ROOTECH ACCURA 2300S User manual

ACCURA 2300S/2350-1P3FSC
Data Center Distribution Panel Digital Power Meter/
Single-Phase Three Feeder Power Measuring Module
Actually makes possible data center energy management
User Guide[English]
Revision 1.20 2019/02/15

Distribution Panel Digital Power Meter
Accura 2300S front view
Accura 2300S rear view
Single-phase Three Feeder Power Measuring Module
Special-Purpose Module
Accura 2350-1P3FSC-125A[Basic Module]
Accura 2350-GAS
Accura 2350-DO
Accura 2350-1P3FSC-125A-DIZCT[Option Module]
Accura 2350-GW
Accura 2350-IDC
Accura 2350-1P3FSC-60A[Basic Module]
Accura 2350-TEMP
Accura 2350-VDC
Accura 2350-1P3FSC-60A-DIZCT[Option Module]
Accura 2350-DCM-50V-80A
Accura 2350-DCM-500V-80A

Accura 2300S/2350-1P3FSC User Guide
Notice
ⓒ2015 Rootech Inc. All Rights Reserved
Page 3
Notice
Symbol
Caution
Indicates the presence of dangerous voltage which can cause severe injury or death to persons
if proper precautions are not followed.
Warning
Alerts the user to the presence of hazards which can cause somewhat injury to persons,
damage to property or damage to the device itself, if proper precautions are not followed.
Note
Indicates the user’s attention to installation, operating and maintenance instructions.
Indicates alternative voltage or current.
Indicates direct voltage or current.
Installation Considerations
Installation and operation of Accura 2300S/2350 should be performed only by qualified, competent
personnel that have appropriate training and experience with high voltage and current devices.
Caution
Failure to observe the following instructions may result in severe injury or death.
During normal operation of Accura 2300S/2350, hazardous voltages are present on its terminal strips of
voltages input and power.
Standard safety precautions should be followed while performing any installation or service work[removing
PT fuses, shorting CT secondaries, etc.].
Do not access to terminal strips of Accura 2300S/2350 after installation.
Warning
Observe the following instructions, or permanent damage to the meter may occur.
Do not apply Accura 2300S/2350 to voltages and currents that exceed Input ratings of PT and CT

Notice
Accura 2300S/2350-1P3FSC User Guide
Page 4
ⓒ2015 Rootech Inc. All Rights Reserved
To use device in the other way than specified by manufacturer can cause severe damage.
Connect ground terminal to the earth ground to protect device from noise and surge.
Terminal screw torque is as follows.
-Barrier-type voltage terminal: 1.35Nm[1.00 ft-lbf] max.
-Barrier-type digital inputs/digital output terminal: 0.90Nm[0.66 ft-lbf] max.
About Manual
Rootech Inc. reserves the right to make changes in the device specifications shown in this User Guide without
notice. Rootech Inc. advises customers to obtain the latest specifications of device before giving orders to
confirm that the information being relied on by the customer is up to date.
In the absence of written agreement to the contrary, Rootech Inc. assumes no liability for Rootech Inc.
applications assistance, customer’s system design, or infringement of patents or copyrights of third parties by
or arising from the use of devices described herein.
The information contained in this document is believed to be accurate at the time of publication, however,
Rootech Inc. assumes no responsibility for any errors which may appear here and reserves the right to make
changes without notice.
Limitation of Liability
Where applicable law allows and does not prohibit or restrict such limitation, Rootech, Inc’s liability for
anything relating to this product shall be limited to the price paid for the product.

Accura 2300S/2350-1P3FSC User Guide
Warranty
ⓒ2015 Rootech Inc. All Rights Reserved
Page 5
Warranty
For products and software that are sold or licensed by Rootech Inc. during the period from the date of receipt
by you until the present, Rootech warrants only to the original purchaser.
The purchased products shall be substantially free from material defects in material and workmanship by
Rootech for two years from the date receipt by you.
The software itself is provided “as is”without any warranty of any kind.
In order for the original purchaser to make a claim under the warranties described above, the original
purchaser must promptly contact Rootech headquarter. After receiving such notice, Rootech may either in
Rootech’s sole discretion, examine the product at the original purchaser’s site or issue shipping instructions to
the original purchaser to return the relevant product to Rootech for examination at the original purchaser’s
expense, transportation charges prepaid.
If after examining the product Rootech reasonably confirms that such examined product does not meet the
warranties, then the original purchaser’s sole remedy and Rootech’s sole obligation or liability shall be, at
Rootech’s option, to repair, replace or refund the price paid for that product.
Limitation of Warranty
The Warranty does not apply to uninterrupted or error-free operation of the Product or cover normal wear and
tear of the product or costs caused by the removal, installation, or troubleshooting of the customer's electrical
systems.
The warranty claims for defects caused by any of the following factors are not covered.
Improper use(alteration, accident, misuse, abuse) or Failure to act in accordance with installation,
operation or maintenance instructions
Unauthorized modifications, changes or attempted repairs
Failure to comply with applicable safety standards & regulations
Damages when transporting or storing
Damages by force majeure, examples are(not necessarily limited): fire, flood, earthquakes, storm damage,
overvoltage & lightning
If the original identify markings(trade-mark, serial number, etc) have been defaced, altered, or removed
Rootech shall not be liable for any other claim than a claim solely for the breach of one of the above
warranties that is made in accordance with the above described procedures- made by the original purchaser,

