Hioki Memory HiCorder MR6000 Instruction manual

EN
MR6000-01
MEMORY HiCORDER
MR6000
Quick Start Manual
Feb. 2018 Edition 1
MR6000A965-00 18-02H
p. 6
p. 113
p. 115
p. 118
Be sure to read this manual
before using the instrument. Safety Information
Troubleshooting
Maintenance and Service
Trouble Shooting
Message
When using the instrument
for the first time
Part Names and Functions
Measurement Method p. 18
p. 57

FAQ
To set the measurement range automatically:
Refer to “3.7 Measurement With the Auto-range Setting” (p. 68).
To change the measurement range:
Refer to “Analog channel” (p. 61).
To add a comment to the data:
Refer to “Touch keyboard” (p. 30) and “Analog channel” (p. 61).
To remove noise (low-pass lter):
Refer to “Analog channel” (p. 61).
To change the sampling rate:
Refer to “3.2 Setting Measurement Conditions” (p. 58).
To trigger the instrument:
Refer to “3.4 Setting the Level Trigger” (p. 63).
To scroll the waveform display:
Refer to “4.2 Handling Waveforms” (p. 74).
To read measured values (cursor values) with cursors:
Refer to “4.1 Reading Measured Values (Trace Cursors)” (p. 71).
To save the data:
Refer to “3.6 Saving Data Consisting of Selected Items” (p. 66).
To nd a le size:
Refer to “11.1 Information for Reference Purposes” of Instruction Manual.
To open data with a PC:
Refer to “4.3 Loading Data with PC (Wave Viewer)” (p. 75).
MR6000A965-00
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Measurement procedure
The basic measurement procedure is as follows. For applications, refer to the Manual (PDF) in the
CD provided.
Preparing for measurement (p. 31)
Inspecting the instrument before measurement (p. 57)
Conguring the basic settings for measurement (p. 58)
Set the sampling rate.
Set the recording length (shot).
Setting the input channels (p. 60)
Set the analog channels.
Setting the trigger (p. 63)
Set the triggers.
Starting/stopping a measurement (p. 65)
Saving the data (p. 66)
Analyzing the waveforms (p. 71)
Scroll, zoom in, and zoom out waveforms.
Read measured values (with the trace cursors).
Finishing the measurement

i
2.9 Supplying Power to the
Instrument....................................... 52
Turning on the instrument ...........................52
GND terminal (functional earth terminal) ....52
Turning off the instrument ...........................52
2.10 Setting the Clock............................ 53
2.11 Regulating the Zero Position
(Zero Adjustment) .......................... 54
2.12 Executing the Calibration (When
Model MR8990 is Installed) ........... 56
3 Measurement Method 57
3.1 Inspection Before Measurement... 57
3.2 Setting Measurement Conditions . 58
Sampling rate setting guideline...................59
3.3 ConguringtheInputChannel
Setting ............................................. 60
Analog channel ...........................................61
3.4 Setting the Level Trigger ............... 63
3.5 Starting/Stopping the
Measurement .................................. 65
3.6 Saving Data Consisting of
Selected Items ................................ 66
3.7 Measurement With the Auto-
range Setting .................................. 68
4 Analysis Method 71
4.1 Reading Measured Values
(Trace Cursors)............................... 71
4.2 Handling Waveforms...................... 74
Scrolling waveforms....................................74
Zooming in and out waveforms...................74
4.3 Loading Data with PC (Wave
Viewer)............................................. 75
5 Specications 77
5.1 InstrumentSpecications ............. 77
General specications ................................77
Trigger.........................................................81
Waveform screen........................................83
Setting screen.............................................84
File ..............................................................86
Calculation ..................................................87
Waveform search........................................88
Others .........................................................88
5.2 SpecicationsforOptions ............ 90
Model Z5021 Probe Power Unit..................90
Model U8332 SSD Unit...............................90
Model U8333 HD Unit.................................91
Model 8966 Analog Unit..............................91
Contents
Introduction................................................ 1
Notation...................................................... 2
Verifying Package Contents ..................... 4
Options (sold separately)..............................5
Safety Information..................................... 6
OperationPrecautions.............................. 8
How to Refer to This Document............. 16
1 Overview 17
1.1 ProductOverviewandFeatures ... 17
1.2 PartNamesandFunctions............ 18
1.3 Screen ............................................. 22
