Hioki FT6031 Manuale utente

FT6031

EARTH TESTER

Instruction Manual

Oct. 2018 Revised edition 2

FT6031A981-02 18-10H

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Contents

Introduction.........................................................................1

Verifying Package Contents ..............................................1

Options (sold separately) ..................................................2

Safety Notes........................................................................3

Usage Notes........................................................................8

1 Overview 13

1.1 Overview and Features.................................13

Overview................................................................... 13

Features....................................................................13

1.2 Parts Names and Functions.........................15

1.3 How to Use Carrying Case ...........................20

2 How to Measure 21

2.1 MeasurementWorkow................................21

2.2 Attaching/Removing Protector ....................24

2.3 Inserting/Replacing Batteries ......................25

2.4 Inspection before Use...................................29

2.5 Setting Up Comparator (PASS/FAIL Test) ...31

How to set up comparator......................................... 32

How to disable comparator .......................................32

2.6 Precise Measurement for Earth

Resistance(Precise Measurement

Method, Three-pole Method) ........................33

Performing zero adjustment...................................... 35

Connecting measurement cables .............................36

Measuring earth resistance ......................................39

Stowing .....................................................................42

FT6031A981-02

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2.7 SimpliedMeasurementforEarth

Resistance(SimpliedMeasurement

Method, Two-pole Method)........................... 44

Performing zero adjustment...................................... 46

Connecting test leads ...............................................48

Measuring earth resistance ......................................51

Stowing .....................................................................51

2.8 Cautions and Tips for Measurement ...........52

Distance between earthing electrodes...................... 52

Location to install auxiliary earthing rod.................... 53

How to insert / pull out auxiliary earthing rod............ 54

2.9 Auto Power Save

(Power-saving Function) ..............................56

2.10 Activating the LCD All-on Display ............... 56

2.11 Displaying the Serial number.......................57

3 Specication 59

3.1 GeneralSpecication ...................................59

3.2 Measurement Function/Performance..........61

4 Maintenance and Service 67

4.1 Repair, Inspection, and Cleaning.................67

4.2 Troubleshooting ............................................69

4.3 Error Display..................................................73

Appendix Appx. 1

Appendix 1 Earth Resistance ...................Appx. 1

Appendix 2 Measurement Principle ......... Appx. 3

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Introduction

Thank you for purchasing the HIOKI FT6031 Earth Tester. To obtain

maximum performance from the product, please read this manual

rst, and keep it handy for future reference.

Verifying Package Contents

When you receive the instrument, inspect it carefully to ensure

that no damage occurred during shipping. In particular, check the

accessories, panel switches, and connectors. If damage is evident,

or if it fails to operate according to the specications, contact your

authorized Hioki distributor or reseller.

Check the package contents as follows.

FT6031

Accessory

L9840

Auxiliary Earthing Rod (2 piece set) ×1

L9841 Measurement Cable

(alligator clip, black 4 m) ×1

L9842-11 Measurement Cable

(yellow 10 m, equipped with winder) ×1

L9842-22 Measurement Cable

(red 20 m, equipped with winder) ×1

C0106 Carrying Case ×1

Protector

LR6 Alkaline battery × 4

Instruction manual

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Options (sold separately)

The following options are available for the instrument. Contact your

authorized Hioki distributor or reseller when ordering.

L9787 Test Lead

(for simplied measurement method,

indoor use only, red and black 1.2 m each)

L9840 Auxiliary Earthing Rod

(for precision measurement method, 2 pcs in 1 set)

(φ 6 mm, entire length of 270 mm, straight

section 235 mm, material: stainless SUS304)

L9841 Measurement Cable

(for precision measurement method,

alligator clip, black 4 m)

L9842-11 Measurement Cable

(for precision measurement method,

yellow 10 m, equipped with winder)

L9842-22 Measurement Cable

(for precision measurement method,

red 20 m, equipped with winder)

L9843-51 Measurement Cable

(for precision measurement method,

yellow 50 m, equipped with at cable winder)

L9843-52 Measurement Cable

(for precision measurement method,

red 50 m, equipped with at cable winder)

L9844 Measurement Cable

(for earthing terminal board, alligator clip,

3 cables in 1 set, red/yellow/black 1.2 m each)

9050 Earth Nets

(2 sheets in 1 set, 300 mm × 300 mm)

C0106 Carrying Case

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Safety Notes

This instrument is designed to conform to IEC 61010 Safety

Standards, and has been thoroughly tested for safety prior to

shipment. However, using the instrument in a way not described in

this manual may negate the provided safety features.

