Users Manual

Users Manual
Table of Contents
Safety Information ……………………..……………… 1
Important Safety Instructions ………………….… 1
Symbol Explanation …………………………….… 4
Your Digital Multimeter …………………..…………….. 5
Introduction ………………….……..……………… 5
Names of Components …………………..………. 8
LCD Display ……………………………..………. 10
Other Functions …………….……………..………. 11
Making Measurements .……………………………….. 12
Introduction ………………….……..……………… 12
Measuring DC/AC Volts …………..…….………. 13
Measuring DC/AC Milliamps ………………. 15
Measuring DC/AC Amps …………….…….. 17
Measuring Resistance and Continuity ………… 19
Measuring Capacitance ………………………... 21
Measuring Inductance ………………..…………. 23
Measuring Frequency ……………….………….. 25
Measuring Temperature ………………………... 27
Diode Testing ………………..….…………...….. 29
TTL Logic Testing ……………….…………...….. 31
Transistor Testing ………..……………….……….. 32
User Maintenance ………………………..………….. 33
Replacing the batteries ………………….……… 33
Replacing the Fuses ……………………………… 34
Others ……………………………………………… 35
Specifications …………………………..……………. 36
General Specifications ……………………..…… 36
Resolution and Accuracy ………………………… 37
Safety Information
READ THIS MANUAL CAREFULLY BEFORE
USING THIS MULTIMETER!
The digital multimeter has been designed according
to
IEC1010-1
concerning
safety
requirements
for
electrical measuring instruments with an overvoltage
category (1000V CAT
) and pollution 2.
Important Safety Instructions
Injury or death can occur even with low voltages
and low current. It is extremely important that you read
this safety information before using your multimeter.
Follow all safety practices and proper operating
procedures for equipment being tested.
1
Disconnect
the
power
and
discharge
high-voltage capacitors before testing in Ohms,
Continuity, Diode, Capacitance, and other test
of on circuit
Inspect the test leads for damaged insulation
or exposed metal. Check test lead continuity.
Damaged leads should be replaced.
Do not use the instrument if it looks damaged.
Select the proper function and range for your
measurement.
User caution when working above 60V DC or
30V AC rms. Such voltages pose a shock
hazard.
Disconnect
the
live
test
lead
before
disconnecting the common test lead.
When using the probes, keep your fingers
away from probe contacts. Keep your fingers
behind the finger guards on the probes.
When measuring current, turn the power off to
the circuit being tested before connecting the
meter test lead in the circuit.
2
Place test leads in proper input terminals
Measurement time must fewer 10 seconds at
measuring great current every times, and the
interval time must more 15 minutes every
times.
Do not operate this multimeter in an explosive
atmosphere (i.e., in the presence of flammable
gases or fumes, vapor or dust.).
Never replace the protective fuse inside the
multimeter 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.
Replace only with same type of battery. To
avoid electrical shock, disconnect the test
leads and input signals before replacing the
battery.
Do not attempt calibration or service unless
trained
and
another
person
capable
of
rendering first aid and resuscitation is present.
3
Symbol Explanation
Attention! Refer to the user
manual
Dangerous voltage may be
present at terminals
Ground (Earth terminal)
AC(Alternating current)
DC(Direct current)
AC or DC
Battery
Fuse
Conforms to European Union
directives
Double insulation (Protection
Class
4
Ⅱ)
Your Digital Multimeter
Introduction
This meter is a portable professional measuring
meter with digital and 40 segment graph bar display. And
the meter has functions of date hold and back light, to
easily read measurement result. Overload protection and
low battery indication are provided, this meter is ideal for
use in the fields, workshop, school, hobby, and home
applications. Include following measuring functions:
DC/AC Volts
DC/AC Current
Resistance
Capacitance
Inductance
Frequency
Temperature
Continuity
Diode
Transistor
TTL logic
5
kHz H mH M k
mA
A
¡Cã
AC
uF
nF
V
mV
hFE
0
10
5
LIGHT
15
20
HOLD
/
Lx/Cx
ON
OFF
¡Cã
hFE
PNP NPN
200
2k
2m
20m
20k
200k
200m
Lx 2
2M
20
20M
20u
200m
2
2u
200n
20n
2n
10
Cx
10A
200m 20m 2m
20 V
200
1000
700
20kHz
1000V
CAT II
A
¡Cã mA Lx
COM
V Hz
1000V
700V
Figure 1
6
D ELECTRICA
E TEST LEADS
G BATTERY C
EETS:IEC1010
CAT III POLLU
VENT FIRE, US
10A/250V
0.5A/250V
6
5
.5V X 6 SIZE A
Figure 2
7
Names of Components
． LCD
Display measuring result and function, and
⑵．
other symbol.