Screen conguration...................................22
Explanation for screen contents .................23
1.4 BasicOperation.............................. 25
Touch panel ................................................25
Rotary knob ................................................26
Changing screens and settings ..................27
Key lock ......................................................29
Help (Displaying manuals)..........................29
Key operations with mouse.........................30
Touch keyboard ..........................................30
2 Preparing for
Measurement 31
2.1 Installing and Removing Modules 32
Allocation of modules and channels ...........33
2.2 Attaching Connection Cables ....... 34
Connection cables (voltage, frequency,
rotation speed, count) .................................35
Thermocouple (Temperature) .....................37
Strain gauge transducer .............................38
Current sensor ............................................40
Logic probe (logic signal)............................41
Connection cable (high precision voltage)..41
Connection cable (high voltage) .................42
2.3 Supplying Power to Current
Sensors ........................................... 43
2.4 External Sampling (EXT.SMPL)..... 44
2.5 Connecting the External Control
Terminals......................................... 45
2.6 Connecting the Instrument with
PCs .................................................. 47
2.7 Preparing Storage Devices
(Recording Media).......................... 48
SD memory card.........................................48
USB ash drive ...........................................48
Built-in drive ................................................49
Removing storage devices .........................49
Formatting storage devices ........................50
2.8 OpeningtheMediaBox ................. 51
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Contents
ii
Model 8967 Temp Unit................................93
Model 8968 High Resolution Unit ...............95
Model U8969 Strain Unit.............................97
Model 8970 Freq Unit .................................99
Model 8971 Current Unit...........................101
Model 8972 DC/RMS Unit ........................103
Model 8973 Logic Unit ..............................104
Model MR8990 Digital Voltmeter Unit.......105
Model U8974 High Voltage Unit................107
Model U8975 4ch Analog Unit ..................109
Model U8976 High Speed Analog Unit ..... 111
6 Maintenance and
Service 113
6.1 Trouble Shooting...........................115
Before having the instrument repaired...... 115
6.2 Initializing the Instrument.............117
6.3 Message .........................................118
Error messages ........................................ 119
Warning messages ................................... 119
6.4 Self-Test ........................................ 123
Memory check ..........................................123
Touch panel check ....................................124
KEY check ................................................124
LCD check ................................................124
LAN check ................................................125
Media check..............................................126
System conguration check......................127
6.5 Cleaning the Instrument .............. 128
6.6 Disposing of the Instrument
(Removing the Lithium Battery).. 128
Index Ind.1

1
Introduction
Introduction
Thank you for purchasing the Hioki MR6000, MR6000-01 Memory HiCorder. 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.
Model MR6000-01 Memory HiCorder is a model of Model MR6000 equipped with the following
calculation functions (options).
• Digital lter calculation
• Real-time waveform calculation
Following manuals are provided along with these models. Refer to the relevant manual based on
the usage.
Type Contents Print PDF
Operating Precautions Information on the instrument for safe operations –
Quick Start Manual
(This document) Basic instructions and instrument specications –
Instruction Manual Functions and instructions for the instrument – 
Calculation Guide
(Options)
Method to use the calculation functions, etc.
available only with Model MR6000-01 –
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).
Trademarks
• Microsoft and Windows are either registered trademarks or trademarks of Microsoft Corporation
in the United States and other countries.
• Microsoft and Internet Explorer are either registered trademarks or trademarks of Microsoft
Corporation in the United States and other countries.
• The SD logo is a trademark of SD-3C, LLC.
• FileZilla is a registered trademark or trademark of Tim Kosse.
• WINZIP is a registered trademarks or trademark of Winzip International LLC Company.
• TORX is a registered trademark or trademark of ACUMENT INTELLECTUAL PROPERTIES LLC.
