AEMC instruments GROUNDFLEX 6474 Manual de usuario

GroundFlex®Adapter

Model 6474

User Manual

ENGLISH

GROUNDFLEX®ADAPTER

WITH AEMC

INSTRUMENTS

No part of this documentation may be reproduced in any form or by any means (including electronic

storage and retrieval or translation into any other language) without prior agreement and written consent

from Chauvin Arnoux®, Inc., as governed by United States and International copyright laws.

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

15 Faraday Drive • Dover, NH 03820 USA

Tel: (800) 945-2362 or (603) 749-6434 • Fax: (603) 742-2346

This documentation is provided as is, without warranty of any kind, express, implied, or otherwise.

Chauvin Arnoux®, Inc. has made every reasonable e󰀨ort to ensure that this documentation is accurate;

but does not warrant the accuracy or completeness of the text, graphics, or other information contained

in this documentation. Chauvin Arnoux®, Inc. shall not be liable for any damages, special, indirect,

incidental, or inconsequential; including (but not limited to) physical, emotional or monetary damages

due to lost revenues or lost prots that may result from the use of this documentation, whether or not the

user of the documentation has been advised of the possibility of such damages.

Chauvin Arnoux®, Inc.

d.b.a AEMC®Instruments

www.aemc.com

Statement of Compliance

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

certies 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 the instrument’s published

specications.

An NIST traceable certicate 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/calibration.

Serial #:

Catalog #: 2136.03

Model #: 6474

Please ll in the appropriate date as indicated:

Date Received:

Date Calibration Due:

TABLE OF CONTENTS

1. INTRODUCTION.................................................................. 5

1.1 PRECAUTIONS FOR USE ........................................................ 6

1.2 RECEIVING YOUR SHIPMENT................................................ 6

1.3 ORDERING INFORMATION..................................................... 7

1.3.1 Accessories ........................................................................ 7

1.3.2 Replacement Parts............................................................. 7

2. GROUNDFLEX®ADAPTER ...............................................8

2.1 CONTROL FEATURES.............................................................. 8

2.2 GROUNDFLEX®SENSOR........................................................ 9

2.2.1 Calibration of GroundFlex®Sensors................................. 10

2.3 MEASUREMENTS IN AUTO MODE ...................................... 12

2.3.1 Preparation of the GroundFlex®Adapter .......................... 12

2.3.2 Making a Measurement (Resistance of Legs).................. 14

2.3.3 Other Measurements ....................................................... 16

2.4 MANUAL MODE AND SWEEP MODE................................... 16

2.5 TOWER TESTING MEASUREMENT..................................... 18

2.5.1 Choosing the positions for the H, S electrodes: ............... 18

2.6 GLOSSARY .............................................................................. 25

3. SPECIFICATIONS ............................................................. 26

3.1 ELECTRICAL............................................................................ 26

3.2 MECHANICAL.......................................................................... 28

3.3 ENVIRONMENTAL .................................................................. 28

3.4 SAFETY .................................................................................... 28

4. MAINTENANCE ................................................................29

4.1 CLEANING................................................................................ 29

4.2 REPAIR AND CALIBRATION ................................................. 29

4.3 TECHNICAL AND SALES ASSISTANCE .............................. 30

4.4 LIMITED WARRANTY ............................................................. 30

4.4.1 Warranty Repairs ............................................................. 31

1. INTRODUCTION

Thank you for purchasing an AEMC®Instruments GroundFlex®Adapter

Model 6474.

For the best results from your instrument and for your safety, you must

read the enclosed operating instructions carefully and comply with the

precautions for use. Only qualied and trained operators should use this

product.

