Omron ZN-CTX21 Series User manual

EQUO Series
Portable Power Monitor
ZN-CTX21
User’s Manual
ASC-DE-111020-8C

i
Introduction
Thank you for purchasing an EQUO Series CTX21 Portable Power Monitor.
This manual describes the information on the functions, performance and usage required to use the Portable
Power Monitor.
Please observe the following when using the Portable Power Monitor:
・This product must be handled by specialists with electrical knowledge.
・Read this User's Manual thoroughly to be familiar with the product beforehand for correct operation.
・Keep this manual properly for future reference.
Trademarks
・Microsoft and Windows are registered trademarks or trademarks of Microsoft Corporation in the United
States and other countries.
・Other company names and product names are registered trademarks or trademarks of the respective
company.
Manual Type and Usage
The major contents of the manuals are shown below. Select and read the manual according to your need.
Included Manuals (Print)
Instruction Sheet
Describes the information to ensure the safe and proper
use of the product, and information
regarding ratings, performance and installation.
Startup Guide
Describes the basic procedures including the package content check, assembly, setting
operation, recording operation and data display.
Manuals available from Website (PDF data)
User's Manual (This document)
Describes information to ensure the safe and proper use of the product
Describes package content items and detailed procedures for assembly, setting operation,
recording operation and data display
Product specifications
Other necessary information required to use the Portable Power Monitor ZN-CTX21
Station Utility User's Manual
Describes the information of accessory, functions and operation of the PC software Station
Utility.

ii
Read and Understand this Manual
Please read and understand this manual before using the products. Please consult your
OMRON representative if you have any questions or comments.
Warranty and Limitations of Liability
<WARRANTY>
OMRON's exclusive warranty is that the products are free from defects in materials and
workmanship for a period of one year (or other period if specified) from date of sale by
OMRON.
OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED,
REGARDING NON-INFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR PARTICULAR
PURPOSE OF THE PRODUCTS. ANY BUYER OR USER ACKNOWLEDGES THAT THE
BUYER OR USER ALONE HAS DETERMINED THAT THE PRODUCTS WILL SUITABLY
MEET THE REQUIREMENTS OF THEIR INTENDED USE. OMRON DISCLAIMS ALL
OTHER WARRANTIES, EXPRESSED OR IMPLIED.
<LIMITATIONS OF LIABILITY>
OMRON SHALL NOT BE RESPONSIBLE FOR SPECIAL, INDIRECT, OR CONSEQUENTIAL
DAMAGES, LOSS OF PROFITS OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH
THE PRODUCTS, WHETHER SUCH CLAIM IS BASED ON CONTRACT, WARRANTY,
NEGLIGENCE, OR STRICT LIABILITY.
In no event shall the responsibility of OMRON for any act exceed the individual price of the
product on which liability is asserted.
IN NO EVENT SHALL OMRON BE RESPONSIBLE FOR WARRANTY, REPAIR, OR OTHER
CLAIMS REGARDING THE PRODUCTS UNLESS OMRON'S ANALYSIS CONFIRMS THAT
THE PRODUCTS WERE PROPERLY HANDLED, STORED, INSTALLED, AND MAINTAINED
AND NOT SUBJECT TO CONTAMI
NATION, ABUSE, MISUSE, OR INAPPROPRIATE
MODIFICATION OR REPAIR.

