Zp axis error for H-Class FTN - WKB59532

SYMPTOMS

• Zp axis error in console 
• Customer is running sticky samples

ENVIRONMENT

• ACQUITY UPLC H-Class
• ACQUITY UPLC H-Class Bio
• ACQUITY UPLC H-Class Quaternary Solvent Manager (QSM)
• ACQUITY UPLC I-Class
• ACQUITY UPLC H-Class PLUS
• ACQUITY UPLC H-Class PLUS Bio
• ACQUITY UPLC I-Class PLUS

CAUSE

Samples are drying up on the needle carriage assembly.

FIX or WORKAROUND

1. Remove and rinse the needle carriage assembly under warm water to remove residual sample.
2. Manually check the movement.
3. Reinstall the needle carriage assembly.
4. Perform calibration procedures.

ADDITIONAL INFORMATION