Operating Manual SIGMA 4-15C, page 85 of 95
03/06
9.5 Error Correction
Most of the errors can be reset by power off/on. In the event of a short power
failure during a run, this run is interrupted and can be continued by pressing the
Start-key.
No indication on
the command panel:
Actions:
− No power in the socket?
−
Power cord plugged in and line
voltage present?
− Input fuse ok?
− Power switch on?
− Contrast?
• Check fuse in mains supply.
• Plug in power cord correctly.
• Switch on thermal fuse.
• Switch on power.
• Change contrast.
9.5.1 Centrifuge cannot be Started
a) Start-key LED not illuminated:
• Close lid. Motorized lid locks must close.
b) Start-key LED illuminated:
• Power off/on. If error occurs again, call
service.
9.5.2 Centrifuge Decelerates during Operation
Imbalance dialogue window is
active:
− Rotor is loaded unevenly.
− Centrifuge tilted.
− Drive error (mechanical
damage).
− Centrifuge was moved during
operation.
− Centrifuge displays an error 73
to 77 after power on.
• Balance loading.
• Align centrifuge.
• Call Service.
• Restart after opening and closing lid.
• These error numbers indicate an error in
the internal program storage. This error is
e.g. generated when a power failure
occurs during a storage procedure.
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