Hioki DT4252 Manuale utente

DIGITAL MULTIMETER

Instruction Manual

Aug. 2019 Revised edition 3

DT4251A981-03 19-08H

DT4252

DT4253

DT4254

DT4255

DT4256

DIGITAL MULTIMETER

Instruction Manual

Aug. 2019 Revised edition 3

DT4251A981-03 19-08H

DT4252

DT4253

DT4254

DT4255

DT4256

To customers using Model DT4254

WARNING

Your instrument can be used to measure voltages in

excess of 1000 V DC if and only if both of the following

conditions are satisfied:

1. The circuit under measurement is isolated from

the commercial power grid.

2. The circuit under measurement is isolated from

ground.

e.g.: when measuring the no-load voltage of an

ungrounded PV panel

Do not use the instrument with circuits whose

terminal-to-ground voltage exceeds 1000 V.

Doing so may result in electric shock.

DT4251A981-03

Contents

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

Verifying Package Contents ..............................................1

Options (sold separately) ..................................................2

Safety Notes........................................................................5

Usage Notes......................................................................10

1 Overview 15

1.1 Overview and Features.................................15

1.2 Parts Names and Functions.........................16

1.3 Display ...........................................................22

1.4 Alarm Display and Battery Indicator ...........23

2 Preparation for Measurements 25

2.1 MeasurementWorkow................................25

2.2 Inserting/Replacing Batteries ......................26

2.3 Using Test Leads...........................................29

2.4 Installation in Measurement Location.........32

Using the instrument with the stand.......................... 32

Attaching the magnetic strap ....................................32

2.5 Using the Carrying Case ..............................34

3 Performing Measurements 37

3.1 Inspection Before Use ..................................37

3.2 Measuring Voltage.........................................43

Measuring AC voltage............................................... 43

Measuring DC voltage .............................................. 44

Measurement using the AC and DC automatic

judgment (DT4253,DT4254,DT4255,DT4256)....... 45

3.3 Measuring Frequencies ................................46

3.4 Checking Continuity

(DT4252,DT4253,DT4255,DT4256).............47

3.5 Measuring Diode

(DT4252,DT4253,DT4255,DT4256).............48

3.6 Measuring Resistance

(DT4252,DT4253,DT4255,DT4256).............49

3.7 Measuring Temperatures (DT4253)..............50

3.8 Measuring Electrostatic Capacities

(DT4252,DT4253,DT4255,DT4256).............52

3.9 Measuring Current

(DT4252,DT4253,DT4256)............................53

Measuring DC/AC Current........................................53

3.10 Measuring AC Current Using Clamp-on

Probe

(DT4253,DT4255,DT4256).................56

3.11 Checking the Electric Charge

(DT4254,DT4255,DT4256)............................58

4 Using Instrument Conveniently 59

4.1 Selecting the Measurement Range..............59

Measuring with the auto range .................................59

Measuring with the manual range............................. 59

4.2 Retaining the Measured Value .....................60

Retaining the measured value manually (HOLD) ..... 60

Automatically retaining the measured value

when the value stabilizes (AUTO HOLD)..................61

4.3 Reducing the Effect of the Noise (FILTER) .64

4.4 Checking the Maximum/Minimum/Average 66

4.5 Checking the Relative Value/Performing

Zero Adjustment............................................67

Checking the relative value (REL) ............................ 67

Performing zero adjustment...................................... 69

iii

4.6 Turning On the Backlight..............................70

4.7 Using the Auto Power Save (APS)...............70

4.8 Using Plus/Minus Judgment Function

for Measurement Value

(DT4254,DT4255,DT4256)............................71

4.9 Communicating with PC...............................72

4.10 Power-on Option Table .................................74

Changing the temperature display unit .....................77

5 Specications 79

5.1 GeneralSpecications .................................79

5.2 Electrical Characteristics .............................81

5.3 Accuracy Table..............................................83

6 Maintenance and Service 95

6.1 Repair,Inspection,and Cleaning.................95

6.2 Troubleshooting ............................................96

6.3 Error Display..................................................99

6.4 Replacing Fuses..........................................100

Appendix Appx.1

Appx. 1 RMS and Average .............................Appx.1

Introduction

Thank you for purchasing the HIOKI DT4252, DT4253, DT4254,

DT4255, DT4256 Digital Multimeter. To obtain maximum

performance from the product, please read this manual rst, and

keep it handy for future reference.

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

specications, contact your authorized Hioki distributor or reseller.

Check the package contents as follows.

Instrument (The holster has been attached.)

DT4251 DT4252 DT4253

DT4254 DT4255 DT4256

DT4251 DT4252 DT4253

DT4254 DT4255 DT4256

DT4251 DT4252 DT4253

DT4254 DT4255 DT4256

DT4252

DT4253

DT4255

DT4254

DT4256

L9207-10 Test Lead

(p. 29)

9243 graber L4937 マグネットアダプ

タ

L4934 小ワニグチ

マグネ付ストラップ

L9207-10

DM4910 熱電対

DT4911TestLead

DT4912TestLead

L4930 接続ケーブル

L4931renketu

L4931 延長ケーブル

L4932(+9207-10cap)

L4933 コンタクトピン

L4935 ワニ口

L4936 バスバー

LR03 Alkaline battery × 4

電池

ヒューズ

Instruction Manual

(English)

Instruction manuals

may also be available

in other languages.

