Amprobe ACDC-400 Manuale utente

English

ACDC-400

Digital AC/DC Clamp-on

Multimeter

Users Manual

ACDC400_Rev001

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➊Inductive clamp jaw

➋Safety guard

➌Data HOLD key

➍Jaw trigger

➎Rotary selector

functions

➏ZERO key

➐RANGE R-H and key

➑MAX/MIN key

➒LCD display

➓COM jack

V/Ωjack

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ACDC-400

Digital AC/DC Clamp-on Multimeter

CONTENTS

Symbols............................................................................................................................5

Safety Information..........................................................................................................5

Unpacking and Contents ................................................................................................6

Introduction.....................................................................................................................7

Operation ........................................................................................................................7

Alignment marks .......................................................................................................7

Auto Power Off function ..........................................................................................7

R-H Range selection..................................................................................................7

Backlight function (�) .............................................................................................7

D-H function (DATA HOLD) ......................................................................................7

ZERO button: Relative display function ...................................................................7

MAX / MIN button .....................................................................................................8

Analog bargraph .......................................................................................................8

AC Voltage measurement .........................................................................................8

DC Voltage measurement .........................................................................................8

AC Current measurement..........................................................................................8

DC Current measurement..........................................................................................9

Resistance measurement...........................................................................................9

Continuity Test...........................................................................................................9

Maintenance and Repair ...............................................................................................9

Battery Replacement ..............................................................................................10

Speciﬁcations.................................................................................................................10

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SYMBOLS

Battery Refer to the manual

Double insulated Dangerous Voltage

Direct Current Earth Ground

Alternating Current Audible tone

Conforms to relevant

Australian standards. Complies with EU directives

Do not dispose of this

product as unsorted

municipal waste. Underwriters Laboratories.

[Note: Canadian and US.]

Application around and

removal from hazardous

live conductors is permitted

SAFETY INFORMATION

The ACDC-400 Series Digital Clampmeters conform to EN61010-1:2001; EN61010-•

2-032:2002; CAT III 600 V, class 2 and pollution deg.2

This instrument is EN61010-1 certiﬁed for Installation Category III (600V). It is•

recommended for use in distribution level and ﬁxed installations, as well as

lesser installations, and not for primary supply lines, overhead lines and cable

systems.

Do not exceed the maximum overload limits per function (see speciﬁcations) nor•

the limits marked on the instrument itself. Never apply more than 600 Vdc/600 V

ac rms between the test lead and earth ground.

Warnings and Precautions

Before and after hazardous voltage measurements, test the voltage function on•

a known source such as line voltage to determine proper meter functioning.

Disconnect the test leads from the test points before changing meter functions.•

Disconnected from the meter’s test leads before measuring current.•

Inspect the Clampmeter, test leads and accessories before every use. Do not use•

any damaged part.

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Never ground yourself when taking measurements. Do not touch exposed circuit•

elements or test probe tips.

Do not operate the instrument in an explosive atmosphere.•

To reduce the risk of ﬁre or electric shock, do not expose this product to rain or•

moisture.

The meter is intended only for indoor use. To avoid electrical shock hazard,•

observe the proper safety precautions when working with voltages above 60

VDC or 30 VAC rms. These voltage levels pose a potential shock hazard to the

user.

Before and after hazardous voltage measurements, test the voltage function on•

a known source such as line voltage to determine proper meter functioning.

Keep your hands/ﬁngers behind the hand/ﬁnger barriers (of the meter and the•

test leads) that indicate the limits of safe access of the hand-held part during

measurement.

Inspect test leads, connectors, and probes for damaged insulation or exposed•

metal before using the instrument. If any defects are found, replace them

immediately.

This Clamp-on meter is designed to apply around or remove from uninsulated•

hazardous live conductors. Individual protective equipment must be used if

hazardous live parts of the installation could be accessible.

Exercise extreme caution when: measuring voltage >20 V // current >10 mA //•

AC power line with inductive loads // AC power line during electrical storms //

current, when the fuse blows in a circuit with open circuit voltage >1000 V //

servicing CRT equipment.

Remove test leads before opening the case to change the battery.•

Disconnect circuit power and discharge all high-voltage capacitors before testing•

resistance,continuity, diodes, or capacitance.

To avoid false readings, which could lead to possible electric shock or personal•

injury, replace the batteries as soon as the low battery indicator () appears.

