Kaiweets ST500Y User manual
afety
Information
The
Meter
conforms
to
IEC61010-1
CAT.III
600V
overvoltage
safety
standard
and
pollution
level
2.
AWarning
identifies
conditions
and
procedures
that
are
dangerous
to
the
user.
Warnings
To
prevent
possible
electrical
shock,
fire,
or
personal
injury:
®
Read
all
safety
information
before
you
use
the
Product.
©
Do
not
alter
the
Product
and
use
only
as
specified,
or
the
protection
supplied
by
the
Product
can
be
compromised.
®
Comply
with
local
and
national
safety
codes.
Use
personal
protective
equipment
(approved
rubber
gloves,
face
protection,
and
flame-resistant
clothes)
to
prevent
shock
and
arc
blast
injury
where
hazardous
live
conductors
are
exposed
@
Limit
operation
to
the
specified
measurement
category,
voltage,
or
amperage
ratings.
®
Use
Product-approved
measurement
category
(CAT),
voltage,
and
amperage-rated
accessories
(probes,
test
leads,
and
adapters)
for
all
measurements.
Do
ot
touch
voltages
>30V
AC
RMS,
42V
AC
peak,
or
60V
DC.
®
Use
the
correct
terminals,
function,
and
range
for
measurements.
0
not
use
the
Product
around
explosive
gas,
vapor,
or
in
damp
or
wet
environments.
®
Do
not
operate
the
Product
with
covers
removed
o
the
case
open.
Hazardous
voltage
1
exposure
is
possible.
@
Examine
the
case
before
you use
the
Product.
Lok
for
cracks
or
missing
plastic.
Carefully
look
at
the
insulation
around
the
terminals.
@
Disconnect
power
and
discharge
all
high-voltage
capacitors
before
you
measure
resistance,
continuity,
capacitance,
or
a
diode
junction
@
Do
not
apply
more
than
the
rated
voltage,
between
the
terminals
or
between
each
terminal
and
earth
ground.
®
Remove
circuit
power
before
you
connect
the
Product
in
the
circuit
when
you
measure
current.
Connect
the
Product
in
series
with
the
circuit.
®
Measure
a
known
voltage
first
to
make
sure
that
the
Product
operates
correctly.
Do
not
use
test
leads
if
they
are
damaged.
Examine
the
test
leads
for
damaged
insulation,
exposed
metal,
or
if
the
wear
indicator
shows.
Check
test
lead continuity.
@
Remove
the
input
signals
before
you
clean
the
Product.
®
When
measuring,
please
connect
the
null
or
ground
wire
first,
then
the
live
wire;
when
disconnected,
please
disconnect
the
live
wire
first,
and
then
the
null
or
ground
wire.
®
Remove
the
probe
from
the
Meter
before
opening
the
case
or
battery
cover.
Do
not
use
the
Meter
when
the
Meter
is
disassembled
or
the
battery
cover
is
opened.
@
The Meter
can
only
be
used
together
with
the
probe
provided
to
meet
the
requirements
of
the
safety
standard.
If
the
probe
is
damaged
and
needs
to
be
replaced,
the
probe
of
the
same
model
and
electrical
specification.
Product
Familiarization
Overview
@
Alarm
Indicator
@ LCD
Screen
®
Function
Buttons
@
Current
Input
Jack
®
COM
Jack
®
Jack
for
other
functions
@
NCV
Sensor
Flashlight
Features
Function
Press
and
hold
the
*
button
for
about
2
seconds
to
turn
on/off
the
Meter.
Power
on
is in
SMART
mode
by
default.
Press
the
left
half
of
'[*
"
button
to
select
functions
from
right
to
left.
Press
the
right
half
of
“wr’)"
button
to
select
functions
from
left
to
right.
Press
"’
"
button
to
select
functions.
*Only
valid
for
voltage
test,
current
test
and
NCV/live
test.
Press
'
button
for
about
2
seconds
to
turn
on/off
flashlight.
Press'
@
"
button
to
turn
on/off
data
holding.
"HOLD
'
symbol
will
be
displayed
when
Display
HOLD
is
activated.
Press
'
button
to
SMART
mode.
'
SMART
'
symbol
will
be
displayed
when
SMART
mode
is
activated.
Symbole
Description
=
Damaged
Fuse
Fthe
fuse
is
burt
out,
the
symbol*
£
"
will
be
displayed.
In
current
test,
the
symbol
*
FUSE
will
also
be
displayed.
The
current
can
only
be
measured
after
replacing
the
good
fuse.
Auto
Power
Off
The
Auto
Power
Off
function
by
default
at
boot
and
'
(%)
*
symbol
will
be
displayed.
Without
any
operation
in
about
15
minutes,
the
Meter
will
automatically
turn
off.
