isweek VC6056A User manual

TM
VC6056A
3 1/2digit Auto-ranging
Clamp meter
Manual

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3
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6
7
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10
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12
2
10
9
9
9
9
>1.2V
<50
Ω
(6). Diode measurement and Continuity test
Range Open voltage Beeper
Overload protection: 250V DC/AC RMS
Content
Ⅰ、Feature
Ⅱ、Safety Precaution
Ⅲ、General Descripetion
Ⅳ、Operation instruction
V、General specification
Ⅵ、Technological specification
Ⅶ、Service and Maintenance
4-1. DC voltage measurement
4-2. AC voltage measurement
4-3. DC current measurement
4-4.AC current measurement
4-5. Resistance measurement
4-6. Diode measurement and continuity test
4-7. Data hold
4-8. Max. Value Hold
4-9. Auto shut-off
4-10. Circuit protection
Ⅶ、Service and Maintenance
(1). The instrument is a precise measuring instrument. Please avoid
to using it in strong magnetic field, dusty atmosphere and corrosive
area so as to prolong the usage life.
(2). In order to guarantee accuracy, be no means, one should
enter when the instrument is in calibration condition or when its
internal circuit is being altered. Incase of calibration need, enter
website and proceed with panel calibration according to
instruction.
(3). Check battery level regularly. Remove the batteries if you
do not intend to use the unit for a long time.
(4). When changing battery, measurement of electricity should
be cut-off and instrument should be switched off. Remove the 2
screws from battery door and take away the old battery that needs
to be changed and renew with new.
(5). When cleaning the surface of instrument, it is advisable to
employ mild cleanser with a piece of dry cloth. Using hard and
corrosive matter with strong chemicals to clean instrument
surface is strongly forbidden.
(6). In case of spilt water or being soaked in water, normal
measurement should wait until water is dried up.

211
照本说明书相关安全注意事项操作所造成仪表或人身伤害，
本公司只承担仪表维修责任。
μ
1
2 3
4
5
6
7
8
0.1A/1A ±
(2.5%+5d)
200A/1500A
0.1A/1A
200A/1500A ±
(2.5%+5d)
200Ω ~2MΩ
20MΩ 10KΩ
0.1Ω~1KΩ±
±
（1%+3d）
（3%+3d）
MAX
250V
COM V
CAT
600V
V~ V
A~
TM
VC6056A
MAX HOLD
OFF
DCA AREO
A
V
AUT O
AC
(3). DC current measurement
Range Resolution Accuracy
(4). AC current measurement
Range Resolution Accuracy
AC frequency response: 50Hz
Display: sine- wave RMS
remark: in AC/DC current range, the guaranteed environment temper is 23℃±2℃
the reading is a little lower than the actual temper when in high temper environment;
instead in the low temper environment. The error is 5%
(5). Resistance measurement
Range Resolution Accuracy
Overload protection: 250V DC/AC RMS
Ⅰ、Feature
1. Adopt 3 1/2 digit auto-ranging A/D convertor;
2. Adopt type AAA battery and independent door;
3. Data hold and Max value Hold
4. 200A/1500A AC/DC current range, the resolution is 0.1A.
Ⅱ、Safety Precaution
Before the operation , please read the manual carefully.
The company only take the obligation for repairing the meter
if the operator use the meter not according the manual.
Ⅲ、General Descripetion
1. Jaw
2. Handle of the jaw
3. LCD screen
4. Function button
5. Rotary switch
6. V input terminal
7. COM input terminal
8. Input terminal
Input impedance: Approx. 10M
Frequency response: 40Hz~400Hz
Display : sine wave RMS(average value)
Ω

