Pelco C3427M-D (2/09) Benutzerhandbuch

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C3427M-D (2/09)

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 seven to 10 seconds.

Figure 11 and Table F show how the camera switches between color and black-white operation.

Figure 11. DN Models Threshold Switching Levels

NOTE: These switching thresholds are approximate. Use the thresholds in Table F as a guide when 
installing the unit.

Table F.  DN Models Switching Thresholds

1.5 lux ±1.0 lux

3.0 lux ±1.0 lux

B-W

MODE

COLOR

MODE

FALLIN

G

 LI

G

HT LEVEL

RISIN

G

 LI

G

HT LEVEL

B-W

MODE

COLOR

MODE

1.5 lux

3.0 lux