Hioki 3470 User manual

Printed on recycled paper Printed in Japan
Edited and published by Hioki E.E. Corporation
Technical Support Section
• All reasonable care has been taken in the production of this manual,
but if you find any points which are unclear or in error, please contact
your supplier or the International Sales and Marketing Department at
Hioki headquarters.
• In the interests of product development, the contents of this manual are
subject to revision without prior notice.
• The content of this manual is protected by copyright. No reproduction,
duplication or modification of the content is permitted without the
authorization of Hioki E.E. Corporation.
HEAD OFFICE
81 Koizumi, Ueda, Nagano 386-1192, Japan
TEL [phone] FAX [phone]
E-mail: [email protected] URL http://www.hioki.com/
(International Sales and Marketing Department)
HIOKI USA CORPORATION
6 Corporate Drive, Cranbury, NJ 08512, USA
TEL [phone] FAX [phone]
3470
MAGNETIC FIELD HiTESTER
December 2008 Revised edition 4 3470A981-04 08-12H
Instruction Manual

Contents i
1
2
3
4
5
6
7
8
10
11
APP
Index
Contents
Introduction ................................................................................1
Inspection ..................................................................................2
Safety Information .....................................................................4
Operating Precautions ...............................................................6
1Overview 9
1.1 Product Overview ............................................... 9
1.2 Features ...........................................................11
1.3 Measurement Example .................................... 13
1.4 Names and Functions of Parts .........................17
1.4.1 3470 Magnetic Field HiTester ............................17
1.4.2 3471 Magnetic Field Sensor ..............................21
1.4.3 3472 Magnetic Field Sensor ..............................22
1.5 Definition of Measurement Items ......................23
1.6 Screen Configuration and Key Operation
Work Flow ........................................................24
1.7 Measurement Work Flow ................................. 27
2 Measurement Preparations 29
2.1 Supplying Power .............................................. 29
2.1.1 Connecting the AC Adapter ..............................29
2.1.2 Inserting and Replacing Batteries ......................30
2.2 Connecting a Magnetic Field Sensor ............... 32
2.3 Turning the Power On and Off .........................33
3 Measurement Procedure 35
3.1 Measurement Preparations ..............................35
3.2 Pre-measurement Check ................................. 37
3.3 Measuring Magnetic Flux Density .................... 38
3.4 Measuring Exposure Level (General Public) ....41

Contents
ii
3.4.1 Preparing for Exposure Measurements .............41
3.4.2 Exposure Level ..................................................43
3.4.3 Measurement Procedure ...................................45
3.5 Measuring Exposure Level (Occup.) ................48
3.6 Holding Maximum Value of the Resultant
RMS Values ..................................................... 51
3.7 Checking and Deleting Saved Data ................. 52
3.7.1 Checking Saved Data ........................................52
3.7.2 Deleting Saved Data ..........................................54
3.7.3 Deleting All Saved Data .....................................57
4 Advanced Functions 59
4.1 Checking Remaining Battery Power ................. 59
4.2 Function for Saving Settings (Saving Set
Modes and Measurement Ranges) ..................60
4.3 Initializing Function (Returning Settings to
Their Factory Defaults) .....................................61
4.4 Other Functions ................................................ 62
4.4.1 Setting Auto Power Off (Saving Battery Power) 62
4.4.2 Setting Audible Key Feedback ..........................64
4.4.3 Changing Unit Indication ...................................66
4.4.4 Setting the Slow Function ..................................68
4.4.5 Turning on the MEM. MODE key in MAX.
HOLD or output mode .......................................70
5 Using Application Software 73
5.1 Overview ..........................................................73
5.2 Installing ...........................................................74
5.2.1 Installing the Driver ............................................74
5.2.2 Installing software ..............................................82
5.3 Graphic Representation of Measurement
Values .............................................................. 85
5.4 Transferring Recorded Data to a PC ................88
5.5 Configuring the 3470 ........................................91

