MAIN MENU SETUP GUIDE QT426 User Manual33 | P a g e4.5.3 Video LossStep 1: Enter into system configurationalarm configurationvideo loss; refer to Fig 4-26:Fig 4-26 Alarm Configuration-Video LossStep 2: The setup steps of video loss trigger are familiar with alarm handling; user can refer to Chapter 4.5.1 Sensoralarm handling for more details.Step 3: User can setup all channels with same parameters, checkmark “all”, then to do relevant setup.Step 4: Click “default” button to restore default setting; click “apply” button to save the setting; click “exit” button toexit current interface.4.5.4 Other AlarmFig 4-27 Other AlarmStep 1: Enter into system configurationother alarm; refer to Fig 4-27:Step 2: Select a hard disk in the pull down list box, when the disk capacity is lower than that value, there will appearsome text information on the lower right of the live image.Step 3: Click “default” button to restore default setting; click “apply” button to save the setting; click “exit” button toexit current interface.