Skip to main content
Waters

Needle/seal move limit exceeded - WKB799

Article number: 799

SYMPTOMS

  • Needle/seal move limit exceeded(5.0) error on Sample Manager FTN
  • Characterize needle seal fails
  • Reset of Sample Manager doesn't resolve
  • Seal constant value low-about 2-4 N/mm when it should be 8-11 N/mm
  • Fails characterize needle seal test with values between 4 and 5.

ENVIRONMENT

  • ACQUITY UPLC H-Class
  • ACQUITY UPLC H-Class Bio
  • ACQUITY UPLC I-Class
  • ACQUITY UPLC I-Class PLUS
  • SM-FTN
  • ACQUITY UPLC H-Class PLUS
  • ACQUITY UPLC H-Class PLUS Bio

CAUSE

  • Misaligned needle

FIX or WORKAROUND

  1. Make sure needle is seated properly
  2. Run needle calibration and seal characterization following SM-FTN Needle Replacement

ADDITIONAL INFORMATION

If the error persists you might have to replace the needle carriage

Prevent bent or damaged sample needles:

  1. Ensure the sample vial plate is properly positioned in rotary tray
  2. Check plate configuration to ensure it matches the plate installed

Not able to find a solution? Click here to request help.