Hioki IR4056 User manual

Instruction Manual

IR4057

INSULATIONTESTER

IR4056

July 2015 Revised edition 3

IR4056A981-03 15-07H

Contents

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

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

Options......................................................................2

Safety Information.....................................................3

Operating Precautions ..............................................6

Chapter 1 Overview 9

1.1 Product Overview........................................9

1.2 Features ......................................................9

1.3 Names and Functions of Parts..................10

Chapter 2 Measurement Procedures 13

2.1 Measurement Preparations.......................13

2.2 Pre-measurement inspection ....................14

2.3 Configuring the Comparator......................15

2.3.1 Setting the Comparator..................16

2.3.2 Canceling the Comparator.............16

2.4 Insulation Resistance Measurement .........18

2.4.1 Lock Function.................................19

2.4.2 Measuring Insulation Resistance...21

2.4.3 Displaying 1-min. Values

(IR4057 Function) ..........................22

2.5 Discharging Function.................................23

IR4056A981-03

Contents

2.6 Voltage Measurement............................... 24

2.7 Low Resistance Measurement.................. 26

2.8 Auto power save

(power-saving function)............................. 28

2.9 Auto-backlight-off...................................... 28

Chapter 3 Specifications 29

Standard Specifications .................................... 29

General Specifications ...................................... 30

Measurement functions ..................................... 31

Chapter 4 Maintenance and Service 37

4.1 Troubleshooting ........................................ 37

4.2 Replacing Batteries or Fuse......................41

4.3 Cleaning.................................................... 42

Appendix 43

Introduction

索引

Thank you for purchasing the HIOKI Model IR4056, IR4057

Insulation Tester. To obtain maximum performance from the

instrument, please read this manual first, and keep it handy for

future reference.

The “instrument” in this manual means IR4056 or IR4057.

• When you receive the instrument, inspect it carefully to ensure

that no damage occurred during shipping. If damage is

evident, or if it fails to operate according to the specifications,

contact your authorized Hioki distributor or reseller.

• When transporting the instrument, use the original packing

materials in which it was shipped, and pack in a double carton.

Damage occurring during transportation is not covered by

warranty.

Package Contents

* L9787 Test Lead is exclusively designed for the HIOKI IR4000

series. Do not use for any other purpose.

Introduction

Verifying Package Contents

Model

Name

IR4056, IR4057

Insulation Tester

Accessories

L9787 Test Lead

............ 1

Instruction manual............ 1

Neck strap........................ 1

LR6 alkaline battery......... 4

Options

The following options are available for the IR4000 series. Ask

your authorized Hioki distributor or reseller when ordering.

* L9787 Test Lead, L9788-10 Test Lead with Remote Switch (Red) and

L9788-11TestLead Setwith Remote Switchare allexclusively designed

for the HIOKI IR4000 series. Do not use for any other purpose.

Options

□L9787 Test Lead * (1.2 m)

□L9787-91 Breaker Pin

(Pin length 70 mm and 48 mm from the tip has

width 2.5 mm. The rest have width 3.8 mm.)

Breaker pin for model L9787.

□L9788-10 Test Lead with Remote Switch

(Red) * (1.2 m)

Test lead with MEASURE key for the line side

measurement. Measurement can be started by

pressing the key. There is a light at the tip which

can be switched on by pressing the LIGHT key

on the IR4000 Series. Earth side lead is not

attached.

□L9788-11 Test Lead Set with Remote

Switch *

Set of the model L9788-10 and L9787 with an

EARTH side lead.

□L9788-90 Tip Pin

Replacement Tip Pin for model L9788-10.

□L9788-92 Breaker Pin

(Pin length 123 mm and 65 mm from the tip has

width 2.6 mm.)

Breaker pin for model L9788-10.

□9804-02 Magnetic Adapter

(Ø11 mm Corresponding standard screw: M6

Button head screw)

Adaptor for connecting a Test lead to the round

head screw by means of magnetism. The tip of

adaptor is a concave shape in order to fit the

round head screw. Put an adaptor on the tip of

the earth side lead of a L9787 Test Lead or

L9788-01 Complete Test Lead.

Safety Information

索引

This manual contains information and warnings essential for

safe operation of the instrument and for maintaining it in safe

operating condition. Before using it, be sure to carefully read the

following safety precautions.

Safety Information

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. Using the instrument in a way not

described in this manual may negate the provided safety

features. 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 Symbols

In the manual, the symbol indicates particularly

important information that the user should read before

using the instrument.

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.

Indicates that dangerous voltage may be present at this

terminal.

Indicates a double-insulated device.

Indicates a grounding terminal.

Indicates DC (Direct Current).

Indicates AC (Alternating Current).

Safety Information

The following symbols in this manual indicate the relative impor-

tance of cautions and warnings.

Indicates that incorrect operation presents an extreme

hazard that could result in serious injury or death to the

user.

Indicates that incorrect operation presents a significant

hazard that could result in serious injury or death to the

user.

Indicates that incorrect operation presents a possibility

of injury to the user or damage to the instrument.

Indicates advisory items related to performance or

correct operation of the instrument.

Symbols for Various Standards

Thissymbol indicates thatthe product conformsto regulations

set out by the EC Directive.

WEEE marking:

This symbol indicates that the electrical and electronic

appliance is put on the EU market after August 13, 2005, and

producers of the Member States are required to display it on

the appliance under Article 11.2 of Directive 2002/96/EC

(WEEE).

Other Symbols

Indicates a prohibited action.

(p. ) Indicates the location of reference information.

*Indicates that descriptive information is provided below.

The screen of this instrument displays characters in thefollowing manner.

Safety Information

索引

We define measurement tolerances in terms of rdg. (reading)

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

rdg. (reading or displayed value)

The value currently being measured and indicated on the

measuring instrument.

rdg. (reading or displayed value)

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-significant digit.

This instrument complies with CAT III safety requirements.

To ensure safe operation of measurement instruments, IEC 61010

establishes safety standards for various electrical environments,

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

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

severeaccident,andmust

be carefully avoided.

Use of a measurement

instrument that is not

CAT-rated in CAT II to CAT IV measurement applications could result in a

severe accident, and must be carefully avoided.

Accuracy

Measurement categories

CAT II:

Primary electrical circuits inequipment connected to an AC

electrical outlet by a power cord (portable tools, household

appliances, etc.)

CAT II covers directly measuring electrical outlet

receptacles.

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).

Operating Precautions

Follow these precautions to ensure safe operation and to obtain

the full benefits of the various functions.

Before using the instrument for the first time, verify that it oper-

ates normally to ensure that no damage occurred during storage

or shipping. If you find any damage, contact your authorized

Hioki distributor or reseller.

Operating temperature and humidity (p.30)

Accuracy guarantee for temperature and humidity (p.31)

Operating Precautions

Preliminary Checks

To prevent an electric shock accident, confirm that the

white or red portion (insulation layer) inside the cable is

not exposed. If a color inside the cable is exposed, do not

use the cable.

Setting up the Instrument

Avoid the following locations that could cause an accident or damage to

the instrument.Exposed to direct

sunlight

Exposed to high

temperature

In the presence of

corrosive or explosive

gases

Exposed to water,

oil, other chemicals,

or solvents

Exposed to high

humidity or

condensation

Exposed to strong

electromagnetic fields

Near electromagnetic

radiators

Exposed to high

levels of particulate

dust Near induction heating

systems

(e.g., high-frequency

induction heating

systems and IH cooking

utensils)

Subject to vibration

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