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- 1 -
Chapter
Chapter
Chapter
Chapter
1
1
1
1
Introduction
Introduction
Introduction
Introduction
Warning
Warning
Warning
Warning
Read
Read
Read
Read
Safety
Safety
Safety
Safety
Information
Information
Information
Information
before
before
before
before
using
using
using
using
the
the
the
the
meter.
meter.
meter.
meter.
S
S
S
S
ummarize
ummarize
ummarize
ummarize
The meter is a handled, battery-operated tool for measuring electrical parameters. It has all the features of a digital millimeter
and measure AC voltage, DC voltage, AC current, DC current, resistance, capacitance, frequency, duty cycle ratio, dBm, TC,
RTD,
Diode
Diode
Diode
Diode
Test,
Test,
Test,
Test,
and
Continuity
Continuity
Continuity
Continuity
Check
Check
Check
Check
.
Besides, it has features like:
Large LCD screen could display the three characteristic of one input signals.
Different reference impedance for dB measure function.
AUTO HOLD, DISPLAY HOLD and PEAK HOLD to display the measuring value.
Panel calibration function.
Three convenient data recording modes: LOG mode, MANUAL mode, and COMP mode.
USB-IR jack to connect with a PC
Open-case
Open-case
Open-case
Open-case
Inspection
Inspection
Inspection
Inspection
Open the case to check, if the meter is damaged or something is missing, contact the place of purchase immediately. Contact
the distributor for information about DMM accessories.
Accessories: A copy of user’s manual
A set of
CF-733370
industrial test lead
One USB to UART Bridge Controller (USB_DMM)
DMMVIEW_ A disk
Options:
K-TYPE TC
Safety
Safety
Safety
Safety
Information
Information
Information
Information
The meter complies with IEC61010.1-93 Over voltage
Ⅱ
Pollution Degree 2. Use the meter only as specified in this manual.
Otherwise, the protection provided by the meter may be impaired.
A
Warning
Warning
Warning
Warning
identifies conditions and actions that pose hazards to the user.
A
Caution
Caution
Caution
Caution
identifies conditions and actions that may damage the meter or the equipment under test.
A
Notice
Notice
Notice
Notice
identifies symbols of the operation and explanations of the features. International symbols used on the meter and in
this manual are explained in Table 1-1.
Warning
Warning
Warning
Warning
To
To
To
To
avoid
avoid
avoid
avoid
possible
possible
possible
possible
electric
electric
electric
electric
shock
shock
shock
shock
or
or
or
or
personal
personal
personal
personal
injury,
injury,
injury,
injury,
follow
follow
follow
follow
these
these
these
these
guidelines
guidelines
guidelines
guidelines
...
.
Use
Use
Use
Use
the
the
the
the
meter
meter
meter
meter
as
as
as
as
the
the
the
the
instructions
instructions
instructions
instructions
of
of
of
of
the
the
the
the
producer;
producer;
producer;
producer;
otherwise
otherwise
otherwise
otherwise
,,,
,
the
the
the
the
protective
protective
protective
protective
function
function
function
function
shall
shall
shall
shall
be
be
be
be
invalid.
invalid.
invalid.
invalid.
Do
Do
Do
Do
not
not
not
not
use
use
use
use
the
the
the
the
meter
meter
meter
meter
if
if
if
if
it
it
it
it
is
is
is
is
damaged.
damaged.
damaged.
damaged.
Before
Before
Before
Before
you
you
you
you
use
use
use
use
the
the
the
the
meter,
meter,
meter,
meter,
inspect
inspect
inspect
inspect
the
the
the
the
case.
case.
case.
case.
Look
Look
Look
Look
for
for
for
for
cracks
cracks
cracks
cracks
or
or
or
or
missing
missing
missing
missing
plastic.
plastic.
plastic.
plastic.
Pay
Pay
Pay
Pay
particular
particular
particular
particular
attention
attention
attention
attention
to
to
to
to
the
the
the
the
insulation
insulation
insulation
insulation
surrounding
surrounding
surrounding
surrounding
the
the
the
the
connectors.
connectors.
connectors.
connectors.
Take
Take
Take
Take
the
the
the
the
leads
leads
leads
leads
off
off
off
off
the
the
the
the
meter
meter
meter
meter
before
before
before
before
unlock
unlock
unlock
unlock
the
the
the
the
battery
battery
battery
battery
door.
door.
door.
door.
Inspect
Inspect
Inspect
Inspect
the
the
the
the
test
test
test
test
leads
leads
leads
leads
for
for
for
for
damaged
damaged
damaged
damaged
insulation
insulation
insulation
insulation
or
or
or
or
exposed
exposed
exposed
exposed
metal.
metal.
metal.
metal.
