A tamper error occurs when the panel is reading that the sensor's cover is not attached properly. To address the tamper error on your DSC PG9922 glassbreak sensor, follow the instructions below.
1. Remove the secure locking screw from the bottom of the device, then press the tab on the bottom of the device.
2. Pull the cover towards you from the bottom out to remove the cover.
3. Replace the cover starting from the opposite side as from when you removed the cover. Ensure the bottom tab snaps into place and the cover conforms to the base without obstruction. Return the locking screw on the bottom of the device to resecure.
You will also need to clear the error from the panel memory by following these instructions: IQ Panel 2 - System Sensor Status.