23Smkll
5
6
7
8
G
.
Frequency
(
Hz
)
±
(3.0%rdg+150dgt)
250V
DC
/
AC
effective
value
20KHz
200KHz
1Hz
10Hz
Range Resolution
Accuracy
Overload
protection
Input
sensitivity
:
2V
effective
value
.
Overload
protection
:
36V
DC
or
AC
effective
value
. (
within
10
sec
)
H
.
Diode
and
continuity
performance
test
.
the
positive
DC
current
is
approx
.
1mA
,
negative
voltage
is
approx
3V
open
voltage
is
approx
3V
Positive
voltage
drop
of
diode
Buzzer
sounds
,
the
resista
-
nce
is
less
than
(
70
±
20
)
Ω
36V
DC
/
AC
effective
value
Range
Resolution
threshold
Overload
protection
Overload
protection
:
250V
DC
or
AC
effective
value
.
CAUTION
:
Do
not
input
voltage
at
this
range
!
I
.
Temperature
(
℃
)
Range
Resolution
Accuracy
(-
20
～
1000
)
℃
0
.
1
℃
±
(0.8%rdg+40dgt)
≤
400
℃
±
(1.5%rdg+150dgt)
≥
400
℃
K
-
type
Thermoelement
(
banana
plug
type
,
temperature
: -
20
～
250
℃
)
4
.
OPERATION
4
-
1
.
P anel
description
1
.
LCD
:
display
the
measuring
value
.
2
.
POWER
:
turn
on
/
off
the
power
.
3
. :
turn
on
/
off
the
back
light
.
4
.
Continuity
testing
indicator
.
5
.
HOLD
key
:
press
it
,
the
presently
measured value is held on LCD and
"
H
"
symbol displays. press it again ,
"
H
"
symbol disappears, and the meter is
exited the holding mode.
6
.
knob
:
to
select
measuring
functio
and
range
.
7
.
Voltage
,
resistance
,
frequency
and
diode
jack
.
8
.
GND
,
the
anode
jack
of
test
capacitance
and
temperature
.
9
.
Jack
for
measuring
current
20A
.
10
.
Jack
for
the
cathode
of
capacitance
,
temperature
and
current
lower than 200mA.
4
-
2
.
DCV
measurement
1
.
Insert
the
black
test
lead
into
the
C
OM”jack
and
the
red
one
into
the
“
“ ” jack.
2
.
Set
the
bnob
to
a
proper
DCV
range
,
and
connect
the
leads
crossly
to
the electric circuit under test, LCD displays polarity and voltage under
test connected by the red test lead.
NOTE
:
①
.
Firstly
users
should
select
the
knob
to
the
highest
range
,
if
users
had no idea about the range of voltage under test, and then select
the proper range based on displaying value.
②
.
If
LCD
lead
displays
“
1
”
it
means
meter
is
over
the
max
.
Value
of
range, thus should select the knob to a higher range.
③
.
Do
not
input
a
voltage
over
DC
1000V
.
④
.
Be
careful
while
measuring
a
high
voltage
.
don
'
t
touch
the
high
circuit
.
4
-
3
.
ACV
measurement
1
.
Insert
the
black
test
lead
into
the
jack
and
the
red
one
into
the
“
C
OM”
jack.
“ ”
2
.
Select
the
knob
to
a
proper
ACV
range
,
and
then
connect
the
leads
crossly to the electric circuit under test.
NOTE
:
①
.
Firstly
users
should
select
the
knob
to
the
highest
range
,
if
users
had
no idea about the range of voltage under test, and then select the
proper range based on displaying value.
②
.
If
LCD
displays
it
means
meter
is
over
the
max
,
value
of
range
,
“
1
”
thus should set the knob to a higher range.
③
.
Do
not
input
a
voltage
over
750V
effective
.
④
.
Be
careful
while
measuring
a
high
voltage
,
touch
the
voltage
don
'
t
circuit.
4
-
4
.
DCA
Measurement
1
.
Insert
the
black
test
lead
into
the
jack
and
the
red
one
into
the
“
C
OM”
“mA”
jack (the Max 200mA) . or to
(the max 20A).
“
20A
”
2
.