UNPACKING AND CONTENTS

Your shipping carton should include

1 ACDC-400

1 Test lead set

2 AAA - 1.5V Batteries

1 Users Manual

1 Carrying Case

If any of the items are damaged or missing, immediately return the complete

package to the place of purchase for an exchange.

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INTRODUCTION

The ACDC-400 Clamp-On meter is an average responding autoranging 400 Amp

/ 600 V clamp meter. The features include AC / DC voltage, AC / DC current,

Resistance, and Continuity tests.

This Instrument’s display also contains an analog bar graph.

OPERATION

Alignment marks (see Fig. 2)

Place conductor within the jaws at the intersection of the indicated marks as close

as possible to maximize the accuracy of the reading.

Auto Power Off function

In order to save battery life, your clampmeter powers down automatically after

approximately 30 minutes of inactivity. You can turn it back on by turning the

function selector switch to OFF and back to a measuring function. The instrument

does not power down while in MAX MIN mode. You can disable Auto Power Off by

pressing and holding the ZERO button while turning the meter ON.

R-H Range selection

Press R-H button < 1 second, to enable/disable manual range selection.

Backlight function (�)

Press Backlight button more than 1 second, enable/disable Backlight. To use the

backlight in the ‘Autoranging’ mode, press and hold the R-H button for more than

2 seconds.

D-H function (DATA HOLD)

Freezes the reading present on the LCD at the moment the button is pressed.

To use this button feature, set up the meter for the type of measurement and

range desired. Connect the test leads or clamp jaws to the circuit/component to

be measured, then press Hold. The LCD reading will freeze and display “.” You

may now remove the test leads and the reading will not change until you press D-H

again.

ZERO button: Relative display function

The ZERO mode displays the difference between the actual reading and a reference

value. It may be used with any function or range; however, the range must be

set manually. To make a relative measurement ﬁrst establish a reference value

by measuring a value and then pressing the ZERO button after the reading has

stabilized. This stores the measured value as the reference and sets the display to

zero. The meter subtracts the reference value from subsequent measurements and

displays this difference as the relative value. Measurement values greater than

the reference value will be positive and values less than the reference value will

be negative. To exit the Zero Mode, Press and hold the Zero button for 2 seconds.

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Select the proper Range using the R-H button before enabling the Zero feature.

This function will not autorange.

MAX / MIN button

The MAX MIN feature reads and updates the display to store and show the

maximum or minimum value measured after you press the MAX MIN button.

Pressing the MAX MIN button for less than 1 second will put the meter into a mode

of displaying the maximum, minimum, or actual readings. Each time the button is

pressed, the meter will cycle to the next display mode as shown in the table below.

Press the MAX MIN button for more than 2 seconds to disable this feature.

Select the proper Range using the RANGE button before enabling the MAX MIN

feature. This function will not autorange.

Button Display -- Value Displayed

MAX value after feature activated

< 1 second MIN - Minimum value after feature activated

< 1 second - Actual reading, min max being recorded.

> 2 seconds - Exit MAX MIN and return to normal measurement.

Analog bargraph

The analog bargraph provides a visual indication of measurement like a traditional

analog meter’s needle.

AC Voltage measurement (See Fig. 3)

Select the ‘~V’ position with the rotary selector switch.1.

Insert the test leads into the jack, the red lead into V/2. Ω jack, and the black lead

into the COM jack.

Connect the test leads to the circuit,3.

The voltage measured will be displayed.4.

DC Voltage measurement (See Fig. 4)

Select the ‘1. V’ position of selector functions.

Insert the test leads into the jack, the red lead into V/2. Ω jack, and the black lead

into the COM jack.

Connect the test leads to the circuit,3.

The voltage measured will be displayed.4.

AC Current measurement (See Fig. 5)

The instrument will not work correctly for non-sinusodial waveforms.

Select ‘1. ~A’ position.

Position the test conductor is in the center of the clamp jaw.2.

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The current measured will be displayed.3.

DC Current measurement (See Fig. 6)

Select ‘1. A’ position.

If the display doesn’t read zero, press the ZERO button.2.

If the current ﬂow is over 40A, press R-H button to select 400A range before3.

zeroing operation.

Position the test conductor is in the center of the clamp jaw.4.

The current measured will be displayed.5.

Resistance measurement (See Fig. 7)

Select the ‘1. Ω‘ function .

Insert the test leads into the jacks. The red lead into V/2. Ω jack, and black lead into

COM jack.

