EX35x
‐
en
‐
GB_V1.2
12/15
10
Voltage
Measurements
CAUTION
:
When
connecting
the
test
leads
to
the
circuit
or
device
under
test,
connect
the
black
lead
before
the
red;
when
removing
the
test
leads,
remove
the
red
before
the
black
lead.
For
safety,
be
sure
to
measure
a
known
voltage
before
using
the
instrument
on
an
unknown
circuit
AC
Voltage
Measurements
1.
Insert
the
black
test
lead
banana
plug
into
the
negative
(COM)
jack
and
the
red
test
lead
banana
plug
into
the
positive
(V/
Ω
)
jack.
2.
Turn
the
function
switch
to
the
or
the
m
position.
3.
Press
the
M
button
to
select
AC
or
DC
(EX355
only)
4.
The
meter
defaults
to
the
Auto
Range
mode
(Auto
displayed
on
LCD).
Press
the
R
button
to
access
the
manual
range
mode.
Press
the
R
button
to
step
through
the
ranges.
Press
and
hold
the
R
button
to
return
to
the
Auto
Range
mode
(Auto
will
be
displayed).
5.
Touch
the
test
probe
tips
to
the
circuit
under
test.
6.
Read
the
digital
value
of
the
measurement
in
the
display.
The
display
will
also
indicate
the
proper
decimal
point
and
measurement
type/units
symbols.
7.
Use
the
Hz/%
button
to
view
the
frequency
(Hz)
or
the
duty
cycle
(%)
of
the
measured
voltage
Fig
4
‐
1
AC
VOLTAGE
MEASUREMENTS
%
Duty
Cycle
Note
:
Duty
Cycle
measurements
are
AC
only
for
this
meter.
Measurement
signals
must
be
‘zero
crossing’
and
must
reach
‐
0.7V
for
the
meter
to
properly
display
Duty
Cycle
%.