10 3
200mV~600V 0.1mV ±
（0.8%+3d）
2V-600V 1mV ±
(1.2%+3d)
MAX
250V
COM V
CAT
600V
V
TM
VC6056A
MAX HOLD
DCA AREO
mV
AUT O
DC
(1). DC voltage measurement
(2). AC voltage measurement
Input impedance: Aprox. 10MΩ
Range Resolution Accuracy
Range Resolution Accuracy
V、General specification
Max. Reading: 1999 auto polarity
Measuring method: double-integrated A/D convertor
Sampling: three times per second
Over load display: LCD display symbol ＂OL＂
Max. COM voltage: 500V DC/AC RMS
Work condition: 0℃～40℃; the relative humidity <80%
Storage condition: -10℃～50℃; the relative humidity < 85%
Power supply : three AAA batteries
Low voltage display:
Standby current: Approx. 20mA
Dimension: 244(L)X67(W)X38(H)
Diameter of the opening jaw: 35mm
Accessory: manual for the user, one set of test lead, batteries,
ox ford bag, Type K temperature probe.
Ⅵ、Technological specification
Ⅳ、Operation instruction
Precaution before operation:
1. The operator should read the manual firstly.
2. Break all of the connections before turning on the meter.
3. Check if the test leads are pluged properly
4. Check if the switch is in proper position.
5. View the LCD if there is low battery symbol “ ”
(Fig 4-1)
1. DC voltage measurement ( Fig 4-1)
1). Turn the rotary switch to the V , LCD displays the DC symbol
2). Plug the red test lead into the V jack and the black into the COM
jack respectively.
3). Connect the test leads to the tested load or the tested power.
4). View the reading. The red test lead connect to the positive.
5). The symbol appears indicates the red test lead
connected to the negative.
“ - ”

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MAX
250V
COM V
CAT
600V
V~
TM
VC6056A
MAX HOLD
DCA AREO
V
AUT O
AC
(Fig 4-2)
2. AC voltage measurement (Fig 4-2)
1). Select the V~ position, LCD display AC symbol.
2). Plug the red and test lead into the V jack and COM jack
respectively.
3). Connect the test leads to the tested power or load.
“ ”
7. Data hold
During the measuring, press HOLD button until hear DI sounds.
LCD displays H symbol and the meter in the HOLD mode.
The reading is locked. Press the button again to exit the mode.
“ ”
8. Max. Hold
During measuring DCV, ACV, ACA, press and hold the button until
hear DI sound. The symbol MAX appears and the meter in the Max.
Hold mode. Press the button again to exit the mode.
9. Auto shut -off
1). During the measuring, the meter will be in sleep mode when
there is no action in 15mins. Press any button to wake the meter up.
2). Press the HOLD button when turn on the meter, the function is
be cancelled.
3). Part circuit is still working after auto shut-off. If no use for long
time, please turn the switch to the OFF position to cut the supply.
10. Circuit protection function
During measurement, if the tested signal is more than 600V or
high voltage rush, the meter will be protected automaticlly and
LCD is locked. Please cut the supply at once. Turn on the meter
can reset the meter.

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8
（图示 4-3）
MAX
250V
COM V
CAT
600V
TM
VC6056A
MAX HOLD
DCA AREO
A
A
AUT O
DC
MAX
250V
COM V
CAT
600V
TM
VC6056A
MAX HOLD
DCA AREO
V
(Fig 4-6)
6. Diode and Continuity test (Fig 4-6)
Turn the rotary switch to the position, press the button
to change the mode. The meter is in the or mode. LCD display
or . In the mode, connect the red and black test lead to
the diode, LCD display the basic voltage of the diode. Ge: 05-0.7V
Si: 0.2-0.3V, instead , display OL; in the mode, if the resistance of
the tested element or the circuit is less than 50Ω, beeper alarm
and LCD display reading. If the resistance is more than 200Ω or
the circuit isbroken LCD display OL
3. DC current measurement (Fig 4-3)
1). Select the A position, LCD display DC symbol
2). Make the jaw clamp the tested conductive wire, input the meter
the tested current. The reading is not Zero after take off the meter
which is the remainence. Press the button to do Zero adjustment.
Please subtract the reading if the failed Zero adjust ment.
3). After Zero adjustment, clamp the conductor wire again as above
step and close properly. Get the reading from the LCD.

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MAX
250V
COM V
CAT
600V
A~
TM
VC6056A
MAX HOLD
DCA AREO
A
AUT O
AC
MAX
250V
COM V
CAT
600V
TM
VC6056A
MAX HOLD
DCA AREO
AUT O
Fig 4-4
4. AC current measurement (Fig 4-4)
1). Turn the function switch to the A~ position, LCD displays
AC symbol
2). Make the jaw clamp the tested wire in the geometry centre
of the jaw. Close the jaw properly. The reading is displayed
on the LCD.
( Fig 4-5)
4-5. Resistance measurement (Fig 4-5)
1). Select the position.
2). Plug the red and black test leads into COM ,Ω jacks respectively.
3). Connect the test leads to the tested load and get the reading
from LCD display screen.
4). LCD display OL if the tested load is more than 20MΩ.