Hioki 3144-20 Manuale utente

Contents

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

Inspection.................................................................. 1

Safety Notes ............................................................. 2

Operating Precautions .............................................. 5

Chapter 1 Overview 11

1.1 Product Overview ...................................... 11

1.2 Features .................................................... 13

1.3 Names and Functions of Parts .................. 14

1.4 Quick Reference........................................ 21

Chapter 2 Measurement Preparations 25

2.1 Attaching the Strap.................................... 26

2.2 Installing the Batteries ............................... 27

2.3 Connecting the AC Adapter....................... 29

2.4 Connecting the 9741 CLAMP ON VOLTAGE

SENSOR ................................................... 30

2.4.1 Connecting the Sensor to the

Voltage Sensor Input Terminal....... 30

2.4.2 Connecting the Instrument to the

Line being Measured...................... 32

2.5 Connecting Signals to the BNC Input

Terminal .................................................... 34

2.6 Connecting to Ground ............................... 36

2.7 Turning the Power On/Off ......................... 38

2.8 Connecting the Earphone.......................... 40

2.9 Connecting Signals to the Output

Terminal .................................................... 41

Contents

Chapter 3 Setup and Measurement 43

3.1 Sample Measurement ............................... 43

3.2 Monitoring Measurement Data [MONI] ..... 48

3.3 Recording Data [REC]............................... 50

3.4 Deleting Memory ....................................... 53

3.5 Viewing Recorded Data [VIEW] ................ 54

3.6 Setting Date and Time .............................. 55

Chapter 4 Analysis of Recorded Data 57

4.1 General ..................................................... 57

4.2 Installation ................................................. 58

4.2.1 Installing the driver......................... 58

4.2.2 Installing software .......................... 68

4.3 Setting the Clock ....................................... 71

4.4 Transferring Data to the PC ...................... 73

4.5 Analyzing Recorded Data on the PC ........ 78

4.6 Saving Images of Waveform Windows ..... 85

4.7 Printing a Waveform Window.................... 86

4.8 Analyzing Saved Recorded Data with

Excel ......................................................... 88

4.9 Error Information ....................................... 89

Chapter 5 Specifications 93

5.1 Main Unit Specifications............................ 93

5.2 Clamp Specifications............................... 100

Chapter 6 Maintenance and Service 103

6.1 Battery Replacement............................... 103

6.2 Cleaning and Storage ............................. 104

6.3 Repair and Servicing............................... 104

iii

Contents

6.4 Error Indications and Corrective Action... 105

6.5 System Mode .......................................... 106

6.6 Instrument Disposal................................. 111

Contents

Introduction

Thank you for purchasing the HIOKI "Model 3144-

20 NOISE SEARCH TESTER." To obtain maxi-

mum performance from the instrument, please

read this manual first, and keep it handy for future

reference.

Registered Trademarks:

Windows and Excel are registered trademarks of

Microsoft Corporation in the United States and/or

other countries.

When you receive the instrument, inspect it care-

fully 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.

Confirming package contents

• 9741 CLAMP ON VOLTAGE SENSOR..........1

• Instruction Manual..........................................1

• LR6 alkaline batteries.....................................6

• 9445-02 AC ADAPTER

(UL, SA10-9010N, SINO-AMERICAN) or

9445-03 AC ADAPTER

(CEE, SA10-9010G, SINO-AMERICAN ) .......1

• PC software(CD-R) ........................................1

• USB cable ......................................................1

• Earphone........................................................1

• Strap...............................................................1

• Carrying case ................................................. 1

Introduction

Inspection

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 it, be sure to carefully read the follow-

ing safety precautions.

Safety Symbols

Safety Notes

This instrument is designed to comply with

IEC 61010 Safety Standards, and has been

thoroughly tested for safety prior to ship-

ment. 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 precau-

tions in the manual before use. We disclaim

any responsibility for accidents or injuries not

resulting directly from product defects.

In the manual, the symbol indicates particu-

larly important information that the user should

read before using the instrument.

The symbol printed on the instrument indi-

cates that the user should refer to a correspond-

ing topic in the manual (marked with the

symbol) before using the relevant function.

Indicates a double-insulated device.(9741)

Indicates a grounding terminal.

Indicates DC (Direct Current).

Safety Notes

Symbols in Use

The following symbols in this manual indicate the

relative importance of cautions and warnings.

Accuracy

We define measurement tolerances in terms of f.s.

(full scale) and rdg. (reading) with the following

meanings:

• f.s. (maximum display value or scale length)

The maximum displayable value or scale length.

This is usually the name of the currently selected

range.

• rdg. (reading, displayed or indicated value)

The value currently being measured and indi-

cated on the measuring instrument.

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 sig-

nificant hazard that could result in serious injury

or death to the user.

Indicates that incorrect operation presents a pos-

sibility of injury to the user or damage to the

instrument.

Indicates advisory items related to performance

or correct operation of the instrument.

Indicates the prohibited action.

❖Indicates the location of reference information.

Safety Notes

The 3144-20 NOISE SEARCH TESTER complies with CAT I

safety requirements.

The 9741 CLAMP ON VOLTAGE SENSOR complies with

CAT III 200 V safety requirements.

To ensure safe operation of measurement instruments, IEC

61010 establishes safety standards for various electrical en-

vironments, categorized as CAT I to CAT IV, and called mea-

surement categories. These are defined as follows.

CAT I Secondary electrical circuits connected to an AC

electrical outlet through a transformer or similar de-

vice.

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 out-

lets.

CAT IV The circuit from the service drop to the service en-

trance, and to the power meter and primary overcur-

rent protection device (distribution panel).

Higher-numbered categories correspond to electrical environ-

ments 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 designat-

ed with a higher-numbered category than that for which the in-

strument is rated could result in a severe accident, and must

be carefully avoided.

Never use a CAT I measuring instrument in CAT II, III, or IV

environments.

The measurement categories comply with the Overvoltage

Categories of the IEC60664 Standards.

Measurement categories (Overvoltage categories)

Operating Precautions

Follow these precautions to ensure safe operation

and to obtain the full benefits of the various func-

tions.

• Before using the instrument the first time, verify

that it operates normally to ensure that the no

damage occurred during storage or shipping. If

you find any damage, contact your dealer or

Hioki representative.

• Before using the instrument, make sure that the

insulation on the 9741 CLAMP ON VOLTAGE

SENSOR is undamaged and that no bare con-

ductors are improperly exposed. Using the

instrument in such conditions could cause an

electric shock, so contact your dealer or Hioki

representative for repair.

Operating Precautions

Before Use

Installation, Operating Environment, and Handling

of the Instrument

• Do not allow the instrument to get wet, and

do not take measurements with wet hands.

This may cause an electric shock.

• Do not use the instrument where it may be

exposed to corrosive or combustible

gases. The instrument may be damaged or

cause an explosion.

Operating Precautions

Operating Environment

Observe the following to avoid damage to

the instrument.

• Installation and Operating Environment

Between 0°C and 40°C; 80% RH or less;

indoors only.

• Do not store or use the instrument where it

could be exposed to direct sunlight, high

temperature or humidity, or condensation.

Under such conditions, the instrument may

be damaged and insulation may deterio-

rate so that it no longer meets specifica-

tions.

• This instrument is not designed to be

entirely water- or dust-proof. To avoid dam-

age, do not use it in a wet or dusty environ-

ment.

• Do not use the instrument near a device

that generates a strong electromagnetic

field or electrostatic charge, as these may

cause erroneous measurements.

• To avoid damage to the instrument, protect

it from vibration or shock during transport

and handling, and be especially careful to

avoid dropping.

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