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12 C3429M-A (1/08)
DAY/NIGHT OPERATION
NOTE: This section only applies to DN model cameras.
DN model cameras regularly check the brightness level of the field of view to determine when to switch
between day (color) and night (black-white) operation.
Actual brightness threshold levels are affected by camera angle, amount of zoom, field of view, lens, and
type of lighting. The switching process lasts from 7-10 seconds.
Figure 10 and Table B on page 12 show how the camera switches between color and black-white
operation.
Figure 10. DN Models Threshold Switching Levels
NOTE: These switching thresholds are approximate. Use the thresholds in Table A as a guide when
installing the unit.
Table B. DN Models Switching Thresholds
Color to B-W 1.5 lux ±1.0 lux
B-W to Color 3.0 lux ±1.0 lux
B-W
MODE
COLOR
MODE
FALLING LIGHT LEVEL
RISING LIGHT LEVEL
B-W
MODE
COLOR
MODE
1.5 lux
3.0 lux