2 MG310-en-GB_V1.0 12/15
Introduction
Thank
you
for
selecting
the
MG310
Insulation
Resistance
Tester.
This
meter
measures
insulation
resistance,
continuity,
and
AC
Voltage.
The
MG310
is
CAT
III
600V
AC
and
ideal
for
measuring
insulating
materials
and
electrical
equipment
such
as
transformers,
cables,
switches,
and
appliances.
Applications
include
maintenance,
testing,
and
inspection.
Proper
use
and
care
of
this
meter
will
provide
many
years
of
reliable
service.
Safety
This
tester
is
designed
and
manufactured
in
compliance
with
the
IEC61010
standard.
This
user
manual
includes
detailed
information
related
to
the
safe
operation
and
care
of
this
instrument.
Please
read
carefully
before
using
the
instrument.
Please
read
and
understand
this
user
manual
before
using
the
device.
Always
use
the
device
as
specified
in
the
user
manual,
retain
the
manual
for
future
use
and
check
the
www.extech.com
website
for
newer
versions
of
the
user
manual.
Misuse
of
this
device
may
cause
personal
injury
and
damage
to
the
instrument
and
connected
equipment.
This
symbol
on
the
instrument
indicates
that
for
safe
operation
the
user
must
use
the
instrument
as
described
in
the
user
manual.
Danger
icons
:
Alert
to
conditions
and
actions
that
may
cause
serious
or
fatal
injury.
Warning
icons:
Alert
the
user
to
the
potential
of
electric
shock.
Caution
icons
:
Alert
to
conditions
and
actions
that
may
cause
damage
to
the
instrument
or
that
may
affect
the
instrument
accuracy.
Danger
Do
not
measure
circuits
with
voltages
greater
than
750V
AC.
Do
not
use
this
instrument
in
areas
where
flammable
conditions
exist.
Do
not
use
this
instrument
in
areas
of
high
humidity.
Do
not
operate
this
instrument
with
wet
hands.
Do
not
touch
conductive
sections
of
the
test
leads
when
taking
measurements.
When
test
leads
are
shorted
and
connected
to
the
instruments
do
not
press
the
TEST
button.
Do
not
open
the
battery
cover
during
tests.
Do
not
touch
the
tested
circuits
or
wires
during
insulation
measurements.