iii
Application Considerations
<SUITABILITY FOR USE>
OMRON shall not be responsible for conformity with any standards, codes, or regulations that
apply to the combination of the products in the customer's application or use of the products.
At the customer's request, OMRON will provide applicable third party certification documents
identifying ratings and limitations of use that apply to the products. This information by itself
is not sufficient for a complete determination of the suitability of the products in combination
with the end product, machine, system, or other application or use.
The following are some examples of applications for which particular attention must be given.
This is
not intended to be an exhaustive list of all possible uses of the products, nor is it
intended to imply that the uses listed may be suitable for the products:
Outdoor use, uses involving potential chemical contamination or electrical interference, or
conditions or uses not described in this manual.
Nuclear energy control systems, combustion systems, railroad systems, aviation systems,
medical equipment, amusement machines, vehicles, safety equipment, and installations
subject to separate industry or government regulations.
Systems, machines, and equipment that could present a risk to life or property.
Please know and observe all prohibitions of use applicable to the products.
NEVER USE THE PRODUCTS FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE
OR PROP
ERTY WITHOUT ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN
DESIGNED TO ADDRESS THE RISKS, AND THAT THE OMRON PRODUCTS ARE
PROPERLY RATED AND INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL
EQUIPMENT OR SYSTEM.
<PROGRAMMABLE PRODUCTS>
OMRON shall not be responsible for the user's programming of a programmable product, or
any consequence thereof.
Disclaimers
<CHANGES IN SPECIFICATIONS>
Product specifications and accessories may be changed at any time based on improvements
and other reasons.
It is our practice to change model numbers when published ratings or features are changed, or
when significant construction changes are made. However, some specifications of the
products may be changed without any notice. When in doubt, special model numbers may
be assigned to fix or establish key specifications for your application on your request. Please
consult with your OMRON representative at any time to confirm actual specifications of
purchased products.
<DIMENSIONS AND WEIGHTS>
Dimensions and weights are nominal and are not to be used for manufacturing purposes, even
when tolerances are shown.
<ERRORS AND OMISSIONS>
The information in this manual has been carefully checked and is believed to be accurate;
however, no responsibility is assumed for clerical, typographical, or proofreading errors, or
omissions.
<COPYRIGHT AND COPY PERMISSION>
This manual shall not be copied for sales or promotions without permission.
This manual is protected by copyright and is intended solely for use in conjunction with the
pr
oduct. Please notify us before copying or reproducing this manual in any manner, for any
other purpose. If copying or transmitting this document to another, please copy or transmit it in
its entirety.

iv
Precautions on Safety
●Meanings of Signal Words
For the safe operation of ZN-CTX21, this operation manual indicates the precautions by using the following
marks and symbols. The precautions given here contain important information related to safety, and
therefore must be observed.
The marks and symbols for the safety precautions are as follows:
WARNING
Indicates a potentially hazardous situation which, if not avoided, will result
in minor or moderate injury, or may result in serious injury or death.
Additionally there may be significant property damage.
CAUTION
Indicates a potentially hazardous situation which, if not avoided, may result
in minor or moderate injury or in property damage.
●Meaning of Precaution Symbols
●Mandatory Requirement
Indicates a general mandatory requirement.
●Prohibition
Indicates general prohibition.
●Electric Shock Warning
Warns against an electric shock under specific conditions.
●Explosion Warning
Warns against an explosion under specific conditions.
●
Disassembly Prohibition
Indicates the possibility of accidents such as an electric shock caused by unit
disassembly.
●Warning Indications
WARNING
The mounting magnets provided with the product have strong magnetism. If
the product is mounted using these magnets, anyone wearing a heart
pacemaker must not operate the product; or the product must not be in
proximity of such a person.
This product contains lithium batteries. Serious injury may occur due to fire
or explosion. Do not attempt to disassemble the product, deform it by
applying pressure, heat it in a high temperature (100℃or more), or burn it
for disposal.
The sensor head connector and the CT input circuit are not insulated. Do
not connect the dedicated CT terminal and connection cable directly to AC
or DC power supply. Extensive property damage, minor or moderate injury
may be caused by the electrical flow through the product, if they are
connected directly to AC or DC power supply.

v
CAUTION
A minor or moderate injury or property damage may occur due to explosion.
Do not use the product in an environment containing an inflammable or
explosive gas.
An electric shock may occur. Do not replace the batteries when the unit is
clamped to a conductor for measurement.
An electric shock may occur. Do not remove or insert a sensor head from/to
the connector with the unit clamped to a conductor for measurement.
An electric shock may occur. Make sure that the power of a conductor to be
measured is turned OFF before clamping or detaching the unit to/from the
conductor. Or wear insulating gloves if the power is not turned OFF.
An electric shock may occur. Do not touch the terminal sections of the unit
and the conductor to be measured when the unit is
clamped to the
conductor.
An electric shock or minor injury as well as fire or unit malfunction may
occur. Do not attempt to disassemble, repair or modify the product.

