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FT6031

EARTH TESTER

Instruction Manual

Oct. 2018 Revised edition 2

FT6031A981-02 18-10H

Video

Scan this code to watch

an instructional video.

Carrier charges may apply.

FT6031

EARTH TESTER

Instruction Manual

Oct. 2018 Revised edition 2

FT6031A981-02 18-10H

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

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

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

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