Safety Precautions
Injury
or
death
can
occur
even
with
low
voltages
and
low
current
.
It
is
extremely
important
that
you
read
these
safety
information
before
using
your
multimeter
.
Follow
all
safety
practices
and
proper
operating
procedures
for
equipment
being
tested
.
1
.
Exercise extreme caution when: Measuring voltage
above
20
volts
,
measuring
current
greater
that
10
mA
,
measuring
AC
power line with inductive loads, measuring
AC
power
line
during
electrical
storms
.
2
.
Always
inspect
your
multimeter
,
test
leads
and
accessories
for
sign
of
damage
or
abnormality
before
every
use
.
If
any
abnormal
conditions exist (i.e., broken
or
damaged
test
leads
,
cracked
case
,
display
not
reading
,
etc
.),
do
not
attempt
to
take
measurements
.
3
.
Never
ground
yourself
when
taking
electrical
measurements
.
Do
not
touch
exposed
metal
pipes
,
outlets
,
fixtures
,
etc
.,
which
might
be
at
ground
potential
.
Keep
your
body
isolated
from
ground
by
using
dry
clothing
,
rubber
shoes
,
rubber
mats
,
or
any
approved
insulating
material
.
4
.
Never
touch
exposed
wiring
,
connections
,
test
probe
tips
,
or
any live circuit conductors
when
attempting
to
make
measurements
.
5
.
Never
replace
the
protective
fuse
inside
the
mu ltimeter
with
a
fuse other
than
the
specified
or
approved
equal
fuse
.
Replace
only
with
same type of fuses. To avoid
electrical
shock
,
disconnect
the
test
leads
and
any
input
signals
before
replacing
the
fuses
.
6
.
Replace
only
with
same
type
of
battery
.
To
avoi d
electrical
shock
,
Disconnect
power
cord
from
live
power
source
,
and
the
test
leads
and
any
input
signals
before
replacing
the
battery
.
Ⅳ
Summary of Contents for M9803R
Page 1: ...Bench Multimeter Users Manual M9803R...
Page 8: ...Instrument Layout Figure 1 1 Bench Multimeter Features Forward 1 2...
Page 9: ...Figure 1 2 Bench Multimeter Features Backward 1 3...
Page 18: ...Measuring DC Volts Figure 2 1 DC Volts Measurements 2 2...
Page 20: ...Measuring AC Volts Figure 2 2 AC Volts Measurements 2 4...
Page 22: ...Measuring DC and AC Amps Figure 2 3 Amps Measurements 2 6...
Page 24: ...Measuring DC and AC Milliamps Figure 2 4 Milliamps Measurements 2 8...
Page 26: ...Measuring Frequency and Adaptive Figure 2 5 Measurement Frequency and Adaptive ADP 2 10...
Page 28: ...Measuring Capacitance Figure 2 6 Capacitance Measurements 2 12...
Page 30: ...Testing Diodes Figure 2 7 Diode Tests 2 14...
Page 32: ...Measuring Resistance and Continuity Figure 2 8 Resistance and Continuity Measurements 2 16...
