GE AKTA avant, User Manual

Page: 472 / 538

9.7.9 System settings - Advanced
The following table describes the advanced system settings available for ÄKTA avant.
Description Instruction name
Sets the values for the P and I factors needed to keep
a constant pressure by varying the flow rate. The signal
used for pressure control is set in the instruction Ad-
vanced:Constant pressure flow. Constant pressure flow
parameters
By using Pressure control the method can be run with
the set flow rate without the risk of method stop due to
pressure alarm. Pressure control is enabled in the instruc-
tion Pumps and Pressures:System flow or Pumps and
PressuresSample flow. Pressure control parameters
provides the P and I factors used in the regulator and
can be adjusted for different columns. Pressure control parame-
ters
Sets the maximum flow rate used during the turning of
the injection and outlet valve in order to avoid high
pressure alarms. Max flow during valve
turn
Sets which flow (Automatic, System flow or Sample
flow) to use to calculate the progress of the method. In
automatic mode, the position of the injection valve de-
termines if the system flow or the sample flow is used. Method progressing flow
Enables or disables sample pump flow while the injection
valve is in manual load position. Sample pump setting
Locks or unlocks the Pause and Continue buttons on
the instrument display. Instrument display
472 ÄKTA avant User Manual 29035184 AE
9 Reference information
9.7 System settings
9.7.9 System settings - Advanced