Appi/Apci Source-Changing The Uv Lamp Bulb - Waters Xevo TQD Operator's, Overview And Maintenance Manual

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
• 20-cm (8-inch) length of 4-mm nylon tube
To change the UV lamp bulb:
Warning:
prepared before commencing this procedure.
1. Prepare the instrument for working on the source (see
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.
4-106 Maintenance Procedures
®
(cross-head) screwdriver
The source components can be contaminated with bio-
Warning:
hazardous and/or toxic materials. Always wear chemical-resistant,
powder-free gloves while performing this procedure.
To avoid electric shock, ensure that the instrument is suitably
The probe, source, and lamp bulb can be hot. To avoid
Warning:
burn injuries, take great care while working with these compo-
nents.
To avoid eye injury from UV radiation, ensure that the
Warning:
APPI lamp is extinguished before carrying out this procedure.
page 4-7).