Please visit our website at

http://www.hioki.com.

Options (sold separately)

The following options are available for the instrument. Contact your

authorized Hioki distributor or reseller when ordering.

Connecting cables

*6: AC33 V/DC70 V

*1: CATIV 600 V/CATIII 1000 V/CATII 1000 V

*2: CATIV 600 V/CATIII 1000 V

*3: CATIII 1000 V

*4: CATIII 600 V

*5: CATIII 300 V/CATII 600 V

*7: CATIII 600V/CATII 600V

L4938*7

Test Pin Set

L4939*4

Breaker Pin Set

9243 graber L4937 マグネットアダプ

タ

L4934 小ワニグチ

マグネ付ストラップ

L9207-10

DM4910 熱電対

DT4911TestLead

DT4912TestLead

L4930 接続ケーブル

L4931renketu

L4931 延長ケーブル

L4932(+9207-10cap)

L4933 コンタクトピン

L4935 ワニ口

L4936 バスバー

9243 graber L4937 マグネットアダプ

タ

L4934 小ワニグチ

マグネ付ストラップ

L9207-10

DM4910 熱電対

DT4911TestLead

DT4912TestLead

L4930 接続ケーブル

L4931renketu

L4931 延長ケーブル

L4932(+9207-10cap)

L4933 コンタクトピン

L4935 ワニ口

L4936 バスバー

9243 graber L4937 マグネットアダプ

タ

L4934 小ワニグチ

マグネ付ストラップ

L9207-10

DM4910 熱電対

DT4911TestLead

DT4912TestLead

L4930 接続ケーブル

L4931renketu

L4931 延長ケーブル

L4932(+9207-10cap)

L4933 コンタクトピン

L4935 ワニ口

L4936 バスバー

9243 graber L4937 マグネットアダプ

タ

L4934 小ワニグチ

マグネ付ストラップ

L9207-10

DM4910 熱電対

DT4911TestLead

DT4912TestLead

L4930 接続ケーブル

L4931renketu

L4931 延長ケーブル

L4932(+9207-10cap)

L4933 コンタクトピン

L4935 ワニ口

L4936 バスバー

9243 graber L4937 マグネットアダプ

タ

L4934 小ワニグチ

マグネ付ストラップ

L9207-10

DM4910 熱電対

DT4911TestLead

DT4912TestLead

L4930 接続ケーブル

L4931renketu

L4931 延長ケーブル

L4932(+9207-10cap)

L4933 コンタクトピン

L4935 ワニ口

L4936 バスバー

9243 graber L4937 マグネットアダプ

タ

L4934 小ワニグチ

マグネ付ストラップ

L9207-10

DM4910 熱電対

DT4911TestLead

DT4912TestLead

L4930 接続ケーブル

L4931renketu

L4931 延長ケーブル

L4932(+9207-10cap)

L4933 コンタクトピン

L4935 ワニ口

L4936 バスバー

9243 graber L4937 マグネットアダプ

タ

L4934 小ワニグチ

マグネ付ストラップ

L9207-10

DM4910 熱電対

DT4911TestLead

DT4912TestLead

L4930 接続ケーブル

L4931renketu

L4931 延長ケーブル

L4932(+9207-10cap)

L4933 コンタクトピン

L4935 ワニ口

L4936 バスバー

9243 graber L4937 マグネットアダプ

タ

L4934 小ワニグチ

マグネ付ストラップ

L9207-10

DM4910 熱電対

DT4911TestLead

DT4912TestLead

L4930 接続ケーブル

L4931renketu

L4931 延長ケーブル

L4932(+9207-10cap)

L4933 コンタクトピン

L4935 ワニ口

L4936 バスバー

9243 graber L4937 マグネットアダプ

タ

L4934 小ワニグチ

マグネ付ストラップ

L9207-10

DM4910 熱電対

DT4911TestLead

DT4912TestLead

L4930 接続ケーブル

L4931renketu

L4931 延長ケーブル

L4932(+9207-10cap)

L4933 コンタクトピン

L4935 ワニ口

L4936 バスバー

9243 graber L4937 マグネットアダプ

タ

L4934 小ワニグチ

マグネ付ストラップ

L9207-10

DM4910 熱電対

DT4911TestLead

DT4912TestLead

L4930 接続ケーブル

L4931renketu

L4931 延長ケーブル

L4932(+9207-10cap)

L4933 コンタクトピン

L4935 ワニ口

L4936 バスバー

L4933*6

Contact Pin Set

L4934*5

Small Alligator Clip Set

L4935*2

Alligator Clip Set

9243*3

Grabber Clip

L4936*4

Bus Bar Clip Set

L4937*3

Magnetic Adapter Set

L4932*1

Test Pin Set

L9207-10*1

Test Lead

L4930*2

Connection Cable Set

(Length: 1.2 m)

L4931*2

Extension Cable Set

(Length: 1.5 m, with the

coupling connector)

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