Pump Elasticity Calibration - Agilent Technologies 1260 Infinity II User Manual

Pump Elasticity Calibration

Description
The flow path components of the binary pump have an inherent and pressure
dependent elasticity which differs from pump to pump. When this
elasticity/pressure function is known, a correction algorithm can be applied.
This results in significantly improved pump performance in low delay volume
mode (damper and mixer bypassed).
The pump elasticity calibration uses a solvent with well known properties
(HPLC-grade water) to determine the pump elasticity over the entire operating
pressure range and stores the calibration values in the non-volatile RAM of the
pump mainboard.
The initial calibration is done at the factory. It only needs to be repeated after
replacement of major pump parts (mainboard, pump drive). The test allows to
define which pump head will be calibrated.
Results of the pump elasticity calibration rely on known compressibility parameters for
N O T E
pure water. If the water is not HPLC-grade, not well degassed or degasser and pump are
not flushed properly, the pump elasticity calibration will fail. The pump elasticity
calibration has to be performed for each pump head individually.
Incorrect pump elasticity calibration.
C AU T I O N
Solvent compressibility calibrations acquired with a miscalibrated pump will work, but
they are not transferable to other pumps. A correct pump elasticity calibration is an
essential prerequisite for successful solvent compressibility calibrations.
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InfinityLab LC Series 1260 Infinity II Binary Pump User Manual
Calibrate the pump elasticity correctly.
Test Functions and Calibration

Pump Elasticity Calibration

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