64a) From Main menu->Search, or on the preview interface right click mouse, you can go to Figure4-60.b) At the top right pane, you can check the box to select picture and then select playback interval.c) Please refer to chapter 4.8.2 to select picture you want to view.4.9 Backup4.9.1 File BackupIn this interface, you can backup record file to the USB device.a) Connect USB burner, USB device or portable HDD and etc to the device.b) From Main menu->BACKUP, you can go to the Backup interface. See Figure 4-65Figure 4-65c) Select backup device and then set channel, file start time and end time.d) Click Add button, system begins search. All matched files are listed below. System automaticallycalculates the capacity needed and remained. See Figure 4-66.e) System only backup files with check mark before channel name. You can use Fn or cancel buttonto delete check mark after file serial number.f) Click backup button, you can backup selected files. There is a process bar for you reference.g) When the system completes backup, you can see a dialogue box prompting successful backup.
