High pressure in needle/needle seal of ACQUITY UPLC SM-FTN PLUS - WKB194567
Article number: 194567
SYMPTOMS
- High pressure in needle/needle seal
- Venting at P4 pressure drops
- Flow possible at low flow rate
ENVIRONMENT
ACQUITY UPLC Sample Manager - Flow Through Needle PLUS (SM-FTN PLUS)
CAUSE
Obstruction in needle/seal/return
FIX or WORKAROUND
- Run water at low flow while cycling the injection valve.
- Make several water injections.
ADDITIONAL INFORMATION
id194567, UPBINARY