Appendix B: Transmitter Installation
CommPact Installation Manual
90
LED
should
only
be
disabled
after
successfully
walk
testing
the
detector.
Changing Lenses
To
change
a
lens,
release
the
cavity
seal
using
a
small
screwdriver
and
fix
the
new
lens
into
place
with
the
smooth
side
facing
outwards.
Verify
that
the
word
TOP
is
located
at
the
top
of
the
lens
(alternatively
a
notch
may
appear
on
the
bottom
edge
of
the
lens)
before
snapping
the
cavity
seal
back
into
place.
Battery Replacement
In
case
of
a
low
battery
(2.5
V
and
below),
the
sensor
low
battery
condition
is
reported
to
the
Control
System
and
low
battery
message
is
displayed
To
replace
a
battery:
Open
the
housing
by
removing
the
front
cover
(see
Installation
Instructions),
replace
the
battery,
and
close
the
front
cover.
Close
the
front
cover
immediately
after
each
battery
replacement.
Figure B- 4: Lens Coverage Diagrams EL-2645 (left) and EL-2645PI (right)
The
diagram
shows
the
coverage
pattern
for
the
detector
fitted
with
a
standard
lens.
EL
‐
2645
complies
with
EN
‐
50131
2
‐
2
Grade
2
Class
II
Power
Supply
Type
C
Directional PIR (EL-2650XL)
The
EL
‐
2650XL
is
a
wireless
PIR
detector
that
is
able
to
distinguish
between
permitted
and
non
‐
permitted
motion.
This
allows
the
occupants
free
movement
within
the
premises
while
detecting
intrusion
via
doors
or
windows.
The
detector
implements
a
feature
to
combat
the
problem
of
multiple
transmissions,
which
drastically
reduce
the
life
of
the
batteries.
After
a
transmission
is
made,
the
EL
‐
2650XL
initiates
a
delay
of
approximately
three
minutes
during
which
transmissions
will
not
be
sent.
The
detector
operates
in
two
selectable
modes:
Curtain
and
Directional.
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