FLIR
CM85
USER
MANUAL
Document
Identifier:
CM85
‐
en
‐
US_AB
18
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
Hn
=
(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,
…,
Hn
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.
5.6.3.8
VFD
Mode
(low
pass
filter)
The VFD mode eliminates high frequency noise in voltage measurements by means of a low-
pass filter. The VFD mode is designed for variable frequency drive (VFD) measurements. This
mode is available for measurements of AC current or voltage.
1. Use the navigation buttons to select
and activate the VFD mode
5.7
Non
‐
Contact
Voltage
Detector
Note:
Test
on
a
known
live
circuit
before
testing
on
an
unfamiliar
circuit.
1.
Hold
the
clamp
tips
of
the
meter
very
close
to
the
voltage
source.
2.
If
voltage
is
present,
the
non
‐
contact
voltage
alert
lamp
(see
section
4.1
Meter
parts)
illuminates
a
red
color.
CAUTION
If
the
non
‐
contact
voltage
alert
lamp
is
not
illuminated,
voltage
could
still
be
present.
