Center 262 Manual de usuario

MILLIAMP CLAMP METER

262

262-01 SEP. 2014

TABLE OF CONTENTS

1. SAFETY INFORMATION....................................................... 1

2. GENERAL SPECIFICATION................................................. 1

3. ELECTRICAL SPECIFICATION........................................... 2

3-1 Direct Voltage........................................................................ 2

3-2 Alternating Voltage ................................................................ 2

3-3 Direct Current ........................................................................ 2

3-4 Alternating Current ................................................................ 3

3-5 Resistance(Ω) ....................................................................... 3

3-6 Continuity( )........................................................................ 3

4. DESCRIPTION OF THE INSTRUMENT ............................. 4

4-1 Description of the display ...................................................... 4

4-2 Description of front and rear.................................................. 5

5. BUTTON INSTRUCTION....................................................... 6

5-1 HOLD Function...................................................................... 6

5-2 MAX/MIN Function ................................................................. 6

5-3 ZERO Function...................................................................... 6

5-4 BACKLIGHT Function ........................................................... 6

6. MEASURING INSTRUCTION ............................................... 7

6-1 ACA Measurement ................................................................ 7

6-2 DCA Measurement ................................................................ 8

6-3 ACV Measurement ................................................................ 8

6-4 DCV Measurement ................................................................ 9

6-5 Continuity Measurement........................................................ 9

6-6 Resistance Measurement.................................................... 10

7. BATTERY CHANGING ........................................................ 10

8. MAINTENANCE..................................................................... 11

Clamp Meter

1. 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 record in this manual.

Keep the fingers after the protection ring when measuring through the

test lead.

Chang the battery when the symbol appears to avoid incorrect

data.

Environmental Conditions

Operation Temperature: 0°C to 40°C(32°F to 104°F); < 80 % RH

Storage Temperature: -10°C to 60°C(14°F to 140°F); < 80 % RH

Explanation Symbols

Attention refer to operation Instructions.

Dangerous voltage may be present at terminals.

This instrument has double insulation.

Approvals: EN61010 300V CAT IV

2. GENERAL SPECIFICATION

Digital Display:

4 digital liquid crystal(LCD), Maximum reading 5000.

Polarity:

When a negative signal is applied, the signal appears.

Low Battery Indication:

When the battery is under the proper operation range, will appear

on the LCD display.

Sample Rate:

2 times/sec for digital data.

Clamp Meter

Power Source:

1.5V size AAA battery X 2

Typical battery Life: (without buzzer, backlight)

Type: 30 hours at DCA function;

60 hours at ACA and ACV function;

100 hours at DCV and Ohm function.

Auto Power Off:

If there is no key or dial operation for 30 minutes, the meter will power

itself off to save battery consumption. This function can be disabled by

press and hold the “ HOLD ” button then power the unit on

Over Load:

When the signal larger than the maximum will be show .

Maximum jaw opening:

23 mm

Dimensions:

206 x 76 x 33.5 mm

Weight:

262g (with battery)

Accessories:

Carrying case, Batteries, Test Lead & Instruction Manual.

3. ELECTRICAL SPECIFICATION

The accuracy specification is defined as ± ( percent of reading + digit )

At 23±5°C, ≦80 %RH.

3-1 Direct Voltage

Range Resolution Accuracy

50V / 300V 0.01V / 0.1V 1.0% + 2dgts

Input impedance: 1 M

3-2 Alternating Voltage (True RMS)

Range Resolution Accuracy(40~1KHz)

50V / 300V 0.01V / 0.1V 1.2% ±5dgts

Input impedance: 1 M

3-3 Direct Current

Range Resolution Accuracy

300.0mA 0.1mA

1.0% + 10dgts

3.000A 0.001A

10.00A 0.01A 3.0% + 10dgts

Influence of terrestrial magnetism: Less than ±1.0mA

Influence of CT opening and closing: Less than ±1.0mA

Clamp Meter

3-4 Alternating Current (True RMS)

Range Resolution Accuracy(50~60Hz)

300.0mA 0.1mA

1.0% + 5dgts

3.000A 0.001A

20.00A 0.01A

3-5 Resistance ()

Range Resolution Accuracy

500 0.1

1.0% + 2dgts

5K1

50K10

500K100

3-6 Continuity

Range Buzzer Function

Ohm < 100

Clamp Meter

4. DESCRIPTION OF THE INSTRUMENT

4-1 Description Of The Display

Auto power off indication

Polarity indication

Low battery indication

Alternative source indication

Direct source indication

Current measurement indication

Voltage measurement indication

ZERO indication

Data hold indication

Maximum indication

Minimum indication

Continuity test indication

Measurement unit

Resistance measurement indication

Measurement unit

Clamp Meter

4-2 Description Of Front And Rear

○

1Current Sensing Clamp

○

2Safety protection ring

○

3Backlight button

○

4Clamp opening handle

○

5Function select dial

○

6ZERO button

○

7Max/Min button

○

8Data hold button

○

9LCD display

○

10 COM input terminal

○

11 Positive input terminal

○

12 Battery cabinet

Clamp Meter

5. BUTTON INSTRUCTION

5-1 HOLD Function

It is possible to freeze the value displayed by pressing on the

"HOLD" button.

Press the "HOLD" button again to exit the Hold mode.

5-2 MAX/MIN Function

When the "MAX/MIN" button is pressed, the meter enter MAX/MIN

mode.

Press the button, to read MAX, MIN sequence. Press the button for

1 sec. or more to exit the MAX/MIN mode.

When you turn the rotary switch on the Continuity Test.

Press the "MAX/MIN" button to select Resistance measurement,

press the "MAX/MIN" button again to select continuity test with

buzzer.

5-3 ZERO Function

Press "ZERO" button to enter the Zero mode, ZERO Annunciate will

appear and Zero the display. The reading is stored as reference

value for subsequent measurement.

Press the " ZERO " button again, to exit the zero mode.

5-4 BACKLIGHT Function

When the " " button is pressed, the backlight will be turned on.

To disable the function, the button is pressed again. The backlight

will be automatically turned off about 30 seconds after it turned on.

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