Symbols & Denitions

Signies that the instrument is protected by double or reinforced insulation

CAUTION - Risk of Danger! Indicates a WARNING. Whenever this symbol

is present, the operator must refer to the user manual before operation

Indicates a risk of electric shock. The voltage at the parts marked with this

symbol may be dangerous

Indicates Important information to acknowledge

This product complies with the Low Voltage & Electromagnetic Compatibility

European directives

In the European Union, this product is subject to a separate collection

system for recycling electrical and electronic components in accordance with

directive WEEE 2012/19/EU

Ground/Earth

Denition of Measurement Categories (CAT)

CAT IV: Corresponds to measurements performed at the primary electrical

supply (< 1000 V).

Example: primary overcurrent protection devices, ripple control units,

and meters.

CAT III: Corresponds to measurements performed in the building installation

at the distribution level.

Example: hardwired equipment in xed installation and circuit

breakers.

CAT II: Corresponds to measurements performed on circuits directly

connected to the electrical distribution system.

Example: measurements on household appliances and portable tools.

6GroundFlex®Adapter Model 6474 - User Manual

1.1 PRECAUTIONS FOR USE

These safety warnings are provided to ensure the safety of personnel. Please

read and comply with these precautions:

■This instrument is protected from accidental voltages of not more than 50 V with

respect to earth in measurement CAT IV. The guaranteed level of protection

of this equipment may be compromised if used in a manner not specied by

the manufacturer.

■Safety is the responsibility of the operator.

■All metal objects or wires connected to the electrical system should be

assumed to be lethal until tested. Grounding systems are no exception.

■Never exceed the maximum rated voltage and current, and the

measurement category.

■Never exceed the protection limits, and always comply with the conditions

and place of use, indicated in the specications.

■Do not use the instrument or its accessories if they appear damaged.

■Use accessories that have overvoltage category and service voltages

greater than or equal to those of the instrument (CAT IV 50 V). Use only

accessories that comply with safety standards (IEC 61010-2-031 & 32).

■Wear the appropriate protective gear (insulating boots and gloves).

■Check that no terminal is connected and the switch is set to OFF before

opening the device.

■Use only the charging unit supplied with the instrument to recharge the

battery.

■Troubleshooting and metrological verication procedures must only be

performed by qualied, approved personnel, or the factory.

NOTE: The potentials on the various rods used for an earth

measurement may be di󰀨erent if a nearby electrical installation is

defective or certain weather conditions prevail (thunderstorms).

It is up to the operator to decide whether to continue or postpone

measurements in these situations.

1.2 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, le 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.

GroundFlex®Adapter Model 6474 - User Manual 7

1.3 ORDERING INFORMATION

NOTE: The GroundFlex®Adapter Model 6474 only operates in

combination with the Ground Tester Model 6472 Kit - 500 ft.

GroundFlex® Field Kit (Model 6472 and 6474) ............................. Cat. #2136.03

Includes: (Ground Tester Model 6472 Kit-500 ft (Cat #2135.54)); Model 6472,

(1) carrying bag, (2) 500 ft color-coded leads on spools (red/blue),

(2) 100 ft color-coded leads (hand tied, green/black), (1) 30 ft lead (green),

(2) 5 ft color-coded leads (red/blue), 100/240 V power adapter with US power

cord, optical USB cable, (4) T-shaped auxiliary ground electrodes, set of

(5) spaded lugs, (1) 100 ft tape measure, rechargeable NiMH battery pack, USB

stick with DataView®software, ground tester workbook and user manual.

GroundFlex® Adapter Model 6474, (4) GroundFlex®sensors (5 m), (12) color-

coded rings, connection lead, (2) extension leads on H reel (black/green) with

color-coded alligator clips, (1) extra green and black alligator clips,

(2) BNC extension leads, calibration loop, (3) C-clamps, set of (2) reel caddy,

(1) inverter 12 VDC to 120 VAC watt (vehicle use), carrying case with wheels and

handle for meters and user manual.

