Hioki 3151 Manuale utente

3151

EARTH HiTESTER

INSTRUCTION MANUAL

Contents

Introduction i

Inspection i

Safety Notes ii

Notes on Use vi

Chapter 1 Outline 1

1.1 Product Outline 1

1.2 Features 2

1.3 Names and Functions of Parts 4

Chapter 2 Specifications 7

2.1 General Specifications 7

2.2 Measurement Range and Tolerances 9

Chapter 3 Technical Information 11

3.1 Earthing Resistance 11

3.2 Measurement Principle 13

Chapter 4 Measurement Procedure 15

4.1 Preparations 16

4.2 Normal Measurement (3-Pole Method) 17

4.3 Simplified Measurement (2-Pole Method) 22

4.4 Using the Earthing Net 28

4.5 Measurement Precautions and Hints 29

Chapter 5 Maintenance and Service 35

5.1 Attaching the Hand Strap 35

5.2 Changing the Batteries 36

5.3 Cleaning the Unit 38

5.4 Service 38

―――――――――――――――――――――――――――

Introduction

――――――――――――――――――――――――

Introduction

Inspection

Thank you for purchasing the HIOKI"3151

EARTH HiTESTER." To obtain maximum

performance from the instrument, please read

this manual first, and keep it handy for future

reference.

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 specifications, contact your

dealer or Hioki representative.

Accessories

9214 AUXILIARY EARTHING RODS (two)

9215 MEASURING CABLE

(black 5 m, yellow 10 m, red 20 m)

9216 CABLE WINDER (with 9215) (three)

9393 CARRYING CASE

Hand strap

Instruction manual

R6P Manganese batteries (six)

―――――――――――――――――――――――――――

Safety Notes

――――――――――――――――――――――――

DANGER

This instrument is designed to comply with IEC

61010 Safety Standards, and has been thoroughly

tested for safety prior to shipment. However,

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. We

disclaim any responsibility for accidents or

injuries not resulting directly from instrument

defects.

Safety Notes

This manual contains information and

warnings essential for safe operation of the

instrument and for maintaining it in safe

operating condition. Before using the

instrument, be sure to carefully read the

following safety notes.

iii

―――――――――――――――――――――――――――

Safety Notes

――――――――――――――――――――――――

The symbol printed on the

instrument indicates that the user

should refer to a corresponding topic in

the manual (marked with the

symbol) before using the relevant

function.

In the manual, the symbol indicates

particularly important information that

the user should read before using the

instrument.

Indicates a double-insulated device.

Indicates AC (Alternating Current).

DANGER

Indicates that incorrect operation

presents an extreme hazard that could

result in serious injury or death to the

user.

WARNING

Indicates that incorrect operation

presents a significant hazard that could

result in serious injury or death to the

use.

CAUTION

Indicates that incorrect operation

presents a possibility of injury to the

user or damage to the instrument.

NOTE Indicates advisory items related to

performance or correct operation of the

instrument.

Safety Symbols

The following symbols in this manual indicate

the relative importance of cautions and warnings.

―――――――――――――――――――――――――――

Safety Notes

――――――――――――――――――――――――

Overvoltage categories (CAT)

This instrument complies with CAT II safety

requirements.

To ensure safe operation of measurement

instruments, IEC 60664 establishes safety

standards for various electrical environments,

categorized as CAT I to CAT IV, and called

overvoltage categories. These are defined as

follows.

CAT I : Secondary electrical circuits

connected to an AC electrical outlet

through a transformer or similar

device.

CAT II : Primary electrical circuits in

equipment connected to an AC

electrical outlet by a power cord

(portable tools, household appliances,

etc.)

CAT III : Primary electrical circuits of heavy

equipment (fixed installations)

connected directly to the distribution

panel, and feeders from the

distribution panel to outlets.

CAT IV : The circuit from the service drop to

the service entrance, and to the

power meter and primary overcurrent

protection device (distribution panel).

―――――――――――――――――――――――――――

Safety Notes

――――――――――――――――――――――――

Higher-numbered categories correspond to

electrical environments with greater momentary

energy. So a measurement device designed for

CAT III environments can endure greater

momentary energy than a device designed for

CAT II.

Using a measurement 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.

―――――――――――――――――――――――――――

Notes on Use

――――――――――――――――――――――――

DANGER

When measuring earthing resistance, a voltage

of maximum 50 Vrms exists across the

measurement terminals E - C(H). Take proper

precautions against electric shock.

When performing a simplified measurement (2-

pole method) with the instrument connected to

the earth side of a household power supply (AC

outlet), take proper precautions against electric

shock.

Notes on Use

Follow these precautions to ensure safe

operation and to obtain the full benefits of the

various functions.

Indice

Altri manuali Hioki Strumento di misura

Manuali Strumento di misura popolari di altre marche

Suaoki

Suaoki D40 Manuale utente

Elster

Elster BK-G1.6 Manuale utente

Endress+Hauser

Endress+Hauser Deltabar FMD71 Manuale

Duratool

Duratool D03128 Manuale utente

Vega

Vega VEGAPULS 65 Manuale utente

Tonghui

Tonghui TH2618B Manuale utente

Tenmars

Tenmars TM-801 Manuale utente

MSR

MSR 145 Manuale utente

TPS

TPS WP-82 Manuale utente

ELMETRON

ELMETRON CP-511 Manuale utente

PCB Piezotronics

PCB Piezotronics 003C30 Manuale utente

Tenma

Tenma 72-10465 Manuale utente

Endress+Hauser

Endress+Hauser Proline Promag 50 Specifiche tecniche

Siemens

Siemens SITRANS F Coriolis FCT030 Manuale elenco delle parti

KLINGER

KLINGER CMF V Series Manuale utente

EXFO

EXFO FTB-2 Manuale operativo e di manutenzione

Keysight

Keysight M8290A Manuale utente

ADTEK

ADTEK MW-5 Manuale utente