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 de-
tection area from approximately 16˚ to 100˚. 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 sep-
arate strips (figure 4). Each strip of the mask rep-
resents approximately 16˚
of viewing angle. The
user breaks off the appropriate number of strips to
provide the required viewing angle. For example,
to monitor a 48˚ angle (figure 5), break off three
strips from the mask (3 x 16˚= 48˚).
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
figure 4
