Time-Lapse can be enabled/disable in Menu>Settings>Camera model. Time interval is selectable (10s~1000s). After the switch is turned on, tap photography trigger slightly to trigger. If the shooting process is not be interrupted artificially, device will keep photographing until storage capacity or batter power is insufficient. If you need to interrupt it manually, just tap the trigger again.
How to enable/disable Time-Lapse on UTi730E?