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H-Class FTN fails needle seal readiness test - WKB19224

Article number: 19224

SYMPTOMS

  • Low system pressure
  • Needle seal readiness test fails 

ENVIRONMENT

  • ACQUITY UPLC H-Class
  • ACQUITY UPLC I-Class

CAUSE

Within the injection station, the teeth below the needle seal are misaligned in the spring.

FIX or WORKAROUND

  1. Inspect the needle seal spring and ensure that all three teeth are properly aligned inside of the spring. 
  2. Characterize the needle seal after reinstallation.

ADDITIONAL INFORMATION

 

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