YOKOGAWA CW500 User manual

User’s
Manual CW500
Power Quality Analyzer
IM CW500-01EN
2nd Edition

i
IM CW500-01EN
Thank you for purchasing the CW500 Power Quality Analyzer. This user’s
manual explains the features and operating procedures of the CW500.
To ensure correct use, please read this manual thoroughly before
beginning operation. Keep this manual in a safe place for quick reference
in the event that a question arises.
The following five manuals, including this one, are provided as manuals
for the CW500.
Please read all manuals.
Manual Title Manual No. Description
CW500
Power Quality Analyzer
User’s Manual
IM CW500-01EN This guide. This manual
explains the CW500’s standard
features and how to use these
features.
Application Software
User’s Manual
IM CW500-61EN The supplied CD contains the
PDF file of this manual. This
manual explains how to use
the application software.
CW500
Power Quality Analyzer
Getting Started Guide
IM CW500-02EN The guide explains the
handling precautions and basic
operations of the CW500 and
provides a list of specifications.
Application Software
Installation Manual
IM CW500-62JA This manual describes how to
install the application software.
CW500
Power Quality Analyzer
User’s Manual
IM CW500-92Z1 Chinese document
The “-EN” in the manual number is the language code.
Contact information of Yokogawa offices worldwide is provided on the
following sheet.
Manual No. Description
PIM113-01Z2 List of worldwide contacts
2nd Edition : October 2017 (YMI)
All Rights Reserved, Copyright © 2015 Yokogawa Test & Measurement Corporation

ii IM CW500-01EN
Notes
• The contents of this manual are subject to change without prior notice
as a result of continuing improvements to the software’s performance
and functionality. The figures given in this manual may differ from those
that actually appear on your screen.
• Every effort has been made in the preparation of this manual to ensure
the accuracy of its contents. However, should you have any questions
or find any errors, please contact your nearest YOKOGAWA dealer.
• Copying or reproducing all or any part of the contents of this manual
without the permission of YOKOGAWA is strictly prohibited.
•
Trademarks
• Microsoft, Windows, Windows 7, Windows 8, and Windows 10 are
either registered trademarks or trademarks of Microsoft Corporation in
the United States and/or other countries.
• Adobe, Acrobat, and PostScript are either registered trademarks or
trademarks of Adobe Systems Incorporated.
• In this manual, the TM and ® symbols do not accompany their
respective registered trademark or trademark names.
• Other company and product names are trademarks or registered
trademarks of their respective companies.
Revisions
September 2015 1st Edition
October 2017 2nd Edition

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IM CW500-01EN
Contents
Chapter 1 Product Outline
1.1 Feature Outline.....................................................1-1
1.2 Features................................................................1-3
1.3 System Configuration Diagram.............................1-5
1.4 Measurement Procedure ......................................1-6
Chapter 2 Component Names
2.1 Display (LCD) and Control Keys...........................2-1
2.2 Connectors ...........................................................2-2
2.3 Side Panel ............................................................2-3
2.4 Voltage Probe and Current Clamp-on Probe ........2-4
Chapter 3 Basic Operation
3.1 Description of Control Keys ..................................3-1
3.2 Marks Displayed in the Top Area of the LCD........3-3
3.3 Display Symbols ...................................................3-4
3.4 BacklightandContrastAdjustment.......................3-5
3.5 Screens and Screen Configuration.......................3-6
Chapter 4 Recording
4.1 Starting and Stopping Recording..........................4-1
4.2 Starting to Record with “Quick start guide”...........4-3
Chapter 5 Setup
5.1 Settings.................................................................5-1
5.2 Basic Setup...........................................................5-2
5.3 Measurement Setup ...........................................5-12
5.4 Recording Setup.................................................5-25
5.5 Other Settings.....................................................5-31
5.6 Saved Data.........................................................5-36

