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Waters

2695 system overpressure - WKB56518

Article number: 56518

SYMPTOMS

  • System overpressure
  • Accumulator overpressure
  • Detector flow cell is ok
  • Column is ok
  • Mobile phases are ok 

ENVIRONMENT

  • Alliance HPLC System
  • 2695 Separations Module
  • 2695D Dissolution Separations Module
  • 2795 Separations Module

CAUSE

Partial clog in in-line filter

FIX or WORKAROUND

  1. Wet prime the Alliance at 7.5ml/min for 1 min.
  2. Back pressure for any mobile phase should be between 100-400psi.
  3. If pressure is greater than 400psi then likely there is a partial blockage at the inline filter.
  4. Replace the IN-LINE FILTER ASSY (WAT035190).
  5. Verify that no further overpressure occurs. 

ADDITIONAL INFORMATION

 

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