AEMC 6422 Manuel utilisateur

ENGLISH

User Manual

■

GROUND TESTER

6422

6424

2Ground Tester Models 6422/6424

Statement of Compliance

Chauvin Arnoux®, Inc. d.b.a. AEMC®Instruments

certifies that this instrument has been calibrated using

standards and instruments traceable to international

standards.

We guarantee that at the time of shipping your

instrument has met its published specifications.

An N.I.S.T. traceable certificate may be requested at

the time of purchase, or obtained by returning the

instrument to our repair and calibration facility, for a

nominal charge.

The recommended calibration interval for this

instrument is 12 months and begins on the date of

receipt by the customer. For recalibration, please use

our calibration services. Refer to our repair and

calibration section at www.aemc.com.

Serial #:

Catalog #:

Model #: 6422 / 6424

Please fill in the appropriate date as indicated:

Date Received:

Date Calibration Due:

Chauvin Arnoux®, Inc.

d.b.a AEMC®Instruments

www.aemc.com

Ground Tester Models 6422/6424 3

CONTENTS

1. INTRODUCTION.................................................................................. 8

1.1. Battery Installation ......................................................................... 8

1.2. Battery Charging (Model 6424) .................................................... 10

1.3. Desktop Stand ............................................................................. 11

1.4. Instrument Interface..................................................................... 11

1.5. Instrument Functions ................................................................... 13

1.6. Buttons and Keys......................................................................... 13

1.7. LCD Display................................................................................. 15

2. OPERATION............................................................................... 16

2.1. Voltage Measurement.................................................................. 16

2.2. Resistance Measurement (2P) .................................................... 17

2.3. Grounding Resistance Measurement (3P) ................................... 20

2.4. AC Current Measurement (Model 6424)...................................... 30

3. SPECIFICATIONS ...................................................................... 32

3.1. General Reference Conditions..................................................... 32

3.2. Electrical Specifications ............................................................... 32

3.3. Influences ..................................................................................... 24

3.4. Uncertainty................................................................................... 36

3.5. Environmental Conditions ............................................................ 37

3.6. Power Supply............................................................................... 37

3.7. Mechanical Specifications............................................................ 38

3.8. International Standards................................................................ 38

3.9. Electromagnetic Compatibility (CEM) .......................................... 38

4. MAINTENANCE ......................................................................... 39

4.1. Cleaning....................................................................................... 39

4.2. Replacing the batteries ................................................................ 39

REPAIR AND CALIBRATION.............................................................. 40

TECHNICAL AND SALES ASSISTANCE ............................................. 40

LIMITED WARRANTY........................................................................ 41

4Ground Tester Models 6422/6424

Thank you for purchasing the AEMC Ground Tester Model 6422 or 6424. For

best results from your instrument and for your safety, read the enclosed

operating instructions carefully and comply with the precautions for use. These

products must be only used by qualified and trained users.

WARNING, risk of DANGER! The operator must refer to these

instructions whenever this danger symbol appears.

CAUTION! Risk of electric shock. The voltage at the parts marked

with this symbol may be dangerous.

Useful information or tip.

Earth/ground.

Current clamp.

The product is declared recyclable following a life cycle analysis in

accordance with standard ISO 14040.

Battery.

Guarantees conformity with European directives and with

regulations covering EMC.

In the European Union, the product must undergo selective disposal

for the recycling of electric and electronic material, in compliance with

Directive WEEE 2002/96/EC.

Ground Tester Models 6422/6424 5

Precautions

This instrument is compliant with safety standard IEC 61010-2-030 for voltages

up to 600V in category IV. Do not use the instrument for measurements on

circuits that are not in measurement categories II, III, or IV or that might be

connected inadvertently to circuits that are not in measurement categories II, III,

or IV.



The operator and/or the responsible authority must carefully read and

clearly understand the various precautions to be taken in use. Sound

knowledge and a keen awareness of electrical hazards are essential

when using thisinstrument.



If you use this instrument other than as specified, the protection it

provides may be compromised, thereby endangeringyou.



Do not use the instrument on networks of which the voltage or category

exceeds those mentioned.



Do not use the instrument if it seems to be damaged, incomplete, or

poorly closed.



Before each use, check the condition of the insulation on the leads,

housing, and accessories. Any item of which the insulation is

deteriorated (even partially) must be set aside for repair or scrapping.



Before using your instrument, check that it is perfectly dry. If it is wet, it

must be thoroughly dried before it can be connected or used.



The use of leads (or accessories) of a lower voltage or category limits the

voltage or category of the combined instrument and leads (or

accessories) to that of the leads (or accessories).



Use personal protection equipment systematically.



When handling the leads, test probes, and alligator clips, keep your

fingers behind the physical guard.



All troubleshooting and metrological checks must be performed by

competent and accredited personnel.

Definition of Measurement Categories (CAT)

CAT IV Measurement category IV corresponds to measurements taken at the

source of low-voltage installations.

Example: power feeders, counters and protection devices.

CAT III Measurement category III corresponds to measurements on building

installations.

Example: distribution panel, circuit-breakers, machines or fixed

industrial devices.

