Hioki PW3390 User manual

Contents
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Contents
Introduction.................................................................................1
Confirming Package Contents....................................................2
Safety Notes...............................................................................4
Usage Notes...............................................................................7
Chapter 1
Overview __________________________________ 11
1.1 Product Overview.............................................................. 11
1.2 Features............................................................................ 12
1.3 Operating Overview .......................................................... 14
Chapter 2
Names and Functions of Parts,
Basic Operations & Screens__________________ 15
2.1 Names and Functions of Parts.......................................... 15
2.2 Basic Operations............................................................... 18
2.3 Display Items and Screen Types ...................................... 19
2.3.1 Common Display Items .......................................................... 19
2.3.2 Measurement Screen ............................................................. 20
2.3.3 Screen Types ......................................................................... 21
Chapter 3
Measurement Preparations___________________ 25
3.1 Operations in general........................................................ 25
3.2 Initial Instrument Preparations .......................................... 26
3.3 Pre-Operation Inspection .................................................. 28
3.4 Connecting the Power Cord.............................................. 29
3.5 Grounding the Instrument's Functional Earth
(when measuring in noisy environments) .........................29
3.6 Connecting the Voltage Measurement Cables ................. 30
3.7 Connecting the Current Sensors....................................... 30
3.8 Turning the Power On and Off .......................................... 33
3.9 Selecting the Wiring Mode ................................................ 34
3.10 Setting the Current Sensors.............................................. 38
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3.11 Attaching to the Lines to be Measured and Zero Adjustment 41
3.12 Verifying Correct Wiring (Connection Check) ................... 43
Chapter 4
Viewing Measurement Values _________________45
4.1 Measurement Value Display Procedure ........................... 45
4.2 Viewing Power Measurements, and Changing the
Measurement Configuration ............................................. 49
4.2.1 Displaying Power Measurements .......................................... 49
4.2.2 Selecting Ranges................................................................... 51
4.2.3 Selecting the Sync Source..................................................... 56
4.2.4 Frequency Measurement Settings......................................... 58
4.2.5 Selecting the Rectification Method......................................... 60
4.2.6 Setting Scaling (when using VT(PT) or CT)........................... 61
4.2.7 Setting the Low-Pass Filter.................................................... 62
4.3 Integration Value Observation .......................................... 63
4.3.1 Displaying Integration Values ................................................ 63
4.3.2 Setting the Integration Mode.................................................. 66
4.3.3 Manual Integration Method .................................................... 67
4.3.4 Integration Combined with Timing Control............................. 69
4.4 Viewing Harmonic Measurement Values.......................... 72
4.4.1 Displaying the Harmonic Bar Graph ...................................... 72
4.4.2 Displaying the Harmonic List ................................................. 74
4.4.3 Displaying Harmonic Vectors................................................. 75
4.4.4 Selecting the Harmonic Sync Source .................................... 77
4.4.5 Selecting the THD Calculation Method.................................. 78
4.5 Viewing Waveforms .......................................................... 79
4.5.1 Displaying Waveforms ........................................................... 79
4.5.2 Resizing Waveforms.............................................................. 82
4.6 Viewing Noise Measurement Values (FFT Function) ....... 83
4.6.1 Displaying Noise Voltage and Current................................... 83
4.6.2 Setting the Sampling Frequency and Points.......................... 85
4.6.3 Setting the Minimum Noise Frequency.................................. 86
4.6.4 Measurement Channel and Window Function Settings......... 88
4.7 Viewing Efficiency and Loss Measurement Values .......... 89
4.7.1 Displaying Efficiency and Loss .............................................. 89
4.7.2 Selecting the Calculation Formula ......................................... 90
4.7.3 Measurement Examples ........................................................ 91
4.8 Viewing Motor Measurement Values
(Model PW3390-03 only) ................................................. 94
4.8.1 Motor Input Settings............................................................... 96

