AEMC 6418 Manuale utente

ENGLISH

User Manual

■

GROUND TESTER

6418

2Clamp-On Ground Tester Model 6418

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 #: 2141.03

Model #: 6418

Please fill in the appropriate date as indicated:

Date Received:

Date Calibration Due:

Chauvin Arnoux®, Inc.

d.b.a AEMC®Instruments

www.aemc.com

Clamp-On Ground Tester Model 6418 3

Table of Contents

PRECAUTIONS FOR USE ..................................................... 5

1. INTRODUCTION ................................................................... 7

1.1. Function Keys .................................................................. 8

1.2. Display ............................................................................. 8

1.3. Inserting Batteries............................................................ 9

1.4. Date and Time Setup....................................................... 9

2. OPERATION .................................................................... 10

2.1. General .......................................................................... 10

2.2. Impedance and Current Measurement.......................... 10

2.3. Current Measurement.................................................... 12

2.4. Configuring (Set-up) .......................................................13

2.5. Errors ............................................................................. 15

2.6. Automatic Stop .............................................................. 15

2.7. Storage .......................................................................... 16

3. TECHNICAL CHARACTERISTICS ................................. 18

3.1. General Reference Conditions ...................................... 18

3.2. Electrical Characteristics ............................................... 18

3.3. Influences ...................................................................... 19

3.4. Power Supply................................................................. 22

3.5. Environmental Conditions.............................................. 22

3.6. Mechanical Characteristics............................................ 22

3.7. Compliance with International Standards ...................... 23

3.8. Electromagnetic Compatibility (EMC)............................ 23

4. MAINTENANCE............................................................. 24

4.1. Cleaning......................................................................... 24

4.2. Battery Replacement ..................................................... 24

LIMITED WARRANTY .......................................................... 26

4Clamp-On Ground Tester Model 6418

Thank you for purchasing the AEMC Clamp-On Ground Tester Model

6418.

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.

Equipment is protected by double insulation.

Battery.

Application or withdrawal authorized on conductors carrying

dangerous voltages. Type A current sensor per IEC 61010-2-

032.

Useful information or tip to read.

The product has been declared recyclable after analysis of its

life cycle in accordance with the ISO14040 standard.

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.

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-voltage

installations.

Example: power supply to domestic electrical appliances

and portable tools.

Clamp-On Ground Tester Model 6418 5

PRECAUTIONS FOR USE

This instrument is compliant with safety standard IEC 61010-2-032, for

voltages up to 100V in category IV or 150V in category III. Failure to

observe the safety instructions may result in electric shock, fire,

explosion, and destruction of the instrument and of the installations.

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

clearly understand the various precautions to be taken in use. 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 this instrument.

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

provides may be compromised, thereby endangering you.

The safety of any system in which this instrument might be

incorporated is the responsibility of the integrator of the system.

Do not use the clamp above its rated frequency, since this might

cause it to overheat dangerously.

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

category exceeds those mentioned.

Observe the environmental conditions of use.

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 housing.

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.

When handling the instrument, keep your fingers behind the physical

guard.

Avoid impacts on the measurement head, in particular the air gap.

Keep the surfaces of the air gap clean; even a little dirt can cause the

clamp to malfunction.

Use personal protection equipment systematically.

All troubleshooting and metrological checks must be done by

competent accredited personnel.

6Clamp-On Ground Tester Model 6418

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

Clamp-On Ground Tester Model 6418..............................Cat. #2141.03

Includes hard carrying case, 5

Ω

calibration loop, four 1.5V AA batteries,

wrist strap, Bluetooth adapter, multilingual safety sheet, Quick Start

Guide, and USB drive containing User Manual.

Replacement Parts

Hard Carrying Case ..........................................................Cat. #2141.52

5 Ω Calibration Loop .........................................................Cat. #2141.51

For the accessories and replacement parts, visit our web site:

www.aemc.com

Clamp-On Ground Tester Model 6418 7

1. INTRODUCTION

The simple-to-use Clamp-On Ground Tester Model 6418 makes ground

impedance measurements in a parallel earth network, such as power

distribution poles and overhead ground conductors. These

measurements are simpler to perform than traditional measurements

with two auxiliary rods.

The Model 6418 can make accurate low value ground impedances

measurements and AC current measurements. Its large oblong

measurement head can clamp around bars up to 1.18 x 1.57” (30 x

40mm). Its memory function records measurements for later viewing.

The instrument’s OLED (Organic Light Emitting Diode) display screen is

easy to read, even in direct sunlight.

8Clamp-On Ground Tester Model 6418

1.1. FUNCTION KEYS

As a general rule, functions shown in white on the keys are available

when the switch is set to Ω+A or A. The yellow arrow keys (▲, ▼ and

►) are available when the switch is set to MR or SET-UP.

Key Function

Switch the display unit backlighting ON and OFF.

MEM

Record the measurement displayed.

HOLD

Freeze/unfreeze the display of the measurement.

▲

▼

Browse in:

SET-UP menu and change the value of the parameter

selected.

Memory read (MR).

►

When switch is set to:

Ω+A or A: a long press on ► activates/deactivates the

audible signal.

SET-UP: ► browses in the menu and confirms the changes

made.

MR: ► toggles the display between the measurement and

the date/time.

1.2. DISPLAY

When the measurement exceeds the limits of the measurement range,

the instrument displays OR.

Clamp-On Ground Tester Model 6418 9

1.3. INSERTING BATTERIES

Refer to §4.2.

1.4. DATE AND TIME SETUP

The first time you turn ON the instrument by turning the switch to Ω+A,

the instrument prompts you to set the date.

The year blinks, indicating it can

be edited. Set it using the ▲ and

▼ keys.

Then press the ► key; the month

blinks. Set it using ▲ and ▼.

Press ►. The date blinks; set it

using ▲ and ▼ and confirm by

pressing ►.

The instrument then displays the

time format. Choose 24h or 12h (A

or P) using ▲ and ▼.

Confirm by pressing ►. The

hours reading blinks. Set it

using ▲ and ▼ and confirm

by pressing ►.

The minutes reading blinks. Set

it using ▲ and ▼ and confirm

with ►.

10 Clamp-On Ground Tester Model 6418

2. OPERATION

2.1. GENERAL

When turned ON, the instrument performs self-calibration. The jaws of

the clamp must therefore be closed and not clamped around any

conductor.

If the instrument fails to complete self-calibration, the error message Err.

CAL is displayed. If this happens, turn the instrument OFF and ensure

the air gaps are clean. Then turn the instrument ON.

2.2. IMPEDANCE AND CURRENT MEASUREMENT

Set the

switch to

Ω+A.

Press the trigger to open the jaws,

and clamp around the conductor

that is part of the ground system

to be measured.

When the jaws are open, the

symbol

is displayed and the

instrument cannot make a

measurement.

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