Digital Video Recorder User Manual 
 
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Figure 4-11 PTZ Settings 
Step 2 Use the directional button to wheel the camera to the location where you want to set the 
limit, and click the Left Limit or Right Limit button to link the location to the corresponding 
limit. 
   
The speed dome starts linear scan from the left limit to the right limit, and you must set the left 
limit on the left side of the right limit, as well the angle from the left limit to the right limit should 
be no more than 180º. 
4.2.8  Calling Linear Scan 
Purpose 
Follow the procedure to call the linear scan in the predefined scan range. 
Step 1 Click the button PTZ in the lower-right corner of the PTZ Settings 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. 
Step 2 Click the One-touch tab to show the one-touch function of the PTZ control.