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4.8.2 Measuring Motor Electrical Angle......................................... 102
4.8.3 Detecting the Motor Rotation Direction................................. 105
Chapter 5
Operating Functions _______________________ 107
5.1 Timing Control Functions ................................................ 107
5.2 Averaging Function ......................................................... 110
5.3 Data Hold and Peak Hold Functions............................... 112
5.3.1 Data Hold Function............................................................... 112
5.3.2 Peak Hold Function .............................................................. 113
5.4 X-Y Plot Function ............................................................ 115
5.5 Delta Star Transform Function........................................ 116
5.6 Selecting the Calculation Method ................................... 118
5.7 Trend Function................................................................ 119
Chapter 6
Changing System Settings __________________ 127
6.1 Initializing the Instrument (System Reset) ...................... 130
6.2 Factory Default Settings.................................................. 131
Chapter 7
Data Saving and File Operations _____________ 133
7.1 Inserting and Removing Storage Media.......................... 134
7.2 The File Operation Screen.............................................. 136
7.3 Media Formatting ............................................................ 137
7.4 Saving Operations .......................................................... 138
7.5 Measurement Data Saving ............................................. 139
7.5.1 Manually Saving Measurement Data.................................... 139
7.5.2 Auto-Saving Measurement Data .......................................... 141
7.5.3 Selecting Measurement Items to Save................................. 143
7.6 Saving Noise Data and Waveform Data ......................... 145
7.6.1 Saving Noise Data................................................................ 145
7.6.2 Saving Wave Data................................................................ 146
7.7 Saving Screen Capture Images ...................................... 147
7.8 Loading Screenshots ...................................................... 148
7.9 Saving Setting Configurations......................................... 149
7.10 Reloading Setting Configurations ................................... 150
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7.11 File and Folder Operations ............................................. 151
7.11.1 Creating Folders .................................................................. 151
7.11.2 Copying Files and Folders ................................................... 152
7.11.3 Deleting Files and Folders ................................................... 154
7.11.4 Renaming Files and Folders................................................ 155
Chapter 8
Connecting External Devices ________________157
8.1 Connecting Multiple PW3390
(Synchronized Measurements) ....................................... 157
8.2 Controlling Integration with External Signals .................. 161
8.3 Using Analog and Waveform D/A Output ....................... 164
8.3.1 Connecting Application-Specific Devices to the Instrument. 164
8.3.2 Output Item Selection .......................................................... 166
8.3.3 Output Level ........................................................................ 169
8.3.4 D/A Output Examples .......................................................... 170
8.4 Connecting the Instrument to a LR8410 Link-compatible Logger .......... 172
8.4.1 Configuring and Connecting the Adapter............................. 173
8.5 Using the Motor Testing.................................................. 174
Chapter 9
Operation with a Computer __________________177
9.1 Control and Measurement via Ethernet ("LAN") Interface 178
9.1.1 LAN Settings and Network Environment
Configuration 178
9.1.2 Instrument Connection......................................................... 180
9.2 Remote Control of the Instrument by Internet Browser .. 182
9.2.1 Connecting to the Instrument............................................... 182
9.2.2 Operating Procedure ........................................................... 183
9.3 Control and Measurement via USB Interface ................. 184
9.3.1 Connecting to the Instrument............................................... 184
9.3.2 After Connecting .................................................................. 184
9.4 Control and Measurement via RS-232C Interface.......... 185
9.4.1 Connecting to the Instrument............................................... 185
9.4.2 Setting the RS-232C Communications Speed..................... 186
Chapter 10
Specifications _____________________________189
10.1 General Specifications.................................................... 189
10.2 Basic Specifications........................................................ 190

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10.3 Functions Specifications ................................................. 199
10.4 Setting Specifications...................................................... 204
10.5 Measurement Item Details .............................................. 207
10.6 Calculation Formula Specifications................................. 210
10.7 Wiring System Diagram Specifications ........................... 217
Chapter 11
Maintenance and Service ___________________ 219
11.1 Cleaning.......................................................................... 219
11.2 Trouble Shooting............................................................. 219
11.3 Error Indication................................................................ 222
11.4 Disposing of the Instrument ............................................ 226
Appendix__________________________________A1
Appendix 1Block Diagram ............................................................ A1
Appendix 2Measurement Data Saving Format............................. A2
Appendix 3Physical Illustration..................................................... A5
Appendix 4Rack Mounting............................................................ A6
Index ______________________________________ i
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Appendix
Index
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Introduction
1
Thank you for purchasing the Hioki PW3390 Power Analyzer. To obtain maximum performance from the
product, please read this manual first, and keep it handy for future reference.
To measure current, the power analyzer requires clamp-on current probes or AC/DC current probes
(Options, (p. 3), afterwards referred to generically as “current sensors”). See your current sensor’s
instruction manual for details.
Trademarks
• CompactFlash is a registered trademark of Sandisk Corporation (USA).
• Microsoft and Windows are either registered trademarks or trademarks of Microsoft Corporation in the
United States and other countries.
• Adobe and Adobe Reader are trademarks of Adobe Systems Incorporated.
• Bluetoothis a registered trademark of Bluetooth SIG, Inc.(USA). The trademark is used by HIOKI
E.E. CORPORATION under license.
• is a trademark of SENA Technologies Co., Ltd..
Product model numbers
Introduction
Product model number Feature
PW3390-01 Basic model (model without motor analysis and D/A output)
PW3390-02 Model with D/A output
PW3390-03 Model with motor analysis and D/A output
Rear side
The product model number is indicated as below depending on a manufacturing date.
Product model number
Product model number