vi
Precautions for Safe Use
Observe the following precautions to ensure safe operation:
・Do not install the product in the places subject to exposure to water, oil, or chemical splashes.
・Only the provided AC adapter (not other) must be used when using AC power supply.
・If a voltage that exceeds the rated voltage is applied to the AC adapter, smoke may occur. Do not
connect a power supply that exceeds the rated voltage. In a situation where a voltage higher than the
rating is applied, use protective equipment so that the power supply voltage does not exceed the rated
voltage.
・Dispose of the product as industrial waste.
・Use batteries correctly, only after reading and being familiarized with the precautions provided by the
manufacturer.
・Do not apply strong shock to the product, or it may cause damage or malfunction. It is recommended to
screw the product to mount it on the wall. Stop using the product when strong shock is applied.
・When inserting or removing an SD card, the AC adapter, alarm output cable, or sensor connector,
securely hold the product to prevent it from dropping and being damaged.
・Do not bring the product close to magnetic products (e.g. magnetic cards), sensitive electronics
equipment (e.g. computers or clocks), when the product is attached with the mounting magnets.
・Small pieces may be chipped off the mounting magnets when they are attracted to the surface. Make
sure the pieces do not enter the eyes. Consult a medical doctor if this happens.
・When using the mounting magnets to install the product, take caution not to allow a finger to be caught
between the product(s) and the magnetic surface.
・Do not install the product at a high place when using the mounting magnets.
・Apply an appropriate load to the alarm output terminals to prevent possible smoking.
・If liquid crystal leaks due to a damage to the LCD panel, take caution not to allow it to contact your skin,
to be inhaled or swallowed. If it has contacted your skin or entered your mouth, seek medical attention.
・Do not touch the Portable Power Monitor terminals as well as the sensor head connector and the
dedicated CT terminal when the unit is clamped to a conductor for measurement.
・The product cannot be used for measurement of the secondary circuit of an inverter.
・Take anti-static electricity measures (e.g. touching grounded metal object) when handling the product.
・Only the dedicated CT specified by OMRON must be used.
Dedicated CT: ZN-CT-A

vii
Precautions for Correct Use
1. Avoid installing the product in the following places:
・Places exceeding the rated ambient temperature
・Places exposed to extreme temperature changes (where condensation occurs)
・Places subject to relative humidity exceeding the rated humidity range
・Places subject to corrosive or flammable gases
・Places subject to mist, droplets, coarse particles, fiber, salt, metal dust, or large amount of particles
・Places subject to direct shock or vibration
・Places subject to direct sunlight
・Places subject to exposure to water, oil, or chemical splashes
・Places subject to strong magnetic field or electric field
・Outdoors
2. Wiring
・Wire the product cable separately from high-voltage or power lines. Placing them in the same wiring or
the same duct may cause induction, resulting in the product malfunction or damage.
・Make sure that the I/O terminals are inserted or removed with the power turned OFF. Doing this with the
power ON may result in a malfunction.
・When using the provided DC cable, connect a wire with white line to the power supply (24 VDC±3%),
and connect a wire without the line to 0 V.
・Mounting a ferrite core can reduce noise affecting to or affected by other devices when supplying power
with the DC cable. When using the provided DC cable, wind the provided ferrite core as shown below.
3. Battery use
・Do not mix new and old batteries, or ones of different types or manufacturers. Doing so may result in the
product malfunction.
・Do not install batteries in wrong polarities.
・Always attach the battery cover during use. OMRON cannot be responsible for the product performance,
if the batteries accidentally drop off the product due to the unattached battery cover.
Single winding
Power supply
Device unit side
Approx. 100 mm

viii
・Remove the batteries when they are not used for a long time.
・Used batteries remaining installed for a long time may leak and corrode in the product.
・Do not disassemble or throw the battery into the fire.
・When the battery level is low, the product may repeatedly restart. If this happens, replace the batteries
with new ones.
・Use the AC adapter when operating the product through a network, since network connection rapidly
consumes batteries.
4. Battery disposal
・Battery disposal must follow the guidelines provided by local governments. Dispose of batteries in
compliance with the relevant local regulations.
5. Mounting screw holes
・The screw holes provided on the product are M3 and 4 mm deep. Do not screw deeper than 4 mm,
which may damage the product.
6. Measurement
・Provide a distance of 20mm or more between the dedicated CT and the product when the mounting
magnets are used. Otherwise, measurement may be affected by the magnetism and therefore, may not
be correct.
・Correct settings must be made specifically according to the object to be measured.
・This product is not categorized as "a specified measuring instrument" officially approved by an
organization specified in relevant measurement acts. Therefore, the measured data provided by this
product cannot be used for official energy certificates.

ix
・
How to Read This Manual
■Symbols Used in this Manual
Menu items that are displayed on the screen, windows, dialog boxes and other GUI elements displayed on
the PC are indicated by brackets "[ ]".
■Marks Used in this Manual
Important: Indicates essential information on the product operation and functions which requires special
attention or caution.
Note: Shows operational tips or related useful information.

