OHAUS FC5714 Service Manual

Also see for Frontier FC5714: User guide User guide Instruction manual Instruction manual Instruction manual

Contents

40 MAINTENANCE5.1.2 Cleaning and disinfection of the unit1. 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 clockwise.3. Remove the rotor4. For cleaning and desinfection of the unit and the rotor chamber using the abovementioned cleaner.5. Clean all accessible areas of the device and its accessories, including the powercord 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 to becoming brittle.Other components of the unit, e.g. the lid lock, motor shaft and rotor must not begreased.8. Dry the motor shaft with a soft, dry and lint-free cloth.9. Control the unit and accessories for damage.Remove at least every six months adherent dust from the ventilation slots in the centrifuge byusing a brush.5.1.3 Cleaning and disinfection of the rotor1. Clean and disinfect the rotors, rotor lids and adapters with the above mentionedcleaner.2. Use a bottle brush to clean and disinfect the rotor bores.3. Rotoren, Rotordeckel und Adapter gründlich mit Wasser abspülen. Besondersdie Rotorbohrungen von Festwinkelrotoren beachten.4. For drying of the rotors and accessories set them on a towel. Place the anglerotors 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 notgrease the rotor cone.6. Place the dry motor onto the motor shaft.7. Pull the rotor nut tight by using the rotor-key.5.1.4 Disinfection of aluminium-rotorsIn case of infectious material spilling into the centrifuge, the rotor and rotor chamber have to bedisinfected right after the run. Rotors may be autoclaved at a maximum temperature of 121°C.5.1.5 Disinfection of PP-rotorsAutoclavingThe recommended time for autoclaving: 15 – 20 min at 121°C (1 bar)Attention: The sterilization time of 20 min. must not be exceeded. Sterilizationagain and again will cause reduction of the mechanical resistance of theplastic materialBefore the autoclaving the PP-rotor and adapter must thoroughly be cleaned to avoid the burningin of dirty residues.You can disregard the consequences of some chemical residues to plastic materials at ambienttemperatures. But at the high temperatures of the autoclaving those residues may corrode anddestroy the plastic. The objects must be thoroughly washed up with distilled water after thecleaning but before the autoclaving. Residues of any cleaning liquids may cause fissures,whitening and stains.

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