Confirming Package Contents
2
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 specifications, contact your authorized Hioki distributor or reseller.
Confirm that these contents are provided.
Main instrument
PW3390 Power Analyzer ×1
Accessories
Grounded power cord ×1
USB cable ×1
D-Sub connector ×1 (used only with the D/A output function-equipped PW3390-02 or PW3390-03)
Instruction manual ×1
Measurement guide ×1
Input cable labels (to identify voltage cords and current sensor channels) ×2
Please attach to the instrument before use. (p. 26)
Confirming Package Contents

Confirming Package Contents
3
Options
Current measurement options
• 9272-05 Clamp On Sensor (20 A/200 A AC)
• CT6841-05 AC/DC Current Probe (20 A)
• CT6843-05 AC/DC Current Probe (200 A)
• CT6844-05 AC/DC Current Probe (500 A, 20 mm)
• CT6845-05 AC/DC Current Probe (500 A, 50 mm)
• CT6846-05 AC/DC Current Probe (1000 A)
• PW9100-03 AC/DC Current Box (50 A, 3 channels)
• PW9100-04 AC/DC Current Box (50 A, 4 channels)
• CT6862-05 AC/DC Current Sensor (50 A)
• CT6863-05 AC/DC Current Sensor (200 A)
• 9709-05 AC/DC Current Sensor (500 A)
• CT6904 AC/DC Current Sensor (500 A)
• CT6865-05 AC/DC Current Sensor (1000 A)
• CT9557 Sensor Unit (sensor power supply with 4-channel addition function)
• CT9904 Connection Cable (for connecting the CT9557)
• CT9900 Conversion Cable (PL23 receptacle/ME15W plug)
• Special-order: 5 A rated version of the PW9100
• Special-order: 2000 A pass-through sensor
• Special-order: High-accuracy version of the 9709-05
• Special-order: High-accuracy version of the CT6862-05
• Special-order: High-accuracy version of the CT6863-05
• CT7742 AC/DC Auto-Zero Current Sensor (2000 A)
• CT7642 AC/DC Current Sensor (2000 A)
• CT7044 AC Flexible Current Sensor (6000 A, 100 mm)
• CT7045 AC Flexible Current Sensor (6000 A, 180 mm)
• CT7046 AC Flexible Current Sensor (6000 A, 254 mm)
• CT9920 Conversion Cable (PL14 receptacle/ME15W plug)
Voltage measurement options
• L9438-50 Voltage Cord (banana/banana; 1 each red and black; with alligator clips/approx. 3 m)
• L1000 Voltage Cord (banana/banana; 1 each red, yellow, blue, and gray; 4 black; with alligator clips/approx. 3 m)
• L4931 Extension Cable Set (banana/banana; 1 each red and black/ approx. 1.5 m, for extending the
L9438-50 or L1000)
• L1021-01 Patch Cord (branched bananas/banana; 1 red/approx. 0.5 m, for branching the L9438-50 or L1000)
• L1021-02 Patch Cord (branched bananas/banana; 1 black/approx. 0.5 m, for branching the L9438-50 or L1000)
• 9243 Grabber Clip (1 each red and black)
• PW9000 Wiring Adapter (for three-phase 3-wire)
• PW9001 Wiring Adapter (for three-phase 4-wire)
Connection options
• L9217 Connection Cord (isolated BNC/isolated BNC; 1.6 m; for motor analysis input)
See "8.5 Using the Motor Testing" (p. 174)
• Special-order: D/A Output Cable (25-pin D-sub/male BNC; 16-channel conversion/2.5 m)
• 9683 Connection Cable (for synchronization /1.5 m)
See "Connecting Multiple PW3390 (Synchronized Measurements)" (p. 157)
• 9642 LAN Cable (5 m, with straight/cross conversion connector)
• 9637 RS-232C Cable (9pin-9pin/1.8 m, crossing cable)
Other options
• 9728 PC Card 512M (512 MB CF Card + Adapter)
• 9729 PC Card 1G (1 GB CF Card + Adapter)
• 9830 PC Card 2G (2 GB CF Card + Adapter)
• 9794 Carrying Case (PW3390 dedicated hard type)
• Special-order: Rack mounting hardware (EIA/JIS)

