ACQUITY UPC2 Sample Manager "Sample Pressure Low: Possibly No Wash Solvent or Needle Damaged" error - WKB224733
Article number: 224733
SYMPTOMS
- "Sample Pressure Low: Possibly No Wash Solvent or Needle Damaged" when trying to inject
- Wash syringe leak tests successful
- Sample syringe leak test successful
- Needle and loop characterization successful
- VDD passing at an acceptable rate
ENVIRONMENT
- ACQUITY UPC2
- Sample Manager - Fixed Loop
CAUSE
Damage to needle
FIX or WORKAROUND
- Replace the needle (700009095).
ADDITIONAL INFORMATION
Customer replaced Klarez O-ring themselves, but they did not tighten the needle wash port, which caused the needle to bend on initialization. They also dislodged the wash port inlet, causing a small leak, which also would have contributed to the error.