x
Table of Contents
Introduction................................................................................................................................................. i
Table of Contents....................................................................................................................................... x
1. Product Overview ............................................................................................................................ 1-1
1.1 Features and Functions............................................................................................................... 1-1
(1) Portable Power Monitor for Easy Operation at Manufacturing Sites ...................................... 1-1
(2) Network Connection ............................................................................................................. 1-1
(3) Recording to an SD Memory Card........................................................................................ 1-1
(4) Graph Display and Data Processing Software ...................................................................... 1-1
(5) Alarm Output........................................................................................................................ 1-2
(6) Backup Batteries.................................................................................................................. 1-2
(7) Auto-range Switch................................................................................................................ 1-2
(8) High-speed Logging............................................................................................................. 1-2
1.2 Configuration .............................................................................................................................. 1-3
1.2.1 Standalone........................................................................................................................... 1-3
1.2.2 Network Connection............................................................................................................. 1-3
(1) Remote Setting and Operation from PC ............................................................................... 1-3
(2) Measured Data Acquisition to PC ......................................................................................... 1-3
1.3 Easy Power Measurement .......................................................................................................... 1-4
1.4 Setup and Operation Procedure .................................................................................................. 1-5
1.4.1 Standalone Operation........................................................................................................... 1-5
1.4.2 Operation via Network.......................................................................................................... 1-6
2. Part Name and Function.................................................................................................................. 2-1
2.1 Display Unit................................................................................................................................. 2-1
2.2 Control Unit................................................................................................................................. 2-3
2.2.1 Control Key .......................................................................................................................... 2-3
2.2.2 Reset Switch........................................................................................................................ 2-3
2.2.3 Inserting/Removing SD Card................................................................................................ 2-3
(1) Inserting SD Card ................................................................................................................ 2-4
(2) Removing SD Card .............................................................................................................. 2-4
2.3 Input/Output Specifications.......................................................................................................... 2-5
2.3.1 Alarm Output........................................................................................................................ 2-5
(1) Alarm Output Terminals........................................................................................................ 2-5
(2) Output Specifications ........................................................................................................... 2-5
3. Check and Preparation .................................................................................................................... 3-1
3.1 Checking the Package Contents.................................................................................................. 3-1
3.2 Preparing the Required Items...................................................................................................... 3-1
(1) Common .............................................................................................................................. 3-1
(2) Network Connection ............................................................................................................. 3-1
3.3 Configuring the Unit .................................................................................................................... 3-2
3.3.1 Connecting Dedicated CT .................................................................................................... 3-2
3.3.2 Using Alarm Function ........................................................................................................... 3-2
3.3.3 Preparing Power Supply....................................................................................................... 3-3
(1) Connecting to External Power Supply................................................................................. 3-3
(2) Using Batteries..................................................................................................................... 3-4
3.3.4 Checking Operation ............................................................................................................. 3-5
3.4 Station Utility PC Software Overview and Preparation.................................................................. 3-6

