9
c)
The blackbody temperature is 35 (the default value). When drawing the area, double-click the image to
enlarge to the full screen (double-click again to restore the original picture size after drawing). The
green box in the figure below for the rule box should be drawn in the middle of the blackbody radiation
surface, and the rule box should be as small as possible (the smaller the box, the higher the measurement
accuracy, refer to the green box in the upper right corner of the image below). Click OK to take effect.
d)
Confirm that the highest and lowest temperature is within 35
±
0.2
℃
on average
2.2.3
Drawing of human body temperature detection area
a)
BF3221
（
7mm
）
/BF5401
（
13mm
）
：
i.
The subject stands on the edge of the blackbody (3m away from the camera), faces the camera, and
can see the head and shoulder exposed in the picture;
ii.
The lower border of the rule is drawn on the shoulder of the tested person, and the upper border of
the rule can be drawn to the upper edge of the image; refer to the following figure for the detection
area
b)
BF3221
（
3.5mm
）
/BF5401
（
7.5mm
）
：
iii.
The tested person is standing on the edge of the blackbody (2 meters away from the camera), and
the setting method refers to the 7mm lens;
The setting in the figure below indicates that an audible and visual alarm will be generated when
Summary of Contents for BF Series
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