1
minute
before
turn
off,
there
will
be
5
beeps.
Press
and
hold
both
power
off
function
will
be
canceled.
The
"(4)'
symbol
is
not
displayed.
278"
and
'
()"
buttons
to
turn
on
meter,
the
auto
Jack
Indication
When
switching
to
other
functions
the
light
of
the
corresponding
jack
will
flash
5
times
for
users
to
insert
the
right
test
leads
to
the
right
jack.
Mak
Measurements
When
connecting
the
test
leads
to
the
circuit
or
device,
connect
the
common
(COM)
test
lead
before
connecting
the
live
lead;
when
removing
the
test
leads,
remove
the
live
lead
before
removing
the
common
test
lead.
®
Do
not
measure
the
voltage
higher
than
600V,
otherwise,
the
Meter
may
be
damaged
@
Pay
attention
when
measuring
high
voltage
to
avoid
electric
shock
or
personal
injury.
®
Before
use,
test
the
known
voltage
or
current
to
confirm
that
the
Meter
is in
good
condition.
Turn
on
&
Ready
to
use
1.
Long
press
for
about
2
seconds
the
*
O
bution
to
tum
on
the
Meter,
*
Aubo
*
will
be
displayed
on
the
screen,
and
the
pointer
will
swing
by
itself,
indicating
the
SMART
mode
2.
Insert
the
red
probe
into
the
'
COM
"
jack.
3.
Touch
the
red
test
lead
and
the
black
test
lead
to
check
whether
they
are
normal.
The buzzer
will
beep
and
the
indicator
light
will
be
on
if
normal.
6
jack
and
the
black
probe
into
SMART
(AUTO)
Measurement
Mode
The Meter
defaults
to
SMART
mode.
In
the
SMART
mode,
the
Meter
can
test
DC
voltage,
AC
voltage,
resistance,
continuity,
it
selects
the
range
with
the
best
resolution
automatically.
Smart
Mode
Connect
the
test
leads
with
both
ends
of
the
circuit
or
resistance(in
parallel),
the
Meter
automatically
selects
measurement
based
on
the
input.
NOTE:
-t@h‘
[
_’%—fi‘
The
minimum
measurable
voltage
in
SMART
mode
is
0.8V.
Volts
AC
Volts
DC
When
measuring
resistance,
if
the
resistance
value
is
less
than
50Q,
the
Meter
will
beep
_lj/w
le
_
g/\/\k
.
and
the
indicator
will
light
up.
»
Resistance
Continuity
MANUAL
Measurement
Mode
The
Meter
defaults
to
SMART
mode.
In
the
SMART
mode,
press
the
'
(«we».}
button
to
switch
to
manual
mode
and
select
function.
AC/DC
Voltage
Measurement
1)
Tum
on
&
Ready
to
use
(look
at
page
6
)
2)Press
the
'«FUNCP
button
to
'Jf"
setting
3)'
%S
*
signal
will
be
displayed
on
the
screen,
indicating
DC
voltage
measurement.
4)Press
the
"
button
to
AC
voltage
test,"
A%
"signal
will
be
displayed
on
the
screen,
indicating
AC
voltage
measurement.
Resistance
Measurement
1)
Turn
on
&
Ready
to
use
(look
at
page
6)
2)
Press'
«FUNCP'
button
to
select
'
Q'
gear."
Q
'
signal
will
be
displayed
on
the
screen,
indicating
the
resistance
measurement.
NOTE:
Do
not
directly
measure
the
internal
resistance
of
micrometers,
galvanometers,
batteries,
and
other
instruments.
Continuity
Test
1)
Tum
on
&
Ready
to
use
(look
at
page
6)
2)
Press'«FUNCM'button
to*
©)
*
setting,
indicating
the
continuity
measurement.
3)
Connect
the
test
leads
to
both
ends
of
the
circuit
under
test
(in
parallel),
4)
If
the
resistance
of
the
circuit
or
resistor
under
test
is
less
than 50Q2
and
the
cirouit
is
on
position,
the
buzzer
wil
beep
and
an
indicator
light
willlight
up,
and
the
screen
will
display
the
measured
resistance
value.
Frequency/Duty
Measurement
1)
Turn
on
&
Ready
to
use
(
look
at
page
6)
2)
Press
the'«FUNCP'
button
to'
Hz%
"
sefting,
'
Hz
'
signal
and
'
%'
signal
will
be
displayed
on
the
screen,
indicating
Frequency/Duty
Ratio
testing.
Diode
Test
1)
Tum
on
&
Ready
to
use
(
look
at
page
6)
2)
Press'«FUNCP"
button
to"
Pt
setting,
indicating
the
diode
testing.
3)
Connect
red
test
lead
with
the
positive
polarity
of
the
diode,
black
test
lead with
the
negative
polarity
of
the
diode.
