OHAUS Frontier FC5706 Bedienungsanleitung Seite 20

EN-14
5.1.2 Cleaning and disinfection of the unit
1. Open the lid before you turn off the unit. Disconnect it from the power supply.
2. Open the rotor nut by turning the rotor key counter clockwise.
3. Remove the rotor.
4. Cleaning and disinfect the unit and the rotor chamber using the above mentioned cleaner.
5. Clean all accessible areas of the device and its accessories, including the power cord with a damp cloth.
6. Wash the rubber seals and rotor chamber thoroughly with water.
7. Rub the dry rubber seals with glycerol or talc to prevent these from becoming brittle. Other components of the
unit, e.g. the lid lock, motor shaft and rotor must not be greased.
8. Dry the motor shaft with a soft, dry and lint-free cloth.
9. Check the equipment and accessories for damage.
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. Particular 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, to dry
them to.
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 right
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 seriously pollute the rotor chamber, the rotor, the buckets
and the samples.
If necessary, replace the adapters, tubes and accessories to avoid further damages. Check the rotor bores
regularly for residues and damage.
TM
Frontier Centrifuge FC5706