key
When measuring AC, you must press down
this key at Volts or Current range.
⑶． LIGHT Key
When press down the key, Backlight will be on;
backlight will be self-off about six seconds
later.
⑷． Power Switch
When press down this key, the meter’s power
will be on.
⑸． Function/Range selector rotary switch
This switch selects the function and range.
⑹． Cx socket
This Cx socket is made testing capacitor.
⑺．10A input terminal (socket)
This is the positive input terminal for current
measurement (AC or DC) up to 10A.
8
．℃/mA/Lx input terminal (socket)
This
is
the
positive
input
terminal
for
temperature, mA or inductance.
⑼．COM input terminal (socket)
This is the negative (ground) input terminal for
all measurement modes.
⑽．V/Ω/Hz input terminal (socket)
This is the positive input terminal for volts,
resistance, frequency, diode continuity and
logic.
⑾．Transistor socket
This socket is made testing transistor.
⑿．HOLD key
To press down this key, the display value will
be locked and keep unchanged. To press the
key again, the locked status will be erased and
enter normal measurement status.
⒀．Lx/Cx key
This key must be pressed down when
measuring capacitance and inductance.
⒁．Bottom case
9
．Meter’s bracket
⒃．Battery cover
⒄．Special screws
The screws are used to fix battery.
LCD Display
kHz H mH M k
¡Cã
AC
uF
nF
V
mV
hFE
0
mA
A
5
10
Figure 3
15
20
⑴． The HOLD function is on.
⑵． AC measurement status.
⑶． Negative measurement value.
⑷． hFE Transistor measurement status.
10
． Indication low battery
⑹． Analog graph bar
⑺． TTL logic test, When “ ” display, indication
high logic; when “
” display, indication low
logic.
⑻． Display unit of measurement.
⑼． Continuity measurement status.
⑽． Display unit of measurement.
⑾． Diode measurement status.
⑿． Indication dangerous voltage (high volts).
Other Functions
⑴． Auto power off. The meter will auto power off
after about 10 minutes. Press up the key and
press down the key, the power will be on
again.
⑵． Buzzer. When doing continuity test, if the
resistance is smaller than 50Ω, the buzzer will
be sound. And when doing TTL logic test, if
measurement result is low logic, the buzzer
will be sound.
11
． Backlight. If the light is dark to make the
reading difficult when measuring, you can
press “LIGHT” key to open the back light.
⑷． Date
Hold. If you need data hold when
measuring, you can put on “HOLD” button, it
will hold the reading; if you put the button
again, data hold is not continue.
Making Measurements
Introduction
This chapter shows overall procedures for making
measurements in any of the rotary selector positions.
Necessary input connections are shown. And safety
information is showed.
12
Measuring DC/AC Volts
ON
OFF
¡Cã
hFE
PNP NPN
200
2k
2m
20m
20k
200k
200m
Lx 2
2M
20
20M
20u
200m
2
2u
200n
20n
2n
10
Cx
10A
200m 20m 2m
V
20 V
200
1000
700
20kHz
1000V
CAT II
A
¡Cã mA Lx
COM
V Hz
1000V
700V
Figure 4
． Connect the black test lead to the COM jack
and the red test lead to the V jack.
⑵． Set the range switch at the desired V range
position. Connect the test leads as shown
Figure 4.
⑶． When only the figure “OL” is displayed, it
13
indicates over range situation and the higher
range has to be selected.
