5.
Setting the detection area:
The IR-3000 comes with a user modifiable mask
on the lens (figure 4) to adjust the width of the
detection area from approximately 16
o
to 100
o
.
The mask comes in two pieces, and fits into the
slots above & below the lens cover. Each half of
the mask is perforated and can broken into three
separate strips (figure 4). Each strip of the mask
represents approximately 16
o
of viewing angle.
The user breaks off the appropriate number of
strips to provide the required viewing angle. For
example, to monitor a 48
o
angle (figure 5), break
off three strips from the mask (3 x 16
o
= 48
o
).
Figure 4
NOTE:
The two halves of the mask do not need to
be symmetrical, a different number of strips can be
broken off either side.
Frequency: 433.92 MHz
Operating range: -30˚F to 110˚F
Battery life: 6-12 months
