Rotor Identification; Emergency Release; Maintenance And Servicing; Centrifuge - Hettich EBA 21 Mode D'emploi

EN
20

Rotor Identification

After every start of a centrifugation run the rotor utilised is identified.
After a change of rotor the drive switches off and the rotor code (R xx) as well as the maximum rotational speed
(n-max=xxxxx) of the rotor are displayed.
A further operation of the centrifuge is only possible after a single opening of the lid.
If, following a rotor change, the maximum speed of the rotor is less than the set speed, the speed is limited to the
maximum speed of the rotor.
21

Emergency release

The lid cannot be opened in the event of a power failure. An emergency release has to be executed by hand.
For emergency release disconnect the centrifuge from the mains.
Open the lid only during rotor standstill.
Please turn to the rear side of the cover sheet.
•
Position the centrifuge on the table sufficiently far forward so that the hole (Fig. 1, A) for the emergency release
on the base of the casing can be reached.
•
Insert the hexagonal pin driver into this hole, push it upwards and at the same time rotate the lid-lock handle to
the left.
•
Open the lid.
22

Maintenance and servicing

Pull the mains plug before cleaning.
Before any other cleaning or decontamination process other than that recommended by the
manufacturer is applied, the user has to check with the manufacturer that the planned process does not
damage the device.
•
Cleaning agents and disinfectants which lie in the pH range 5 – 8 are to be utilised. Alkaline cleaning agents with
a pH value > 8 are to be avoided.
•
In order to prevent appearances of corrosion through cleaning agents or disinfectants, the application guide from
the manufacturer of the cleaning agent or disinfectant are absolutely to be heeded.
22.1

Centrifuge

•
Regularly clean the centrifuge housing and the centrifugal chamber; and if necessary, clean with soap or a mild
cleaning agent and water. For one thing, this services purposes of hygiene, and it also prevents corrosion
through adhering impurities.
•
In the event of condensation water formation, dry the centrifugal chamber by wiping out with an absorbent cloth.
•
If infectious materials penetrates into the centrifugal chamber this is to be disinfected immediately. For surface
disinfection we recommend Bacillol Plus from the company Bode Chemicals in Hamburg. After use the
disinfection medium Bacillol Plus must be thoroughly removed with water.
•
Lightly grease the rubber seal of the centrifugal chamber after every cleaning.
22.2

Rotors and Attachments

•
Rotors and accessory parts must be regularly cleaned with soap or a mild cleaning agent and water in order to
prevent corrosion and changes of material. Cleaning is recommended at least once a week, even better after
every usage.
•
If the rotor or accessory parts are contaminated by pathogenic or radioactive material, a suitable cleaning has to
be executed. For disinfection we recommend Helipur H plus N from the company B. Braun Melsungen. For the
removal of radioactive material we recommend deco neutracon from the company Decon Laboratories Limited.
•
The rotors and accessory parts must be dried immediately after cleaning.
•
Angle rotors, container and hanger made of aluminium are to be lightly greased after drying using acid-free
grease, e.g. vaseline.
•
With aerosol-sealed rotors and bio safety systems (see Chapter "Anhang/Appendix, Rotoren und
Zubehör/Rotors and accessories") the sealing rings are to be checked and cleaned regularly (weekly). The
sealing ring is to be replaced immediately upon indication of crack formation, embrittlement or abrasive wear.
•
In order to prevent corrosion as a result of moisture between the rotor and the motor shaft, the rotor should be
disassembled and cleaned at least once a month, and the motor shaft should be lightly greased.
•
The rotors and accessory parts are to be checked on a monthly basis for corrosion damage.
Rotors and attachments may no longer be utilised upon indication of wear and tear or corrosion.
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