Auxiliary Pump Parameters - Agilent Technologies 1260 Infinity User Manual

4
Using the Pump
Setting up the Agilent 1260 Infinity Binary Pump G1312B with the Instrument Control Interface

Auxiliary Pump Parameters

The auxiliary pump parameters are pre- set to fit most applications.
Adjustments should only be made when required.
shows the available auxiliary parameters with their default values.
Upon initialization, the pump ignores the Maximum Flow Gradient value.
C A U T I O N
This can result in a rapid and uncontrolled pressure increase.
➔
Table 5 Auxiliary pump parameters
Parameter Limits
• Maximum Flow 0.1 – 100 mL/min²
Gradient default:
100 mL/min²
• Minimum 20 – 100 µL
Stroke default: Auto
• Compressibility
0 - 150·10
bar or enhanced
compressibility
calibration
default: use
enhanced comp.
calibration
66
To prevent harm to the column, open the purge valve until the initialization is
finished.
Description
With this parameter flow rate changes can be ramped up and down slowly to
avoid pressure shocks to the column. The default value is 100 mL/min² which
in fact turns the function off.
The volume one pump piston delivers per stroke. In general, a smaller stroke
volume results in lower pump ripple. The Auto setting adjusts the strokes
dynamically to the lowest possible value.
The strokes can be set individually for pump heads A and B.
For best performance, check option Use enhanced compressibility calibration.
-6
/bar
With this option, the pump will use solvent data libraries provided by Agilent or
data generated by using solvent compressibility calibrations (see
Solvent Compressibility Calibration"
For details on solvent compressibility see
Compressibility Calibration"
For backward compatibility to 400 bar pumps, the solvent compressibility can
still be set manually for each channel when the box is unticked.
Table 5
on page 134 ).
"Binary Pump Solvent
on page 133.
1260 Infinity Binary Pump User Manual
on page 66
"Running the