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8 Functional check after a repair
After a repair a functional check of the unit must be carried out. For functional check a
test run with the loaded rotor must be performed.
During the test run the followings must be checked:
• Function of the keys and the display.
• Run-up and slow-down time, max. speed of the rotor. Values see operating
instructions chapter "Anhang/Appendix, Rotoren und Zubehör/Rotors and
accessories".
• Sample temperature. Values see operating instructions chapter "Anhang/Appendix,
Rotoren und Zubehör/Rotors and accessories".
• Imbalance switch-off (only with EBA 20 C). Values see chapter "Imbalance switch-
off (only with EBA 20 C)".
• Current consumption. Values see chapter "Technical specification".
After the test run a safety test must be carried out. Check the following values:
• Insulation resistance
> 2 MΩ
• Protective conductor resistance
< 0.2 Ω
• Leakage current
< 3.5 mA *
* limit according to EN 61010-1
A laboratory centrifuge do not belong to those medical appliances which may be tested
according to the regulation IEC 60601-1 or corresponding national medical electronic
standards. Laboratory centrifuges are classified as laboratory equipment.
The regulations applying to laboratory equipment are IEC 61010-1 or European
standard EN 61010-1.
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