Hioki CM4002 User manual

EN
Instruction Manual
July 2021 Revised edition 1
CM4002A961-01 21-07H
CM4002
CM4003
ACLEAKAGE
CLAMPMETER
EN
Instruction Manual
July 2021 Revised edition 1
CM4002A961-01 21-07H
CM4002
CM4003
ACLEAKAGE
CLAMPMETER
Read carefully before use.
Keep for future reference.
Read carefully before use.
Keep for future reference.
HIOKI CM4002A961-01

HIOKI CM4002A961-01

i
CM4002A961-01
Checking Package Contents
Main body Accessories
AC Leakage Clamp Meter
(equipped with
output function)
CM4003CM4002
LR6 Alkaline batteries ×2
C0203 Carrying Case
Instruction Manual (this manual)
Please visit Hioki’s website to download
other language versions in PDF format.
Operating Precautions
(0990A907)
Accessories CM4003
L9097 Connection Cable
(approx. 1.5 m)
L9510 USB Cable
(Type-A to Type-C, 1 m)
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Details of Intended Operations
Setting the range p. 18
Installing the batteries and Z3210 Wireless Adapter p. 23, p. 27
Performing long-duration measurement using an external power supply CM4003 p. 28
Locating an insulation failure (identifying GFCI and RCD trip events) p. 36
Reducing the e󰀨ects of noise (lter function) p. 39
Freezing the readouts to take readings (hold function) p. 41
Viewing the maximum, minimum, average, and peak values of the measured data p. 44
Receiving an alarm if a measured value exceeds the threshold value
(comparator function) p. 46
Checking for intermittent leakage
• Using the output function to perform monitoring with a recorder CM4003
• Using the GENNECT Cross app to perform monitoring (event recording function)
p. 49
p. 60
Using the wireless communications (GENNECT Cross, HID function) p. 56
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Contents
Checking Package Contents .........................................................................................i
Details of Intended Operations.....................................................................................ii
Introduction...................................................................................................................1
Overview ...........................................................................................................2
Principle of leakage current measurement........................................................3
Notations ......................................................................................................................4
Options .........................................................................................................................7
Safety Information ........................................................................................................8
Operating Precautions................................................................................................12
Part Names.................................................................................................................16
Operation Keys...........................................................................................................18
Display Panel..............................................................................................................20
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Contents
1 Preparing for Measurement 23
1.1 Installing Batteries and the Z3210 Wireless Adapter ......................................23
Installation/replacement procedure .................................................................27
1.2 Using an External Power Supply CM4003 .......................................................28
1.3 Inspection Prior to Measurement ....................................................................29
2 Performing Measurement 31
2.1 Measuring Leakage Current............................................................................31
Measurement procedure .................................................................................32
Locating an insulation failure (identifying GFCI and RCD trip events) ............36
Precautions for measuring the load current ....................................................38
2.2 Filter Function (FILTER)..................................................................................39
2.3 Hold Function (HOLD).....................................................................................41
2.4 Max., Min., Average, and Peak Values (MAX/MIN).........................................44
2.5 Inrush current measurement (AC INRUSH)....................................................45
2.6 Comparator Function (COMP) ........................................................................46
2.7 Simple event recording function......................................................................47
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Contents
2.8 Output function (OUTPUT) CM4003 ................................................................49
Output rate (A-to-V conversion ratio) ..............................................................50
Setting the output function (RMS/WAVE)........................................................51
2.9 Auto-Power Save Function (APS)...................................................................53
2.10 Backlight..........................................................................................................54
Display backlight .............................................................................................54
Warning backlight............................................................................................55
2.11 Wireless Communications Function................................................................56
Using GENNECT Cross ..................................................................................56
Z3210-to-Excel®direct data entry function
(Excel®direct input function, HID function) .....................................................61
2.12 Power Key Combinations................................................................................65
3 Specications 67
3.1 GeneralSpecications ....................................................................................67
3.2 Input,Output,andMeasurementSpecications .............................................70
Accuracy list ....................................................................................................74
Outputspecications CM4003 ..........................................................................79
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Contents
3.3 Compatibility with IEC/EN 61557-13 ...............................................................80
4 Maintenance and Service 81
Calibration .......................................................................................................81
Cleaning ..........................................................................................................81
Disposing of the Instrument ............................................................................81
4.1 Troubleshooting...............................................................................................82
Before sending the instrument to be repaired .................................................82
4.2 Error Displays..................................................................................................86
Index 87
WarrantyCerticate
HIOKI CM4002A961-01

1
Introduction
Introduction
Thank you for choosing the Hioki CM4002/CM4003 AC Leakage Clamp Meter. To ensure your
ability to get the most out of this instrument over the long term, please read this manual carefully
and keep it available for future reference.