． You can get a reading from LCD display. The
polarity of the red lead connection will be
indicated along with the voltage value.
⑸． When measuring AC volts, please press down
the “
” key; when measuring DC volts,
please press up the “
” key.
：
WARNING
Can’t measure higher than 1000V DC or
When the magnitude of the voltage to be
700V AC RMS.
measured is unknown, always set the
rotary selector at the highest range.
Don’t touch any electrical conductors, to
avoid electrical shock.
After measuring completely, disconnection
the test leads with the circuit to be
measured, and remove the test leads from
the meter.
14
Measuring DC/AC Milliamps
ON
OFF
¡Cã
hFE
PNP NPN
200
2k
2m
20m
20k
200k
200m
Lx 2
2M
20
20M
20u
200m
2
2u
200n
20n
2n
10
Cx
10A
mA
200m 20m 2m
20 V
200
1000
700
20kHz
1000V
CAT II
A
¡Cã mA Lx
COM
V Hz
1000V
700V
Figure 5
． Connect the black test lead to the COM jack
and the red test lead to the mA jack.
⑵． Set the range switch at the desired mA range
position. Connect the test leads as shown
Figure 5.
⑶． When only the figure “OL” is displayed, it
indicates over range situation and the higher
15
range has to be selected.
． You can get a reading from LCD display. The
polarity of the red lead connection will be
indicated along with the voltage value.
⑸． When measuring AC current, please press
down the “
” key; when measuring DC
current, please press up the “
” key.
：
WARNING
Can’t measure higher than 200mA in mA
range, otherwise the fuse will blowout.
After measuring completely, disconnection
the test leads with the circuit to be measured,
and remove the test leads from the meter.
16
Measuring DC/AC Amps
ON
OFF
¡Cã
hFE
PNP NPN
200
2k
2m
20m
20k
200k
200m
Lx 2
2M
20
20M
20u
200m
2
2u
200n
20n
2n
10
Cx
10A
A
200m 20m 2m
20 V
200
700
1000
20kHz
1000V
CAT II
A
¡Cã mA Lx
COM
V Hz
1000V
700V
Figure 6
． Connect the black test lead to the COM jack
and the red test lead to the 10A jack.
⑵． Set the range switch at the desired 10A range
position. Connect the test leads as shown
Figure 6.
⑶． When only the figure “OL” is displayed, it
17
indicates over range situation.
． You can get a reading from LCD display. The
polarity of the red lead connection will be
indicated along with the voltage value.
⑸． When measuring AC current, please press
down the “
” key; when measuring DC
current, please press up the “
” key.
：
WARNING
Can’t measure higher than 10A, otherwise
Measurement time must fewer 10 seconds
the fuse will blowout.
at measuring great current every times,
and the interval time must more 15 minutes
every times.
After measuring completely, disconnection
the test leads with the circuit to be
measured, and remove the test leads from
the meter.
18
Measuring Resistance and Continuity
ON
OFF
¡Cã
hFE
PNP NPN
200
2k
2m
20m
20k
200k
200m
Lx 2
2M
20
20M
20u
200m
2
2u
200n
20n
2n
10
Cx
10A
200m 20m 2m
20 V
200
1000
700
20kHz
1000V
CAT II
A
¡Cã mA Lx
COM
V Hz
1000V
700V
Figure 7
． Connect the black test lead to the COM jack
and the red test lead to the Ω jack.
⑵． Set the range switch at the desired resistance
range position. Connect the test leads as
shown Figure 7.
⑶． When only the figure “OL” is displayed, it
19
indicates over range situation and the higher
range has to be selected.
． You can get a reading from LCD display.
⑸． When doing continuity test, if the resistance is
smaller than 50Ω, the buzzer will be sound.
Connect the test leads as shown Figure 7.
：
WARNING
Before measuring resistance in circuit to be
sure power off; and to be sure capacitance
has been discharge fully.
After measuring completely, disconnection
the test leads with the circuit to be measured,
and remove the test leads from the meter.
