Hioki 3181-01 Manuale utente

DIGITAL POWER HiTESTER

INSTRUCTION MANUAL

3181-01

XPHyosi.A5FE.fm1ページ２００６年１２月２８日木曜日午前９時３７分

XPHyosi.A5FE.fm2ページ２００６年１２月２８日木曜日午前９時３７分

Contents

Introduction i

Inspection i

Safety Notes ii

Notes on Use iii

Chapter 1 Introduction 1

1.1 Features 2

Chapter 2 Specifications 3

Chapter 3 Principle of Operation 5

3.1 Power Measurement 5

3.2 Current and Voltage Measurement 7

3.3 Integrated Watt Value 8

3.4 Crest Factor 10

Chapter 4 Names and Functions of Parts 11

Chapter 5 Operation 19

5.1 Preparing for Measurement 19

5.2 Power, Current and Voltage Measurement 22

5.3 Integrated Watt Value Measurement 23

Chapter 6 Applications 27

6.1 Determing the Power Factor 27

6.2 Connecting the Recorder 27

6.3 Printer Connection 28

6.4 External Control Terminal 30

6.5 Data Output Connector 31

6.6 Inputs Exceeding the Measurement Range 34

6.7 Three-Phase Three-Wire Connection 35

Chapter 7 Maintenance and Service 37

7.1 Battery Replacement 37

7.2 Fuse Replacement 39

7.3 Cleaning 40

7.4 Service 40

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Inspection

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ntroduction

nspection

Thank you for purchasing this HIOKI "3181-01 DIGITAL

POWER HiTESTER ." To get the maximum performance

from the unit, please read this manual first, and keep

this at hand.

When the unit is delivered, check and make sure that it

has not been damaged in transit. If the unit is damaged,

or fails to operate according to the specifications, contact

your dealer or HIOKI representative.

Accessory

Instruction Manual 1

Power cord 1

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Safety Notes

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In the manual, this mark indicates explanations

which it is particularly important that the user read

before using the equipment.

DANGE

Indicates that incorrect operation presents extreme

danger of accident resulting in death or serious

injury to the user.

WARNIN

Indicates that incorrect operation presents

significant danger of accident resulting in death or

serious injury to the user.

CAUTIO

Indicates that incorrect operation presents

possibility of injury to the user or damage to the

equipment.

NOTE Denotes items of advice related to performance of

the equipment or to its correct operation.

afety Notes

This Instruction Manual provides information and

warnings essential for operating this equipment in a safe

manner and for maintaining it in safe operating

condition. Before using this equipment, be sure to

carefully read the following safety notes.

Safety symbols

The following symbols are used in this Instruction

Manual to indicate the relative importance of cautions

and warnings.

iii

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Notes on Use

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DANGE

Always connect the voltage cable to the secondary

side of a breaker. On the secondary side of a

breaker, even if the lines are shorted the breaker

can trip and prevent an accident. On the primary

side, however, the current capacity may be large,

and in the event of a short-circuit there may be a

serious accident.

This unit cannot be used on voltage lines of 250

Vrms. If the voltage exceeds 250 VAC, there will be

a short-circuit accident or electrocution accident

will result.

WARNIN

In order to prevent an electrical accident, do not

make any connections while the power supply or

the device to be measured is on. Turn off the

power for both devices before proceeding.

The power supply voltage for this unit is switchable

To avoid electrical accidents, check that the voltage

selector is set correctly for the supply voltage you

are using.

In order to maintain safety and assure the stable

operating performance of this unit, be sure to

connect the ground terminal to a proper ground.

otes on Use

In order to ensure safe operation and to obtain maximum

performance from the unit, observe the cautions listed

below.

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Notes on Use

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CAUTIO

･Before measurement, check the position of the range

switch. The unit may be damaged if current or voltage

exceeds the measurement limit is applied for a long

time.

･Before using the unit, make sure that the sheathing on

the leads is not damaged and that no bare wire is

exposed. If there is damage, replace it with a new one.

･Do not store or use the unit where it will be exposed to

direct sunlight, high temperatures, high humidity, or

condensation. If exposed to such conditions, the unit

may be damaged, the insulation may deteriorate, and

the unit may no longer satisfy its specifications.

･To avoid damage to the unit, do not short the output

terminal and do not input voltage to the output terminal.

NOTE ･After initiating watthour measurement by pressing the

start button, do not alter the settings of the range switch,

the time setting dial or the time unit switch.

･The 3181-01 is not certified for commercial metering.

･The 3181-01 uses a voltage transformer (PT) and current

transformer (CT), which do not transmit DC. It is

therefore not possible to measure a signal (for example

full-wave or half-wave rectified) which includes a DC

component.

･Do not use the 3181-01 to measure equipment with

ratings outside its ranges or whose current consumption

continuously exceeds 15A.

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Chapter 1 Introduction

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Chapter

Introductio

The 3181-01 is a compact, multifunction power meter

providing power, current, voltage and watthour

measurements on equipment such as consumer products.

Current and voltage are indicated as true rms values,

enabling accurate measurements even on distorted

waveforms.

The integrator contains a timer allowing integration time

to be set in ranges 1 to 99 minutes or 1 to 99 hours. With

several output terminals, the 3181-01 can be linked to a

data recorder or a printer, enabling easy recording of

measurement data.

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Chapter 1 Introduction

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.1 Features

(1) Power, current, voltage and watthour measurements in a

single unit

(2) True rms reading of voltage and current values

unaffected by distorted waveforms

(3) Integrator timer can be set in ranges 1 to 99 minutes or 1

to 99 hours. (set timer at 00 for continuous integration)

(4) Auto-zero circuit ensures accurate power and watthour

measurements over long time spans.

(5) Three simultaneous outputs for power, current and

voltage

(6) Connecting the optional 3171 DIGITAL PRINTER to the

data output connector makes it possible to record power

consumption and average power values over time.

(7) Watthour data is protected against power failures by a

battery backup function.

(8) Compact, lightweight and highly portable

Indice

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