4)
If
the
test
leads
are
connected
reversely
with
the
diode
polarity,
'
OL
'
will
be
displayed.
Good
Diode
Bad
Diode
Forward
Bias
Reverse
Bias
Open
-
g;mm;d-
4
032
)
m
N
I'I‘
YR
Y
T
Capacitance
Measurement
1)
Turn
on
&
Ready
to
use
(
look
at
page
6)
2)
Press'«FUNC»'button
to*
1€
*
setting,
'
nF
*
signal
will
be
displayed
on
the
screen,
indicating
capacitance
testing.
*
Before
measuring
the
capacitor,
discharge
the
capacitor
to
avoid
damage
to
the
Meter.
*
If
the
capacitance
is
large,
it
may
take
a
long
time
for
the
reading
to
stabilize.
Temperature
Measurement
1)
Turn
on
&
Ready
to
use
(
look
at
page
6)
2)
Insert
the
positive
pole
of
the
K-type
thermocouple
into
the
and
the
negative
pole
into
the
'
COM
'
jack.
3)
Press
the
'«FUNCP'
button
to
'
°C/°F
*
setting,
'
°C
'signal
and'
F
"
signal
will
be
displayed
on
the
screen,
indicating
temperature
testing.
4)
Touch
to
the
object
being
measured.
5)
The
reading
may
take
few
seconds
to
be
stable.
Non-contact
AC
Voltage
Detection
Live
Wire
Detection
1)
Turn
on
&
Ready
to
use
(
look
at
page
1)
Turn
on
&
Ready
to
use
(
ook
at
page
6)
6) 2)
Press
the'«FUNCP
button
to"
NCV
*
2)
Press
the'«FUNC"
bution
to
"
NCY
3)
Press
the
'
SEL
"
button
to*
LIVE
'
mode.
*
setting,
'
NCV
'
signal
will
be
displayed
on
the
screen.
jack
and
remove
the
black
probe.
3)
Place
the
NCV
probe
closer
to
the
5)
Touch
the
object
with
the
test
lead
point.
point
to
be
tested
gradually.
6)
When
the
indicator
light
lights
up
that
|
means
the
measured
position
for
the
==
‘L
)
i
===
H
|
fire
line,
please
be
careful!
1
When
the
Meter
detects
a
weak
signal,
the
green
indicator
will
light
up,
the
buzzer
wil
beep
in
a
slow
tone,
and
'
—-L
'
will
be
displayed
on
the
screen.
When
the
Meter
detects
a
strong
signal,
the red
indicator
will
light
up,
the
buzzer
will
beep
in
afasttone,
and
'
—H
"
will
be
displayed
on
the
screen.
12
AC/DC
Current
Measurement
1)
Tum
on
&
Ready
to
use
(
look
at
page
6)
2)
Insertthe
red
probe
into
the
'
A"
jack
and
the
black
probe
into
the
'
COM
*
jack.
The
Meter
will
automatically
adjust
to
the
'
7%
*
gear.
3)
"
BC
and*
mA
"
signal
will
be
displayed
on
the
screen,
indicating
DC
current
measurement.
Press
the
'
SEL
'
button,
'
mA
"
signal
and
'
&S
"
signal
will
be
displayed
on
the
screen,
indicating
AC
current
measurement.
Note:
®
When
measuring
AC
current,
the
frequency
will
be
displayed,
and
when measuring
DC
current,
the
ambient
temperature
will
be
displayed
on
the
screen.
®
"LEAD'
signal
will
be
displayed
on
the
screen
when
the
test
leads
are
connected
incorrectly,
please
insert
the red
test
lead
into
A’ Jack.
®
The
Meter
will
turn
to
the
current
testing
when
you
insert
the
lead
into
Jack
and
'
COM
"
Jack.
For
safety,
users
cannot
switch
the
functions.
®
Do
not
measure
current
>
10
A
in
this
gear,
in
case
of
the
fuse
burning.
4
13
pecirtications
Power
4x1.5V
AAA
batteries
|
Display
6000
counts
Fuse
Protection
|
F10A/250V
fuse
Sampling
Rate
|
Approx.
3
times/second
Environmental
Conditions
|
CAT.
Il
600V
Pollution
level
2,
Altitude
<
2000m
Work
Environment
0-40°C(<80%
RH,
<10°C
non
condensing)
Storage
Temperature
-10~60°C(<70%
RH,
remove
the
battery)
Temperature
Coefficient
|
0.1
x
accuracy/°C(<
18°C
or
>28°C)
MAX.
Voltage
between
terminals
and
earth
ground
[
DC/AC
600V
ccuracy
Specificat
Accuracy
is
specified
for
1
year
after
calibration,
at
operating
temperatures
of
18
°C
to
28
°C,
with
relative
humidity
at
0
%
to
80
%.
