Hioki 2331-20 Manuale utente

INSTRUCTION MANUAL

POWER METER

2331-20

MODULE

Contents

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

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

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

Notes on Use ............................................................ 5

Chapter 1 Overview 11

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

1.2 Major Features .......................................... 12

1.3 Name and Function of the Parts................ 19

1.4 Dimension Diagrams ................................. 21

Chapter 2 Settings 23

2.1 Setting the Module ID................................ 23

Chapter 3 Preparations 25

3.1 Installing the Module ................................. 25

3.1.1 Installing the Module Base ............. 25

3.1.2 Mounting a Module on the Module

Base ............................................... 25

3.2 Connecting the Clamp Sensor to Module.. 26

3.3 Connecting the Voltage Cable to the

Module....................................................... 28

3.4 Connecting Alarm Output .......................... 29

3.5 Connecting to the Measured Line ............. 30

Contents

Chapter 4 Others 37

4.1 Alarm Output ............................................. 37

4.1.1 Output Rating................................. 37

4.1.2 Target of Alarm Monitoring ............ 38

4.2 Insulation of Internal Circuit....................... 39

Chapter 5 Specifications 41

5.1 Basic Specifications .................................. 41

5.2 Function Specifications ............................. 46

5.3 General Specifications .............................. 48

Chapter 6 Maintenance and Service 51

6.1 Cleaning .................................................... 51

6.2 Service ...................................................... 51

Introduction

Thank you for purchasing the HIOKI “Model 2331-

20 POWER METER MODULE”. 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 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

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

Options

9695-02 CLAMP ON SENSOR (50 Arms)

9695-03 CLAMP ON SENSOR (100 Arms)

9661-01 CLAMP ON SENSOR (500 Arms)

9765* CLAMP ON SENSOR (5 Arms)

(See "When using Model 9765 " (p.10))

9238 CLAMP SENSOR CABLE

* Not complied with the CE marking.

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

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.

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 a grounding terminal.

Indicates DC (Direct Current).

Indicates AC (Alternating Current).

Safety Notes

The following symbols in this manual indicate the

relative importance of cautions and warnings.

Other Symbols

Accuracy

We define measurement tolerances in terms of f.s.

(full scale), and rdg. (reading) values, with the fol-

lowing meanings:

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.

Indicates the prohibited action.

❖Indicates the reference.

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.

Safety Notes

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 I to CAT IV, and called

measurement categories. These are defined as follows.

CAT I Secondary electrical circuits connected to an AC

electrical outlet through a transformer or similar

instrument.

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 instrument (distribution panel).

Higher-numbered categories correspond to electrical

environments with greater momentary energy. So a

measurement instrument designed for CAT III environments

can endure greater momentary energy than a instrument

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.

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)

Notes on Use

Follow these precautions to ensure safe operation

and to obtain the full benefits of the various func-

tions.

Notes on Use

• The maximum input voltage is as follows.

U INPUT: 300 Vrms, 424.3 V peak

ALARM : 30 VDC

CLAMP SENSOR INPUT

: 1.5 Vrms, 2.2 V

peak

Attempting to measure voltage in excess

of the maximum input could destroy the

instrument and result in personal injury or

death.

• The maximum rated voltage between input

terminals and ground is 300 Vrms.

Attempting to measure voltages exceeding

300 Vrms with respect to ground could

damage the instrument and result in

personal injury.

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.

the instrument

to get wet.

Do not allow

Corrosive or

combustible

gases

Notes on Use

Do not use the instrument near a source of

strong electromagnetic radiation, or near a

highly electrically charged object.

These may cause a malfunction.

Operation and Installation environment.

This instrument should be installed and operated

indoors only, between 0 and 50°C (32 to 122°F)

and 80% RH or less.

This instrument is not designed to be entirely

water- or dust-proof.

Do not use it in an especially dusty environment,

nor where it might be splashed with liquid. This

may cause damage.

When the module is used in a dusty environment,

place it in a dustproof case and take measures to

ensure heat dissipation.

Do not store or use the instrument where it

could be exposed to direct sunlight, high tem-

perature or humidity, or condensation.

Under such conditions, the instrument may be

damaged and insulation may deteriorate so that it

no longer meets specifications.

To avoid damage to the instrument, protect it

from physical shock when transporting and

handling.

Be especially careful to avoid physical shock from

dropping.

Do not obstruct the ventilation holes.

Ventilation holes for heat radiation are provided on

the top and rear panels of the instrument. Leave

sufficient space around the ventilation holes and

install the instrument with the holes unobstructed.

Installation of the instrument with the ventilation

holes obstructed may cause a malfunction or fire.

Direct sunlight

Dust

emperature o

humidity

Electromagnetic

radiation or

highly

charged object

electrically

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