iv IM CW500-01EN
Chapter 6 Display Items of Each Screen
6.1 Instantaneous Value (W) ......................................6-1
6.2 Integrated Value (Wh)...........................................6-9
6.3 Demand .............................................................. 6-11
6.4 Vector..................................................................6-14
6.5 Waveform............................................................6-17
6.6 Harmonics...........................................................6-19
6.7 Power Quality .....................................................6-25
Chapter 7 Other Features
7.1 Other Features......................................................7-1
Chapter 8 Connecting to Peripheral Devices
8.1 TransferringDatatoaPC.....................................8-1
8.2 SignalControlwithExternalDevices....................8-2
8.3 SupplyingPowerthroughMeasurementLines.....8-5
Chapter 9 PC Software for Configuration and Analysis
9.1 PC Software for Configuration and Analysis.........9-1
Chapter 10 Troubleshooting
10.1 Troubleshooting ..................................................10-1
10.2 Error Messages and Corrective Actions .............10-3
Appendix
When Using 96030, 96033, or 96036 ......................... App-1
Index
Contents

1-1
IM CW500-01EN
1.1 Feature Outline
Starting and Ending Recording
Start recording normally or start by
following the Quick Start Navigation,
which guides you through the
necessary setup for recording.
See “Starting and Stopping
Recording.”
Displaying Instantaneous, Integrated,
and Demand
Displays instantaneous, average,
maximum and minimum values for
current, voltage, active power, apparent
power, and reactive power. Switch the
screen to display integrated values. Set
a demand target value and display the
demand values from start to finish.
See “Displaying Instantaneous,
Integrated, and Demand.”
Displaying Vectors and
Checking the Wiring
Displays a vector diagram of
voltage and current for the
measurement channel and
checks the wiring.
See “Vector.”
Chapter 1 Product Outline

1-2 IM CW500-01EN
Displaying Waveforms
Displays waveforms of voltage
and current for the
measurement channel. See
“Waveforms.”
Harmonic Analysis
Displays harmonic components
superimposed on the voltage
and current for the measurement
channel.
See “Harmonic Analysis.”
Displaying Power Supply
Quality Events
Displays the swell, dip,
interruption, transient, inrush
current, and flicker of the
measured voltage.
See “Power Supply Quality.”
Setup (SET UP)
Configures the CW500 and
measurement.
See “Setup.”
1.1 Feature Outline

1-3
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1.2 Features
This product is a clamp-type power quality analyzer that supports a
variety of wiring systems. It simultaneously performs simulations of
instantaneous values, integrated values, demand values for power
management, harmonic analysis, power quality events, and phase lead
capacitor values for improving the power factor. Voltage and current can
be displayed as waveforms and vectors.
Measured data can be saved to files in SD memory cards or internal memory,
and the files can be transferred to a PC through USB communication.
Safety Design
This product complies with safety standard IEC 61010-1 CAT. IV 300V/
CAT. III 600V/CAT. II 1000V.
Power Quality Measurement
This product supports international power quality measurement standard
IEC61000-4-30 Class S. It can perform highly accurate frequency
and rms voltage measurements and harmonic analysis as well as
simultaneously measure without gaps swell, dip, interruption, transient,
inrush current, and flicker that are necessary for capturing and monitoring
power abnormalities.
Power Measurement
This product can measure active, reactive, and apparent powers as well
as watt-hour, power factor, rms current, phase angle, and neutral line
current.
Wiring Systems
This product supports single-phase two-wire (four systems), single-phase
three-wire (two systems), three-phase three-wire (two systems), and
three-phase four-wire measurement lines.
Demand Measurement
You can monitor in a simplified form the usage condition so that the
specified target value (contract demand) is not exceeded.

