Pelco C3425M-D manual DAY/NIGHT Operation

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 seven to 10 seconds.

Figure 13 and Table A show how the camera switches between color and black-white operation.

FALLING LIGHT LEVEL

COLOR MODE

B-W MODE

3.0lux

1.5lux

COLOR MODE

B-W MODE

RISING LIGHT LEVEL

Figure 13. Threshold Switching Levels

Table A. Approximate Switching Thresholds

Color to B-W	1.5 lux ±1.0 lux
B-W to Color	3.0 lux ±1.0 lux

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

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