint-free cloth and look for damage. Do not grease the rotor cone.
5.1.4 Disinfection of aluminum rotors
In case of infectious material spilling into the centrifuge, the rotor and rotor chamber have to be disinfected directly
after the run. Rotors may be autoclaved at a maximum temperature of 121°C.
5.1.5 Disinfection of PP-rotors
Autoclaving
The recommended time for autoclaving: 15 – 20 min at 121°C (1 bar)
ATTENTION:
The sterilization time of 20 min. must not be exceeded. Repeated sterilization will cause
reduction of the mechanical resistance of the plastic material
Before autoclaving the PP-rotor and adapter must be thoroughly cleaned to avoid the burning in of dirty residues.
You can disregard the consequences of some chemical residues to plastic materials at ambient temperatures. But
at the high temperatures during autoclaving those residues may corrode and destroy the plastic. The objects must
be thoroughly rinsed with distilled water after the cleaning but before the autoclaving. Residues of any cleaning
liquids may cause fissures, whitening and stains.
Gas sterilization
Adapters, bottles and rotors may be gas sterilized with Ethylenoxyd. Make sure to air out the items after the
sterilization and before using them again.
ATTENTION:
Because the temperature may rise during the sterilization, rotors, adapters and bottles must not
be closed and must be totally unscrewed
Chemical sterilization
Bottles, adapters and rotors may be treated with the usual liquid disinfectants.
ATTENTION:
Before applying any other cleaning or decontamination method than recommended by the
manufacturer, contact the manufacturer to ensure that it will not damage the unit or the rotor.
5.1.6 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 significantly 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 residues and damage.
ATTENTION:
Please check the relevant specifications of the tubes centrifuges with the manufacturer.
5.2 Service life of rotors, buckets, accessories
Rotors and rotor lids made of aluminum or stainless steel have a maximum operating time service life of 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 service life of up to 3 years from first use. The condition for the operating time is proper use,
damage-free condition, recommended care, and no sign of corrosion or cracks.
EN-19