Waters Xevo TQD, Обзор и руководство по обслуживанию

Страница: 188 / 250

4 Maintenance Procedures
188 March 14, 2014, 715004387 Rev. B
APPI/APCI source—changing the UV lamp bulb
Required materials
• Chemical-resistant, powder-free gloves
• Combined 2.5-mm Allen wrench and cone extraction tool
• Small Phillips
®
(cross-head) screwdriver
• 20-cm (8-inch) length of 4-mm nylon tube
To change the UV lamp bulb:
1. Prepare the instrument for working on the source (see page 88 ) .
2. Pull the source enclosure release (located at the bottom, right-hand side)
outward, and swing open the enclosure.
3. Retrieve the combined 2.5-mm Allen wrench and cone extraction tool
from its storage location on the source adaptor housing.
4. Hook the short-end of the Allen wrench through the ring on the back of
the bulb extraction plug, and tug to remove it.
Warning:
To avoid personal contamination with biohazards or
toxic materials, and to avoid spreading contamination to
uncontaminated surfaces, wear clean, chemical-resistant,
powder-free gloves when working with the source components.
Warning:
To avoid electric shock, ensure that the instrument is
suitably prepared before commencing this procedure.
Warning:
To avoid burn injuries, take great care while working
with the probe, source, and lamp bulb; these components can be
hot.
Warning:
To avoid eye injury from UV radiation, ensure that the
APPI lamp is extinguished before carrying out this procedure.