Contents iii
1
2
3
4
5
6
7
8
10
11
APP
Index
5.6 Viewing Version Information .............................93
6 Advanced Measurements 95
6.1 Outputting Waveform and Resultant
RMS Values ..................................................... 95
7 Specifications 101
7.1 3470 Magnetic Field HiTester ........................101
7.1.1 Basic Specifications .........................................101
7.1.2 General Specifications .....................................103
7.1.3 Application Software ........................................104
7.1.4 Equations and Functions .................................105
7.2 3471 Magnetic Field Sensor ...........................107
7.3 3472 Magnetic Field Sensor ...........................108
8 Maintenance and Service 109
8.1 Troubleshooting .............................................. 109
8.2 Error Indication ............................................... 110
8.3 Version Display .............................................. 110
8.4 Cleaning .........................................................110
8.5 Service ........................................................... 110
Appendix 111
Appendix 1 ICNIRP Guideline (Basic Restrictions) ..111
Appendix 2 Coupling Factor in the ICNIRP
Guidelines ............................................. 112
Appendix 3 Graph Showing the Range of
ICNIRP 1998 Guidelines .......................113

Contents
iv

Introduction 1
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3
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5
6
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13
Introduction
Thank you for purchasing the HIOKI “Model 3470 Magnetic Field HiT-
ester.” To obtain maximum performance from the instrument, please
read this manual first, and keep it handy for future reference.
While every effort has been made to ensure that the content of this man-
ual is correct, we would appreciate it if you notified your dealer or local
Hioki agent should you notice any unclear, incorrect or missing informa-
tion.
Microsoft, Windows, and Windows NT are registered trademarks of
Microsoft Corporation in the United States and/or other countries.
• Unless otherwise specified, “Windows” represents Windows 98, Me,
Windows NT, Windows 2000, Windows XP.
• Dialog box represents a Windows dialog box.
• Menus, commands, dialogs, buttons in a dialog, and other names on
the screen and the keys are indicated in brackets.
This instruction manual contains instructions for use of the device
with the3471 and 3472 Magnetic Field Sensor.
Note
Trademarks in this manual
Notation
Mouse Operation
Click: Press and quickly release the left button of the mouse.
Right-click: Press and quickly release the right button of the mouse.
Double click: Quickly click the left button of the mouse twice.
Drag: While holding down the left button of the mouse, move the
mouse and then release the left button to deposit the cho-
sen item in the desired position.
Activate: Click on a window on the screen to activate that window.

2Inspection
Inspection
Verifying Package Contents
When you receive the instrument, 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 rep-
resentative.
3470 (1) USB cable (1)CD (PC application
software) (1)
LR6 alkaline battery (4)
Instruction manual
(1)
3470-01 Magnetic Field HiTester
3471 Magnetic Field Sensor (1)
9445-02 AC Adapter
or
9445-03 AC Adapter (EU)
(1)
Carrying Case (1)

Inspection 3
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9
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11
12
13
Shipping precautions
Use the original packing materials when transporting the instrument, if
possible.
3470 (1) USB cable (1)CD (PC application soft-
ware) (1)
LR6 alkaline battery (4)
Instruction man-
ual (1)
3470-02 Magnetic Field HiTester
3471 Magnetic Field Sensor (1) 3472 Magnetic Field
Sensor (1)
9758 Extention Cable (1) 9759 Output Cable (1) Carrying Case (1)
9445-02 AC Adapter
or
9445-03 AC Adapter (EU)
(1)
This instrument has been calibrated to operate with the provided sen-
sor and should be used only with this sensor. Thus if multiple instru-
ments are used, Before use make sure that the matching number (up
to the hyphen) on the tester and the sensor are identical.

4Safety Information
Safety Information
This manual contains information and warnings essential for safe opera-
tion of the instrument and for maintaining it in safe operating condition.
Before using it, be sure to carefully read the following safety precautions.
Safety Symbols
The following symbols in this manual indicate the relative importance of
cautions and warnings.
This instrument is 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 instrument. 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 instrument defects.
In the manual, the symbol indicates particularly impor-
tant information that the user should read before using
the instrument.
The symbol printed on the instrument indicates that
the user should refer to a corresponding topic in the man-
ual (marked with the symbol) before using the relevant
function.
Indicates DC (Direct Current).
Indicates that incorrect operation presents an
extreme hazard that could result in serious injury or
death to the user.
Indicates that incorrect operation presents a signifi-
cant hazard that could result in serious injury or
death to the user.
Indicates that incorrect operation presents a possi-
bility of injury to the user or damage to the instru-
ment.
Indicates advisory items related to performance or
correct operation of the instrument.

