75/97
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, 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 repair instructions pg. 59, chapter 6.15.3.
•
Current consumption. Values see repair instructions pg. 97, chapter 11.4.
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 61010-1
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.
Содержание ROTINA 420
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