GE AKTA avant User Manual page 395

Problem
The internal tempera-
ture of the fraction col-
lector is too high
The fraction collector
failed to detect a drop
and has changed tube
without DropSync.
The tube sensor has
not detected a new
tube.
The delay queue is full
or there is a tube
change overload.
ÄKTA avant User Manual 29035184 AE
Possible cause and action
Hot surroundings
•
Decrease the room temperature. Maximum operating
temperature is 35°C.
Hardware error
•
Switch off the instrument and wait until the tempera-
ture has decreased. Restart the instrument. If this error
is recurrent, generate a System error report and con-
tact service.
To high flow rate for DropSync
•
Decrease the flow rate or disable DropSync.
Air in the flow path
•
Check the flow path for air. Fill system and purge
pumps. If this error is recurrent, generate a System
error report and contact service.
Unclean DropSync sensor
•
Clean the drop sensor photocell located above the
tube sensor with a damp cloth.
The tubing is not correctly mounted in the tubing
•
holder nut
Check that the tubing is correctly mounted, see Con-
nect tubing to the ÄKTA avant instrument, on page 134.
The fraction collector movement is blocked
•
Make sure that the fraction collector can move and is
free from obstructions.
The flow rate is too high
•
Reduce the flow rate.
The fraction volume is too small
•
Collect larger fractions.
Too many fraction collector instructions have been
•
sent
Wait for a while and try again.
8 Troubleshooting
8.5 Troubleshooting: Fraction collector
395