Agilent Technologies Infinity Binary Pump VL 1290, Руководство пользователя

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Agilent 1290 Infinity Binary Pump User Manual 105
Test Functions and Calibrations
8
Pump Head Leak Test
Pump Head Leak Test
The test determines the leakage of the individual pump heads, by blocking
each pump head separately and pressurizing to a specified level. The flow is
delivered by the secondary piston and thereby the parts between the outlet
ball valve and the purge valve are tested for leak tightness. The test allows for
setting the pressure at which the test is performed. The leak rate of high
pressure parts is not always a linear function and therefore it is recommended
to perform the test at a pressure that corresponds to the normal operating
pressure of the system.
When Excessive pressure ripple or suspected pump performance problems.
Preparations Solvents must be present in both channels.