xi
3.4.1 Overview.............................................................................................................................. 3-6
(1) Setting Tool .......................................................................................................................... 3-6
(2) Logging Tool ........................................................................................................................ 3-6
(3) Momentary Value Display (SD Viewer ES)............................................................................ 3-6
(4) Integration and Summation Tool (Energy Viewer) ................................................................. 3-6
3.4.2 Installation............................................................................................................................ 3-6
3.5 Setting the Measurement Conditions........................................................................................... 3-7
(1) Switching to "FUN" Mode..................................................................................................... 3-7
(2) Setting the Number of Channels to Use (USECH) (Example: 2 Channels) ............................ 3-7
(3) Setting Measurement Target Circuit (TYPE) and Dedicated CT Type (CT) ............................ 3-8
(4) Setting Voltage of Measurement Target (VOLT) (Example: 100.0V) ...................................... 3-8
(5) Setting Power Factor (PF) and Frequency (FREQ)............................................................... 3-8
3.6 Connecting to Network ................................................................................................................ 3-9
3.6.1 Preparation .......................................................................................................................... 3-9
3.6.2 Setting Portable Power Monitor IP Address ........................................................................ 3-10
(1) Switching to "FUN" Mode ................................................................................................... 3-10
(2) Setting ETC and IP to “DISP” ..............................................................................................3-11
(3) Changing IP Address (from factory default: 192.168.0.20 to 192.168.0.21) ......................... 3-12
3.6.3 Setting the PC IP Address .................................................................................................. 3-13
(1) Windows XP ...................................................................................................................... 3-13
(2) Windows Vista ................................................................................................................... 3-16
(3) Windows 7 ......................................................................................................................... 3-19
3.6.4 Connecting LAN Cable....................................................................................................... 3-22
3.7 Mounting the Unit...................................................................................................................... 3-23
3.7.1 Free-stand Installation........................................................................................................ 3-23
3.7.2 Securing with Mounting Magnets........................................................................................ 3-23
3.7.3 Securing with Mounting Screws.......................................................................................... 3-24
3.7.4 Screw Hook Mounting........................................................................................................ 3-24
3.8 Attaching Dedicated CT to Measurement Target ........................................................................ 3-25
4. Setting the Unit (Unit Operation)..................................................................................................... 4-1
4.1 Setting Procedure and Operation Modes ..................................................................................... 4-1
4.2 Settings (FUN Mode Operation) .................................................................................................. 4-2
4.2.1 Setting Item List ................................................................................................................... 4-2
4.2.2 Selecting "FUN" Operation Mode ......................................................................................... 4-5
4.2.3 Selecting Items .................................................................................................................... 4-6
4.2.4 Definition of Items ................................................................................................................ 4-7
(1) Ranking Clear (CLEAR) ....................................................................................................... 4-7
(2) Recording Interval (CYCLE) ................................................................................................. 4-7
(3) Timer Setting (TIMER) ......................................................................................................... 4-8
(4) Start Trigger (STRIG) ........................................................................................................... 4-8
(5) Start Time (STIME)............................................................................................................... 4-9
(6) End Trigger (ETRIG) ............................................................................................................ 4-9
(7) End Time (ETIME).............................................................................................................. 4-10
(8) Elapsed Time (ELPSD) ...................................................................................................... 4-10
(9) Measurement Mode (MODE)...............................................................................................4-11
(10) Recording Mode (REC) ...................................................................................................... 4-12
(11) Integrated Power Reset Interval (INTEG) ........................................................................... 4-12
(12) The Number of Channels to Use (USECH)......................................................................... 4-13
(13) Measurement Target Circuit (TYPE) ................................................................................... 4-13
(14) Dedicated CT Type (CT)..................................................................................................... 4-13
(15) Voltage of Measurement Target (VOLT).............................................................................. 4-13
(16) Power Factor (PF).............................................................................................................. 4-14
(17) Frequency (FREQ)............................................................................................................. 4-14
(18) Initialization (INIT) .............................................................................................................. 4-14
(19) Others (ETC) ..................................................................................................................... 4-15
(20) Reading Setting Data (RESTR) .......................................................................................... 4-15
(21) Writing the Setting Data (BCKUP) ...................................................................................... 4-16

xii
(22) Time Setting (CLOCK) ....................................................................................................... 4-16
(23) YEAR/MONTH/DAY/TIME Setting ...................................................................................... 4-17
(24) Network Setting (NET) ....................................................................................................... 4-17
(25) Setting IP Address (IP) ....................................................................................................... 4-17
(26) IP Address and Subnet Mask (IP 1 to IP 4, SUB 1 to SUB 4) .............................................. 4-18
(27) D TA I L ................................................................................................................................ 4-18
(28) Rated Primary Side Current Value (SCT5A) ....................................................................... 4-18
(29) Zero-out Low Current Value (LOCUT) ................................................................................ 4-19
(30) Measurement Range (RANGE).......................................................................................... 4-19
(31) Rate/CO2Conversion Value Setting (RATE) ....................................................................... 4-20
(32) Conversion Unit Setting (CONV) ........................................................................................ 4-20
(33) Power Startup REC Restoration (REREC).......................................................................... 4-20
4.2.5 Changing the Set Value...................................................................................................... 4-21
(1) Changing Option Type Item Values (Example: CYCLE) ...................................................... 4-21
(2) Changing Numeric Input Type Item Value (Example: YEAR)............................................... 4-22
4.3 Settings (THR Mode Operation) ................................................................................................ 4-23
4.3.1 Setting Item List ................................................................................................................. 4-23
4.3.2 Selecting "THR" Operation Mode ....................................................................................... 4-24
4.3.3 Selecting Items .................................................................................................................. 4-24
4.3.4 Definition of Items .............................................................................................................. 4-25
(1) Upper Limit Threshold of kWh or Higher Integrated Power (INT H) ..................................... 4-25
(2) Upper Limit Threshold of Less than kWh Integrated Power (INT H)..................................... 4-25
4.3.5 Changing the Set Value...................................................................................................... 4-25
4.4 Copying Setting Data for Multiple Monitor Units ......................................................................... 4-25
5. Measurement and Recording (Unit Operation)............................................................................... 5-1
5.1 Overview..................................................................................................................................... 5-1
5.2 Selecting Operation Mode ........................................................................................................... 5-1
5.3 Screen Transition in RUN Mode .................................................................................................. 5-2
5.4 Starting/Stopping Recording ........................................................................................................ 5-5
5.4.1 Starting Recording................................................................................................................ 5-5
5.4.2 Stopping Recording.............................................................................................................. 5-5
5.5 SD Outputting File to SD Memory Card ....................................................................................... 5-6
5.6 Cancelling Retained Alarm .......................................................................................................... 5-6
5.7 Display Turning OFF ................................................................................................................... 5-6
6. Ratings and Performance................................................................................................................ 6-1
Appendix .................................................................................................................................................... 1
Error Display List ...................................................................................................................................... 1
Character Display List .............................................................................................................................. 2
SD Memory Card Folder Structure............................................................................................................ 3
Calibration ................................................................................................................................................ 4
Installation Diagram.................................................................................................................................. 5
Revision History6-0

