9 MG310-en-GB_V1.0 12/15
AC
VOLTAGE
MEASUREMENTS
WARNING
:
Risk
of
Electrocution.
The
probe
tips
may
not
be
long
enough
to
contact
the
live
parts
inside
some
240V
outlets
for
appliances
because
the
contacts
are
recessed
deep
in
the
outlets.
As
a
result,
the
reading
may
show
0
volts
when
the
outlet
actually
has
voltage
on
it.
Make
sure
the
probe
tips
are
touching
the
metal
contacts
inside
the
outlet
before
assuming
that
no
voltage
is
present.
CAUTION:
Do
not
measure
AC
voltages
if
a
motor
on
the
circuit
is
being
switched
ON
or
OFF.
Large
voltage
surges
may
occur
that
can
damage
the
meter.
Do
not
measure
voltage
higher
than
750V
AC.
Please
use
extreme
caution
to
avoid
high
voltage
electrical
shock
while
operating
this
instrument.
Disconnect
test
leads
from
tested
circuits
and
meter
terminals
after
testing.
V
V
AC
1.
Set
the
function
switch
to
the
V
(ACV)
position.
2.
Insert
the
black
test
lead
banana
plug
into
the
GUARD
jack
(2).
Insert
red
test
lead
banana
plug
into
the
V
jack
(3).
3.
Press
the
TEST
button
to
engage
the
testing
mode
(the
button
lamp
will
light).
4.
Touch
the
black
test
probe
tip
to
the
one
side
of
the
circuit.
Touch
the
red
test
probe
tip
to
the
other
side
of
the
circuit.
5.
Read
the
voltage
in
the
main
display.
6.
Press
the
TEST
button
again
to
disengage
the
test
mode
(the
lamp
will
switch
off)
before
removing
the
test
leads
from
the
circuit
under
test
and
from
the
meter.
