GE AKTA avant User Manual page 477

Instruction name
Loop wash
System wash
ÄKTA avant User Manual 29035184 AE
9.8.1 Manual instructions - Pumps and pressures
Description
Is used to wash the Loop valve. It is possible to wash a
single sample application loop, all loops or only the by-
pass position.
Note:
•
Pressing End during Loop wash will terminate both
the wash and the run immediately.
Pressing Continue during Loop wash will terminate
the wash and the run will continue from the point at
which the Loop wash instruction was executed.
•
An instruction issued when a Loop wash is in
progress will not be executed until the wash is com-
pletely finished and the valves have turned back to
the previous positions.
•
Loop wash cannot be executed when the system is
in state HOLD.
Is used to fill the system with the selected buffer com-
position. The flow can be directed to the waste position
of either the injection valve or the outlet valve. The flow
is directed to the end of the flow path if outlet valve is
not present.
Note:
•
Pressing End during System wash will terminate
both the wash and the run immediately.
Pressing Continue during System wash will termi-
nate the wash and the run will continue from the
point at which the System wash instruction was ex-
ecuted.
•
If System wash is performed during a Gradient op-
eration, the current component B concentration is
maintained during the wash.
•
An instruction issued during a system wash operation
cannot be executed until the wash is completely fin-
ished and all valves have turned back to the previous
positions.
•
System wash cannot be executed when the system
is in state HOLD.
•
Adjust the flow rate during the system wash so that
the system pressure does not exceed 2 MPa.
9 Reference information
9.8 Using Manual instructions
477