Carefully read the separate document entitled “Operating Precautions” before use.
Intended audience
This manual has been written for use by individuals who use the product or provide information
about how to use the product. In explaining how to use the product, it assumes electrical
knowledge (equivalent of the knowledge possessed by a graduate of an electrical program at a
technical high school).
Trademarks
• Microsoft Excel is a registered trademark or a trademark of Microsoft Corporation in the United States and
other countries.
• The Bluetooth®word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use
of such marks by Hioki E.E. Corporation is under license. Other trademarks and trade names are those of
their respective owners.
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Introduction
Overview
This AC leakage clamp meter allows you to measure from minute leakage current to load
current.
Accurately measuring minute leakage current
• The 6.000 mA range is incorporated to ensure the measurement with a high resolution of
1 µA.
• High permeability magnetic material is used for the jaws.
E󰀨ects of external electromagnetic noise are minimized to enable the measurement with
high reproducibility.
Measuring a wide range of current from leakage current to load
current
• Accuracy ranging from 0.060 mA to 200.0 A is ensured.
• Frequency band ranging from 15 Hz to 2 kHz
For more information, please visit our website.
GENNECT Cross > Learn instruments
> Leakage current measurement
https://gennect.net/en/cross/leakage-current-measurement
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Introduction
Principle of leakage current measurement
The instrument is designed based on the
principle of electromagnetic induction. The
magnetic ux corresponding to the current
owing through the conductor to be measured
is detected by a current transformer that
consists of a magnetic core and coil. The
current transformer generates the current
corresponding to the magnetic eld (secondary
current). The detection resistor converts this
secondary current into the voltage to calculate
the value of the current owing through the
conductor.
Magnetic core
Magnetic ux corresponding
to current being measured Conductor under
measurement
Current to be
measured
Coil
Detection
resistor
Secondary
current
-
For detailed information, please visit our website.
Principle of Current Sensors
https://www.hioki.com/en/products/listUse/?category=17
► Measurement principles: CT current sensors
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Notations
Notations
Safety notations
In this document, the severity levels of risk and hazard are classied as follows.
DANGER
Indicates an imminently
hazardous situation that,
if not avoided, will result in
death or serious injury.
Indicates a high-voltage
hazard. Failure to verify
safety or improper handling
of the instrument could lead
to an electric shock, burn, or
death.
WARNING
Indicates a potentially
hazardous situation that, if
not avoided, could result in
death or serious injury.
IMPORTANT
Indicates information or
content that is particularly
important from the stand
point of operating or
maintaining the instrument.
CAUTION
Indicates a potentially
hazardous situation that, if
not avoided, could result in
minor or moderate injury.
Indicates an action that must
not be performed.
NOTICE
Indicates potential risks of
damage to the supported
product (or to other property).
Indicates an action that must
be performed.
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Notations
Symbols shown on the instrument
Indicates the need for caution or the presence of danger. For more information about locations
where this symbol appears on instrument components, see the “Operating Precautions”
(p. 12), warning messages listed at the beginning of operating instructions, and the
accompanying document entitled “Operating Precautions.”
Indicates AC (Alternating Current).
Indicates that the instrument may be connected to or disconnected from a live conductor.
Indicates an instrument that has been protected throughout by double insulation or reinforced
insulation.
Indicates that using the instrument in an external magnetic eld of exceeding 30 A/m is
prohibited.
Symbols for various standards
Indicates the Waste Electrical and Electronic Equipment Directive (WEEE Directive) in EU
member states.
Indicates that the product conforms to regulations required by the EU Directive.
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Notations
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
Accuracy labeling
Hioki expresses accuracy as error limit values specied in terms of percentages of reading and of full scale.
Reading
(display value)
Indicates the value displayed by the instrument. Limit values for reading errors
are expressed as a percentage of the reading (“% of reading” or “% rdg”).