20
Measuring Capacitance
ON
OFF
¡Cã
hFE
PNP NPN
200
2k
2m
20m
20k
200k
200m
Lx
2
2M
20
20M
20u
200m
2
2u
200n
20n
2n
10
200m 20m 2m
CAT II
A
Cx
10A
20 V
200
700
1000
20kHz
1000V
¡Cã mA Lx
COM
V Hz
1000V
700V
Figure 8
． Set the range switch at the desired Cx range
position and select proper range. and press
down “Lx/Cx” key.
⑵． Insert the capacitance to the test socket as
shown Figure 8.
21
． When only the figure “OL” is displayed, it
indicates over range situation and the higher
range has to be selected.
⑷． You can get a reading from LCD display.
：
WARNING
Before measuring capacitance in circuit to be
sure power off; and to be sure that has been
discharge fully.
After measuring completely, disconnection
the test leads with the circuit to be measured,
and remove the test leads from the meter.
22
Measuring Inductance
ON
OFF
¡Cã
hFE
PNP NPN
200
2k
2m
20m
20k
200k
200m
Lx 2
2M
20
20M
20u
200m
2
2u
200n
20n
2n
10
Cx
10A
200m 20m 2m
20 V
200
1000
700
20kHz
1000V
CAT II
A
¡Cã mA Lx
COM
V Hz
1000V
700V
Figure 9
． Connect the black test lead to the COM jack
and the red test lead to the Lx jack.
⑵． Set the range switch at the desired Lx range
position. Connect the test leads as shown
Figure9.
23
． When only the figure “OL” is displayed, it
indicates over range situation and the higher
range has to be selected.
⑷． You can get a reading from LCD display.
：
WARNING
Before measuring inductance in circuit to be
sure power off; and to be sure capacitance
has been discharge fully.
After measuring completely, disconnection
the test leads with the circuit to be measured,
and remove the test leads from the meter.
24
Measuring Frequency
ON
OFF
¡Cã
hFE
PNP NPN
200
2k
2m
20m
20k
200k
200m
Lx 2
2M
20
20M
20u
200m
2
2u
200n
20n
2n
10
Cx
10A
200m 20m 2m
V
20 V
200
700
1000
20kHz
1000V
CAT II
A
¡Cã mA Lx
COM
V Hz
1000V
700V
Figure 10
． Connect the black test lead to the COM jack
and the red test lead to the Hz jack.
⑵． Set the range switch at the desired 20 kHz
range position. Connect the test leads as
shown Figure10.
25
． When only the figure “OL” is displayed, it
indicates over range situation.
⑷． You can get a reading from LCD display.
：
WARNING
Determine that the amplitude level of the
signal to be measured is not greater than the
input voltage limit (250V).
After measuring completely, disconnection
the test leads with the circuit to be measured,
and remove the test leads from the meter.
26
Measuring Temperature
ON
OFF
¡Cã
hFE
PNP NPN
200
2k
2m
20m
20k
200k
200m
Lx 2
2M
20
20M
20u
200m
2
2u
200n
20n
2n
10
Cx
10A
200m 20m 2m
20 V
200
1000
700
20kHz
1000V
CAT II
A
¡Cã mA Lx
COM
V Hz
1000V
700V
Figure 11
． Insert the Thermocouple to the COM jack and
℃ jack.
⑵． Set the range switch at the desired ℃ range
position. Connect the test leads as shown
Figure11.
27
． Put the Thermocouple on the object to be
measured.
⑷． When only the figure “OL” is displayed, it
indicates over range situation.
⑸． You can get a reading from LCD display.
：
WARNING
The meter will display temperature inside
Don’t enter and measure other signal.
After measuring completely, disconnection
meter, if no thermocouple.
the
thermocouple
and
object
to
be
measured, and remove the thermocouple
from the meter.
28
Diode testing
ON
OFF
¡Cã
hFE
PNP NPN
200
2k
2m
20m
20k
200k
200m
Lx 2
2M
20
20M
20u
200m
2
2u
200n
20n
2n
10
Cx
10A
200m 20m 2m
20 V
200
1000
700
20kHz
1000V
CAT II
A
¡Cã mA Lx
COM
V Hz
1000V
700V
Figure 12
． Connect the black test lead to the COM jack
” jack.
and the red test lead to the “
⑵． Set the range switch at the desired “ ”
range position. Connect the test leads as
shown Figure12.
