Waters Quattro Premier XE, Operator'S Manual, Page: 50 / 86

4-2 Maintenance Procedures
General
Refer to the Waters Quattro Premier XE Mass Spectrometer Operator’s Guide
for details about maintaining the corona pins, source, sample cone, and APCI
probe.
Maintenance schedule
The following table lists periodic maintenance schedules that ensure optimum
instrument performance.
The maintenance frequencies shown apply to instruments that normally
receive moderate use.
Maintenance schedule
Procedure Frequency
Change the UV lamp bulb. When the bulb fails.
Clean the lamp window. When the window becomes visibly
dirty, or when the sensitivity
decreases to unacceptable levels.
Replace the APPI lamp drive
assembly O-rings.
Annually.