Seal ring 1 2 3
Seal ring 2 3
Figure 9-1 Seal rings of rotor
9.3.2 Replacement methods
（1）Clean the seal ring slot with neutral detergent solution and make it dry.
（2）Evenly coated with glue (501) in the seal ring slot and keep the seal ring into slot, press evenly to make
it contact enough with the slot bottom and bond firmly.
（3）Place for 20 minutes and waiting for the glue to completely solidified.
9.4 Routine inspection
(1) Check that if the centrifuge is on a firm、flat and level table, ensure the four feet stand on the table
firmly.
(2) Check if the centrifuge grounded properly: Use multi-meter to check if is short circuit between the
power cord grounding pin and the motor shaft. If yes, indicating grounded properly; if is open circuit, need
to check failure reason first and make troubleshooting before use.
10. Troubleshooting
10.1 Possible problems and solutions
This centrifuge has a self-diagnostic function. If a problem occurs, an error/warning code will be displayed
on the time display screen and the operator can determine the malfunction with the warning code below.
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