Set
the
knob
to
a
proper
DCA
range
,
and
connect
the
leads
crossly
to
the
electric circuit under test; LCD displays polarity and current under test
connected by the red test lead.
NOTE
:
①
.
Firstly
users
should
selectt
the
knob
to
the
highest
range
,
if
users
had
no idea about the range of current under test, and then select the proper
range based on displaying value.If the LCD displays
means the
“
1
”
current is over range. thus should select the knob to g higher range.
②
.
Max
input
current
is
200mA
or
20A
(
subject
to
where
the
red
test
insert
to), too large current will damage the fuse.
4
-
5
.
ACA
Measurement
1
.
Insert
the
black
test
lead
into
the
jack
and
the
red
one
into
the
“
C
OM”
“mA”
jack (the Max 200mA) or to
(the Max 20A).
“
20A
”
2
.
Selectt
the
knob
to
a
proper
ACA
range
,
and
connect
the
leads
crossly
to
the electric circuit under test.
NOTE
:
①
.
Firstly
users
should
set
the
knob
to
the
highest
range
,
if
users
had
no
idea about the range of current under test, and then select the proper
range based on displaying value.If the LCD displays
it means the
“
1
”
current is over range. thus should select the knob to g higher range..
②
.
Max
input
current
is
200mA
or
20A
(
subject
to
where
the
red
test
lead
insert to), too large current will damage the fuse.
4
-
6
.
Resistance
Measurement
1
.
Insert
the
black
test
lead
into
the
jack
and
the
red
one
into
the
“
C
OM”
“ ”jack.
2
.
Set
the
knob
to
a
proper
resistance
range
,
and
connect
the
test
leads
crossly to the resistor under test.
NOTE
:
①
.
The
LCD
displas
while
the
resistance
is
over
the
selected
“
1
”
range. The knob should be adjusted to higher range. When
measuring value is over 1M
Ω
, the reading will take a few seconds
to be stable. It is normal for high resistance measuring.
②
.
When
input
terminal
is
in
open
circuit
,
overload
displays
.
③
.
When
measuring
in
line
resistor
,
be
sure
that
the
power
is
off
and all capacitors are released completely.
④
.
Do
not
input
any
voltage
at
resistance
range
.
even
the
meter
has voltage protection functions at this range!
4
-
7
.
Capacitance
Measurement
1
.
Set
the
knob
to
proper
capacitance
range
,
and
insert
the
measuring
accessories or test leads into
and
jack.
“
C
OM”
“
mA
”
terminal is for positive pole
“
C
OM”
“ ”
terminal is
“
mA
”
2
.
Connect
test
leads
with
the
two
points
of
capacitor
,
be
wary
of
polarity if necessary.
NOTE
:
①
.
If
the
capacitance
under
tested
is
over
the
max
,
value
of
selected
range, LCD displays
thus should set the knob to a higher
“
1
”
range.
②
.
It
is
norminal
that
there
is
a
remained
value
on
LCD
before
capa
-
citance measurement, and it doesn
'
t
affect the measurement.
③
.
When
measuring
at
large
capacitance
range
,
if
capacitor
is
crept
bably or broken, LCD displays some unstable value.
④
.
Release
the
capacitor
completely
before
measuring
capacitance
.
⑤
.
Unit
:
1uF
=
1000pF
,
1nF
=
1000pF
4
-
8
.
Diode
and
Continuity
performance
test
1
.
Insert
the
black
test
lead
into
the
jack
and
the
red
one
into
“
C
OM”
the “ ”jack (the polarity of red lead is “
＋
”
2
.
Set
the
knob
fo
" "
range
.
3
.
Forward
test
:
the
red
test
lead
connect
to
the
positive
of
the
tested
the red test lead connect to diode positive polarity and black test
lead connect to diode cathode polarity ,the reading is the approx
Value of diode forward volt drop.
4
.
Reverse
test
:
connect
test
leads
with
the
diode
under
tested
,
the
red
test lead connect to diode cathode polarity, and the black test lead
connect to diode posotive polarity,
ill be displayed on LCD.
“
1
”w
5
.
Insert
test
leads
to
two
points
of
tested
circuit
,
if
the
inner
buzzer
sounds and turn on light, the resistance is less than (70
±
20)
Ω
.
