PCX5200 User’s Manual Chapter 4
4-14
The most useful diagnostic tool is a pressure log. Note that it is important to record all
four pressures under initial conditions. Each permutation indicates a specific problem.
Note: These pressures are typical and may vary slightly depending on the system and
the application. It is very important to know the initial pressures specific to your
system.
Condition Column Post-Column Reagent 1 Reagent 2
Normal 1200 250 1500 1500
Pre-column filter blocked ↑
Heated reactor obstructed ↑↑ ↑
Ambient reactor obstructed ↑↑ ↑↑
Reagent 1 not pumping ↓↓
Reagent 2 not pumping ↓ ↓
Restrictor 1 blocked ↑
Restrictor 2 blocked ↑
Condition Column Post-Column Reagent
Normal 1200 250 1500
Pre-column filter blocked ↑
Reactor obstructed ↑↑ ↑
Reagent not pumping ↓↓
Restrictor blocked ↑
There is also detailed section on troubleshooting in the Application Manual.
Interpretation
of Pressures
Two-reagent
PCX5200
One-reagent
PCX5200
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