Atypical gradient profile on a 2695 SM - WKB66353
Article number: 66353
SYMPTOMS
- Atypical gradient profile
- Baseline drops when organic portion of gradient starts
- "Lost prime" error message appears when at high-organic portion of gradient
ENVIRONMENT
- Alliance HPLC System
- 2695 Separations Module
- 2795 Separations Module
CAUSE
Faulty check valves and/or seals
FIX or WORKAROUND
Replace the pump seals using the Alliance solvent manager rebuilding kit (700004073).
ADDITIONAL INFORMATION
For individual seal part numbers, see the article Alliance HPLC System flow rate not accurate - WKB109947.
id66353, 2690, 2690D, 2690DUPGD, 2690UP, 2695, 2695D, 2695DE, 2695DEB, 2695DUP, 2695E, 2695EB, 2695INERT, 2695UP, 2790XE, 2790XEUP, 2795E, 2795UP, 2795XE, A-10SSM, ALLCOLCLR, ALLCOLHTR, ALLCOLHTRB, checkvalve