ACQUITY UPLC Column Manager active preheater (APH) is leaking or broken - WKB14176

SYMPTOMS

• Active preheater is broken and leaks at fittings, or cracked tubing
• abnormal peak shape, lower than expected peak area and height
• Replacement ferrules do not fit onto the APH

ENVIRONMENT

• ACQUITY UPLC H-Class
• ACQUITY UPLC H-Class Bio
• ACQUITY UPLC I-Class
• ACQUITY UPLC H-Class PLUS
• ACQUITY UPLC H-Class PLUS Bio
• ACQUITY UPLC I-Class PLUS
• ACQUITY UPLC Column Manager
• ACQUITY UPC²
• ACQUITY Premier

CAUSE

APH tubing breakage due to frequent column changes

FIX or WORKAROUND

Replace the APH with a new unit.

• H-Class APH = 205000730
• H-Class Bio APH = 205001754
• H-Class APH SS = 205001774
• H-Class APH SS 18.5LG = 205000774
• I-Class APH = 205000894
• I-Class APH = 205001757
• UPC² APH = 205001002
• ACQUITY Premier = 205002234

ADDITIONAL INFORMATION

For a complete list of Active Preheaters, see article WKB7232.

How to install gold-plated compression screw with two-piece ferrule on capillary, se wkb284849