• Any other products and company names are generally either trade names, registered trademarks
or trademarks of respective companies.
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2
Notation
Notation
Concerning Safety
In this document, the risk seriousness and the hazard levels are classied as follows.
DANGER Indicates an imminently hazardous situation that will result in death or serious injury
to the operator.
WARNING Indicates a potentially hazardous situation that may result in death or serious injury to
the operator.
CAUTION Indicates a potentially hazardous situation that may result in minor or moderate injury
to the operator or damage to the instrument or malfunction.
IMPORTANT Indicates information related to the operation of the instrument or maintenance tasks
with which the operators must be fully familiar.
Indicates a high voltage hazard.
If a particular safety check is not performed or the instrument is mishandled, this may
give rise to a hazardous situation; the operator may receive an electric shock, may
get burnt or may even be fatally injured.
Indicates prohibited action.
Indicates the action which must be performed.
Symbols Afxed to the Instrument
Indicates cautions and hazards. When the symbol is printed on the instrument, refer
to “Operation Precautions” (p. 8) in this document and accompanying “Operating
Precautions”.
Indicates the power button that switches the instrument between on and off states.
Indicates a grounding terminal.
Indicates AC (Alternating Current).
Symbols for Standards
Indicates the Waste Electrical and Electronic Equipment Directive (WEEE Directive) in EU
member states.
Indicates that the product conforms to regulations set out by the EU Directive.

3
Notation
Others
*Additional information is presented below.
Indicates the initial setting values of the items. Initialization sets the items to these
values.
(p. ) Indicates the location of reference information.
START
(Bold-faced) Names and keys on the screen are shown in boldface.
[ ] Menus, dialogs, buttons in a dialog, and other names on the screen are indicated in
brackets.
Windows Unless otherwise specied, “Windows” represents Windows 7, Windows 8, and
Windows 10.
Current sensor Sensors measuring current are referred to as “current sensor.”
S/s
The number of times per second the analog input signals are digitized by the
instrument is expressed in terms of “samples per second (S/s).”
Example: “20 MS/s” (20 megasamples per second) indicates that the signal is digitized
20×106times per second.
Accuracy
We dene measurement tolerances in terms of f.s. (full scale) and rdg. (reading) values, with the
following meanings:
f.s. (maximum display value or scale length)
The maximum displayable value or scale length.
rdg. (displayed value)
The value currently being measured and displayed on the measuring instrument.
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4
Verifying Package Contents
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 keys and 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.
Conrm that you have received the following items:
Instrument
Model MR6000 Memory HiCorder or Model MR6000-01 Memory HiCorder
Accessories
Power cord (p. 52)
Operating Precautions (0990A903)
Quick Start Manual (This document)
Instruction Manual CD*
• Instruction Manual
MR6000A966-XX.pdf
• Calculation Guide (Options)
MR6000A968-XX.pdf
(p. 29)
Application disc*
(p. 75)
Blank panel (for slots without modules) (p. 32)
*: The latest version can be downloaded from our website.