Check
Check
Check
Check
the
the
the
the
test
test
test
test
leads
leads
leads
leads
for
for
for
for
continuity.
continuity.
continuity.
continuity.
Replace
Replace
Replace
Replace
damaged
damaged
damaged
damaged
test
test
test
test
leads
leads
leads
leads
before
before
before
before
you
you
you
you
use
use
use
use
the
the
the
the
meter.
meter.
meter.
meter.
Do
Do
Do
Do
not
not
not
not
use
use
use
use
the
the
the
the
meter
meter
meter
meter
if
if
if
if
it
it
it
it
operates
operates
operates
operates
abnormally.
abnormally.
abnormally.
abnormally.
Protection
Protection
Protection
Protection
may
may
may
may
be
be
be
be
impaired.
impaired.
impaired.
impaired.
When
When
When
When
in
in
in
in
doubt,
doubt,
doubt,
doubt,
have
have
have
have
the
the
the
the
meter
meter
meter
meter
serviced.
serviced.
serviced.
serviced.
Do
Do
Do
Do
not
not
not
not
operate
operate
operate
operate
the
the
the
the
meter
meter
meter
meter
around
around
around
around
explosive
explosive
explosive
explosive
gas,
gas,
gas,
gas,
vapor,
vapor,
vapor,
vapor,
or
or
or
or
dust.
dust.
dust.
dust.
Do
Do
Do
Do
not
not
not
not
apply
apply
apply
apply
more
more
more
more
than
than
than
than
the
the
the
the
rated
rated
rated
rated
voltage,
voltage,
voltage,
voltage,
as
as
as
as
marked
marked
marked
marked
on
on
on
on
the
the
the
the
meter,
meter,
meter,
meter,
between
between
between
between
terminals
terminals
terminals
terminals
or
or
or
or
between
between
between
between
any
any
any
any
terminal
terminal
terminal
terminal
and
and
and
and
earth
earth
earth
earth
ground.
ground.
ground.
ground.
Make
Make
Make
Make
sure
sure
sure
sure
the
the
the
the
meter
meter
meter
meter
works
works
works
works
normally
normally
normally
normally
as
as
as
as
per
per
per
per
testing
testing
testing
testing
a
a
a
a
known
known
known
known
voltage.
voltage.
voltage.
voltage.
Do
Do
Do
Do
not
not
not
not
use
use
use
use
the
the
the
the
meter
meter
meter
meter
if
if
if
if
it
it
it
it
operates
operates
operates
operates
abnormally.
abnormally.
abnormally.
abnormally.
When
When
When
When
in
in
in
in
doubt,
doubt,
doubt,
doubt,
have
have
have
have
the
the
the
the
meter
meter
meter
meter
serviced.
serviced.
serviced.
serviced.
To
To
To
To
avoid
avoid
avoid
avoid
possible
possible
possible
possible
electric
electric
electric
electric
shock
shock
shock
shock
caused
caused
caused
caused
by
by
by
by
false
false
false
false
reading
reading
reading
reading
due
due
due
due
to
to
to
to
exist
exist
exist
exist
ting
ting
ting
ting
alternating
alternating
alternating
alternating
voltage
voltage
voltage
voltage
in
in
in
in
all
all
all
all
the
the
the
the
direct
direct
direct
direct
current
current
current
current
functions,
functions,
functions,
functions,
including
including
including
including
manual
manual
manual
manual
and
and
and
and
auto
auto
auto
auto
rang
rang
rang
rang
ing
ing
ing
ing
,,,
,
make
make
make
make
sure
sure
sure
sure
whether
whether
whether
whether
there
there
there
there
is
is
is
is
any
any
any
any
alternating
alternating
alternating
alternating
voltage
voltage
voltage
voltage
existing
existing
existing
existing
or
or
or
or
not
not
not
not
before
before
before
before
selecting
selecting
selecting
selecting
a
a
a
a
direct
direct
direct
direct
voltage
voltage
voltage
voltage
range
range
range
range
equals
equals
equals
equals
to
to
to
to
or
or
or
or
higher
higher
higher
higher
than
than
than
than
the
the
the
the
alternating
alternating
alternating
alternating
voltage.
voltage.
voltage.
voltage.
