FLIR
CM82
USER
MANUAL
Document
Identifier:
CM82
‐
en
‐
US_AD
16
5.6.3.4
DC
Zero
Mode
The
DC
zero
feature
removes
offset
values
and
improves
the
accuracy
for
DC
current
measurements.
DC
Zero
mode
is
available
when
measuring
DC
or
AC+DC
current
in
Manual
select
mode.
1.
Ensure
that
there
is
no
conductor
in
the
clamp
jaws.
2.
Use
the
navigation
buttons
to
select
and
enable
DC
Zero
mode.
5.6.3.5
Frequency
Mode
In
Frequency
mode,
the
meter
measures
and
displays
the
frequency.
Frequency
mode
is
available
when
measuring
AC
current
or
voltage
in
Manual
select
mode.
Important
note:
Do
not
switch
to
the
Frequency
mode
until
the
meter
is
setup
and
actively
measuring
the
voltage
or
current
signal.
Use
the
navigation
buttons
to
select
and
enable
Frequency
mode.
5.6.3.6
MIN/MAX/AVG
Mode
In
Min/Max/Avg
mode,
the
meter
captures
and
displays
the
minimum
or
maximum
values
and
updates
only
when
a
higher/lower
value
is
registered.
The
meter
can
also
display
the
average
of
all
values
recorded
from
the
beginning
of
Min/Max/Avg
mode.
1.
Use
the
navigation
buttons
to
select
and
enable
Min/Max/Avg
mode.
2.
Press
the
OK
button
repeatedly
to
cycle
through
the
minimum,
maximum,
and
average
reading
displays.
The
corresponding
icons
are
displayed:
,
,
or
.
3.
Press
and
hold
the
OK
button
for
2
seconds
to
disable
Min/Max/Avg
mode.
5.6.3.7
Harmonic
Distortion
Mode
In
Harmonic
Distortion
mode,
the
meter
displays
the
distortion
percentage
value
for
the
first
25
harmonics
as
well
as
the
total
harmonic
distortion.
Harmonic
Distortion
mode
is
available
when
measuring
AC
current
or
voltage
in
Manual
select
mode.
The
harmonic
distortion
is
expressed
as
H
n
=
(RMS
of
an
individual
harmonic
n
)/(RMS
of
the
fundamentals)
×
100%.
1.
Use
the
navigation
buttons
to
select
and
enable
Harmonic
Distortion
mode.
2.
While
in
Harmonic
Distortion
mode,
use
the
LEFT
and
RIGHT
navigation
buttons
to
navigate
through
the
individual
and
total
harmonic
data.
H01,
H02,
…,
H
n
is
displayed.
3.
When
the
total
harmonic
distortion
is
displayed,
the
indicator
appears
in
the
upper
part
of
the
display
and
'thd'
is
shown
in
the
main
display.
4.
Press
the
OK
button
to
switch
the
display
between
Harmonic
Order
Indication
mode
and
Percentage
mode.
5.
Press
and
hold
the
OK
button
for
2
seconds
to
disable
Harmonic
Distortion
mode.