29
． The typical voltage drop should be about 0.6V
for silicon diode or 0.3V for germanium diode
⑷． If the diode is reversing biased or there is an
open circuit, The “OL” is displayed on LCD.
⑸． You can get a reading from LCD display.
：
WARNING
Before measuring in circuit to be sure power
off; and to be sure capacitance has been
discharge fully.
After measuring completely, disconnection
the test leads with the circuit to be measured,
and remove the test leads from the meter.
30
TTL Logic Testing
ON
OFF
¡ Cã
hFE
PNP NPN
200
2k
2m
20m
20k
200k
200m
Lx 2
2M
20
20M
20u
200m
2
2u
200n
20n
2n
10
Cx
10A
200m 20m 2m
20 V
200
1000
700
20kHz
1000V
CAT II
A
¡Cã mA Lx
COM
V Hz
1000V
700V
Figure 13
． Connect the black test lead to the COM jack
and the red test lead to the V jack.
⑵． Set the range switch at the desired “ ” range
position. Connect the test leads as shown
Figure13.
⑶． When only the figure “OL” is displayed, it
indicates over range situation and the higher
31
range has to be selected.
． When volts (logic level) ≤0.8V, the ”
” will be
displayed on LCD and buzzer will be sound.
When volts (logic level) ≥2.0V, the “
” will be
displayed.
Transistor Testing
ON
OFF
¡Cã
hFE
PNP NPN
200
2k
2m
20m
20k
200k
200m
Lx
2
2M
20
20M
20u
200m
2
2u
200n
20n
2n
10
Cx
10A
200m 20m 2m
20 V
200
1000
700
20kHz
1000V
CAT II
A
¡Cã mA Lx
COM
V Hz
1000V
700V
Figure 14
⑴． Set the range switch at the desired hFE range
position. Test as shown Figure14.
⑵． You can get a reading from LCD display.
32
User Maintenance
Replacing the Batteries
If the meter display “
” on LCD, the battery must
be replaced to maintain proper operation. Following
procedure to replacing the battery:
． Press POWER key to OFF. Disconnect test leads
from any live source and remove the test leads from
the input terminals.
⑵． Remove the two special screws on the battery
cover and open the cover.
⑶． Remove the exhausted battery and replace with a
new 9V battery (IEC6F22 JIS006P NEDA1604
type).
⑷． Don’t use the meter before the batter cover is in
place and fastened fully.
33
Replacing the Fuses
Following procedure to replacing the fuse:
． Press POWER key to OFF. And disconnect test
leads from any live source and remove the test
leads from the input terminals.
⑵． Remove the two screws on the battery cover
and open the cover.
⑶． Remove the blown fuse and replace with fuse
of the same size and rating. Make sure the new
fuse is centered in the fuse holder.
⑷． The
mA input
F0.5A/250V fast
terminal
is protected
by
blow ceramic fuse, Φ5×20.
The A input terminal is protected by F10A/250V
fast blow ceramic fuse, Φ6.3×32
⑸． Don’t use the meter before the batter cover is
in place and fastened fully.
34
Others
． Clean your digital multimeter with a damp cloth
and mild detergent. Do not use abrasives,
solvents, or alcohol.
⑵． If any faults or abnormalities are observed, the
meter can not be used any more and it has to
be checked out.
35
Specifications
General Specifications
Maximum voltage between terminals and earth
ground: 1000V.
Display: 1999 counts, automatic polarity. And 40
segments bar graph.
Over range: “OL” will be displayed.
Low battery: “
” will be displayed
Updates: approx. 3 times per second.
Data hold
Back light
Power supply: 9V IEC6F22, JIS006P, NEAD1604 type.
Temperature: operating 0~40°C
Storage -10~50°C
Relative humidity: 20~80%RH
Safety: Designed to IEC1010_1. 1000V CAT.
