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Waters

High pressure on M-Class µBSM - WKB31164

Article number: 31164

SYMPTOMS

  • High pressure on µBSM
  • Pressure occurs only when flow control module is plumbed in-line

ENVIRONMENT

  • ACQUITY M-Class µBSM

CAUSE

Internal tubing on the µBSM from the A or B flow controller to the tee was replaced with tubing of an incorrect internal diameter.

FIX or WORKAROUND

Ensure that the following tubing is installed:

  • 700011204 - Assy, Cap, Tube w/Frit 25 µm x 8" Flow Controller A to Tee
  • 700011205 - Assy Cap, Tube w/Frit 25 µm x 18" Flow Controller B to Tee

ADDITIONAL INFORMATION

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