Data Curves - Agilent Technologies 1260 Infinity II User Manual

3
Using the Pump
Setting up the Pump with the Instrument Control Interface
Table 4 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
enhanced
compressibility
calibration
default: use enhanced
comp. calibration

Data Curves

The binary pump provides the possibility to store the following operational
data in the data file of the Agilent data system:
• Solvent percentage for each channel,
• pump flow,
• pressure
The pressure data curve is generated from the pressure sensor readings, while %A, %B
N O T E
and flow are calculated from the method settings of the pump.
For details, please refer to the online help or manual of your instrument
control software.
46
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
-6
/bar or
calibration. With this option, the pump will use solvent data libraries
provided by Agilent or data generated by using solvent compressibility
calibrations (see
page 104).
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.
InfinityLab LC Series 1260 Infinity II Binary Pump User Manual
"Running the Solvent Compressibility Calibration"
"Binary Pump Solvent
on page 103.
on