Safety Information 5
2
3
4
5
6
7
8
9
10
11
12
13
Other Symbols
Measurement Categories (Overvoltage categories)
To ensure safe operation of measurement instruments, IEC 61010
establishes safety standards for various electrical environments, catego-
rized as CAT I to CAT IV, and called measurement categories. These are
defined as follows.
CAT I : Secondary electrical circuits connected to an AC electrical
outlet through a transformer or similar device.
CAT II : Primary electrical circuits in equipment connected to an AC
electrical outlet by a power cord (portable tools, household
appliances, etc.)
CAT III : Primary electrical circuits of heavy equipment (fixed installa-
tions) connected directly to the distribution panel, and feeders
from the distribution panel to outlets.
CAT IV : The circuit from the service drop to the service entrance, and
to the power meter and primary overcurrent protection device
(distribution panel).
Higher-numbered catego-
ries correspond to electri-
cal environments with
greater momentary
energy. So a measure-
ment device designed for
CAT III environments can
endure greater momen-
tary energy than a device
designed for CAT II.
Using a measurement instrument in an environment designated with a
higher-numbered category than that for which the instrument is rated
could result in a severe accident, and must be carefully avoided.
Never use a CAT I measuring instrument in CAT II, III, or IV environments.
The measurement categories comply with the Overvoltage Categories of
the IEC60664 Standards.
Indicates the location of reference information.
(⇒p. )
* Indicates that descriptive information is provided below.
Indicates a prohibited action.
Do not touch high voltage lines with the
sensor or the instrument. They are not
insulated and the application of high volt-
age to this instrument may expose testing
personnel to high voltage that may at
worst lead to electric shock and death.

6Operating Precautions
Operating Precautions
Follow these precautions to ensure safe operation and to obtain the full
benefits of the various functions.
Preliminary Checks
•Before using the instrument the first time, verify that it operates nor-
mally to ensure that the no damage occurred during storage or ship-
ping. If you find any damage, contact your dealer or Hioki
representative.
• Before using the instrument, make sure that the insulation on the
cables is undamaged and that no bare conductors are improperly
exposed. Using the instrument in such conditions could cause an
electric shock, so contact your dealer or Hioki representative for repair.
Installation Environment
Operating temperature/humidity range: 0 to 40°C, 80%RH or less
(no condensation)
Temperature and humidity for guaranteed accuracy: -10 to 50°C,
80%RH or less (no condensation)
Avoid the following locations that could cause an accident or damage to the instru-
ment.
Connections
Exposed to direct sunlight
Exposed to high tempera-
ture
In the presence of corro-
sive or explosive gases
Exposed to liquids
Exposed to high humidity
or condensation
Exposed to strong elec-
tromagnetic fields
Near electromagnetic
radiators
Exposed to high levels of
particulate dust Subject to vibration
Connect only designated devices to the instrument terminals. To pre-
vent damage, do not apply a voltage that is outside the specified range
to the instrument.

