22
TOP VIEW
= Infrared beam zone
Triggering the detector when
set to “least sensitive”
(Default setting)
Figure 6 – least
sensitive trigger
In
figure 6
, a body moving from position 1 to
position 2, into the infrared beam zone, will create a
pulse. Moving from position 2 to 3, out of the other
side of the same infrared beam zone, will create a
second pulse. Additional movement from position 3
to 4 will create a third pulse. If the detector is set to
“least sensitive” (default) and the body moves from
position 1 to position 4 within 10 seconds then the
detector will have received 3 pulses in 10 seconds.
This means the detector will have made a valid
movement detection and will trigger, indicated by
the red light (only if in test mode or normal mode
but not in IPS mode).
This also applies if moving in the opposite direction
to the
figures 8 and 9
.
Figure 7 – least
sensitive trigger
Figure 7
shows another way in which the detector
may be triggered when the detector is set to “least
sensitive”.
