1260 Infinity Binary Pump User Manual 93
Troubleshooting and Diagnostics
6
Overview of the Module’s Indicators and Test Functions
Solvent Compressibility Calibration
Solvent compressibility is a function of solvent type and pressure. In order
to optimize flow accuracy and pressure ripple, the compressibility of the
solvent must be considered. The binary pump firmware contains
compressibility parameters for most commonly used solvents. A
compressibility calibration function is available to generate compressibility
data for unlisted solvents (see “Binary Pump Solvent Compressibility
Calibration” on page 133). The compressibility data are stored in an XML
file and can be transferred to other G1312B pumps.
Pump Elasticity Calibration
Various parts in the flow path of the binary pump have a certain elasticity
which needs to be compensated to obtain the lowest pressure- , flow- and
composition ripple possible. This is done by running an elasticity
calibration after maintenance and major repairs. For details see “Pump
Elasticity Calibration” on page 135.
Leak Rate Test
The Leak Rate Test is a diagnostic test designed to determine the pressure
tightness of the pump components. When a problem with the pump is
suspected, use this test to help troubleshoot the pump and its pumping
performance, see “Leak Rate Test” on page 137.
Diagnostic Signals
The pump has several signals (pressure, voltages and piston movement)
that can be used for diagnosing pressure stability, composition and flow
problems (see chapter Diagnostic Signals).