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Noisy/erratic baseline for PDA detector - WKB74137

Article number: 74137

SYMPTOMS

PDA_baseline_pre_repair1.jpg

PDA baseline noise is high.

ENVIRONMENT

  • ACQUITY UPLC PDA Detector
  • ACQUITY UPLC I-Class

CAUSE

The primary pump on the solvent manager leaks and the system pressure is unstable.

FIX or WORKAROUND

Rebuild primary pump on solvent manager to fix the leak and to acquire a normal baseline post pump rebuild.

ADDITIONAL INFORMATION

For UPLC pump rebuild kit part numbers, see article: Are the primary and accumulator pump rebuild kits for the ACQUITY BSM for two pump heads or one? - WKB25578

id74137, A-30PDA, baseline ripple, UPAPDA, UPC2PDA, UPPDA, UPPDAARC, UPPDAARCB, UPPDA-E, UPPDA-L, UPPDALTC, UPPDATC, UPPPDA

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