Valve Test - Agilent Technologies 1260 Infinity II User Manual

Valve Test

Description
The Valve Test provides a fast and accurate way to verify proper hydraulic
operation of the binary pump. Problems that are related to defective valves,
seals or pistons can be diagnosed and usually the defective part is identified.
Step 1
The system is setup with water on both channels and a restriction capillary is
attached to the outlet of the pump. Pump head A is delivering at 1 mL/min.
The pressure signal is monitored and overlaid with the piston movement plot.
The pressure pattern and the slope of the pressure signal are evaluated for the
delivery strokes of both pistons.
Step 2
The procedure from step 1 is repeated on pump head B.
Step 3
The data from step 1 and 2 are evaluated. In case test failed, a conclusion
about the defective part is made.
InfinityLab LC Series 1260 Infinity II Binary Pump User Manual
Test Functions and Calibration

Valve Test

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