DLAB Laboratory Instruments DM0412S Podręcznik użytkownika - Strona 12
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9. Trouble shooting
Symptom
Power lamp does not light when
the POWER is turned on.
Abnormal vibration
Door fault
No speed signal
Over speed
10. Instructions for the rotor and tubes
CAUTION
Read the instructions thoroughly, to properly load and use rotor.
Do not exceed the allowable maximum speed of rotor、tube and adapters etc. Ensure the allowable
maximum speed of adapters is lower than the rotor's maximum speed.
Before lock the rotor, rotate it, and observe carefully if
there is obvious vibration, if so, please take off the
rotor, turn some angle and install it again, until the
rotor rotates smoothly, then, lock it firmly.
Causes
·Building power circuit breaker
trips.
· Rotor do not match with spindle
·Samples are imbalance
·The door opened in running.
·Door switch failure.
·The centrifuge runs at very low
speed
·The centrifuge runs at much
bigger than the maximal speed
Table 9-1 Possible problems and solutions
10
Solutions
·Remove the trouble and turn on
the POWER.
·Install again the rotor
· Weighting
scales,
symmetrically
·Close the door immediately.
·Replace the door switch
· Check
the
speed
reconnect it again or replace it.
·Contact with service center
install
sensor,