CAT II Measurement category II corresponds to measurements taken

on circuits directly connected to low-voltageinstallations.

Example: power supply to domestic electrical appliances and

portable tools.

6Ground Tester Models 6422/6424

Receiving Your Shipment

Upon receiving your shipment, make sure that the contents are consistent with

the packing list. Notify your distributor of any missing items. If the equipment

appears to be damaged, file a claim immediately with the carrier and notify your

distributor at once, giving a detailed description of any damage. Save the

damaged packing container to substantiate your claim.

Ordering Information

Ground Tester Model 6422…………………..…….……...............Cat. #2135.55

Includes 6 AA alkaline batteries, carrying bag and user manual

Ground Tester Model 6422 Kit-150 ft …………………..….......... Cat. #2135.56

Includes ground tester, two 150 ft color-coded leads on spools (red/blue),

one 30 ft lead (green), two T-shaped auxiliary ground electrodes, set of two

5 ft color-coded (red/blue) leads, one 100 ft AEMC®tape measure, 6 AA

batteries, carrying bag and user manual

Ground Tester Model 6424…………………..…….……...............Cat. #2135.57

Includes 6 AA rechargeable NiMH batteries, USB to wall charger, 5V, 2A,

USB charger cable, carrying bag and user manual

Ground Tester Model 6424 Kit-150 ft …………………..….......... Cat. #2135.58

Includes ground tester, two 150 ft color-coded leads on spools (red/blue), one

30 ft lead (green), two T-shaped auxiliary ground electrodes, set of two 5 ft

color-coded (red/blue) leads, one 100 ft AEMC®tape measure, 6 AA

rechargeable NiMH batteries, USB to wall charger, 5V, 2A, USB charger

cable, carrying bag and user manual

Ground Tester Model 6424 Kit-300 ft …………………..….......... Cat. #2135.59

Includes ground tester, two 300 ft color-coded leads on spools (red/blue), two

100 ft color-coded leads (hand-tied, green/black), four T-shaped auxiliary

ground electrodes, set of two 5 ft color-coded (red/blue) leads, one 100 ft

AEMC®tape measure, 6 AA rechargeable NiMH batteries, USB to wall

charger, 5V, 2A, USB charger cable, carrying bag and user manual

Accessories

Ground Rod – Set of 2, 17” stainless steel T-shaped

auxiliary rods ………………..……………………………….......... Cat. #2135.44

AC Current Probe Model MN72 for use with Model 6424 only... Cat. #2153.06

Calibration checker for ground tester models 6422/6424…….… Cat. #5000.92

Ground Tester Models 6422/6424 7

Replacement Parts

Bag – Multi-purpose large canvas bag

(replacement for ground kits) …………..………..…….….......... Cat. #2119.82

Case – Replacement carrying case for Models 3620, 3640,

4600, 4610, AN1, 6422, 6424, 6501 & 6503…………….……...Cat. #2126.71

Tape measure – AEMC®100 ft ………………………….……..… Cat. #2130.60

Test Kit for 3-Point Testing ………………………………….…..…Cat. #2135.35

Includes two 150 ft color-coded leads on spools (red/blue), one 30 ft lead

(green), two T-shaped auxiliary ground electrodes, set of two 5 ft color-

coded (red/blue) leads, one 100 ft AEMC®tape measure, and carrying bag

Ground Rod – Set of 2, 14.5” T-shaped auxiliary rods …..…..…Cat. #2135.39

Cable – Replacement USB charger cable w/wall plug

for Model 6424 ……………………………………………….…..… Cat. #2135.93

8Ground Tester Models 6422/6424

1. INTRODUCTION

1.1 Battery Installation

1. Open the battery compartment cover.

2. With your fingers on either side of the cover, insert a tool (for example a

screwdriver) in the latching system, and lift up.

3. Remove the battery compartment cover.

Ground Tester Models 6422/6424 9

4. Pull open the rubber seal covering the battery compartment.

5. Insert the batteries, ensuring correct polarities. We recommend

disposable batteries for the Model 6422 (for example alkaline) and

rechargeable batteries for the Model 6424. The Model 6422 comes with

alkaline batteries installed, and the Model 6424 with rechargeable

batteries installed.

6. Press the rubber seal back in place, ensuring it correctly covers the

compartment.

7. Replace the battery compartment cover.

If you insert disposable batteries in the Model 6424, the batteries will

last longer but the battery level indicator will be inaccurate.

If you insert rechargeable batteries in the Model 6422, the battery level

indicator will always display low battery level and the batteries

will not last as long.

10 Ground Tester Models 6422/6424

1.2 Battery Charging (Model 6424)

Before using the Model 6424 for the first time, you should fully charge the

battery. Charging must be done in a location with the temperature between 32

and 104°F (0 and 40°C).

Do not perform the charging procedure if disposable batteries are

installed in the instrument.

1. Connect one end of the provided USB cable to the Model 6424 terminal

block and the other end to a wall outlet using the provided external-

power-to-USB adapter.

2. The instrument displays CHrG. While the battery charges, the battery

level indicator displays progress. Full charging requires approximately 6

hours.

3. When the battery level indicator shows full charge disconnect the

USB cable from the instrument.

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