1-4 IM CW500-01EN
Waveform and Vector Displays
Voltage and current can be displayed as waveforms and vectors.
Saving Measured Data
This product is equipped with a logging function whose recording interval
can be specified. Measured data can be saved manually or by specifying
the date and time. Further, the print screen function can be used to save
image data to SD memory cards.
Dual Power System
This product can be driven by AC power or batteries. For batteries, AA
alkaline batteries (LR6) or off-the-shelf rechargeable AA nickel-metal
hydride batteries (Ni-MH) can be used. For rechargeable AA nickel-metal
hydride (Ni-MH) batteries, use the battery manufacturer’s charger to
charge them. You cannot charge them on the CW500. If a power failure
occurs while the CW500 is running off of AC power, the power supply is
automatically switched to battery power.
Display Screen
This product has a color TFT LCD.
Easy Wiring and Compact, Lightweight Design
Wiring is easy as this product is a clamp type. Its compact, lightweight
design makes it convenient to install and carry around.
Application
Files saved in SD memory cards and internal memory can be downloaded
to a PC through USB. Downloaded files can be analyzed easily using the
accompanying PC software. It is also possible to configure the CW500
from a PC.
Auxiliary I/O Function
The 2-channel analog input (DC voltage) can be used to simultaneously
measure analog signals from thermometers, lux meters, and the like.
If a power quality event occurs, a contact signal can be sent to an alarm
through the 1-channel digital output.
1.2 Features

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IM CW500-01EN
1.3 System Configuration Diagram
(Option)
Current input
AC voltage input
Power cord
USB
SD memory
card
PC
AA alkaline
batteries (LR6)
AA Ni-MH batteries
Digital output (1 ch) to
recorder or alarm
Analog input (2 ch) from
thermometer or illuminometer

1-6 IM CW500-01EN
1.4 Measurement Procedure
Measurement preparation
Getting Started Guide, “Making Preparations for Measurements” Page 5
Connecting cords and sensors to the CW500
Getting Started Guide, “Connecting a Voltage Probe and Clamp-on Probe”
Page 15
Turning the power on
Getting Started Guide, “Power Supply” Page 7
Setting common measurement items
5.2, “Basic Settings” Page 5-3
Loading CW500 settings
5.6, “Save Data” Page 5-36
Wiring measurement lines
Getting Started Guide, “Safety Precautions” Page vii
Checking the wiring
6.4, “Vectors” Page 6-14
Configuring measurement settings and save method
5.3, “Measurement Settings” Page 5-12 and 5.4, “Record Settings” Page
5-25.
Checking measured values
6.1, “Instantaneous Value W” Page 6-1 and 6.4, “Vectors” Page 6-14
Starting and stopping recording
4.6, “Starting and Stopping Recording” Page 4-12
Checking Measured Data
Chapter 6, “Display Items of Each Screen” Page 6-1
Removing cords and sensors from the measurement line and turning the
power off
Analyzing recorded data on a PC
8.1, “Transferring Data to a PC” Page 8-1
Chapter 9, “PC Software for Configuration and Analysis” Page 9-1

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IM CW500-01EN
2.1 Display (LCD) and Control Keys
Display (LCD)
Control keys
Chapter 2 Component Names

2-2 IM CW500-01EN
2.2 Connectors
AC voltage input terminals
(VN, V1, V2, V3)
Current input terminals
(A1, A2, A3, A4)
Terminal covers
Power inlet
Wiring System AC Voltage
Input Terminal
Current Input
Terminal*
Single-phase two-wire (1 system) 1P2W×1 VN, V1 A1
Single-phase two-wire (2 system) 1P2W×2 VN, V1 A1, A2
Single-phase two-wire (3 system) 1P2W×3 VN, V1 A1, A2, A3
Single-phase two-wire (4 system) 1P2W×4 VN, V1 A1, A2, A3, A4
Single-phase three-wire (1 system) 1P3W×1 VN, V1, V2 A1, A2
Single-phase three-wire (2 system) 1P3W×2 VN, V1, V2 A1, A2, A3, A4
Three-phase three-wire (1 system) 3P3W×1 VN, V1, V2 A1, A2
Three-phase three-wire (2 system) 3P3W×2 VN, V1, V2 A1, A2, A3, A4
Three-phase three-wire 3A 3P3W3A V1, V2, V3 A1, A2, A3
Three-phase four-wire 3P4W×1 VN, V1, V2, V3 A1, A2, A3
* Current terminals that are not used in wiring can measure only rms values
and harmonics.

