User Manual of Digital Video Recorder 
 
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4.2.8  Calling Linear Scan 
Purpose: 
Follow the procedure to call the linear scan in the predefined scan range. 
Steps: 
1.  Click the button PTZ in the lower-right corner of the PTZ setting interface; 
Or press the PTZ button on the front panel or click the PTZ Control icon    in the quick setting bar to 
enter the PTZ setting menu in live view mode. 
2.  Click the    button to show the one-touch function of the PTZ control. 
 
Figure 4. 11 PTZ Panel - One-touch 
 
3.  Click Linear Scan button to start the linear scan and click the Linear Scan button again to stop it. 
You can click the Restore button to clear the defined left limit and right limit data and the dome needs to 
reboot to make settings take effect. 
4.2.9  One-touch Park 
Purpose: 
For some certain model of the speed dome, it can be configured to start a predefined park action (scan, preset, 
patrol and etc.) automatically after a period of inactivity (park time). 
Steps: 
1.  Click the button PTZ in the lower-right corner of the PTZ setting interface; 
Or press the PTZ button on the front panel or click the PTZ Control icon    in the quick setting bar to 
enter the PTZ setting menu in live view mode. 
2.  Click the    button to show the one-touch function of the PTZ control.