1. Product Overview
1-1
1. Product Overview
1.1 Features and Functions
(1) Portable Power Monitor for Easy Operation at Manufacturing Sites
The ZN-CTX21 Portable Power Monitor provides simplified wiring operation and measurement
of power consumption (converted values) without stopping lines. Power data acquisition at
operation sites now becomes easy, contributing to enhanced energy-saving efficiency.
(2) Network Connection
The measured values obtained from multiple Portable Power Monitor units can be acquired to
a PC connected to the units via LAN cable by using the PC software. The individual Portable
Power Monitors can be controlled from the PC to check or change their settings as well as
start/stop the recording. (Refer to "Station Utility User's Manual" for details.)
Online real-time control of the entire network is also possible from the PC by using Wave
Inspire ES, separately sold software.
(3) Recording to an SD Memory Card
The measured data can be recorded in the Portable Power Monitor. Up to approx. 6500 data
items* can be accumulated in the internal memory, which enables the monitor to continue data
recording even at an emergency network failure. The monitor allows its data accumulated in
the internal memory to be output to an SD memory card in CSV format without stopping
measurement. The data can be loaded and controlled on the PC.
* The internal memory can store the data continuously for approx. 105 minutes at the
standard recording interval (1 second). Use an SD memory card for longer time of
recording.
(4) Graph Display and Data Processing Software
The data output to an SD card or acquired to a PC through LAN connection can be displayed
in graphs or processed online by using the PC software. The data items in different periods
can be combined or data from multiple monitor units can be displayed simultaneously top to
bottom on the screen. (Refer to "Station Utility User's Manual" for details.)

1. Product Overview
1-2
(5) Alarm Output
Alarm output terminals are provided on the Portable Power Monitor. The alarm is output when
the integrated power value exceeds the upper limit. This feature provides 'visualization' of the
power limit, allowing the operator to quickly handle problems. (Available in the NORM and
HISPD measurement operation modes)
(6) Backup Batteries
This product provides an uninterruptible power supply consisting of two AAA batteries, which
prevents recording operation from being stopped even at an accidental power outage or
failure. Rechargeable nickel-metal hydride cells or alkaline dry cells can be used.
*1: Battery life depends on the measurement environment and conditions as well as the
battery type and performance.
(7) Auto-range Switch
The Portable Power Monitor provides two measurement ranges: Normal and Small for each
dedicated CT type. The monitor can automatically switch the measurement range to a
small-scale range when the measured power level becomes approx. 5% or below the rated
current. Highly precise low power level measurement is possible.
(8) High-speed Logging
The Portable Power Monitor can provide the dedicated mode for more detailed measurement
recording.
The measurement recording speed can be selected between 100ms at 50Hz or 83ms at 60Hz,
which facilitates detailed analysis of power consumption changes (When the measurement
mode is set to HISPD).
*2: Network functions cannot be used during high-speed logging.

