GE AKTA avant User Manual page 385

Problem
Fraction collection
tube or well is over-
filled and fractionation
movements are lost.
The Fraction collector
failed to detect the
code on the Cassette
The Cassette tray is
loose in the Fraction
collector
Calibration of the
DropSync sensor failed
ÄKTA avant User Manual 29035184 AE
Possible cause and action
Too many commands are pending in the Fraction
•
collector
The reason could be that too many Fraction collector
instructions have been sent. Wait for a while and try
again.
Unclean Cassette type code reader
•
Clean the dispenser head and its four diode windows
using a cloth and a mild cleaning agent or 20%
ethanol. See Section 7.6.4 Clean built-in fraction collec-
tor, on page 301 for more information.
Unclean Cassette type codes
•
Clean the Cassette type codes. See Section 7.6.4 Clean
built-in fraction collector, on page301 for more informa-
tion.
If this error is recurrent, set the Fraction collector
configuration manually in UNICORN. In System Con-
trol, select System:Settings. Navigate to Fraction
collector:Cassette configuration and select Manual.
The Cassette tray positioning discs in the Frac
•
chamber are missing
Replace the Cassette tray positioning discs in the Frac
chamber. See Section 7.6.4 Clean built-in fraction col-
lector, on page 301.
Unclean Drop sync sensor diode windows
•
Clean the Drop sync sensor diode windows. See Sec-
tion 7.6.4 Clean built-in fraction collector, on page 301
for location of the Drop sync sensor diode windows
and cleaning instructions.
If this error is recurrent, generate a System error report
and contact Service.
8 Troubleshooting
8.5 Troubleshooting: Fraction collector
385