Waters Xevo G2 QTof, Operator'S, Overview And Maintenance Manual, Page: 92 / 248

5-16 Maintenance Procedures
To open the source isolation valve after completing a maintenance
procedure:
1. Open the source isolation valve by moving its handle clockwise to the
horizontal position.
2. Close the source enclosure.
Warning:
The source components can be contaminated with
biohazardous and/or toxic materials. Always wear
chemical-resistant, powder-free gloves while performing this
procedure.
Warning:
To avoid puncture wounds, take great care while working with
the source enclosure open if one or both of these conditions apply:
• An ESI probe is fitted (the probe tip is sharp).
• A corona pin is fitted (the pin tip is sharp).
TP03130
Isolation valve
handle in open
position