Agilent Technologies 1290 Infinity User Manual page 67

Advanced Settings
The Binary Pump advanced method setup parameters are in three sections:
• Minimum Stroke
• Compressibility
• Maximum Flow Gradient
Table 5 Advanced method parameters
Parameter Limits
Minimum Stroke 20 – 100 µL
Compressibility
Maximum Flow 1.000 –
Gradient 1000.000 mL/min/min
in steps of
0.001 mL/min/min
Default value:
100.000 mL/min/min
Agilent 1290 Infinity Binary Pump User Manual
Setting up the Pump with the Instrument Control Interface
Description
The Stroke Volume is used for optimizing between performance of the
module and seal life time. For performance a low stroke volume is
beneficial, as it divides disturbances into smaller packages, but a larger
volume is extending the life time of the pump seals.
If Automatic is activated, the pump tries to achieve an optimized stroke
volume for the Jet Weaver geometry.
Synchronized: Select this option to synchronize the strokes for both
channels; the values for Channel B are set to the same as those for Channel
A. This is done to avoid floating disturbances affecting instrument
performance.
The compressibility of the mobile phase has an effect on the performance
of the pump. For best flow accuracy and mixing performance, you can set
the parameter according to the mobile phase being used.
Use solvent types:
• Clear this check box to display the compressibility fields, which allow
you to enter compressibility values.
• When the check box is selected, the compressibility fields are not
displayed, and the enhanced compressibility calibration is enabled.
Select the required calibrated solvents from the drop-down lists using
the combo boxes in the Solvents section.
You can set a limit on the rate of change of the solvent flow to protect your
analytical column. You can set individual values for Flow ramp up and Flow
ramp down.
4
Using the Pump
67