Safety Notes
4
This manual contains information and warnings essential for safe operation of the product and for main-
taining it in safe operating condition. Before using the product, be sure to carefully read the following
safety notes.
The following symbols in this manual indicate the relative importance of cautions and warnings.
Safety Notes
This instrument is designed to comply with IEC 61010 Safety Standards, and has
been thoroughly tested for safety prior to shipment. However, mishandling dur-
ing use could result in injury or death, as well as damage to the instrument. How-
ever, using the instrument in a way not described in this manual may negate the
provided safety features.
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.
Safety symbols
Indicates cautions and hazards. When the symbol is printed on the instrument, refer to
a corresponding topic in the Instruction Manual.
Indicates a grounding terminal.
Indicates the ON side of the power switch.
Indicates the OFF side of the power switch.
Indicates that incorrect operation presents a significant hazard that could result in seri-
ous injury or death to the user.
Indicates that incorrect operation presents a significant hazard that could result in seri-
ous injury or death to the user.
Indicates that incorrect operation presents a possibility of injury to the user or damage
to the product.
Advisory items related to performance or correct operation of the product.
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 set out by the EU Directive.

Safety Notes
5
Accuracy
We define measurement tolerances in terms of f.s. (full scale), rdg. (reading) and dgt. (digit) values, with
the following meanings:
Other symbols
Symbols in this manual
Indicates the prohibited action.
(p. ) Indicates the location of reference information.
Indicates quick references for operation and remedies for troubleshooting.
* Indicates that descriptive information is provided below.
[ ] Menus, commands, dialogs, buttons in a dialog, and other names on the screen
and the keys are indicated in brackets.
CURSOR
(Bold character) Bold characters within the text indicate operating key labels.
Windows Unless otherwise specified, “Windows” represents Windows 7, Windows 8, or Win-
dows 10.
Dialog Dialog box represents a Windows dialog box.
Mouse action terminology
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 chosen item in the desired position.
Activate: Click on a window on the screen to activate that window.
f.s. (maximum display value or scale length)
The maximum displayable value or scale length. This is usually the name of the
currently selected range.
rdg. (reading or displayed value)
The value currently being measured and indicated 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-significant digit.

Safety Notes
6
This instrument complies with CAT II (1000 V) and CAT III (600 V) safety requirements.
To ensure safe operation of measurement instruments, IEC 61010 establishes safety standards for vari-
ous electrical environments, categorized as CAT II to CAT IV, and called measurement categories.
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.
Use of a measurement instrument that is not CAT-rated in CAT II to CAT IV measurement applications
could result in a severe accident, and must be carefully avoided.
Measurement categories
CAT II Primary electrical circuits in equipment connected to an AC electrical outlet by a power
cord (portable tools, household appliances, etc.) CAT II covers directly measuring electri-
cal outlet receptacles.
CAT II covers directly measuring electrical outlet receptacles.
CAT III Primary electrical circuits of heavy equipment (fixed installations) 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 pri-
mary overcurrent protection device (distribution panel).

Usage Notes
7
Follow these precautions to ensure safe operation and to obtain the full benefits of the various functions.
Before using the instrument the first time, verify that it operates normally to ensure that the no damage
occurred during storage or shipping. If you find any damage, contact your authorized Hioki distributor or
reseller.
Installing
• The instrument should be operated only with the bottom or rear side downwards.
• Vents (on the right side of the instrument) must not be obstructed.
Usage Notes
Before use
Before using the instrument, make sure that the insulation on the voltage cords
is undamaged and that no bare conductors are improperly exposed. Using the
instrument in such conditions could cause an electric shock, so contact your
authorized Hioki distributor or reseller for replacements.
Instrument installation
Avoid the following locations that could cause an accident or damage to the instrument.
Exposed to direct sunlight
Exposed to high temperature
In the presence of corrosive or
explosive gases
Exposed to liquids
Exposed to high humidity or
condensation
Exposed to strong electromag-
netic fields
Near electromagnetic radiators
Exposed to high levels of par-
ticulate dust
Near induction heating systems
(e.g., high-frequency induction
heating systems and IH cooking
utensils)
Subject to vibration
50 mm or more
50 mm or more