1.3.1 Accessories

Bag #6 - Carrying Bag for Ground Kits............................................ Cat. #2119.82

Tape Measure - AEMC®Instruments (100 ft)................................... Cat. #2130.60

Set of two, 14.5 in T-shaped Auxiliary Ground Electrodes .............. Cat. #2135.39

Optical USB Cable ........................................................................... Cat. #2135.41

1.3.2 Replacement Parts

Connection Lead for Model 6472/6474............................................ Cat. #2135.75

One BNC (15 m/50 ft) Extension Lead ............................................ Cat. #2135.76

Set of 12, GroundFlex®Rings (red, yellow, brown, orange)............. Cat. #2135.77

Green Extension Lead ..................................................................... Cat. #2135.78

Black Extension Lead ...................................................................... Cat. #2135.79

Set of 3, C-clamps ...........................................................................Cat. #2135.80

Calibration Loop............................................................................... Cat. #2135.82

Carrying Case .................................................................................. Cat. #2135.83

One GroundFlex®(5 m / 16 ft) Sensor

w/ (16 m / 52 ft) black cable.............................................................. Cat. #2135.92

Safety Alligator Clip (black)..............................................................Cat. #5000.99

Safety Alligator Clip (green) ............................................................. Cat. #5100.06

GroundFlex®Sensor (10 m / 32 ft) ................................................... Cat. #2135.87

Order Accessories and Replacement Parts Directly Online

Check our Storefront at www.aemc.com/store for availability

8GroundFlex®Adapter Model 6474 - User Manual

2. GROUNDFLEX®ADAPTER

2.1 CONTROL FEATURES

50V CAT IV

1-2-3-4

1-2-3

1-2

For Use with the

Ground Tester Model 6472

GroundFlex

Sensor

SENSOR TURNS

SENSITIVITY

To Model 6472

Overload

INPUT

GroundFlex®Adapter

MODEL 6474

1. Inputs 1 through 4 for GroundFlex®sensors

2. Connector for connection lead to the Ground Tester Model 6472

3. OVERLOAD indicator

4. SENSOR TURNS selector: 1, 2, 3 or 4

5. SENSITIVITY selector: x10, x1 or x1/10

6. INPUT SELECTION: 1, 2, 3, 4, 1-2, 1-3 or 1-4

GroundFlex®Adapter Model 6474 - User Manual 9

2.2 GROUNDFLEX®SENSOR

The GroundFlex®sensors are placed around a conductor (tower leg or pole) and

closed using a screw connector, which is part of the sensor. This closed loop

is then used to make a contact-free measurement of the current owing in the

conductor (leg) it is wrapped around.

These sensors are current measurement clamps but are able to enclose objects

that are much larger.

GroundFlex®sensors are available in lengths of up to approx 24 ft (8 m) and can

be placed around objects (such as tower legs) up to in approx 8 ft diameter (2.7 m).

50V CAT IV

1-2-3-4

1-2-3

1-2

GroundFlex®

Sensor

To Model 6472

Overload

INPUT

10 GroundFlex®Adapter Model 6474 - User Manual

2.2.1 Calibration of GroundFlex®Sensors

Calibration is necessary for a new sensor, one that is no longer identied when a

sensor has been replaced, or more than 2 lengths of extension cable is used. The

calibration coe󰀩cients are then stored in the Model 6474.

WARNING: Do not move or touch the GroundFlex®sensor or the

calibration loop during the calibration. This could cause errors.

Start by identifying each sensor using the identication rings that are supplied

with the Model 6474: (1) Brown, (2) Red, (3) Orange, (4) Yellow

■Connect the calibration loop between terminals H and E of the Model 6472.

■Connect the Model 6472 and 6474 together using the connection cable.

■Connect the GroundFlex®sensor with the Brown ring to Input 1 of the Model

6474, the one with the Red ring to Input 2, the one with the Orange ring to

Input 3, and the one with the Yellow ring to Input 4.

■Coil the GroundFlex®sensor four times around in the calibration loop and

close it using its screw connector. Place the connector as far as possible from

the calibration device.

6472 6474

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