FLIR
CM85
USER
MANUAL
Document
Identifier:
CM85
‐
en
‐
US_AB
24
5.11
Continuity
Test
Warning:
Do not do diode, resistance or continuity tests before you have removed the power from
capacitors and other devices under test during a measurement. Injury to persons can occur.
1.
Set
the
function
switch
to
the
position.
2.
Insert
the
black
probe
lead
into
the
negative
COM
terminal
and
the
red
probe
lead
into
the
positive
Ω
terminal.
3.
Use
the
MODE
button
to
select
continuity
measurement.
The
indicator
will
be
displayed.
4.
Touch
the
tips
of
the
probe
across
the
circuit
or
component
under
test.
5.
If
the
resistance
is
less
than
30
Ω
,
the
meter
will
beep.
5.12
Diode
Test
Warning:
Do
not
perform
diode,
resistance
or
continuity
tests
before
removing
the
power
from
capacitors
and
other
devices
under
test
during
a
measurement.
Injury
to
persons
can
occur.
1.
Set
the
function
switch
to
the
diode
position.
2.
Insert
the
black
probe
lead
into
the
negative
COM
terminal
and
the
red
probe
lead
into
the
positive
Ω
terminal.
3.
Use
the
MODE
button
to
select
the
diode
test
function.
The
diode
indicator
will
be
displayed.
4.
Touch
the
tips
of
the
probe
across
the
diode
or
semiconductor
junction
under
test.
5.
If
the
reading
is
between
±
0.40
and
+0.80V,
the
component
is
good;
bAD
or
O.L
displays
indicate
a
defective
component.
This
FLIR
meter
checks
diodes
using
an
alternating
test
signal
sent
through
the
diode
in
both
directions.
This
allows
the
user
to
check
the
diode
without
having
to
reverse
polarity
manually.
The
meter
display
will
show
±
0.4
~
0.7V
for
a
good
diode,
bAd
for
a
shorted
diode,
and
O.L
for
an
opened
diode.
See
Fig.
5.7
below:
Figure
5.7
Diode
Tests
- 0.4V
O.L
bAd
+ 0.4V