Data Lifetime; Pre-Alarm Recording - Speco DVR-4TH User Manual

5.4.6

Data Lifetime

Data Lifetime indicates the time that a recording is saved and remains in the
HDD, between the creation and deletion of a record. Only those video files
recorded during Data Lifetime will be displayed on the screen and can be
played back; those video files recorded outside the duration time will be
hidden.
Press ENTER to select this item in Record Setup menu, and then use UP /
DOWN keys to set the data lifetime. The value ranges from <1> to <365>
days, or select <0> to disable the function.
5.4.7

Pre-Alarm Recording

This item is used to set the duration time of pre-alarm recording video. The
pre-alarm recording function aims to give the user the opportunity to view a
more complete event video. The user can see the video recorded after the
alarm is triggered, and the video recorded ahead the alarm.
When an event is triggered while normal recording is in effect, the unit will
start copying the pre-alarm and the post-alarm video to the event video. The
pre-alarm duration can be set from 0~30 seconds. The default setting is 15
seconds.
The quality of the pre-alarm video is the same as the quality setting for normal
record video; and the quality of the post-alarm video is the same as the
quality setting for event record video.
DVR-4TH/8TH/16TH Series
SPECO TECHNOLOGIES 01/09
NOTE: The current number of connected cameras will affect the
recording quality which wil be automatically calculated through the
<ezRecord Setup>. Therefore, once you disconnect cameras or
connect more cameras to the unit, you should reset the <ezRecord
Setup>.
NOTE: If you want to play back the video, which is outside the data
duration of lifetime, please extend the duration till the recording
data/time of the video is included.
User's Manual
103