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ACQUITY BSM or QSM Unstable Pressure - WKB4833

Article number: 4833

SYMPTOMS

  • ACQUITY BSM or QSM Pressure Fluctuations.

ENVIRONMENT

  • Binary Solvent Manager (BSM).
  • Quaternary Solvent Manager (QSM).
  • ACQUITY UPLC.
  • ACQUITY UPLC H-Class.
  • ACQUITY UPLC I-Class.

CAUSE

Leak in the pump seals: Inspect for mobile phase coming from the seal wash circuit.

Driplocation.png

FIX or WORKAROUND

  1. Leak in the pump seals: Replace the pump seals.
  2. Purge the pump with MeOH for 10 minutes.
  3. Perform a Dynamic Leak Test, (ACQUITY Console>Maintain>Dynamic Leak Test).

ADDITIONAL INFORMATION

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