Size: 195×92×43(mm).
36
Resolution and Accuracy
Accuracy is given as ±(%reading +digits) at 18~28
℃,
relative humidity up to 80%.
All specifications assume less than 1 year.
⑴． DC Voltage
Range
Resolution
200mV
0.1mV
2V
0.001V
20V
0.01V
200V
0.1V
1000V
1V
Accuracy
(%rdg + digits)
±（0.5%+3）
±（0.8%+3）
Input impedance: 10MΩ
Overload protection: DC1000V or AC700V
37
． AC Voltage
Range
Resolution
200mV
0.1mV
2V
0.001V
20V
0.01V
200V
0.1V
700V
1V
Accuracy
(%rdg + digits)
±（1.0 %+5）
±（1.2%+5）
Input impedance: 10MΩ
Frequency range: 40~400Hz.
Overload protection: DC1000V or AC700V
⑶． DC Current
Range
Resolution
2mA
0.001mA
20mA
0.01mA
200mA
0.1mA
±（1.5%+5）
10A
0.01A
±（2.0%+5）
Overload protection:
38
Accuracy
(%rdg + digits)
±（1.0%+3）
mA --- F0.5A/250V Fuse
A ---- F10A/250V Fuse
． AC Current
Range
Resolution
Accuracy
(%rdg + digits)
2mA
0.001mA
20mA
0.01mA
200mA
0.1mA
±（2.0%+5）
10A
0.01A
±（3.0%+5）
±（1.2%+5）
Overload protection:
mA --- F0.5A/250V Fuse
A ---- F10A/250V Fuse
Frequency range: 40~400Hz.
⑸． Resistance
Range
Resolution
200Ω
0.1Ω
2kΩ
0.001kΩ
20kΩ
0.01kΩ
200kΩ
0.1kΩ
2MΩ
0.001MΩ
20MΩ
0.01MΩ
200MΩ
0.1MΩ
Accuracy
(%rdg + digits)
±（1.0%+3）
±（5.0%+3）
Open circuit voltage: 0.45V; Overload protection: 250Vp
39
． Capacitance
Range
Resolution
2nF
0.001nF
20nF
0.01nF
200nF
0.1nF
2 μF
0.001μF
20μF
0.01μF
Accuracy
(%rdg + digits)
±（4.0%+5）
⑺． Inductance
Range
Resolution
2mH
0.001mH
20mH
0.01mH
200mH
0.1mH
2H
0.001H
20H
0.01H
Accuracy
(%rdg + digits)
±（4.0%+5）
Overload Protection: F 200mA/250V fuse (quick acting,
resistance ≤1Ω)
，Internal impedance≤1kΩ
Tested Inductance: Q≥10
40
． Frequency
Range
Resolution
20kHz
0.01kHz
Accuracy
(%rdg + digits)
±（1.5%+5）
Sensitivity: 250mV rms and input no more 10V rms
Overload Protection: 250V
⑼． Temperature
Range
Resolution
-20~ 1000℃
1℃
Accuracy
(%rdg + digits)
±（3.0%+3）
Overload Protection: mA ---- F0.5A/250V
⑽． Transistor
Range
Function
Display: read approximate hFE value
hFE
(0-1000) of transistor under test (ALL
TYPE)
Base Current: approx. 10µA，Vce: approx. 2.8V
41
． Diode
Range
Resolution
1mV
Function
Display :read approximate
forward voltage of diode
Forward DC Current: approx. 1mA
Reversed DC Voltage: approx.2.8V
Overload Protection: 250V DC or rms AC
⑿． Continuity
Range
Function
Built-in buzzer will sound, if resistance is
lower than 50Ω.
Open circuit voltage: approx. 2.8V
Overload Protection: 250V DC or rms AC
⒀． TTL Logic
Range
Function
When logic level is less or on 0.8V, LCD
displays “
” and the buzzer produces
sound. When logic level is more and on
2.0V, LCD displays “
”.
Overload Protection: 250V DC or rms AC
42
HYS005129