Warranty
Accura 2300S/2350-1P3FSC User Guide
Page 6
ⓒ2015 Rootech Inc. All Rights Reserved
its employees, agents, or contractors for any loss, damage, or expense incurred due to, caused by, or related
to any purchased product.
Any technical assistance provided by Rootech's personnel or representatives in system design shall be deemed
to be a proposal and not a recommendation. The responsibility for determining the feasibility of such
proposals lies with the original purchaser and should be tested by the original purchaser.
It is the original purchaser’s responsibility to determine the suitability of any product and associated
documentation for its purposes. The original purchaser acknowledges that 100% "up" time is not realizable
because of possible hardware or software defects. The original purchaser recognizes that such defects and
failures may cause inaccuracies or malfunctions.
Only the terms expressed in these limited Warranties shall apply and no distributor, corporation or other entity,
individual or employee of Rootech or any other entity is authorized to amend, modify or extend the Warranties
in any way.
Standard Compliance
Process Control Equipment
E324900
MSIP-REM-RTE-ACCURA 2300S
QMS-1347
KAB-QC-09

Accura 2300S/2350-1P3FSC User Guide
Warranty
ⓒ2015 Rootech Inc. All Rights Reserved
Page 7
Revision History
The following version of Accura 2300S/2350-1P3FSC User Guide has been released.
Revision
Date
Description
Revision 1.20
2019. 02. 15
Initial release

Contents
Accura 2300S/2350-1P3FSC User Guide
Page 8
ⓒ2015 Rootech Inc. All Rights Reserved
Contents
Chapter 1 Introduction.......................................................................................................................................14
Overview ......................................................................................................................................................... 14
Application ...................................................................................................................................................... 17
Device Lineup .................................................................................................................................................. 18
Data Center Distribution Panel Digital Power Meter/Single-phase Three Feeder Power Measuring Module ..... 18
Distribution Panel Digital Power Meter/General Power Measuring Module .................................................... 18
Special-Purpose Module ............................................................................................................................ 18
Installation Example................................................................................................................................... 19
Features.................................................................................................................................................... 21
Chapter 2 Installation ........................................................................................................................................24
Environmental Conditions................................................................................................................................. 24
Before you begin.............................................................................................................................................. 25
Meter Overview......................................................................................................................................... 25
Components ............................................................................................................................................. 26
Dimension ................................................................................................................................................ 27
Installation ................................................................................................................................................ 29
Step 1: Mounting.............................................................................................................................................. 31
Accura 2300S Mounting ............................................................................................................................ 31
Accura 2350-1P3FSC Power Measuring Module Panel Installation ............................................................... 32
Step 2: Accura 2300S Wiring............................................................................................................................ 37
Accura 2300S Voltage Connection ............................................................................................................. 37
Accura 2300S Digital Input/Output Wiring ................................................................................................. 42
Step 3: Accura 2350-1P3FSC Through-hole Wiring ........................................................................................... 45
Step 4: Accura 2350-1P3FSC-DIZCT Wiring...................................................................................................... 49
Step 5: Accura 2300S/2350 Combination of Communication............................................................................ 52
Step 6: Accura 2300S External Communication ................................................................................................. 54
Ethernet Communication ........................................................................................................................... 54
RS-485 Communication ............................................................................................................................ 56
Step 7: Accura 2300S Power Supply and Ground............................................................................................... 57
Power Supply............................................................................................................................................. 57
Ground Terminal....................................................................................................................................... 57
Chapter 3 Accura 2350-1P3FSC Operation/Setup .................................................................................................58
Operation Mode ....................................................................................................................................... 58
Button Operation....................................................................................................................................... 58
Display Mode............................................................................................................................................ 59
Setup Mode............................................................................................................................................... 60
Chapter 4 Accura 2300S Operation/Setup ..........................................................................................................68

