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26 C3432M-G (4/09)
DAY/NIGHT OPERATION
NOTE: This section only applies to DN model cameras.
DN model cameras regularly check the brightness level of t
he 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 seven to 10 seconds.
Figure 18. DN Models Threshold Switching L
evels
Figure 20 and Table C show how the camera switches between color and black-white operation.
NOTE: These switching thresholds are approximate. Use the thresholds in Table C as a guide when
installing the unit.
Table C. 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