Accuracy
+
(%
of
Reading]
+
[Counts])
DC
voltage
AC
voltage
Range
|
Resolution
[
Accuracy
Range
|
Resolution
[
Accuracy
soomv_Joimv
[
0o
a)
6v
0.001V
+(0.8%+3)
#0.5%
Impedance:
6v
000V
|\
mpedance:
60v__
Jootv
N
P
o
rox
60V
0.01V
Approx.
10MQ
600v
|1V
PP
600V
v
Frequency
Response:
_40Hz~1kHz;
T-RMS|
Temperature
Unit__[Range
Accuracy
Unit
Range
Accuracy
o
|fococ
s
o
40°F~32°F
|+6°F
0°C-1000°C__[#2.0%
orz2°C
32°F-
1832°F
| +2.0%
ors4°F
Resolution:
1°C/1°F._Use
K-type
thermocouple
probe
Resistance
AC/DC
current
Overload
protection:
250V
Diode/Continuity
Range
|
Resolution
|
Accuracy
Range
|
Resolution
|
Accuracy
600Q
0.1Q
600mA
0.1mA
BkQ
0.001kQ
B6A
0.001A
(1.2%+3)
60kQ
0.01kQ
£(1.0%+5)
10A
0.01A
600ka
0.1kQ
Overload
protection:F10A/250V
fuse
6MQ
0.001MQ
Frequency
Response:40Hz~1
kHz;
60MQ
0.01MQ
£(1.5%+10)
T-RMS
»+
Display
diode
voltage
drop.
OCV
about
3V.
o1l)
<Approx.
50€2,Buzzer
will
sound
and
the
indicator
light
will
be
on.
16
Capacitance
Frequency/Duty
Range
|
Resolution
|
Accuracy
Range
|
Resolution
|
Accuracy
6nF
0.001nF
6Hz
0.001Hz
60nF
0.01
nF
60Hz
0.01Hz
600nF
|
0.1nF
600Hz
|
0.1Hz
+4.0%+9)
6KH
0.001
iz
.001
KHz
6
4F
0.001
4F
+1.0%+3)
60
uF
0.01
4F
60kHz
|
0.01kHz
600
F
_
[0.14F
600kHz
|
0.1kHz
6mF
0.001
mF’
6MHz
|
0.001MHz
+(5.0%+5)
60mF
|
0.01
mF
10MHz
[
0.01MHz
Overload
protection:
250V
1.0-99.0%
|
0.1%
+(1.0%+3)
Gverload
protection:
250V
Maintenance
Cleaning
1)
Turn
off
the
power
to
the
Meter
and
remove
the
test
leads.
2)
Wipe
the
case
with
a
damp
cloth
and
mild
detergent.
Dirt
or
moisture
in
the
terminals
can
affect
readings.
Warning
©
Always
keep
the
inside
of
the
Meter
clean
and
dry
to
prevent
electric
shock
or
damage.
Install
Batteries
{230
signal
will
be
displayed
on
the
screen
when
the
battery
is
low.
1)
Remove
test
leads
from
the
Meter
before
opening
the
case
or
battery
door.
2)
Remove
the
screw
and
remove
the
battery
door.
3)
Install
4
x
1.5V
AAA
batteries.
*Please
pay
attention
to
the
battery
polarity.
4)
Then
inserted
into
the
battery
door.
Install
and
tighten
the
battery
door
screw.
Warning
@
To
avoid
electric
shock
or
personal
injury
caused
by
wrong
reading,
please
replace
18
the
battery
immediately
when
the
battery
is
low.
Do
not
discharge
the
battery
by
shorting
it
or
reversing
its
polarity.
©
To
operate
and
maintain
the
Meter
safely,
please
take
out
the
battery
when
it
is
not
used
for
a
long
time
to
prevent
the
battery
leakage
from
damaging
the
product.
Replace
Fuses
*
£
"
signal
will
be
displayed
on
the
screen
when
the
fuses
are
blown,
current
testing
function
is
not
working,
please
change
the
fuses.
1)
Tum
off
the
Meter
power
and
remove
the
probes.
2)
Remove
the
screw
fixing
the
back
cover
and
remove
the
back
cover.
3)
Remove
the
bumt-out
fuse,
replace
it
with
a
new
one
of
the
specification(F10A/250V
fuse),
and
ensure
that
the
fuse
is
installed
in
the
safety
clip
and
clamped
tightly.
4)
Install
the
back
cover
and
fix
it
with
screws
Warning
®
Use
ONLY
a
fuse
with
the
amperage,
interrupt
voltage,
and
speed
ratings
specified.
©
Do
not
use
the
Meter
if
the
back
cover
is
opened.
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