T
T
T
T
o
o
o
o
avoid
avoid
avoid
avoid
false
false
false
false
readings,
readings,
readings,
readings,
which
which
which
which
could
could
could
could
lead
lead
lead
lead
to
to
to
to
possible
possible
possible
possible
electric
electric
electric
electric
shock
shock
shock
shock
or
or
or
or
personal
personal
personal
personal
injury,
injury,
injury,
injury,
replace
replace
replace
replace
the
the
the
the
batteries
batteries
batteries
batteries
as
as
as
as
soon
soon
soon
soon
as
as
as
as
the
the
the
the
low
low
low
low
battery
battery
battery
battery
indicator
indicator
indicator
indicator
appears.
appears.
appears.
appears.
Do
Do
Do
Do
not
not
not
not
touch
touch
touch
touch
the
the
the
the
exposed
exposed
exposed
exposed
wine,
wine,
wine,
wine,
connector
connector
connector
connector
or
or
or
or
unused
unused
unused
unused
input
input
input
input
jack
jack
jack
jack
or
or
or
or
circuit
circuit
circuit
circuit
under
under
under
under
test
test
test
test
when
when
when
when
the
the
the
the
meter
meter
meter
meter
is
is
is
is
working.
working.
working.
working.
Use
Use
Use
Use
only
only
only
only
type
type
type
type
AA
AA
AA
AA
A
A
A
A
batteries,
batteries,
batteries,
batteries,
properly
properly
properly
properly
installed
installed
installed
installed
in
in
in
in
the
the
the
the
meter
meter
meter
meter
case
case
case
case
to
to
to
to
power
power
power
power
the
the
the
the
meter.
meter.
meter.
meter.
Use
Use
Use
Use
caution
caution
caution
caution
when
when
when
when
working
working
working
working
above
above
above
above
30
30
30
30
V
V
V
V
ac
ac
ac
ac
rms,
rms,
rms,
rms,
42
42
42
42
V
V
V
V
peak,
peak,
peak,
peak,
or
or
or
or
60
60
60
60
V
V
V
V
dc.
dc.
dc.
dc.
Such
Such
Such
Such
voltages
voltages
voltages
voltages
pose
pose
pose
pose
a
a
a
a
shock
shock
shock
shock
hazard.
hazard.
hazard.
hazard.
Avoid
Avoid
Avoid
Avoid
working
working
working
working
alone.
alone.
alone.
alone.
When
When
When
When
using
using
using
using
the
the
the
the
probes,
probes,
probes,
probes,
keep
keep
keep
keep
your
your
your
your
fingers
fingers
fingers
fingers
behind
behind
behind
behind
the
the
the
the
finger
finger
finger
finger
guards
guards
guards
guards
on
on
on
on
the
the
the
the
probes.
probes.
probes.
probes.
Connect
Connect
Connect
Connect
the
the
the
the
common
common
common
common
test
test
test
test
lead
lead
lead
lead
before
before
before
before
you
you
you
you
connect
connect
connect
connect
the
the
the
the
live
live
live
live
test
test
test
test
lead.
lead.
lead.
lead.
When
When
When
When
you
you
you
you
disconnect
disconnect
disconnect
disconnect
test
test
test
test
leads,
leads,
leads,
leads,
disconnect
disconnect
disconnect
disconnect
the
the
the
the
live
live
live
live
test
test
test
test
lead
lead
lead
lead
first.
first.
first.
first.
To
To
To
To
avoid
avoid
avoid
avoid
possible
possible
possible
possible
fire
fire
fire
fire
or
or
or
or
electric
electric
electric
electric
shock,
shock,
shock,
shock,
do
do
do
do
not
not
not
not
connect
connect
connect
connect
TC
TC
TC
TC
with
with
with
with
the
the
the
the
live
live
live
live
circuit.
circuit.
circuit.
circuit.
Caution
Caution
Caution
Caution
To
To
To
To
avoid
avoid
avoid
avoid
possible
possible
possible
possible
damage
damage
damage
damage
to
to
to
to
the
the
the
the
meter
meter
meter
meter
or
or
or
or
to
to
to
to
the
the
the
the
equipment
equipment
equipment
equipment
under
under
under
under
test:
test:
test:
test:
Set
Set
Set
Set
the
the
the
the
rotary
rotary
rotary
rotary
switch
switch
switch
switch
on
on
on
on
the
the
the
the
right
right
right
right
range.
range.
range.
range.
Do
Do
Do
Do
cut
cut
cut
cut
off
off
off
off
the
the
the
the
testing
testing
testing
testing
leads
leads
leads
leads
and
and
and
and
circuit
circuit
circuit
circuit
before
before
before
before
switching
switching
switching
switching
...
.
Forbid
Forbid
Forbid
Forbid
to
to
to
to
switch
switch
switch
switch
during
during
during
during
the
the
the
the
measuring
measuring
measuring
measuring
process.
process.
process.
process.
Summary of Contents for 98A
Page 7: ...7...