1. Product Overview
1-3
1.2 Configuration
This product can be used in the following two types of configuration.
1.2.1 Standalone
Portable Power Monitors can be operated standalone without connecting them to a network.
The measured data is recorded in the internal memory and can be loaded to a PC via an SD
card. The recorded data in an SD card can be displayed in graphs using SD Viewer ES or
Energy Viewer, software included in Station Utility. (Refer to "Station Utility User's Manual" for
the PC software details.)
1.2.2 Network Connection
Portable Power Monitors can be connected to a PC via LAN. The following operations are
available by using the PC software. (Refer to "Station Utility User's Manual" for the PC
software details.)
(1) Remote Setting and Operation from PC
Settings on Portable Power Monitors (except for IP address settings) and recording start/stop
operation can be controlled remotely from the PC by using the Station Utility (PC software)
setting tool.
(2) Measured Data Acquisition to PC
The measured data on Portable Power Monitors can be acquired to the PC using the Station
Utility (PC software) logging tool. The acquired data can be displayed in graphs offline on SD
Viewer ES or Energy Viewer included in Station Utility.
Standalone
Network Connection
HUB
PC
LAN Cable

1. Product Overview
1-4
1.3 Easy Power Measurement
The Portable Power Monitor displays the measured momentary power during the power
is ON.
The monitor measures electric current values, which are then multiplied by a specified
voltage and power factor (the ratio of effective power) to convert them into power values.
A long press of the SET/REC/STOP key measures and displays an integrated power
consumption.
Another long press of the SET/REC/STOP key stops recording and the integrated power
value up to that moment is displayed as a record in the ranking from the highest to
lowest integrated power values. (Ranking Function)
Up to 9 value records can be logged in the ranking. When the 10th record is added, the
lowest integrated power value is deleted.
The ranking can be cleared using the CLEAR menu item.
The integral power consumption reset function is also available, which enables the
operator to analyze the peak power by only using the monitor unit.

1. Product Overview
1-5
1.4 Setup and Operation Procedure
1.4.1 Standalone Operation
Check the package contents
⇒
3.1 Checking the Package Contents
Check the required items
⇒
3.2 Preparing the Required Items
Connect the sensor head, alarm output terminals and prepare the power supply
⇒
3.3 Configuring the Unit
Make settings directly on the unit
⇒
4 Setting the Unit (Unit Operation)
Install the Station Utility PC software
⇒
"Station Utility User's Manual": 1. Overview and Preparation
Record data by direct unit operation
⇒
5 Measurement and Recording (Unit Operation)
Analyze short-period recording data
⇒
"Station Utility User's Manual": 4. Momentary Value Display
Set the measurement conditions
⇒
3.5 Setting the Measurement Conditions
Analyze long-period recording data
⇒"Station Utility User's Manual": 5. Integration and Summation
Mount the product
⇒
3.7 Mounting the Unit
Attach the dedicated CT
⇒
3.8 Attaching Dedicated CT to Measurement Target

1. Product Overview
1-6
1.4.2 Operation via Network
Analyze short-period recording data
⇒
"Station Utility User's Manual": 4. Momentary Value Display
Check the package contents
⇒
3.1 Checking the Package Contents
Check the required items
⇒
3.2 Preparing the Required Items
Connect the sensor head, alarm output terminals and prepare the power supply
⇒
3.3 Configuring the Unit
Connect the product to a network
⇒
3.6 Connecting to Network
Mount the product
⇒
3.7 Mounting the Unit
Install the Station Utility PC software
⇒
"Station Utility User's Manual": 1. Overview and Preparation
Set the measurement conditions
⇒
3.5 Setting the Measurement Conditions
Analyze long-period recording data
⇒
"Station Utility User's Manual": 5. Integration and Summation
Record data to PC
⇒"Station Utility User's Manual":
3. Recording to PC
Remotely record data to the unit
⇒
"Station Utility User's Manual": 2.
Remote Setting and Operation
Control from PC
Attach the dedicated CT
⇒
3.8 Attaching Dedicated CT to Measurement Target

2. Part Name and Function
2-1
2. Part Name and Function
2.1 Display Unit
Display Unit
Display Unit
▽Key
LAN Port
SET/REC/STOP KeyAlarm Output Terminals
MODE Key
Sensor Head Connector
AC Adapter Terminal
△Key
SD Card Slot
Mounting Screw Hole
Screw Hook Hole
Reset Switch
Battery Cover