Before using the instrument, be certain to carefully read the following

safety notes.

DANGER

Mishandling during use could result in injury or death,

as well as damage to the instrument. Be certain that

you understand the instructions and precautions in

the manual before use.

WARNING

With regard to the electricity supply, there are risks

of electric shock, heat generation, re, and arc

discharge due to short circuits. If persons unfamiliar

with electricity measuring instruments are to use

the instrument, another person familiar with such

instruments must supervise operations.

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Safety Notes

Notation

In this manual, the risk seriousness and the hazard levels are classied as

follows.

DANGER

Indicates an imminently hazardous situation

that will result in death or serious injury to the

operator.

WARNING

Indicates a potentially hazardous situation

that may result in death or serious injury to the

operator.

CAUTION

Indicates a potentially hazardous situation

that may result in minor or moderate injury to

the operator or damage to the instrument or

malfunction.

IMPORTANT

Indicates information related to the operation

of the instrument or maintenance tasks with

which the operators must be fully familiar.

Indicates a high voltage hazard.

If a particular safety check is not performed or

the instrument is mishandled, this may give

rise to a hazardous situation; the operator

may receive an electric shock, may get burnt

or may even be fatally injured.

Indicates prohibited actions.

Indicates the action which must be performed.

*Additional information is presented below.

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Safety Notes

Symbols afxed to the instrument

Indicates cautions and hazards. When the symbol is printed on

the instrument, refer to a corresponding topic in the Instruction

Manual.

Indicates a double-insulated device.

Indicates DC (Direct Current).

Indicates AC (Alternating Current).

Indicates the power switch mark.

Symbols for various standards

Indicates the Waste Electrical and Electronic Equipment

Directive (WEEE Directive) in EU member states.

Indicates that the instrument conforms to safety regulations set

out by the EC Directive.

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Safety Notes

Screen display

This instrument uses the following screen displays.

1 2 3 4 5 6 7 8 9 0

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Accuracy

We dene measurement tolerances in terms of f.s. (full scale), rdg.

(reading) and dgt. (digit) values, with the following meanings:

f.s. (Maximum display value)

The maximum displayable value.

rdg.

(Reading or displayed value)

The value currently being measured and indicated on the

measuring instrument.

dgt.

(Resolution)

The smallest displayable unit on a digital measuring

instrument, i.e., the input value that causes the digital display

to show a “1” as the least-signicant digit.

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Safety Notes

Measurement categories

To ensure safe operation of measuring instruments, IEC 61010

establishes safety standards for various electrical environments,

categorized as CAT II to CAT IV, and called measurement categories.

DANGER

•Using a measuring instrument in an environment

designated with a higher-numbered category than

that for which the instrument is rated could result in

a severe accident, and must be carefully avoided.

•Using a measuring instrument without categories in

an environment designated with the CAT II to CAT

IV category could result in a severe accident, and

must be carefully avoided.

This instrument conforms to the safety requirements for CAT II 300 V, CAT III

150 V, CAT IV 100 V measuring instruments.

CAT II: When directly measuring the electrical outlet receptacles of

the primary electrical circuits in equipment connected to an

AC electrical outlet by a power cord (portable tools, household

appliances, etc.).

CAT III: When measuring the primary electrical circuits of heavy equipment

(xed installations) connected directly to the distribution panel,

and feeders from the distribution panel to outlets.

CAT IV: When measuring the circuit from the service drop to the service

entrance, and to the power meter and primary overcurrent

protection device (distribution panel).

Outlet

CAT II

Internal Wiring

Distribution Panel

Service Entrance

Service Drop

CAT IV

Power Meter

CAT III

Fixed Installation

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