Hioki 3285-20 Manuale utente

3285-20

CLAMP ON AC/DC HiTESTER

Instruction Manual

December 2014 Revised edition 10 3285B981-10 14-12H

Contents

Introduction i

Verifying Package Contents ii

Safety Information iii

Operating Precautions viii

Preliminary Check xv

Chapter 1 Overview 1

1.1 Product Overview 1

1.2 Features 2

1.3 Names and Functions of Parts 3

1.4 Flowchart of button Operations 10

1.4.1 Current Measurements Mode 10

1.4.2 Voltage Measurements Mode 11

1.4.3 Frequency Measurements Mode 12

1.4.4 Resistance Measurements Mode 12

1.5 Modes 13

Chapter 2 Measurement 15

2.1 Preparations 15

2.1.1 Installing or Replacing the Battery 15

2.1.2 Attaching the Hand Strap 16

2.1.3 Turning the Power On and Off 16

2.1.4 Battery Low Warning (When mark lights) 17

2.1.5 Pre-Operation Inspection 18

3285B981-10

2.2 Current Measurement 19

2.2.1 Measuring DC Current (DC A) 19

2.2.2 Measuring AC Current (AC A) 21

2.2.3 Measuring AC/DC Current (AC+DC A) 22

2.2.4 Peak Hold Measurement 24

2.3 Voltage Measurement 26

2.3.1 Measuring DC Voltage (DC V) 26

2.3.2 Measuring AC Voltage (AC V) 27

2.3.3 Measuring AC/DC Voltage (AC+DC V) 28

2.3.4 Peak Hold Measurement 29

2.4 Frequency Measurement 31

2.4.1 Frequency Measurement in Current Mode 31

2.4.2 Frequency Measurement in Voltage Mode 32

2.5 Resistance Measurement 34

2.6 Continuity Check 36

Chapter 3 Useful Functions 39

3.1 Adjusting and Correcting Values 39

3.1.1 Auto-Zero-Adjustment Function 39

3.1.2 Zero-Cancel Correction Function 40

3.2 Pausing and Reading the Display

(Data Hold Function HOLD)41

3.3 Alteration of Counter Updates 42

3.3.1 SLOW mode 42

3.3.2 FAST mode 42

3.4 Storing Values in Memory

(Recording Function REC) 43

3.5 Automatically Turning Power Off

(Auto Power-Off Function APS)47

3.6 Beep Tone 48

Chapter 4 Specifications 49

4.1 Measurement Specifications 49

4.1.1 Current Measurement Specifications 49

4.1.2 Voltage Measurement Specifications 52

4.1.3 Resistance Measurement Specifications 54

4.1.4 Continuity Check 54

4.2 General Specifications 55

Chapter 5 Maintenanceand Service 59

5.1 Cleaning 59

5.2 After service 59

5.3 Troubleshooting 60

5.4 Error Massage 64

i___________________________________________________

Introduction

___________________________________________________

Introduction

Thank you for purchasing the HIOKI "3285-20

Clamp-on AC/DC HiTester."

To obtain maximum performance from the

instrument, please read this manual first, and keep it

handy for future reference.

Request

We have tried to bring this manual as close to

perfection as we could achieve. If perchance you

find any unclear portions, mistakes, omissions, or

the like, we would be most obliged if you could

please notify us of them via any HIOKI agent, or

directly.

ii___________________________________________________

Verifying Package Contents

___________________________________________________

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 specifications, contact your dealer

or Hioki representative.

Main unit

3285-20 Clamp-on AC/DC HiTester

Supplied accessories

9345 Carrying Case 1

L9207-10 Test Lead (red and black) 1

Hand Strap 1

Battery 6F22(006P) 1

Instruction manual 1

iii___________________________________________________

Safety Information

___________________________________________________

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 Information

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.

iv___________________________________________________

Safety Information

___________________________________________________

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 both DC (Direct Current) and AC

(Alternating Current).

Indicates DC (Direct Current).

Indicates that dangerous voltage may be

present at this terminal

Indicates a double-insulated device.

Indicates a grounding terminal.

Indicates that the instrument may be connected

to or disconnected from a live circuit.

Safety Symbols

v___________________________________________________

Safety Information

___________________________________________________

DANGER

Indicates that incorrect operation presents

extreme danger of accident resulting in

death or serious injury to the user.

WARNING

Indicates that incorrect operation presents

a significant hazard that could result in

serious injury or death to the user.

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.

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), rdg. (reading) and dgt. (digit) values,

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 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-significant

digit.Accuracy

Indice

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