Waters ACQUITY UPLC I-Class IVD - Binary Solvent Manager Maintenance Procedures: (Continued)

4Maintenance Procedures
44 July 7, 2014, 715003736IVD Rev. C
Replace the in-line
filter
As needed. The typical failure modes are as follows:
•High back pressure. The in-line filter causes a
high pressure shutdown. In this case, disconnect
the in-line filter. If the system exhibits pressure
decay, check the system pressure at known
conditions. Replace the frit or entire check valve
assembly.
•Leak. This can be detected visibly, using the leak
sensor, or by noticing that peak retention times
vary.
Replace the
accumulator check
valve
Replace as part of the annual scheduled routine
maintenance and, thereafter, as needed. The
typical failure modes are as follows:
•Late eluting peaks are exhibited and/or after a
dynamic leak test was performed where the leak
rate is above the acceptable limit.
•The solvent manager exhibits a low or erratic
flow rate/ pressure pulsations.
Replace solvent
reservoir filters
Replace as part of the annual scheduled routine
maintenance and, thereafter, as needed. The
typical failure modes are as follows:
•Slow baseline drift is exhibited.
•Retention times are increasing.
•The system exhibits low erratic system pressure.
Clean the air filter in
the door
Perform as part of your annual routine scheduled
maintenance and when solvent or dust
accumulates.
Replace the air filter in
the door
Replace annually.
Binary Solvent Manager maintenance procedures: (Continued)
Maintenance
procedure
Frequency