User manual

56-3124-15 Edition AF 2003-08 11
Programming Frac-950 on Start protocol
For rack 30 mm tubes, default position, A1, for the alternative Tube number in the
variable Start_Frac_at, found on the Variables page of Start protocol, is incorrect.
Action: Choose any other tube number.
ÄKTAexplorer systems
SystemWash
If a Gradient instruction is executed during SystemWash, the system is washed with the
selected gradient composition.
BioProcess, BioPilot and FPLC
The features listed below are not accessible in systems using a CU900 control board with
an old strategy.
• When adding new components to a system, instructions are shown only for the
specific component selected
• Interactive flow scheme
• Interactive run data
• Hold_until instruction
Alarm values
For systems using a UNICORN controller board AT it may not be possible to see the
value of an alarm in the curve views of Evaluation or System Control. This may happen
if, for example, the value changes very quickly.
Action: The value will always be found in the logbook.
Loop Instruction
If the Loop instruction does not function properly, an update of the prom on UNICORN
control box AT is needed (this update will have been done on any systems already
updated to UNICORN 3.0).
Action: Contact your local Amersham Biosciences service engineer to request a prom
update to version 1.14 (or higher).
PAUSE as Watch action on systems using an AT card
When a method contains a watch command with the action PAUSE, the system will not
go into a permanent state of pause, but it will rather CONTINUE after approximately
one minute. This problem only affects systems using an AT card. The problem exists in
the EPROM, v1.16 and earlier, of the controller card.
Action: Instead of placing the PAUSE as the action of the Watch command, create a block
which contains the PAUSE command and call this block.