5
Verifying Package Contents
Options (sold separately)
Options available only when ordered with the
instrument:
Model U8332 SSD Unit
Model U8333 HD Unit
Model Z5021 Probe Power Unit
Input modules:
Model 8966 Analog Unit
Model 8967 Temp Unit
Model 8968 High Resolution Unit
Model U8969 Strain Unit
Model 8970 Freq Unit
Model 8971 Current Unit
Model 8972 DC/RMS Unit
Model 8973 Logic Unit
Model U8974 High Voltage Unit
Model U8975 4ch Analog Unit
Model U8976 High Speed Analog Unit
Model MR8990 Digital Voltmeter Unit
Carrying case:
Model C1010 Carrying Case
SD memory cards:
Model Z4001 SD Memory Card (2 GB)
Model Z4003 SD Memory Card (8 GB)
USB ash drive:
Model Z4006 USB Drive (16 GB)
Logic probes:
Model 9320-01 Logic Probe
Model MR9321-01 Logic Probe
Model 9327 Logic Probe
Voltage measurement:
Model L9197 Connection Cord
Model L9198 Connection Cord
Model L9790 Connection Cord
Model L9217 Connection Cord
Model 9665 10:1 Probe
Model 9666 100:1 Probe
Model 9322 Differential Probe
Model P9000-01 Differential Probe
Model P9000-02 Differential Probe
Current measurement:
Model CT6700 Current Probe
Model CT6701 Current Probe
Model 3273-50 Clamp on Probe
Model 3274 Clamp on Probe
Model 3275 Clamp on Probe
Model 3276 Clamp on Probe
Model 9709 AC/DC Current Sensor
Model 9272-10 Clamp on Sensor
Model CT6841 AC/DC Current Probe
Model CT6843 AC/DC Current Probe
Model CT6844 AC/DC Current Probe
Model CT6845 AC/DC Current Probe
Model CT6846 AC/DC Current Probe
Model CT6862 AC/DC Current Sensor
Model CT6863 AC/DC Current Sensor
Model CT6865 AC/DC Current Sensor
External sampling measurement
Model L9795-01 Connection Cable
Model L9795-02 Connection Cable
LAN cable:
Model 9642 LAN Cable 9
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6
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.
Before using the instrument, be certain to carefully read the following safety notes:
DANGER
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.
WARNING
With regard to the electricity supply, there are risks of an electric shock, heat
generation, re, and arc ash due to a short-circuits. Individuals using an
electrical measuring instrument for the rst time should be supervised by a
technician who has experience in electrical measurement.
Protective gear
WARNING
This instrument is measured on a live lines. To prevent an electric shock, use
appropriate protective insulation and adhere to applicable laws and regulations.

7
Safety Information
Measurement categories
To ensure safe operation of measuring instruments, IEC 61010 establishes safety standards
for various electrical environments, categorized as CAT II to CAT IV, and called measurement
categories.
DANGER
•Using a measuring 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 measuring instrument that lacks category labeling in a CAT II to
CAT IV measurement environment. Doing so could result in a serious accident.
CAT II: When directly measuring the electrical outlet receptacles of the primary electrical
circuits in equipment connected to an AC electrical outlet by a power cord (portable
tools, household appliances, etc.).
CAT III: When measuring the primary electrical circuits of heavy equipment (xed installations)
connected directly to the distribution panel, and feeders from the distribution panel to
outlets.
CAT IV: When measuring the circuit from the service drop to the service entrance, and to the
power meter and primary overcurrent protection device (distribution panel).
T
Outlet
CAT II
Internal Wiring
Distribution Panel
Service Entrance
Service Drop
CAT IV
Power Meter
CAT III
Fixed Installation
The applicable measurement category is determined based on the module being used.
Refer to “Handling the Instrument and Modules” (p. 9).
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8
Operation Precautions
Operation Precautions
Follow these precautions to ensure safe operation and to obtain the full benets of the various
functions.
Checks before Use
DANGER
If the connection cables or the instrument is damaged, there is a risk of an
electric shock. Perform the following inspection before using the instrument:
•Before using the instrument, check that the coatings of the connection cables
are neither ripped nor torn and that no metal parts are exposed. Using the
instrument under such conditions could result in an electric shock. Replace the
connection cables with those specied by our company.
•Verify that it operates normally to ensure that no damage occurred during
storage or shipping. If you nd any damage, contact your authorized Hioki
distributor or reseller.
Installing the instrument
WARNING
Installing the instrument in inappropriate locations may cause a malfunction of
the instrument or may give rise to an accident. Avoid the following locations:
•Exposed to direct sunlight or high temperature
•Exposed to corrosive or combustible gases
•Exposed to a strong electromagnetic eld or electrostatic charge
•Near induction heating systems (such as high-frequency induction heating
systems and IH cooking equipment)
•Susceptible to vibration
•Exposed to water, oil, chemicals, or solvents
•Exposed to high humidity or condensation
•Exposed to high quantities of dust particles
Unplugging the power cord kills power to the instrument. Be sure to provide
enough unobstructed space to unplug the power cord immediately in an
emergency.
