How do I enable camera tampering detection on my DCS-7110?

The tamper detection feature can sense whenever the camera has been redirected,
de-focused, blocked, or spray-painted, and respond promptly with a visible or audible alarm.

To enable camera tampering detection:

Step 1:  Log into the web-based configuration of the camera.

Step 2:  Click on Setup icon on the top left corner.

Step 3:  Go to Event Management -> Tamper Detection.

Step 4:  Check the box for Enable camera tampering detection.

Step 5:  Click Save Settings button to save the new settings.