Fluctuating Baseline on UV/VIS Detectors - WKB97190

SYMPTOMS

Wavy/Noisy baseline. 

ENVIRONMENT

• 2487 UV/VIS detector
• 2489 UV/VIS detector
• ACQUITY Arc 2489 detector
• 2996 PDA detector
• 2998 PDA detector
• ACQUITY Arc 2998 detector
• ACQUITY TUV detector
• ACQUITY PDA detector
• ACQUITY UPC² PDA Detector

CAUSE

Detector lamp failing

FIX or WORKAROUND

Replace the lamp.

• Lamp for 2487 detector and ACQUITY TUV detector (through serial number K05UPT699N) - WAS081142
• Lamp for 2489 Platinum detector, 2998 Platinum and Blue detectors, ACQUITY Arc 2998 detector, ACQUITY TUV detector (serial number: K05UPT700N and later) and ACQUITY PDA eLambda detector - 201000281 
• Lamp 2489 Blue detector and ACQUITY Arc 2489 detector - 700009330
• Lamp for 2996 PDA / ACQUITY 2996 detector - WAT052586
• Lamp for ACQUITY TUV detector (serial number: A10TUV001N and later) and ACQUITY PDA eLambda detector (Thermally managed) and ACQUITY UPC² PDA Detector Part Number 700005269

ADDITIONAL INFORMATION

Example of a wavy/noisy baseline.