Hioki CM4375 Manuale utente
EN
EN
Instruction Manual
Sept.2018 Edition 1
CM4375A961-00 18-09H
CM4375
CM4376
AC/DC CLAMP METER
Instruction Manual
Sept.2018 Edition 1
CM4375A961-00 18-09H
CM4375
CM4376
AC/DC CLAMP METER
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Index
CM4375A961-00
Contents
Introduction.....................................................................................................1
Notation ..........................................................................................................2
Verifying Package Contents ...........................................................................4
Options (sold separately)................................................................................5
Usage Notes...................................................................................................6
1 Overview 11
1.1 Product Overview and Features......................................................... 11
1.2 Part Names ........................................................................................12
2 Making Measurements 13
2.1 Inspection Before Measurement ........................................................13
2.2 Current Measurement ........................................................................14
Manual Hold /Auto Hold...................................................................... 15
Filter Function.....................................................................................18
MAX value/MIN value/AVG value/PEAK value...................................19
Rush current (INRUSH)......................................................................20
2.3 Other Measurement Functions...........................................................21
2.4 Bluetooth®Communications (only for CM4376) ................................. 25
ii
Contents
2.5 Backlight /Auto Power Save (APS)..................................................... 30
2.6 Power-on Option Table....................................................................... 31
3 Specications 33
3.1 GeneralSpecications .......................................................................33
3.2 Inputspecications/Measurementspecications ...............................35
3.3 Accuracy Table ...................................................................................42
4 Repairs, Inspections, and Cleaning 57
4.1 Troubleshooting..................................................................................57
4.2 Error display .......................................................................................59
4.3 Insert/Replace Batteries.....................................................................60
4.4 Cleaning .............................................................................................61
Index 63
WarrantyCerticate
1
索
引
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1
Introduction
Thank you for purchasing the Hioki CM4375, CM4376 AC/DC Clamp Meter. To obtain maximum
performance from the instrument over the long term, be sure to read this manual carefully and
keep it handy for future reference.
Read the separate document “Operating Precautions” carefully before using the instrument.
Target audience
This manual has been written for use by individuals who use the product in question or who teach
others to do so. It is assumed that the reader possesses basic electrical knowledge (equivalent
to that of someone who graduated from the electrical program at a technical high school).
Trademark
•Bluetooth®is a registered trademark of Bluetooth SIG, Inc.(USA). The trademark is used by
HIOKI E.E. CORPORATION under license.
•Android, Google Play, and Google Chrome are trademarks of Google, Inc.
• IOS is a registered trademark of Cisco Systems, Inc. and/or its afliates in the United States
and certain other countries.
•iPhone, iPad, iPad miniTM, iPad Pro, and iPod touch are trademarks of Apple Inc.
•The App Store is a service mark of Apple Inc.
•Any other products and company names are generally either trade names, registered
trademarks or trademarks of respective companies.
2
Notation
Notation
Symbols afxed to the instrument
Indicates cautions and hazards. Refer to the "Usage Notes" (p.6) section of the instruction
manual and the included “Operating Precautions” for more information.
Indicates that the instrument may be connected to or disconnected from a live conductor.
Screen display
The instrument screen displays the alphanumeric characters as follows.
1 2 3 4 5 6 7 8 9 0
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
A different display is used in the case below.
: Wiring break detected
3
Notation
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1
Accuracy
We dene measurement tolerances in terms of f.s. (full scale), rdg. (reading) and dgt. (digit) values with the
following meanings:
f.s. (maximum display value/range)
The maximum displayable value. This is usually the name of the currently selected range.
rdg. (displayed value)
The value currently being measured and displayed on the measuring instrument.
dgt. (resolution)
The smallest displayable unit on a digital measuring instrument, i.e., the input value that causes
the digital display to show a “1” as the least-signicant digit.
4
Verifying Package Contents
Verifying Package Contents
Model CM4375 or CM4376
AC/DC Clamp Meter
Model L9207-10 Test Lead
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
Model C0203 Carrying Case
LR03 Alkaline battery ×2
Instruction Manual*
Operating Precautions (0990A907)
Precautions Concerning Use of
Equipment that Emits Radio Waves (only
for model CM4376)
* Instruction manuals may also be available in other languages.
Please visit our website at http://www.hioki.com
5
Options (sold separately)
索
引
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1
Options (sold separately)
C0203 Carrying Case
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 Contact Pin Set *6
L4934 Small Alligator Clip Set *5
L4935 Alligator Clip Set *2
9243 Grabber Clip *3
L4936 Bus Bar Clip Set *4
L4937 Magnetic Adapter Set *3
L4932 Test Pin Set *1
L9207-10 Test Lead *1
L4930 Connection Cable Set *2
(Length: 1.2 m)
L4931 Extension Cable Set *2
(Length: 1.5 m, with the coupling
connector)
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)
L4938 Test Pin Set *7
L4939 Breaker Pin Set *4
9804 Magnetic Adapter *8
*1: CAT IV 600 V/ CAT III 1000 V/ CAT II 1000 V *5: CAT III 300 V/ CAT II 600 V
*2: CAT IV 600 V/ CAT III 1000 V *6: 33 V AC/ 70 V DC
*3: CAT III 1000 V *7: CAT III 600 V/ CAT II 600 V
*4: CAT III 600 V *8: CAT IV 1000 V
6
Usage Notes
Usage Notes
Follow these precautions to ensure safe operation and to obtain the full benets of the various
functions. Read the separate document “Operating Precautions” carefully before using the
instrument. Ensure that your use of the product falls within the specications not only of the
instrument itself, but also of any accessories, options, batteries, and other equipment being
used.
DANGER
•To prevent an electric shock, do not touch any areas beyond the barrier
while the instrument is in use.
See: "1.2 Part Names" (p.12)
•The maximum measurement current varies with the frequency, and the
current that can be measured continuously is limited. Operating the
instrument at less than this limitation is referred to as derating. Do not
measure currents in excess of the derating curve. Doing so may result in
instrument damage or malfunction, a re, or burn due to sensor heating.
•To prevent an electric shock, conrm that the white portion (insulation layer)
inside the cable is not exposed. If a color inside the cable is exposed, do not
use the cable.
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