• Do not place the instrument on an unstable table.
• Do not place the instrument on an inclined
surface.
• Do not stack the multiple instruments.
• Vents must not be obstructed.
• To prevent overheating, be sure to leave 5 cm
(2 inches) around the instrument.
• The instrument should be operated only with the
bottom or rear side downwards.
5 cm or wider
Vents
Vents

9
Operation Precautions
Power
CAUTION
To avoid damage to the instrument, do not unplug the power cable from the instrument
when operations are in progress. Be sure to use the power key to turn off the
instrument.
Handling the Instrument and Modules
DANGER
•Do not use the modules or the cables with circuits that exceed those ratings or
specications. Doing so may damage the instrument or cause it to become hot,
resulting in bodily injury.
•The maximum input voltage and maximum rated voltage to earth of the modules
and connection cables are shown in the following table. To avoid electric shock
and damage to the instrument ensure that input voltage never exceeds these
limits. The lower maximum input voltage of the module or connection cord must
be used. If the voltage is exceeded, the instrument will get damaged resulting
in injury. Therefore, do not perform measurement in this case. The same
applies to the maximum rated voltage to earth using an input attenuator for the
measurement. Ensure that the connection does not allow the input voltage to
exceed the maximum rated voltage to earth.
Refer to “5.2 Specications for Options” (p. 90).
Unit rating
Module Maximum input voltage Maximum rated
voltage to earth
Model 8966 Analog Unit 400 V DC 300 V AC/DC (CAT II)
Model 8967 Temp Unit – 300 V AC/DC (CAT II)
Model 8968 High Resolution Unit 400 V DC 300 V AC/DC (CAT II)
Model U8969 Strain Unit – 30 V rms/60 V DC
Model 8970 Freq Unit 400 V DC 300 V AC/DC (CAT II)
Model 8971 Current Unit – Non-isolated
Model 8972 DC/RMS Unit 400 V DC 300 V AC/DC (CAT II)
Model 8973 Logic Unit – Non-isolated
Model U8974 High Voltage Unit 1000 V DC
700 V AC
1000 V AC/DC (CAT III)
600 V AC/DC (CAT IV)
Model U8975 4ch Analog Unit 200 V DC 300 V AC/DC (CAT II)
Model U8976 High Speed Analog Unit
400 V DC (Direct input)
1000 V DC (with Model 9665
10:1 Probe)
1000 V AC/DC (CAT II)
Model MR8990 Digital Voltmeter Unit 500 V DC 300 V AC/DC (CAT II)
ModuleModel MR6000
High
Low
Maximum input voltage
Maximum rated
voltage to earth
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10
Operation Precautions
Connection cable rating
Connection cable Maximum input voltage Maximum rated voltage to earth
Model L9197 Connection Cord 600 V AC/DC 600 V AC/DC (CAT III)
300 V AC/DC (CAT IV)
Model L9198 Connection Cord
300 V AC/DC 600 V AC/DC (CAT II)
300 V AC/DC (CAT III)
Model L9217 Connection Cord
Model L9790 Connection Cord 600 V AC/DC
• With Model L9790-01 Alligator Clip or
Model 9790-03 Contact Pin
600 V AC/DC (CAT II)
300 V AC/DC (CAT III)
• With Model 9790-02 Grabber Clip
300 V AC/DC (CAT II)
150 V AC/DC (CAT III)
Model 9322 Differential Probe 2000 V DC
1000 V AC
• With Grabber Clip
1500 V AC/DC (CAT II)
600 V AC/DC (CAT III)
• With Alligator Clip
1000 V AC/DC (CAT II)
600 V AC/DC (CAT III)
Model L4940 Connection Cable Set 1000 V DC*
• With Model L4935 Alligator Clip or
Model L4932 Test Pin
600 V AC/DC (CAT IV)
1000 V AC/DC (CAT III)
• With Model 9243 Grabber Clip
Model L4936 Bus Bar Clip
600 V AC/DC (CAT III)
• With Model L4937 Magnetic Adapter
Set
1000 V AC/DC (CAT III)
• With Model L4934 Small Alligator Clip
Set
300 V AC/DC (CAT III)
600 V AC/DC (CAT II)
Model P9000-01 Differential Probe
1000 V AC/DC 1000 V AC/DC (CAT III)
Model P9000-02 Differential Probe
*: With Model U8974 High Voltage Unit
DANGER
It is recommended to measure the secondary side of distribution panel for the
U8974 High Voltage Unit. Do not measure the primary side of the distribution
panel because an unrestricted current ow could damage the instrument and
facilities if a short circuit occurs.
