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Action
Fault
• The drop sensor photocell is dirty. Clean the photocell
with a damp cloth.
• Check that the capillary end projection is not too long
(~2 mm).
• Check that the flow rate is not too high (a continuous
flow).
DropSync is not func-
tioning
Check that the safety bar is folded up.
No fractions are collect-
ed
• Check that the DropSync unit is close enough over the
tubes.
• Check that the rack is correctly fitted to the rack holder.
• Check that the capillary end is cut cleanly and straight.
• Check that the correct rack type is selected.
Liquid misses the tubes
50
Frac-920 and Frac-950 Operating Instructions 28-9622-09 AC
6 Troubleshooting
6.1 Faults and actions