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Table 4.1 User Message Chart (Continued)
Message
Speed Errors 302
and 303
Speed Error 304
Speed Error 305
Speed Errors 306
and 307
393552AH
Definition/Result
Speed error/Deceleration
without brake
Speed error/Deceleration
without brake
Speed error/Deceleration
with brake
Speed error/Deceleration
with brake
Possible Cause and Recommended Action
NOTE
This condition will result in a 166-minute delay
before the diagnostic message can be cleared and
the door opened. The power MUST be left on so
the ultracentrifuge can calculate when the
delay period is completed. If power to the
ultracentrifuge is lost or turned off, the remaining
delay period is preserved, and the door will remain
locked when power is restored until the delay
period is completed.
1. Verify that the rotor is installed properly.
2. Verify that the ultracentrifuge is resting on a level
surface.
3. Verify that the set speed is correct for the rotor
in use.
4. Verify that the rotor load is within the limits
specified in the rotor manual.
5. Verify that the magnets on the bottom of the rotor
are undamaged.
6. If the message persists, call Beckman Coulter Field
Service.
This message indicates an overspeed condition.
1. Verify that the rotor is installed properly.
2. Verify that the ultracentrifuge is resting on a level
surface.
3. Verify that the magnets on the bottom of the rotor
are undamaged.
4. If the message persists, call Beckman Coulter Field
Service.
This message indicates a speed signal problem.
1. Verify that the rotor is installed properly.
2. Verify that the ultracentrifuge is resting on a level
surface.
3. Verify that the magnets on the bottom of the rotor
are undamaged.
4. If the message persists, call Beckman Coulter Field
Service.
No user actions are recommended. Call
Beckman Coulter Field Service.
4
Troubleshooting
User Messages
4-3
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