User Manual of LV-N9808C8E Series NVR1168.4 Detecting Video Tampering AlarmPurpose:Trigger alarm when the lens is covered and take alarm response action(s).Steps:1. Enter Video Tampering interface of Camera Management and select a channel you want to detect videotampering.Menu> Camera> Tamper-proofFigure 8. 13 Tamper-proof Setup Interface2. Set the video tampering handling method of the channel.Check the checkbox of “Enable Tamper-proof”.Drag the sensitivity bar and choose a proper sensitivity level. Use the mouse to draw an area you want todetect video tampering.Click Handling button to set up handling method of video tampering.Figure 8. 14 Set Detection Area and Sensitivity of Video Tampering3. Set arming schedule and alarm response actions of the channel.1) Click Arming Schedule tab to set the channel’s arming schedule.2) Choose one day of a week and Max. eight time periods can be set within each day.Note: Time periods shall not be repeated or overlapped.
