Vitek VTC-C770WS, Руководство пользователя

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11
IMPORTANT!!!
DAY->NIGHT and NIGHT->DAY operations must be examined and verified at the
final step of installation. Factory Settings have DAY/NIGHT set to OFF.
Block the lens for a few seconds for NIGHT mode, then release and let it return to DAY mode.
If the camera stays at NIGHT mode more than 10 seconds, increase N-->D THRES and repeat
the fore-mentioned steps.
If the scene is too dim or the lens iris was adjusted too low (near close), it may not return to
DAY.
DAY/NIGHT Default Descriptions
N-->D
THRES.
3
N-->D THRES is a threshold level to switch from NIGHT to DAY.
Due to the nature of WDR, the image level of the scene are controlled
down and the camera would not switch to DAY even though the
ambient is bright enough.
Increase the value if it stays in B/W and is required to switch to DAY.
Too high of a value may make the ICR repeat between NIGHT<-->DAY.
In that case, reduce the value and execute the steps above.
N<-->D
DELAY
3
N<-->D DELAY is the time, in seconds, when the camera maintains its
status before D<-->N switches.
DELAY can avoid the unwanted/frivolous switching caused by short term
lighting changes, such as the light from a passing car.
BURST
ON
B/W
OFF
BURST ON B/W determines whether a color burst signal keeps output
or
eliminated when camera switches to B/W.
If set to ON, B/W video signal contains color burst signal and is more
compatible with the color equipment but shows the same resolution as
color
video.
If set OFF, the color burst signal is removed from B/W video and
shows better
resolution.
Rarely will a compatibility problem occur with the color equipment.