Malfunctions And Error Correction; General Malfunctions - Sigma 4-5KRL Manual

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7

Malfunctions and error correction

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7.1

General malfunctions

NOTE
Type of error
No indication on the display
Centrifuge cannot be started:
start key LED is not illuminated
Centrifuge cannot be started:
lid key LED flashes
Centrifuge decelerates during
operation
Centrifuge decelerates during
operation, imbalance message is
displayed
Lid cannot be opened
Temperature value cannot be reached
(only for refrigerated centrifuges)
Hard running noise during the
centrifugation
Version 11/2017, Rev. 1.7.1 of 08/12/2022 • sb
Translation of the original operating manual,
Error messages are displayed as "Error" followed by a code number. If the
acoustic signal is activated, it sounds when the error message is displayed.
•
Eliminate the source of the problem (see table below).
•
Acknowledge the error messages by pressing the lid key.
Error messages can be eliminated by pressing the lid key. The error itself
will not be eliminated, but the centrifuge can be operated again.
Possible reason
No power in the mains supply
Power cord is not plugged in
Fuses have tripped
Mains power switch off
The start key is inactive
The lid lock is not closed correctly
Brief mains power failure
System error
–
Improper loading
–
Centrifuge is inclined
–
Drive problem
–
Centrifuge was moved during run
–
Ungreased load- bearing bolts
Lid lock has not released
Lid seal sticks
Condenser dirty (only air-cooled units) Clean the condenser. If the error
Screws of the transport safety device
are not removed
Refrigerated Centrifuge for Robot Use Sigma 4-5KRL
Refrigerated Centrifuge for Robot Use Sigma 4-5KRL IVD
7 Malfunctions and error correction
Correction
Check fuse in the mains supply
Plug in power cord correctly
Reactivate temperature fuse (see
chapter 5.2.1 - "Type of connection")
Switch mains power switch on
Activate the start key (see chapter
6.2 - "Switching the centrifuge on").
If the error occurs again, contact
service
Open and close the lid. If the error
occurs again, contact service
Press start key in order to restart the
centrifuge
Power off/on. If the error occurs
again, contact service
Balance load and restart the
centrifuge. If the error occurs again,
contact service
Clean and grease load- bearing bolts
Unlock the lid manually (see chapter
7.1.1 - "Emergency lid release") and
contact service
Clean the lid seal and apply talcum
powder
occurs again, contact service
Remove screws of the transport
safety device (see chapter 4.5 -
"Transport safety device")
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