Vitek vtd-c410 用户指南
4
FOCUS ADJUSTMENT
The focus may be adjusted by simply screwing or
unscrewing the lens. Be sure to loosen the set
screw before attempting to adjust the focus or
damage may occur.
unscrewing the lens. Be sure to loosen the set
screw before attempting to adjust the focus or
damage may occur.
Be careful not to over tighten the lens or
you may damage the pick-up sensor.
you may damage the pick-up sensor.
Focus Adjustment
B
BL
LA
AC
CK
K
5
ROUTINE MAINTENANCE
Use mild liquid cleaners to remove dirt and grime from the dome surface.
Do not use harsh or abrasive cleaners which can scratch the polycarbonate dome and reduce
visibility for the camera.
visibility for the camera.
If the camera view is obstructed by scratches, remove the front plate (bezel) and rotate the bubble
to a portion that is not scratched.
to a portion that is not scratched.
If the dome becomes damaged or scratched beyond use, contact your distributor to order a
replacement.
replacement.