Center 221 Manual de usuario
300V CAT III
COM
600V
0 - 200
0 - 600 V
0 - 600 A
600V CAT II
OFF
V
A
V
A
300V CAT III
600V CAT II
HOLD
600A
MINI CLAMP METER
CONTENTS
TITLE
PAGE
I. Safety Information ………………………………... 1
Environmental Conditions…………………………….….. 1
Explanation of Symbols……………….…………………. 1
II. Specification……………………………………….…. 2
General Specification…………………………………….. 2
Electrical Specification………………………………….... 2
III. Instrument Familiarization…………………… 3
Symbol Definition…………………………………………..3
IV. Measuring Instruction…………………...………5
4.1 ACA measurement…………………………………. 5
4.2 ACV measurement…………………………….…… 6
4.3 Resistance measurement………………………….. 7
4.4 Continuity Test………………………………………. 8
V. Battery Changing…………………………………..9
VI. Maintenance………………………………………….9
MINI CLAMP METER Instruction Manual
1
I. Safety Information
Do not operate the tester if the body of meter or the test
lead look broken.
Check the main function dial and make sure it is at the
correct position before each measurement.
Do not perform resistance and continuity test on a live
power system.
Do not apply voltage between the test terminals and test
terminal to ground that exceed the maximum limit refer in
this manual.
Exercise extreme caution when measuring live system with
voltage greater than 60V DC or 30V AC.
Keep the fingers after the protection ring when measuring
through the test lead.
Change the battery when the symbol appears to avoid
incorrect data.
Environmental Conditions:
Altitude up to 2000 meters.
Operating temperature:
0°C ~ 40°C, <80% RH, non-condensing
Storage temperature: -
10°C ~ 60°C, <70% RH, battery removed
Pollution Degree: 2
Explanation of Symbols:
Attention! Refer to operation Instructions.
Dangerous voltage may be present at terminals.
This instrument has double insulation.
Approvals:EN61010 600V CAT II 300V CAT III
MINI CLAMP METER Instruction Manual
2
II. Specification
General Specification:
Digital Display:
3 1/2 digits LCD display with maximum reading 1999
Over Load:
When the indication is larger than the 1999 counts, the LCD
will show 1000 with blinking 1
Sample Rate:
2 times/sec
Low Power Indication:
When the battery is under the proper operation range,
symbol will appear on the LCD display.
Power Source: UM-4 or AAA 1.5V battery x 2.
Clamp opening size: 25mm
Dimension (L x W x H) :
187x50x29mm, 7.36x1.97x1.14 inch
Weight: 210g( include battery)
Accessory:
Instruction Manual, Carrying Case, Test lead, Battery
1.5Vx2
Battery Life: 1000 hr approx. (alkaline battery)
Electrical Specification:
The accuracy specification is defined as
±
( …%reading
＋
…count )
At 23±5℃, ≦80 %RH
ACA (Autorange)
Range
Resolution Accuracy ( 50Hz~60Hz) Overload Protection
200A 0.1A
600A 1A 2%+5 660Arms
MINI CLAMP METER Instruction Manual
3
ACV (Autorange)
Range
Resolution Accuracy (50Hz~500Hz) Overload Protection
200V 0.1V
600V 1V 1.5%+5 660Vrms
Ohm ( Ω)
Range Resolution Accuracy MAX Test Voltage Overload Protection
200
Ω
0.1
Ω
1.9%+3 1.6V
DC
500Vrms
Continuity (
)
Range
Active Region MAX Test Voltage Overload Protection
<100 Ohm
1.6V
DC
500Vrms
III. Instrument Familiarization:
Symbol Definition:
Ohm Indicator
Ampere Indicator
Voltage Indicator
Continuity
Data Hold
Low Battery
Alternate Signal
Digital Reading
MINI CLAMP METER Instruction Manual
4
COM
600V
600V CAT II
300V CAT III
V
V
A
0 - 600 V
0 - 200
0 - 600 A
A
OFF
HOLD
600V CAT II
300V CAT III 600A
Instrument Familiarization:
{Current Sensing Clamp Positive input terminal
|Safety protection ring Function select dial
}Clamp opening handle Data hold button
~LCDdisplay
COM input terminal
MINI CLAMP METER Instruction Manual
5
600A
A
0-600A
600V
600VCATII
300VCATIII
COM
V0-600V
0-200
V
OFF
A
HOLD
600VCATII
300VCATIII
300V CAT III
COM
600V
0 - 200
0 - 600 V
0 - 600 A
600V CATII
OFF
V
A
V
A
300V CATIII
600V CATII
HOLD
600A
IV. Measuring Instruction:
4.1 ACA measurement:
Switch the function selector to A~ range.
Open the clamp by pressing the jaw-opening handle and
insert the cable to be measured into the jaw.
Close the clamp and get the reading from the LCD panel.
Note:
Before this measurement, disconnect the test lead with
the meter for safety.
In some occasion that the reading is hard to read, push
the HOLD button and read the result later.
CORRECT
INCORRECT
MINI CLAMP METER Instruction Manual
6
4.2 ACV measurement:
Switch the function selector to V~ range.
Connect red test lead to “+” terminal and black one to the
“ COM “ terminal.
Measure the voltage by touch the test lead tips to the test
circuit where the value of voltage is needed.
Read the result from the LCD panel.
600V
600V CAT II
300V CAT III
0 - 600 V
0 - 200
0 - 600 A
OFF
600V CAT II
300V CAT I II
COM
V
A
V
A
HOLD
600A
MINI CLAMP METER Instruction Manual
7
4.3 Resistance measurement:
Switch the function selector to range.
Connect red test lead to “+” terminal and black one to the
“ COM ” terminal.
Connect tip of the test leads to the points where the value
of the resistance is needed.
Read the result from the LCD panel.
Note:
When take resistance value from a circuit system, make
sure the power is cut off and all capacitors need to be
discharged.
COM
A
V
600V
300V CAT III
600V CAT II
0 - 600 A
0 - 200
0 - 600 V
A
V
OFF
HOLD
300V CAT III
600V CAT II 600A
MINI CLAMP METER Instruction Manual
8
COM
A
V
600V
300V CAT III
600V CAT II
0 - 600 A
0 - 200
0 - 600 V
A
V
OFF
HOLD
300V CAT III
600V CAT II 600A
4.4 Continuity Test:
Switch the function selector to range.
Connect red test lead to “+” terminal and black one to the
“ COM ” terminal.
Connect tip of the test leads to the points where the
conducting condition needed.
If the resistance is under 100Ω, the beeper will sound
continuously.
Beeper
600V
600V CAT II
300V CAT III
0 - 600 V
0 - 200
0 - 600 A
OFF
600V CAT II
300V CAT III
COM
V
A
V
A
HOLD
600A
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