Usage Notes
8
Handling the instrument
To avoid electric shock, do not remove the instrument's case. The internal com-
ponents of the instrument carry high voltages and may become very hot during
operation.
• If the instrument exhibits abnormal operation or display during use, review the infor-
mation in Troubleshooting section "11.2 Trouble Shooting" (p. 219) and Error Indi-
cations section "11.3 Error Indication" (p. 222) before contacting your authorized
Hioki distributor or reseller.
• To avoid damage to the instrument, protect it from physical shock when transporting
and handling. Be especially careful to avoid physical shock from dropping.
• To move the instrument, first disconnect all cables, remove any CF card and USB
memory, and carry it by the handle.
• Do not apply heavy downward pressure with the stand extended. The stand could
be damaged.
See "Using the Handle as a Stand" (p. 15)
• Use a common ground for both the instrument and any devices to be connected.
Using different ground circuits will result in a potential difference between the instru-
ment's ground and the computer's ground. If the communications cable is connected
while such a potential difference exists, it may result in equipment malfunction or
failure.
• Before connecting or disconnecting the communications cable, always turn off the
instrument and any devices to be connected. Failure to do so could result in equip-
ment malfunction or damage.
• After connecting the communications cable, tighten the screws on the connector
securely. Failure to secure the connector could result in equipment malfunction or
damage.
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.

Usage Notes
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Handling the cords and current sensors
Connect the current sensors or voltage cords to the instrument first, and then to
the active lines to be measured. Observe the following to avoid electric shock
and short circuits.
• Do not allow the voltage cord clips to touch two wires at the same time. Never
touch the edge of the metal clips.
• When the current sensor is opened, do not allow the metal part of the clamp to
touch any exposed metal, or to short between two lines, and do not use over
bare conductors.
• To avoid short circuits and potentially life-threatening hazards, never attach the
current sensor to a circuit that operates at more than the maximum rated volt-
age to earth (See your current sensor's instruction manual for its maximum rat-
ings.)
• Current sensor and voltage cables should only be connected to the secondary
side of a breaker, so the breaker can prevent an accident if a short circuit
occurs. Connections should never be made to the primary side of a breaker,
because unrestricted current flow could cause a serious accident if a short cir-
cuit occurs.
• Connect only those voltage cables necessary for measurement.
• To prevent an electric shock accident, confirm 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.
• In order to use the CT6862 AC/DC Current Sensor, the line to be measured
must be temporarily disconnected.
To avoid shock and short circuits, turn off the power to lines to be measured
before making connections to terminals to be measured and turning on the
instrument.
• To avoid electric shock, do not exceed the lower of the ratings shown on the
instrument and test leads.
• To avoid electric shock and short-circuit accidents, use only the specified voltage
cord to connect the instrument input terminals to the circuit to be tested.
• For safety reasons, when taking measurements, only use the optional voltage cord.
Avoid stepping on or pinching cables, which could damage the cable insulation.
• To avoid breaking the cables, do not bend or pull them.
• To avoid damaging the power cord, grasp the plug, not the cord, when unplugging it
from the power outlet.
• Keep the cables well away from heat sources, as bare conductors could be exposed
if the insulation melts.
• Be careful to avoid dropping the current sensors or otherwise subjecting them to
mechanical shock, which could damage the mating surfaces of the core and
adversely affect measurement.
• Be careful when handling the cords, since the conductor being measured may
become very hot.
• When disconnecting the connector, be sure to release the lock before pulling off the
connector. Forcibly pulling the connector without releasing the lock, or pulling on the
cable, can damage the connector.
• To prevent damage to the instrument and current sensors, never connect or discon-
nect a sensor while the power is on, or while the sensor is clamped around a con-
ductor.

