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Teledyne API Model 480M O
3
Monitor User Manual
09420A DCN8343
7.6. UV LED REPLACEMENT
Replace the UV LED by first disconnecting its power at the J12 connector (Figure 7-4)
and removing the two larger socket head screws (Figure 7-5) to access the UV LED.
After installing and securing the replacement UV LED PCA assembly, it is recommended
to perform a Zero Cal (see Section 5.2.3.2).
Figure 7-4. O
3
Sensor Module Board
Figure 7-5. UV LED Access