Full scale
(maximum display value)
Indicates the maximum display value for each measurement range.
Measurement range values for the instrument indicates that maximum display
value. Limit values for full-scale errors are expressed as a percentage of full
scale (“% of full scale” or “% f.s.”).
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Options
Other notations
Indicates useful advice concerning instrument performance and operation.
CM4003 Indicates that the item is applicable to the CM4003 only.
APS (bold) The names of elements on the screen are printed in bold.
(p. ) Indicates the page number to reference.
*Instructs the reader to see below for additional information.
Options
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. Check Hioki’s website for
the latest information.
Z3210 Wireless Adapter C0203 Carrying Case
L9097 Connection Cable (Approx. 1.5 m)
CM4003
9704 Conversion Adapter
(BNC-to-banana plug)
CM4003
Z1013 AC Adapter
(power cord included)
CM4003
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Safety Information
Safety Information
This instrument is designed to conform to IEC 61010 Safety Standards and has been thoroughly
tested for safety prior to shipment. However, using the instrument in a way not described in this
manual may negate the provided safety features.
Carefully read the following safety notes before using the instrument.
DANGER Bodily injury
Familiarize yourself with the instructions and precautions in
this manual before use.
Failure to do so could cause improper use of the instrument, resulting in serious
bodily injury or damage to the instrument.
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Safety Information
WARNING Bodily injury, re
Do not attempt to modify, disassemble, or try to repair the
instrument.
Doing so could cause serious bodily injury or re.
If you have not used any electrical measuring instruments
before, you should be supervised by a technician who has
experience in electrical measurement.
Failure to do so could cause the operator to experience an electric shock.
Moreover, it could cause serious events such as heat generation, re, and an arc
ash due to a short-circuit.
Protective gear
WARNING Electric shock
Use appropriate protective insulation.
Performing measurement using this instrument involves live-line work. Failure
to use protective gear could cause the operator to experience an electric shock.
Using protective gear is prescribed under applicable laws and regulations.
Continued on next page →
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Safety Information
Measurement categories
To ensure safe operation of measuring instruments, IEC 61010 species the measurement
categories, which classies testing and measuring circuits into three categories according to the
types of mains circuits to which they are intended to be connected.
DANGER Bodily injury
Do not use a measuring instrument for measurements on
a mains circuit that exceeds the range of the measurement
category rated for the instrument.
Do not use a measuring instrument without a measurement
category rating for measurements on a mains circuit.
Failure to observe this can cause a serious bodily injury and damage to the
instrument and other equipment.
The CM4002 conforms to the safety requirements for CAT IV (300 V) and CAT III (600 V)
measuring instruments.
The CM4003 conforms to the safety requirements for CAT III (300 V) measuring instruments.
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Safety Information
Measurement category II (CAT II)
Applicable to test and measuring circuits connected directly to utilization points (socket outlets and similar
points) of the low-voltage mains installation.
EXAMPLE: Measurements on household appliances, portable tools, and similar equipment, and on the
consumer side only of socket-outlets in the xed installation.
Measurement category III (CAT III)
Applicable to test and measuring circuits connected to the distribution part of the building’s low-voltage
mains installation.
EXAMPLE: Measurements on distribution boards (including secondary meters), photo voltaic panels,
circuit breakers, wiring, including cables, bus-bars, junction boxes, switches, socket-outlets
in the xed installation, and equipment for industrial use and some other equipment such as
stationary motors with permanent connection to the xed installation.
Measurement category IV (CAT IV)
Applicable to test and measuring circuits connected at the source of the building’s low-voltage mains
installation.
EXAMPLE: Measurements on devices installed before the main fuse or circuit breaker in the building
installation.
T Outlet
CAT II
Internal Wiring
Distribution Panel
Service Entrance
Service Drop
CAT IV
Power Meter
CAT III
Fixed Installation
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Operating Precautions
Operating Precautions
Observe the following precautionary information to ensure that the instrument can be used
safely and in a manner that allows it to perform as described in its specications. Carefully
read the separate document entitled “Operating Precautions” before use. Use of the instrument
should conform not only to its specications, but also to the specications of all accessories,
options, and other equipment in use.
HIOKI CM4002A961-01