User Manual

10BChapter 11: Alarm settings
98 TruVision NVR 21 User Manual
To set up video tampering detection:
1. Click the Camera management icon in the menu toolbar and select Tamper-
Proof to display the tamper-proof settings screen.
2. Select a camera to configure for tamper-proof.
3. Check the Enable Tamper-proof box to enable the feature.
4. Define a tampering area.
The tamper detection area setup interface lets you define an area on screen
where you want camera tampering to be detected. Click and drag the mouse
across an area to mark that area for video tampering. You can only set one
tampering area with the full screen being the maximum area. Click Clear to
clear the screen.
5. Select the tamper detection sensitivity level by clicking the sensitivity scroll
bar. Higher sensitivity is to the right of the bar.
6. Select the arming schedules for the tamper.
Click Rule and then select the Arming schedule tab to select the day of the
week and the time periods during the day when tamper can be detected. You
can schedule up to eight time periods in a day. Default is 24 hours.
Click Apply to save the settings. Click Copy to copy the settings to other
days of the week and holiday period.
Note: The time periods defined cannot overlap.
7. Select the response method to an external alarm.
Click Rule and then select the Rule tab to select the method by which you
want the NVR to notify you of the alarm. Click Apply to save settings and
then OK to return to the previous screen.
8. Click Back to return to live view.