Usage Notes
10
Before connecting measurement cables
• Do not use the instrument with circuits that exceed its ratings or specifica-
tions. Doing so may damage the instrument or cause it to become hot, result-
ing in bodily injury.
• Never exceed a current sensor’s input current rating. Doing so could destroy
the instrument and cause personal injury.
• Before turning the instrument on, make sure the source voltage matches that
indicated on the instrument's power connector. Connection to an improper
supply voltage may damage the product and present an electrical hazard.
• To avoid electrical accidents and to maintain the safety specifications of this
instrument, connect the power cord provided only to an outlet.
For safety reasons, disconnect the power cord when the instrument is not used.
Before connecting to the lines to be measured
To avoid electrical hazards and damage to the instrument, do not apply voltage
exceeding the rated maximum to the external input terminals.
• To avoid electrical accidents, confirm that all connections are secure. The
increased resistance of loose connections can lead to overheating and fire.
• Ensure that the input does not exceed the maximum input voltage or current to
avoid instrument damage, short-circuiting and electric shock resulting from
heat building.
• When the power is turned off, do not apply voltage or current to the voltage input termi-
nals, current input terminals, or current sensors. Doing so may damage the instrument.
• Note that the instrument may be damaged if the applied voltage or current exceeds
the measurement range.
While measuring
If an abnormality such as smoke, strange sound or offensive smell occurs, stop
measuring immediately, disconnect from the measurement lines, turn off the
instrument, unplug the power cord from the outlet, and undo any changes to the
wiring. Contact your authorized Hioki distributor or reseller as soon as possible.
Continuing to use the instrument may result in fire or electric shock.

1.1 Product Overview
11
1
Chapter 1 Overview
• High precision and stability ensure highly reproducible power measurements
• Electrical phase angle measurements necessary for motor analysis
• Measure motor efficiency by connecting with a high precision torque meter or encoder.
• Simultaneously measure AC and DC power.
• Separately measure power input, sold, consumed, and regenerated using the DC mode and the cur-
rent and integrated power (electrical energy) in RMS mode.
• Save long-term measurement data to high-capacity storage media.
• Easily measure inverter secondary power on site.
• Simultaneously measure primary and secondary inverter power.
• Measure inverter noise.
Overview Chapter 1
1.1 Product Overview
The Hioki PW3390 Power Analyzer is a high-precision, broad-range instrument for measuring electrical
power from DC to inverter frequencies. Four input channels are provided to support single- and three-
phase inverter motor system measurements.
For developing and evaluating high efficiency inverter motors
For developing and evaluating alternative energy sources such as solar,
wind power, and fuel cells
For inverter motor maintenance

1.2 Features
12
• Four isolated voltage and current input channels are provided to support simultaneous multi-
system measurements such as inverter primary and secondary power.
• Measure power system wiring configurations from single-phase to three-phase, four-wire.
• Broad frequency range (0.5 Hz to 5 kHz fundamental) supports DC to inverter frequencies.
• Basic accuracy is ±0.04% rdg. ±0.05% f.s. at DC and from 0.5 Hz to 200 kHz.
• Precise measurements over a broad range of inverter carrier frequencies: ±0.2% rdg. ±0.1% f.s.
at 10 kHz, and ±1.5% rdg. ±0.5% f.s. at 100 kHz.
• This function utilizes virtual oversampling, a new technology, to correct current sensor phase
errors at a resolution of 0.01, allowing accurate measurement of the high-frequency, low-
power-factor power components contained in inverter output switching frequencies.
• While maintaining high accuracy, power measurements and harmonic analysis updates every
50 ms.
• During low-frequency measurements, data is automatically updated in sync with frequency, so
no refresh (data update rate) switching is needed when changing from low to high rotation
rates.
• Simultaneously measure RMS, mean, AC and DC components, and fundamental waveforms.
• Perform harmonic analysis up to the 100th order and inverter noise (FFT) analysis up to 200
kHz.
• Display high-speed waveforms sampled at up to 500 kS/s.
• Perform multifaceted analysis with X-Y graph functions.
• Simultaneously analyzes harmonics, noise while performing integration, displaying waveforms
and trend graph.
• Select from various AC and AC/DC clamp-on current probes with ranges from 20 A to 1000 A.
• Measure high currents with high precision using clamp-on current sensor probes.
• Clamp-on current probes eliminate the need for problematic direct contact with wiring.
• In-phase effects on inverter measurements are greatly reduced by isolating current sensors
from the measurement objects.
1.2 Features
Supports multiple power system configurations
High accuracy over a broad range
Current sensor phase correction function (standard feature)
Provides both fast data processing and high accuracy
Extensive data analysis functions are included as standard features
Simultaneous analysis of all parameters
Supports measurements with both easy-to-use clamp probes and high-
precision penetrating probes