Pelco C3427M-D (2/09) manual Auto Iris Level Adjustment

SW4-4: Flickerless

In certain lighting conditions, a flicker in the light source may affect camera operation. Flickering can be caused by a number of conditions, including the quality of the source power and the age and type of fluorescent bulbs and ballasts.

Set SW4-4 to ON to enable flickerless operation. The camera will remove the effects of flickering when present. The shutter speed will be set to 1/120 (NTSC) or 1/100 (PAL).

Set it to OFF to disable flickerless operation. This is the default setting.

NOTE: If you enable flickerless operation, you should use AC line lock for best results.

SW4-5: Auto White Balance/Manual White Balance

Auto white balance (AWB) is enabled by default (OFF).

To manually set and lock the white balance:

1.Set SW4-5 to OFF.

2.Hold a white background in front of the lens until the video shows all white.

3.While holding the background in place, set SW4-5 to ON. A blue blinking block appears on the video image for a few seconds. When the block changes to solid green, the manual white balance (MWB) process is complete.

SW4-6: Reserved

Do not change SW4-6 from its factory setting. SW4-6 must be set to OFF for Varifocal models; it must be set to ON for fixed-iris lenses.

AUTO IRIS LEVEL ADJUSTMENT

To adjust the auto iris DC-drive level (refer to Figure 10 on page 17):

1.Tilt or rotate the camera module until you can access the auto iris level control (R19).

2.Turn the screw clockwise to increase the brightness level or counterclockwise to decrease the brightness level.

18 C3427M-D (2/09)