Detected area setup, Sensitivity, Area threshold – Speco Technologies DVR-16TT User Manual
Page 94: Detected area percentage

User’s Manual
DVR-4TN/8TN/16TN/ 16TS/16TT Series
SPECO TECHNOLOGIES 01/06
93
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Detected Area Setup
The Detect Area is displayed as follows after selecting this item. The detection
area consists of 273 (21×13) detection grids in NTSC video format or 336 (21
×
16) grids in PAL format.
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Use the Direction keys to move the cursor and press ENTER to enable or
disable a grid. Press MODE to select all of the grids for detection; press
MODE again to de-select all of the grids.
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Sensitivity
This item is used to set the sensitivity of detection grids for the camera. A
greater value indicates more sensitive motion detection. A motion alarm will
be triggered, once the amount of motion detected exceeds the Threshold
value
Move the cursor to
keys to adjust the value. The value is indicated in 4% increment.
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Area Threshold
means the motion alarm triggered level; if the percentage
of triggered grids to total detection area is greater than the set value, the
motion alarm will be triggered.
For example, if 10 grids are selected and the < Area Threshold > value is 70%,
the motion alarm will be triggered when 7 grids are motion detected.
Move the cursor to < Area Threshold > and press ENTER, then use UP /
DOWN keys to adjust the value. The value is indicated in 4% increments.
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Detected Area Percentage
This part shows the percentage and variation of the detected volume.