Ametek Western Research IPS-4, Руководство пользователя

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Maintenance and Troubleshooting | 5-19
Replacing the Xenon (UV) Flash Lamp Assembly
The typical life expectancy of the Xenon Flash Lamp is 3–5 years of contin-
uous operation. However, if the Xenon Flash Lamp begins to exhibit signs
of degradation prior to the 3-year mark, replace the Xenon Flash Lamp
Assembly (Figure 5-3.1). See Figure 5-1 for the location of this assembly in
the Electronics Enclosure.
Refer to “Optical Bench Assembly Spare Parts” in Chapter 6 for reor-
dering part numbers.
The glass Xenon Flash Lamp is under high internal pressure which
could result in flying glass fragments if ruptured. Do not subject the
lamp to drop impact, vibration, or shock.
While handling a flash lamp, always wear protective devices (face
mask, clothing) to prevent possible injury, especially to hand and face
areas.
When handling the flash lamp, never touch the glass bulb of the lamp
with bare hands. Dust or fingerprints on the glass bulb may greatly
reduce transmittance in the ultraviolet range.
If the glass bulb must be cleaned, wipe it using a soft, lint-free cloth
moistened with high-quality alcohol.
To replace the Xenon Flash Lamp Assembly:
Hazardous Locations
Before proceeding, test the area around the analyzer for flammable
gases. If an explosive gas atmosphere is present, do not power down
the analyzer or any alternate power sources that supply power to the
analyzer components. Proceed only when the area is found to be safe.
1. Manually Zero the analyzer for 10 minutes.
2. After the Zero is complete, close the Sample Line and then the Vent
Line Shut Off valves (in the Oven/Sample System Enclosure) to isolate
the analyzer from the sample stream.
!
WARNING
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NOTE
!
WARNING
!
CAUTION