Operating Precautions 7
2
3
4
5
6
7
8
9
10
11
12
13
Handling
Handling with the CD
• The instrument and the 3471 and 3472 Magnetic Field Sensors are
built mainly from nonmagnetic metals and contain hardly any mag-
netic materials. Thus if the instrument is heated by an all metal IH and
other induction heating system the sensor may melt or be damaged,
because of the nonmagnetic metals.
• The 3471 and 3472 Magnetic Field Sensors have a plastic housing that
may melt if brought into contact with a hot measurement object (cookpot
or other hot object).
• Do not expose cables to excessive stress as they may break. Especially,
the 9758 Extention Cable and 9759 Output Cable should be handled with
care.
• Always hold the disc by the edges, so as not to make fingerprints on
the disc or scratch the printing.
• Never touch the recorded side of the disc. Do not place the disc
directly on anything hard.
• Do not wet the disc with volatile alcohol or water, as there is a possi-
bility of the label printing disappearing.
• To write on the disc label surface, use a spirit-based felt pen. Do not
use a ball-point pen or hard-tipped pen, because there is a danger of
scratching the surface and corrupting the data. Do not use adhesive
labels.
• Do not expose the disc directly to the sun's rays, or keep it in condi-
tions of high temperature or humidity, as there is a danger of warping,
with consequent loss of data.
• To remove dirt, dust, or fingerprints from the disc, wipe with a dry
cloth, or use a CD cleaner. Always wipe radially from the inside to the
outside, and do no wipe with circular movements. Never use abra-
sives or solvent cleaners.
• Hioki shall not be held liable for any problems with a computer system
that arises from the use of this CD, or for any problem related to the
purchase of a Hioki product.

8Operating Precautions

1.1 Product Overview 9
2
3
4
5
6
7
8
9
10
11
12
13
1
The 3470 Magnetic Field HiTester is designed to measure magnetic flux
density and level of magnetic field exposure.
• It can be used to assess conformance to ICNIRP 1998 and EN50366
(IEC62233) and in research on magnetic field exposure.
• The instrument is designed to be used with the 3471 and 3472 Mag-
netic Field Sensors.
Make sure that the matching number (up to the hyphen) on the tester
and the magnetic field sensor are identical.
Overview 1
1.1 Product Overview
• Magnetic field exposure refers to the exposure that may affect human
health.
The 3470 Magnetic Field HiTester can be used to measure conform-
ance to Guidelines for Limiting Exposure to Time-varying Elec-
tric, Magnetic, and Electromagnetic Fields (ICNIRP 1998) and a
standard for measuring magnetic fields of electrical household
appliances (EN50366).
For more information on ICNIRP: "Appendix" (P.111)
• This tester can measure magnetic flux density and magnetic field
exposure generated by products manufactured at a customer site or
produced by devices in a customer environment.
It can measure magnetic flux density and magnetic field exposure
generated by products manufactured at a customer site or produced
by devices in a customer environment.

10 1.1 Product Overview
*1: Available units are T, G, and A/m and the magnetic permeability of air being 4π×10-7 H/m,
the relationships between the different units are as follows: 1T=104G, 1 A/m=4π×10-7 T.
*2: This value is obtained by inverse filtering of magnetic flux density values stated in
the ICNIRP1998 Guideline.
Use the exposure level figures indicated for the general public in IEC62233 or Since
the reference levels for magnetic field exposure indicated in ICNIRP1998 for occu-
pational exposure is approximately five times that of general public exposure, the in-
dicated values for occupational exposure is roughly a fifth of general public exposure.
"Appendix" (P.111)
Functions Functions in detail Reference
Basic Magnetic flux
density *1
measurements
Measuring the magnetic flux density of appli-
ances and environments
Magnetic flux density (10 Hz to 400 kHz):
For wide range measurements of magnetic flux density
Magnetic flux density (10 Hz to 2 kHz):
For magnetic flux density of power frequencies
Magnetic flux density (2 kHz to 400 kHz):
For magnetic flux density of high frequencies other
than power frequencies
3.3 (P. 38)
Exposure
level*2
measurements
Measuring the exposure level of appliances
and environments
Exposure level (general public):
This level is used for measuring exposure to mag-
netic fields prevalent in environments where we can
assume the presence of people of all age groups and
health conditions (people who are not normally
aware of the presence of magnetic fields) as well as
exposure to magnetic fields generated by applianc-
es and other consumer devices manufactured to
conform to EN50366 (or IEC6233) and other stan-
dards.
This level corresponds to the general public expo-
sure level in ICNIRP 1998.
Exposure level (occupational):
This level applies to measurements of exposure to
magnetic fields in environments that involve
adults only who are generally exposed under
known conditions and are trained to be aware of
potential risk and to take appropriate precautions.
This level corresponds to the occupational expo-
sure level in ICNIRP 1998.
3.4 (P. 41)
3.5 (P. 48)
Application Output
functions A function that makes it possible to output
waveforms and resultant RMS value of mag-
netic flux density or exposure levels.
6.1 (P. 95)
Application
software use • This function allows you to do the following:
• to set up the 3470 from your PC
• to upload data saved on the 3470 to your PC
• to monitor RMS values
5 (P. 73)
How big is the magnetic field?

