American Dynamics ADCTDN2412P Security Camera User Manual


 
29
LEVEL adjustment
Memo:
If the LEVEL sensitivity adjustment is turned excessively to L, the
sensitivity increases because of the AGC function of the camera and the
image looks grainy.
Depending on the lens used, if the LEVEL dial is turned excessively to L,
the hunting phenomenon (floppy screen) where the iris opens and closes
involuntarily may occur. In such a case, first set the LEVEL dial to the H
position, and then readjust the LEVEL dial while checking the video signal.
To adjust the focus accurately, open the lens iris. Below is how to open the
lens iris for autoiris lens.
Press the [SELECTOR] switch on the back panel up (J) for 1 second.
[FOCUS ADJUST MODE] is displayed on the monitor screen.
When the focus adjustment is completed, press either [SELECTOR]
switch (J, K, H, K), [MENU] or [SET] button.
[FOCUS ADJUST MODE] display disappears and the lens iris returns
to original state.
Monitor screen LEVEL adjustment direction
To darken Anti-clockwise (Towards L)
To brighten Clockwise (Towards H)
ADCTDN2412N_P_EN.book Page 29 Friday, September 28, 2007 12:49 PM