Remove power from the circuit being tested and discharge all the capacitors.3.

Connect the test leads to the circuit, the resistance measured will be displayed.4.

If OL appears on the highest range, the resistance is too large to be measured.5.

Continuity Test (See Fig. 8)

Select the ‘1. ’ function.

Insert the test leads into the jacks, the red lead into V/2. Ω jack, and black lead into

COM jack.

Remove power from the circuit being tested and discharge all the capacitors.3.

Connect the test leads to the circuit,4.

The resistance will be displayed and the buzzer sounds when the resistance value5.

is < 40 Ω.

MAINTENANCE AND REPAIR

If there appears to be a malfunction during the operation of the meter, the

following steps should be performed in order to isolate the cause of the problem:

Check the battery.1.

Review the operating instructions for possible mistakes in operating procedure.2.

Inspect and test the test leads for a broken or intermittent connection.3.

Except for the replacement of the battery or test probes, repair of the multimeter

should be performed only by a Factory Authorized Service Center or by other

qualiﬁed instrument service personnel. The front panel and case can be cleaned

with a mild solution of detergent and water. Apply sparingly with a soft cloth

and allow to dry completely before using. Do not use aromatic hydrocarbons or

chlorinated solvents for cleaning.

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Battery Replacement (see Fig. 9)

Warning

To prevent electrical shock or meter damage, disconnect the meter’s test leads from

any circuit and the meter, then turn the meter off before removing the battery

cover. Battery replacement should be performed in a clean environment and with

appropriate care taken to avoid contaminating the meter’s interior components.

Remove the screw and lift the battery cover.1.

Replace the batteries with the same type (1.5V AAA). Note polarity guide below2.

the battery.

Replace the battery cover and screw.3.

SPECIFICATIONS

General Speciﬁcations

Display: 3-3/4 digits 4000 counts LCD display

Update Rate: 2 per second nominal

Polarity: Automatic

Power Supply: 2 standard 1.5V AAA Size (NEDA 24G or IEC

R03) battery

Battery Life: typical 25 hours

APO Timing: idle for 30 minutes

Low battery: on LCD; approx. 2.4V

Environment: Indoor operation, below 2000 m

Temperature / Humidity:

Operating: 5°C to 40°C (41°F to 104 °F); < 80% RH

Storage: -10°C to 60°C (14°F to 122 °F); < 80% RH

Jaw opening: 27mm max

Dimension : 202 x 70 x 40mm (7.9 x 2.7 x 1.6 in.)

Weight : 254 gm (0.6 lb)

Safety LVD: Meets EN60101-1:2001; EN61010-2-032(2002), Category II- 600 Volts ac

& dc; pollution degree : 2; class 2

EMC: This product complies with requirements of the following European

Community Directives: 89/336/EEC (Electromagnetic Compatibility) and 73/23/EEC

(Low Voltage) as amended by 93/68/EEC (CE Marking). However, electrical noise

or intense electromagnetic ﬁelds in the vicinity of the equipment may disturb

the measurement circuit. Measuring instruments will also respond to unwanted

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signals that may be present within the measurement circuit. Users should exercise

care and take appropriate precautions to avoid misleading results when making

measurements in the presence of electronic interference.

Electrical (23 °C ± 5 °C) < 75%RH

DC Voltage

RANGE ACCURACY

400.0 mV 4.000V, 40.00V, 400.0V ± (0.8% rdg + 2 dgts)

600V ± (1.0% rdg + 2 dgts)

Input impedance : 10MΩ, 30pf nominal ( 100 MΩfor 400.0mV range)

Max input: 600 VDC

AC Voltage (sinusoidal only)

RANGE FREQUENCY ACCURACY

400.0mV 40Hz to 60Hz ± (1.0% rdg + 50 dgts)

4.000V, 40.00V, 400.0V 50Hz to 500Hz ± (1.0% rdg + 3 dgts)

600V 50Hz to 500Hz ± (1.2% rdg + 3 dgts)

Input impedance: 10MΩ, 30pf nominal ( 100 MΩfor 400.0mV range)

Max input: 600 VAC rms

DC Current (Clamp-On)

RANGE ACCURACY

0.00A to 40.00A ± (2.0% rdg + 10 dgts)

40.0A to 400.0A ± (2.0% rdg + 10 dgts)

Max current: 400A rms continuous; 600 A rms ( 60 seconds)

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