Pressure ripple observed during gradient run on ACQUITY UPLC H-Class - WKB207190
Article number: 207190
SYMPTOMS
- Pressure ripple observed during gradient run on ACQUITY UPLC H-Class
- The retention time and peak shape of the analytes are not affected over the run
- The primary head fails the dynamic leak test
ENVIRONMENT
- ACQUITY UPLC H-Class
- ACQUITY ARC
CAUSE
Sticking primary check valve
FIX or WORKAROUND
Replace the check valve (700005165). Click HERE for detailed steps and a video for check valve replacement.
ADDITIONAL INFORMATION
id207190, checkvalve, DLT, pressure fluctuation, UPAQSM, UPARBQSM, UPARBSMFTN, UPARCH30, UPARHQSM, UPARQSM, UPARQSM, UPARSMFTN, UPPDAARCB, UPQSM, UPQSM+, UPQSMBIO, UPQSMBIO+, UPSMFTN, UPSMFTN+, UPSMFTNB+, UPSMFTNBIO