1.2 Features 11
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1
The large LCD display makes for ease of viewing measurement values.
Two magnetic field sensors of different sizes, the 3471 and 3472, are
available for the tester
The 3470 automatically recognizes an attached sensor so there is no
need to set a conversion rate whenever a sensor is connected.
The tester allows the user to switch between the following measurement
modes: magnetic flux density, exposure (General Public), and exposure
(Occup.).
The user can switch between different axes (x-axis, y-axis and z-axis
and resultant values) in each measurement mode
Both waveform ( ) and resultant RMS ( ) output can be
selected.
With a 9759 Output Cable you can connect the 3470 to an oscilloscope
or recorder for output of waveforms and resultant RMS values.
1.2 Features
Easy to view LCD display
Automatic recognition of magnetic field sensors
The 3471, intended for normal application, has a cross-sectional areaof
100 cm2.
The 3472 sensor has a cross-sectional area of 3 cm2and is designed
for measuring detailed distribution.
3471 3472
Switchable measurement methods
Switchable axis
Waveform and resultant RMS value output
Waveform out-
put : enables measurement of magnetic field waveforms when
the tester is connected to an oscilloscope or recorder.
Resultant RMS
value output : permits recording of resultant values on a recorder or log-
ger, which is convenient for long-term measurements.

12 1.2 Features
Records up to 99 measurement data.
Measuring conditions can be stored to enable quick access to the same
operating conditions each time you power up.
The tester can be powered both by battery and AC power to enable
measurements in the field as well as permitting installation for long-term
measurements.
Memory function
Function for saving settings
Dual power supply

1.3 Measurement Example 13
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1
This section provides a measurement example using this tester.
Measurement location : Anechoic chamber*1
Device under test : exposure level (general public) of magnetic
fields generated by an electric rice cooker
Measurement location, distance*2 :around, 30 cm *3
State of device under test *2 : Half-filled with water, and maxi-
mum heat setting
Measurement time : a few seconds at each measurement point
Storage of measurement data: tester memory and PC memory
Required equipment : 3470
3471 or 3472 sensor
Batteries
AC adapter
Product whose magnetic field is to be
tested
PC
*1: A location where magnetic fields other than that generated by the DUT is minimal
and where there are nomagnetic fields or metal objects inthe vicinity that could be
affected by the measurements. An anechoic chamber is not required if the above
conditions can be met.
Measurements performed in an anechoic chamber should be performed at a cer-
tain distance from the walls, which are made of a magnetic material.
*2 : Since this state depends on the DUT, refer to the IEC62233, EN50366 or other rel-
evant specifications to determine the required state of the DUT during testing.
*3 : This value comes from IEC62233 Ed.1.0. Note that it may change when the stan-
dard is revised.
1.3 Measurement Example
Objective: to measure magnetic field exposure generated by products to determine
whether they pass or fail the requirements to obtain a CE marking.
Be sure to measure areas that
generate maximum exposure to
magnetic fields.
In this example, r1 = 30 cm.
DUT (device under test)

14 1.3 Measurement Example
Preparations
1. Insert batteries in the tester or connect it to the AC adapter and fold
out the stand. Also connect the 3471 or 3472 Magnetic Field Sensors.
2. Connect the tester to a PC using a USB cable.
3. Install the driver and the PC software on the PC.
1
Insert batteries in the battery
compartment on the rear and fold
out the stand.
Plug the adapter into the AC
adapter terminal and the
mains plug into an AC wall
outlet.
Insert the sensor in the sensor
terminal.
USB cable