Waters Xevo TQ MS, Operator And Maintenance Manual, Page: 61 / 184

Operating the source isolation valve 4-13
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, because the ESI probe tip is sharp.
TP03130
Isolation valve handle
in open position