Agilent InfinityLab LC Series 1260 Infinity II FLD User Manual 143
Troubleshooting and Diagnostics
6
Diagnostic Signals
Wander/Drift Problems Due to Temperature Changes
The most frequent cause of ambient temperature fluctuation are unstable
laboratory air conditioning systems. Other causes include direct sunshine or
drafts from open doors and windows. These temperature changes may cause
baseline wander which can make reproducible integration of trace level peaks
difficult or impossible.
Problem Verification
Use the diagnostic signals to find a correlation to ambient changes.
• Normal signal [LU]
• Reference signal [LU]
• Board Temperature (instrument curves)
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