Operating The Source Isolation Valve - Waters Xevo TQ MS Operator's, Overview And Maintenance Manual

4 Maintenance Procedures

Operating the source isolation valve

You must close the source isolation valve to isolate the source from the
instrument vacuum system for certain maintenance procedures.
Required materials
Chemical-resistant, powder-free gloves
Warning:
toxic materials, and to avoid spreading contamination to
uncontaminated surfaces, wear clean, chemical-resistant,
powder-free gloves while performing this procedure. The source
components can be contaminated.
Warning:
suitably prepared before commencing this procedure.
To close the source isolation valve before starting a maintenance
procedure:
1. Prepare the instrument for working on the source (see
Warning:
with the instrument's source enclosure open; the source can be
hot.
Warning:
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).
2. Pull the source enclosure release (located at the bottom, right-hand side)
outwards and swing open the enclosure.
94 February 11, 2013, 71500130002 Rev. D
To avoid personal contamination with biohazards or
To avoid electric shock, ensure that the instrument is
To avoid burn injuries, take great care while working
To avoid puncture wounds, take great care while
page 85).