Hioki 3273-50 Bedienungsanleitung

Barcode(30×6ｍｍ)

600027354

3276

CLAMP ON PROBE

3273-50

Instruction Manual

Apr. 2015 Revised edition 4

3276A981-04 15-04H

3276A981-04

Contents

Introduction i

Inspection i

Notes on Safety i

Notes on Use iii

Chapter 1 Overview 1

1.1 Product Overview 1

1.2 Features 1

1.3 Names of Parts 2

1.4 Parts of the Sensor 2

Chapter 2 Specifications 5

2.1 Product Specifications 5

2.2 Standards Applying 7

Chapter 3 Measurement Procedure 11

3.1 Notes on Use 11

3.2 Preparations for Measurement 11

3.3 Demagnetizing and Zero Adjustment 12

3.4 Measurement Procedure 16

―――――――――――――――――――――――――――

Introduction

――――――――――――――――――――――――

WARNING

This deviceis 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 device. 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 device defects.

Introduction

Inspection

Notes on Safety

Thank you for purchasing the HIOKI 3273-50,3276

CLAMP ON PROBE. To obtain maximum

performance from the device, please read this

manual first, and keep it handy for future reference.

When you receive the device, 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 dealer or Hioki

representative.

Supplied accessories

Instruction manual 1

3273-50 Soft case 1

3276 Carrying case 1

―――――――――――――――――――――――――――

Notes on Safety

――――――――――――――――――――――――

The symbol printed on the device

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 device.

Indicates that only insulated conductors

suited to the voltage of the circuit under

test can be measured.

Safety Symbols

This manual contains information and warnings

essential for safe operation of the device and for

maintaining it in safe operating condition. Before

using the device, be sure to carefully read the

following safety notes.

iii

―――――――――――――――――――――――――――

Notes on Use

――――――――――――――――――――――――

DANGER

Indicates that incorrect operation

presents an extreme hazard that could

result in serious injury or death 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 device.

NOTE Indicates advisory items related to

performance or correct operation of the

device.

Notes on Use

The following symbols in this manual indicate the

relative importance of cautions and warnings.

Follow these precautions to ensure safe operation

and to obtain the full benefits of the various

functions.

Preliminary Check

Before using the device 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.

―――――――――――――――――――――――――――

Notes on Use

――――――――――――――――――――――――

DANGER

・

Do not measure around a bare conductor.

Doing so may result in short-circuit or electric

shock. Take measurements at a location on an

insulated wire where there is sufficient

insulation for the circuit voltage.

・

Refer to the derating characteristics when

measuring current that includes a

highfrequency component and never measure

any current that exceeds the rated current.

・

Use with high frequencies or strong magnetic

fields may cause the device to become

abnormally hot, resulting in fire, equipment

damage, or burns. (See

“

3 Specifications

”

(p5.))

・

Observe the following to avoid electric shock

and short circuits.

・

Connect the device to the 3269 or the 3272

Power Supply and waveform measurement

instrument (oscilloscope or recorder) first, and

then to the active lines to be measured

・

When the sensor is opened, do not shortcircuit

the conductor being measured or other two

wires with the metal part of the tip.

Be careful to avoid damaging the insulation

surface while taking measurements.

―――――――――――――――――――――――――――

Notes on Use

――――――――――――――――――――――――

DANGER

・

Before clamping the conductor being

measured,make sure that the insulation on the

conductor isundamaged. Also, take care not to

damage theinsulation when clamping the

conductor. Any damageto the insulation could

cause an electric shock.

This instrument is made for use with the 3269

or 3272 POWER SUPPLY.

To prevent fire or damage of the measurement

target and device as well as burns, exercise

caution concerning the following when

measuring high-frequency currents or currents

that contain high-frequency components:

Eddy current loss may cause heating of the

sensor head.

Dielectric heating may cause heating of cord

insulation and other materials.

This device should only be connected to the

secondary side of a breaker, so the breaker

can prevent an accident if a short circuit

occurs. Connections should never be made to

the primary side of a breaker, because

unrestricted current flow could cause a

serious accident if a short circuit occurs.

―――――――――――――――――――――――――――

Notes on Use

――――――――――――――――――――――――

DANGER

Be sure to observe all operating precautions for

the waveform monitoring instrument

(oscilloscope or recorder) and other

measurement instruments to which this device

is connected.

When using a measurement instrument that

does not provide isolation between its input

terminals and chassis or other input terminals,

please pay attention to the following points.

If a signal is applied to an input terminal other

than that to which this device is connected, do

not connect the ground-side terminal to any

non-ground potential. Otherwise, short-circuit

current will flow through the 3269,3272 or this

device from the ground terminal, which could

cause an electrical accident or damage.

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