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6 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, the display and the LEDs.
•
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. Values see chapter "Imbalance switch-off".
•
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
M
Ω
•
Protective conductor resistance
< 0.2
Ω
•
Leakage current
< 3.5 mA *
* limit according to EN 61010
A laboratory centrifuge do not belong to those medical appliances which may be tested
according to the regulation IEC 601 or corresponding national medical electronic
standards. Laboratory centrifuges are classified as laboratory equipment.
The regulations applying to laboratory equipment are IEC 1010 or European standard
EN 61010.
