Sample Manager-FTN error: Seal residual force limit exceeded (z-wash) - WKB98683
Article number: 98683
SYMPTOMS
- "Seal residual force limit exceeded (z-wash)" error message appears intermittently when priming the solvent manager or starting the flow
- Rebooting solves the issue temporarily
- Module passes initialization diagnostics
- Characterize needle seal passes (seal constant 8-11 N/mm)
- Needle seal readiness test fails
- Visible needle marks on overflow cup
- Excessive resistance when pushing down manually on the needle wash/injection station
- Bad chromatography
ENVIRONMENT
- ACQUITY UPLC Sample Manager - Flow Through Needle PLUS (SM-FTN PLUS)
- ACQUITY UPLC I-Class
CAUSE
- Damaged needle
- Faulty/bent seat port
FIX or WORKAROUND
- Replace the needle (700008977).
- Replace the seat port (700006056).
- Verify successful installation of parts by running diagnostics and calibration tests according to ACQUITY UPLC Sample Manager -Flow Through Needle
Overview and Maintenance Guide (715005051).
ADDITIONAL INFORMATION
id98683, UPBSMIVD, UPIBSM, UPIBSM+, UPIBSMIVD, UPISMFL, UPISMFL+, UPISMFTIVD, UPISMFTN, UPISMFTN+, UPLCCOLHTR, UPNBINARY, UPSMIVD, UPSMPMGR