5
CB20-EU-EN-V1.2 5/13
Tips
for
automatic
scanning
The
receiver
works
by
comparing
the
strength
of
the
signal
received
from
one
breaker
to
the
next.
Observe
the
following
for
best
results.
Important:
The
first
strong
signal
encountered
may
not
be
the
strongest
there
is.
Do
not
stop
scanning
when
a
strong
signal
is
first
encountered.
It
is
essential
to
continue
scanning
until
all
the
breakers
are
tested
to
insure
the
correct
breaker
is
located.
Do
not
let
the
scanning
head
wander
around.
To
operate
well,
the
automatic
scanning
memory
needs
a
consistent
signal.
Keep
the
red
scanning
head
at
the
same
angle
relative
to
the
breaker
or
fuses
for
the
duration
of
the
test.
Keep
the
head
in
contact
with
the
breaker
during
each
sweep
to
ensure
consistency
in
the
proximity
of
the
head
to
the
breaker.
Test
only
the
same
side
of
each
breaker
during
a
test.
Pay
particular
attention
to
this
when
testing
a
vertically
hung
panel
which
may
have
neighboring
breakers
mounted
in
opposite
directions.
Always
reset
the
receiver
(away
from
the
distribution
board)
before
changing
any
test
condition.
Alternate
Scanning
Techniques
Due
to
the
differing
designs
of
circuit
breakers
it
may
sometimes
be
unclear
from
the
above
procedure
which
of
two
breakers
the
strongest
signal
comes
from,
particularly
if
it
appears
to
come
from
a
boundary
area
between
two
adjacent
breakers.
In
the
event
of
this
occurring,
one
of
the
following
variations
should
enable
clear
identification.
A:
Reset
the
receiver
and
scan
the
breakers
on
the
opposite
side
of
the
switch.
The
strongest
signal
may
be
found
at
the
top
of
the
breaker.
B:
Reset
the
receiver
and
scan
the
breakers
at
a
90°
angle
to
the
original
scan.
At
some
point
a
stronger
signal
will
be
found;
scan
at
the
new
angle.