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DS-2AF1-401
Инструкция по эксплуатации Страница: 11

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User Manual of 4-inch High Speed Dome

and panorama scanning. The scanning speed can be set by OSD menu from level 1 to 40, with the

corresponding speed ranging from 1°/second to 40°/second.

Preset Freeze Frame

This feature freezes the scene on the monitor when going to a preset. This allows for smooth

transition from one preset scene to another and also guarantees that masked area will not be

revealed when going to a preset.

Presets

Each of the user-definable presets can be programmed to use pan, tilt, camera settings and other

settings. When preset is called, the dome will automatically move to the defined position. User is

allowed to add, modify, delete and call each preset.

Label Display

The on-screen label of the preset title, azimuth/elevation, zoom and other operations can be

programmed by menu and displayed on the monitor.

Auto Flip

In manual tracking mode, when a target object goes directly beneath the dome, the dome will

automatically rotate 90 degrees in horizontal direction to maintain continuity of tracking.

Privacy Mask

The privacy mask allows a user to program user-defined areas that cannot be viewed by the

operator of the dome system. A masked area will move with pan and tilt functions and

automatically adjust in size as the lens zooms telephoto and wide.

3D Intelligent Positioning

The speed dome can be controlled with the 2 buttons and scroll of mouse can be used under

PRIVATE-Code protocols with devices and client software. Click on a certain area and the device will

move to the scene with corresponding point as the center. When a rectangular area is selected by

left-clicking the mouse, device will move to its center and enlarge it. With right-clicking, the lens will

zoom in, and the scroll can easily make the lens zooming, and mouse operation automatically

incorporates zooming effect.

Proportional Pan

Proportional pan automatically reduces or increases the pan and tilt speeds in proportion to the

amount of zoom. At telephoto zoom settings, the pan and tilt speeds will be slower for a given

amount of joystick deflection than at wide zoom settings. This keeps the image from moving too fast

on the monitor when there is a large amount of zoom.

Auto Focus

The auto focus enables the camera to focus automatically to maintain clear video images.

DAY/NIGHT Auto-switch

The speed dome delivers color images during the day; as light diminishes at night, it switches to

night mode and delivers black and white images with high quality. You can also switch it to NIGHT

mode manually to increase the sensitivity in low light conditions.

Slow Shutter

Slow shutter is the function of extending the exposure time to accumulate more light when the light

condition is low. Thus, the image can be brighter.

Backlight Compensation (BLC)

If the speed dome focuses on an object against strong backlight, the object will be too dark to be

seen clearly. The BLC function can compensate light to the object in the front to make it clear, but

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