Panasonic HL-D3 Series User Manual page 131

Chapter 4 Description of Functions
Edge detection area
This setting becomes enabled in the case of the tracking type. Set the square
area as the edge detection area. The position intersecting the horizontal line
and the shape being measured in the center of the square is the edge position.
There is a direction setting to search the edge in the edge detection area.
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In case the edge cannot be detected, the calculation value turns to alarm value
(+999.999) and the alarm turns ON.
Example of using mask
4
Select either the left to right direction, or right to left direction.
Set the position and size of the detection area. There is a limitation on the
size of the area which can be set (about 3mm
Mask setting
Reference value detection
area
Edge detection area
Mask area
4-52
2
).