2-3
IM CW500-01EN
2.3 Side Panel
With the Connector Cover Closed
SD memory card area USB area
Analog input/digital output area
With the Connector Cover Open
SD memory card slot USB port
Analog input/digital output terminals

2-4 IM CW500-01EN
2.4 Voltage Probe and Current Clamp-on
Probe
Alligator Clip (the end of the voltage probe)
Barrier
Current Clamp-on Probe
Barrier
Barrier: A mark for securing the minimum required creep and spatial
distance to prevent electric shock during operation.
When taking a measurement, be careful that your finger or the like does
not cross over the barrier.

3-1
IM CW500-01EN
3.1 Description of Control Keys
LCD key
Turns on/off the backlight and
adjusts the contrast and
brightness.
ENTER key
Confirms the operation or
setting.
Arrow keys
Selects items and changes
displays.
Function keys
Selects or executes the menu
items at the bottom of the
screen.
ESC/RESET key
Resets to the original setting.
Power key
Turns the power
on and off.
Display
SETUP Key
Changes basic, measurement,
recording, saved data, and
other settings.
START/STOP key
Starts or stops recording.
Display SW key
See page 3-2.
Status LED
Shows the recording status.
Green solid: Recording
Green blinking: Standby
Red blinking: Backlight off
PRINT SCREEN key
Saves the screen as a BMP file.
DATA HOLD/
KEY LOCK key
DATA HOLD
Holds the display. But,
measurement continues.
KEY LOCK
Hold down for 2 s to lock all
keys. Hold down for 2 s again
to release.
Chapter 3 Basic Operation

3-2 IM CW500-01EN
Display Switch Key
Waveform key
Displays voltage and current
waveforms
Harmonic analysis key
Displays harmonic voltage,
harmonic current, and
harmonic power
QUALITY key
Displays the occurrence of
swell, dip, interruption,
transient, inrush current, and
flicker
W/Wh key
Displays instantaneous
values, integrated
values, and “demand”
Vector key
Displays phases

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IM CW500-01EN
3.2 Marks Displayed in the Top Area of
the LCD
Mark Status When Displayed
Running on batteries. Shows the battery level using four
levels.
Running on AC power.
Screen updating is held.
Keys are locked.
The buzzer is turned off.
SD memory card can be used.
Recording to SD memory card.
Not enough space in SD memory card to record.
Unable to access SD memory card.
Possible to record to internal memory. This appears when
recording is started without an SD memory card inserted.
Recording to internal memory.
Not enough space in internal memory to record.
Waiting to record.
Recording measurement values.
Recording medium is full.
USB can be used.
Bluetooth®canbeused.

3-4 IM CW500-01EN
3.3 Display Symbols
Display Symbol
V1 Phase voltage VL1 Line voltage A Current
P
Active
power
+
Consumption
Q
Reactive
power
+ Lag
S Apparent power
–
Regeneration – Lead
PF
power
factor
+ Lag
f Frequency
– Lead
DC1
Analog input
channel 1 voltage
DC2
Analog input
channel 2 voltage
An2 Neutral line current PA3
Phase
angle
+ Lag
C3
Phase advance
capacitor
capacitance
– Lead
WP+
Active energy
(consumption)
WS+
Volt-ampere hours
(consumption)
WQi+
Reactive energy
(lag)
WP-
Active energy
(regeneration)
WS-
Volt-ampere hours
(regeneration)
WQc+
Reactive energy
(lead)
THD Voltage/current distortion
Pst
(1min)
1-minute voltage flicker Pst
Short term voltage
flicker
Plt
Long term voltage
flicker
1 The V and VL displays can be customized when 3P4W is selected.
2 An appears only when 3P4W is selected.
3 PA and C can be displayed by customization.

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3.4 Backlight and Contrast Adjustment
Holding down the LCD key for 2 seconds when the backlight is on
displaysslidebarsfor adjustingthebacklightbrightness anddisplay
contrast.Toadjustthebrightnessorcontrast,usethearrowkeystomove
the slide bars.After adjusting, press ENTER to confirm. To cancel the
adjustment,pressESCorLCDagain.
Backlight brightness can be changed
to any of the 11 available levels.
Brightness adjustment
Contrast can be changed
to any of the 11 available levels.
Contrast adjustment