WARNING
•To avoid an electric shock and damage to the module and the instrument,
before removing or replacing a module, conrm that the instrument is turned
off and that the connection cords are disconnected.
•To avoid an electric shock, install a blank panel over the slot without a module.
•To prevent the instrument damage or an electric shock, use only the screws that
are originally installed for securing the module in place. If you have lost any
screws or nd that any screws are damaged, please contact your authorized
Hioki distributor or reseller for a replacement.

11
Operation Precautions
CAUTION
To avoid damaging modules, do not touch the connectors, installed in the instrument, to
which the modules are connected.
The mounting screws must be rmly tightened or the module may not perform to
specications, or may even fail.
IMPORTANT
• Install a blank panel over the slot without a module. If the measurement is performed without
the blank panel installed, the instrument may fail to meet specications because of temperature
instability within the modules.
• If there is any unexpected waveform or module is not recognized, send the instrument for
repair.
• Before carrying the instrument, disconnect all cables and remove the USB ash drive and SD
memory card.
• Waveforms can frequently uctuate due to induction potential even when no voltage is applied.
This, however, is not a malfunction.
• This instrument may cause interference if used in residential areas. Such use must be avoided
unless the user takes special measures to reduce electromagnetic emissions to prevent
interference to the reception of radio and television broadcasts.
Precautions during shipment
Store the packaging in which the instrument was delivered, as you will need it when transporting
the instrument.
CAUTION
To avoid damage to the instrument, protect it from physical shock when transporting
and handling. Be especially careful to avoid physical shock due to dropping it.
CD precautions
• Exercise care to keep the recorded side of discs free of dirt and scratches. When writing text on a
disc’s label, use a pen or marker with a soft tip.
• Keep discs inside a protective case and do not expose to direct sunlight, high temperature, or
high humidity.
• Hioki is not liable for any issues your computer system experiences in the course of using this
disc. 9
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12
Operation Precautions
Handling storage devices
CAUTION
• Do not carry the instrument while a USB ash drive left connected. Damage could result.
• Do not subject the HD and SSD units to extreme shock or vibration. Shock can cause it
to be damaged.
• Inserting a media upside down, backward or in the wrong direction may damage the
media and/or the instrument.
• Exercise care when using such products because static electricity could damage the
external media or cause a malfunction of the instrument.
IMPORTANT
• Do not extract media or turn off the instrument while it is accessing the media (while the SAVE
key is lit up in blue). Data stored in the media could be lost.
• No compensation is available for loss of data stored on the external media (USB ash drive,
SD card) or the built-in HD and SSD units of the instrument, regardless of the content or cause
of damage or loss. Be sure to back up any important data stored on the external media (USB
ash drive, SD card), and the built-in HD and SSD units of the instrument.
• When the instrument is left powered off for a long period of time (approx. one year or more),
the data saved to the built-in SSD may be lost. Be sure to back up the data if the instrument is
to be left powered off for a long time.
• With some external media, the instrument may not start up if power is turned on while the external
media is inserted. In such a case, turn off and cycle the instrument.
• The instrument does not support certain types of USB ash drives, such as those that require
ngerprint authentication or a password.
• Number of writes for the external media (USB ash drive, SD memory card) and the SSD unit
of the instrument is limited by their ash memory. If data has been rewritten many times, data
reading and writing capabilities will be degraded. In that case, replace the media.
