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Instrument Maintenance T400 Ozone Analyzer Operator’s Manual
236
11.3.7.2. UV Lamp Adjustment
This procedure details the steps for adjustment of the UV source lamp in the optical
bench assembly. This procedure should be done whenever the test function O3 REF
value drops below 3000 mV.
CAUTION – UV Radiation Risk
Do not look directly at the light of the UV lamp.
1. Make sure the analyzer is warmed-up and has been running for at least 15 minutes
before proceeding.
2. Remove the cover from the analyzer.
3. Locate the UV DETECTOR GAIN ADJUST POT on the photometer assembly (see
Figure 11-3).
4.
Perform the f
ollowing procedure:
06870C DCN6332