Hioki DT4281 Bedienungsanleitung

DT4282

DIGITAL MULTIMETER

DT4281

Instruction Manual

Mar. 2021 Revised edition 8

DT4281A981-08 21-03H

DT4282

DIGITAL MULTIMETER

DT4281

Instruction Manual

Mar. 2021 Revised edition 8

DT4281A981-08 21-03H

HIOKI DT4281A981-08

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 ...........................................................21

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...........................................28

2.4 Installation in Measurement Location.........31

Using the instrument with the stand.......................... 31

Hanging the instrument with the strap ......................31

3 Performing Measurements 33

3.1 Inspection Before Use ..................................33

3.2 Measuring Voltage.........................................38

Measuring AC voltage...............................................38

Measuring DC voltage ..............................................39

Measuring synthesized voltage of DC and AC .........39

Measuring voltage of DC and AC components.........40

3.3 Measuring Frequencies ................................40

3.4 Decibel Conversion (dBm/dBV) ...................41

Ind.Appx.

DT4281A981-08

HIOKI DT4281A981-08

Contents

3.5 Checking Continuity .....................................42

3.6 Measuring Diode ...........................................43

3.7 Measuring Resistance ..................................44

3.8 Measuring Temperatures..............................45

3.9 Measuring Electrostatic Capacities.............47

3.10 Measuring Conductances

(DT4282) ................48

3.11 Measuring Current ........................................49

Measuring DC/AC..................................................... 49

3.12 Measuring AC Using Clamp-on Probe

(DT4281) .........................................................51

3.13 4-20 mA (0-20 mA) % Conversion................ 53

4 Using Instrument Conveniently 55

4.1 Selecting the Measurement Range..............55

Measuring with the auto range .................................55

Measuring with the manual range............................. 55

4.2 Retaining the Measured Value .....................57

Retaining the measured value manually (HOLD) ..... 57

Automatically retaining the measured value

when the value stabilizes (AUTO HOLD)..................57

4.3 When the Measured Value Fluctuates

(SLOW) ...........................................................59

4.4 Removing the Harmonic Components

of the Inverter (FILTER).................................60

4.5 Checking the Maximum/Minimum Value

(MAX/MIN) ......................................................61

4.6 Checking the Peak Value (V • A PEAK) .......62

4.7 Checking the Relative Value/Performing

Zero Adjustment............................................63

Checking the relative value (REL) ............................63

Performing zero adjustment...................................... 64

HIOKI DT4281A981-08

iii

Contents

4.8 Using the Memory Function.........................65

Saving the measured value (MEM) ..........................65

Reading the memory data (READ) ........................... 67

Clearing the memory data (CLEAR) ......................... 68

Clearing all memory data.......................................... 68

4.9 Muting the Buzzer .........................................69

4.10 Turning On the Backlight..............................69

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

4.12 Using Plus/Minus Judgment Function

for Measurement Value.................................71

4.13 Communicating with PC............................... 72

4.14 Setting and Checking the System ...............74

Checking that all indicators are displayed ................74

Checking the software version of the instrument...... 74

Changing the temperature display unit .....................75

4.15 Resetting the System....................................76

Table of default settings ............................................76

4.16 Power-on Option Table .................................77

5 Specications 79

5.1 Electrical Characteristics .............................79

5.2 Accuracy Table ..............................................81

5.3 GeneralSpecications .................................95

6 Maintenance and Service 99

6.1 Repair,Inspection,and Cleaning.................99

6.2 Troubleshooting ..........................................101

6.3 Error Display................................................105

6.4 Replacing Fuses..........................................106

Ind.Appx.

HIOKI DT4281A981-08

Contents

Appendix Appx.1

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

Appx. 2 Operation Example...........................Appx.2

Appx. 3 Capacitor Capacity Measurement

Principle.............................................Appx.3

Appx. 4 Dedicated Software

(DMM Communicator) ......................Appx.4

HIOKI DT4281A981-08

Introduction

Thank you for purchasing the HIOKI DT4281, DT4282 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.

DT4281 or DT4282

DT4281 DT4282

L9207-10 Test Lead (p. 28)

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

LR6 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/

Ind.Appx.

HIOKI DT4281A981-08

Options (sold separately)

The options listed below are available for the instrument. To order

an option, please contact your authorized Hioki distributor or

reseller.Options are subject to change. Please check Hioki’s website

for the latest information.

Connecting cables

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

*2: CATIV 600 V/CATIII 1000 V

*3: CATIII 1000 V *5: CATIII 300 V/CATII 600 V

*4: CATIII 600 V *6: 30 V AC/60 V DC

*7: CATIII 600 V/CATII 600 V *8: CATII 1000 V

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 (3 A)

L4934*5

Small Alligator Clip Set (3 A)

L4935*2

Alligator Clip Set (10 A)

L9243*8

Grabber Clip

(1 A)

L4936*4

Bus Bar Clip Set

(5 A)

L4937*3

Magnetic Adapter Set (2 A)

L4932*1

Test Pin Set (10 A)

L9207-10*1

Test Lead

(10 A)

L4930*2

Connection Cable Set

(10 A)

(Length: 1.2 m)

L4931*2

Extension Cable Set (10 A)

(Length: 1.5 m, with the

coupling connector)

L4938*7

Test Pin Set (10 A)

L4939*4

Breaker Pin Set (10 A)

* Figures in parentheses: maximum rated current

HIOKI DT4281A981-08

Options (sold separately)

For the clamp current measurement (only compatible with the DT4281)

9010-50, 9018-50, 9132-50*4

Clamp-on Probe

9704 Conversion Adapter

Clamp-on probe Rated

current

Diameter of the measurable

conductor

9010-50, 9018-50 500 A rms φ46 mm or less

9132-50 1000 A rms φ55 mm or less, 80 × 20 mm bus-bar

Temperature measurement

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

DT4910 Thermocouples (K) (p. 45)

• Temperature measuring junction: Exposed type (welding)

• Sensor length: Approx. 800 mm

• Operating temperature: -40°C to 260°C (temperature

measuring part), -15°C to 55°C (connector)

C0202 Carrying Case

The instrument, test leads, instruction manual, and others

can be stored in the case.

Z5004, Z5020 Magnetic Strap (p. 31)

Attach this strap to the instrument and secure it on the

wall surface such as a metal plate for use.

Ind.Appx.

HIOKI DT4281A981-08

Options (sold separately)

DT4900-01 Communication Package (USB) (p. 72)

A communication adapter, USB cable, PC software,

and communication specications are included.

The instrument data can be stored on the PC.

HIOKI DT4281A981-08

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