Panasonic CS-VE9NKE Service Manual page 51

12.12.3.2 Judge Sunlight Intensity

Based on sunlight sensor output voltage, the sunlight intensity value will be computed and logged to sunlight
intensity database.

The sunlight sensor sensitivity could be adjusted:
12.12.3.3 Judge Ambient Condition

According to sunlight intensity over a period of time, the system will analyze the ambient condition is sunny,
cloudy or night.
12.12.3.4 Temperature Shift
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