• Media that can be used to save data is as follows. Use Hioki’s options. (p. 5)
Model Z4006 USB Drive
Model Z4001 SD Memory Card (2 GB)
Model Z4003 SD Memory Card (8 GB)
Model U8333 HD Unit (built-in)
Model U8332 SSD Unit (built-in)

13
Operation Precautions
Before connecting cables
For detailed precautions and instructions on connections, refer to the instruction manuals of your
connection cables.
DANGER
•If the insulation on a connecting cable melts, the metal conductor may be
exposed. Do not use any cable whose metal conductor is exposed. Doing so
could result in an electric shock, burn, or other hazards.
When measuring power line voltage
•Do not connect any connecting cable to the primary side of the distribution
panel. Even if a short-circuit occurs on the secondary side of the distribution
panel, the distribution panel will interrupt a short-circuit current. An unrestricted
primary current ow could damage the instrument and facilities if a short-circuit
occurs.
•To prevent an electrical shock and bodily injury, do not touch any input
terminals on the VT (PT), CT or the instrument when they are in operation.
•Do not leave the measurement cables connected to the instrument in an
environment where voltage may surge beyond the maximum input voltage.
Applying voltage may result in damage to the instrument, or serious accidents.
•Do not short-circuit two wires to be measured by bringing the connection
cables into contact with them. Arcs or such grave accidents are likely to occur.
•To avoid short-circuit or an electric shock, do not touch the metal parts of the
connecting cable clips.
WARNING
•To prevent an electric shock, conrm that the white or red portion (insulation
layer) inside the cable is not exposed. If a color inside the cable is exposed, do
not use the cable.
•Avoid contact between the cable and the measured line. Any contact can cause
the device to malfunction and lead to short-circuits or electric shock.
•Use only the specied connection cables. Using a non-specied cable may
result in incorrect measurements due to poor connection or other reasons.
•To avoid electric shock, do not exceed the lower of the ratings shown on the
modules and connection cords.
CAUTION
• To prevent cord damage, do not step on cords or pinch them between other objects.
Do not bend or pull on cords at their base.
• The cable is hardened in freezing temperatures. Do not bend or pull it to avoid tearing
its shield or cutting cable.
• Do not use any cable terminated with a metal BNC connector for connecting cables
to the BNC jacks on modules. If you connect metal BNC cable to insulated BNC
connector, the insulated BNC connector and instrument may be damaged.
9
8
7
6
5
4
3
2
1
Appx. Ind.

14
Operation Precautions
Before connecting a logic probe to the measurement target
DANGER
To avoid an electric shock, a short-circuit and damage to the instrument, supply
power to the instrument with the power cord provided and measurement target
from a single main.
The ground pin in the logic connector (plug) of Model 9320-01 Logic Probe
(or Model 9327 Logic Probe) is not isolated from the instrument’s ground. The
ground is shared. Connecting the instrument and measurement target to different
mains or using a non-grounded power cord may damage the measurement object
or instrument as current may ow through the logic probes due to the resulting
potential difference between the grounds of the different wiring systems. The
following connection procedure is recommended to avoid this problem:
•Connect the power cord provided
to the instrument and supply
power from the same outlet as the
measurement target.
•Connect the measurement target’s
ground to the GND terminal
(functional earth terminal) of the
instrument.
(Always supply power from a single
main.)
Refer to “2.9 Supplying Power to
the Instrument” (p. 52).
Functional earth terminal
GND Logic
probe
Model MR6000
Model MR6000
Measurement
target
Measurement
target
Logic
probe
Before turning on the instrument
WARNING
•To avoid electrical accidents and to maintain the safety specications of this
instrument, connect the power cord provided only to an outlet.
•Before turning the instrument on, make sure the supply voltage matches that
indicated on its power connector. Connection to an improper supply voltage
may damage the instrument and present an electrical hazard.
CAUTION
• Do not operate the instrument on any of the power sources (UPS or uninterruptible
power supply, DC/AC inverter) that provide rectangular-wave or pseudo-sine-wave
power. Doing so may damage the instrument.