Accura 2300S/2350-1P3FSC User Guide
Contents
ⓒ2015 Rootech Inc. All Rights Reserved
Page 9
Device Configuration........................................................................................................................................ 68
Operation Mode ....................................................................................................................................... 68
LED Display............................................................................................................................................... 68
Button Operation....................................................................................................................................... 68
Display Mode................................................................................................................................................... 70
Front Display............................................................................................................................................. 70
Module ID Selection................................................................................................................................... 72
Display Full Screen .................................................................................................................................... 73
Voltage/Current/Power [V∙I∙P]..................................................................................................................... 74
Voltage/Frequency [V∙FREQ] ...................................................................................................................... 74
Current [I] ................................................................................................................................................. 75
Power/Power Factor [P∙PF].......................................................................................................................... 75
Demand [DEMAND].................................................................................................................................. 76
Active Energy [ENERGY]............................................................................................................................. 76
Leakage Current [MODULE] ...................................................................................................................... 76
Ethernet Information [INFO]....................................................................................................................... 77
Temperature/Time [ETC] ............................................................................................................................ 78
Setup Mode ..................................................................................................................................................... 79
Setup Full Screen....................................................................................................................................... 80
Measurement [METER] ............................................................................................................................... 81
Event [EVENT]............................................................................................................................................ 86
RS-485 Communication [COMM] .............................................................................................................. 96
Ethernet Communication [NETWORK] ........................................................................................................ 98
Reset [RESET]........................................................................................................................................... 101
Display [DISPLAY] .................................................................................................................................... 102
Module ID [MODULE].............................................................................................................................. 105
Information [INFO].................................................................................................................................. 109
Digital Input/Output [ETC] ....................................................................................................................... 110
Event Log Mode ............................................................................................................................................. 115
Start Event and End Event ........................................................................................................................ 115
Start Event Alarm Generation................................................................................................................... 115
Start Event Alarm Clearing....................................................................................................................... 115
Button Function ....................................................................................................................................... 116
Event Log Number................................................................................................................................... 117
Event Time-stamp.................................................................................................................................... 117
Dip Event Log.......................................................................................................................................... 118
Swell Event Log ....................................................................................................................................... 118
Fuse Fail Event Log .................................................................................................................................. 119
Temperature Evnt Log .............................................................................................................................. 119

Contents
Accura 2300S/2350-1P3FSC User Guide
Page 10
ⓒ2015 Rootech Inc. All Rights Reserved
Current Event Log.................................................................................................................................... 120
Leakage Current Event Log ...................................................................................................................... 120
Demand Current Event Log...................................................................................................................... 121
1P3FSC DI Event Log............................................................................................................................... 121
No Event Log .......................................................................................................................................... 121
Required Setup Step ....................................................................................................................................... 122
Step 1: Accura 2300S Connection, PT Rating ............................................................................................ 122
Step 2: Accura 2350 Communication ID Auto-Assignment and Update ..................................................... 123
Step 3: Accura 2300S Ethernet Setup........................................................................................................ 126
Chapter 5 Measurement Description .................................................................................................................127
General Measurement.................................................................................................................................... 127
Measurement Event ........................................................................................................................................ 129
Measurement for Voltage Connection.............................................................................................................. 130
Three-phase 4-wire ................................................................................................................................. 130
Three-phase 3-wire ................................................................................................................................. 131
Single-phase 3-wire................................................................................................................................. 133
Single-phase 2-wire................................................................................................................................. 134
Dip[Sag]/Swell Measurement .......................................................................................................................... 135
Leakage Current Measurement ....................................................................................................................... 136
Residual Voltage Measurement ....................................................................................................................... 136
Phase Power Measurement ............................................................................................................................. 137
Power Factor(PF) Measurement........................................................................................................................ 138
PF Phase Angle Status Measurement ............................................................................................................... 138
Demand Measurement................................................................................................................................... 139
Unbalance(NEMA MG1)................................................................................................................................. 140
Sequence Unbalance...................................................................................................................................... 141
Aggregation................................................................................................................................................... 142
APPENDIX A Specification.................................................................................................................................144
APPENDIX B Standard Compliance ...................................................................................................................147
APPENDIX C Accuracy/Reliability.......................................................................................................................148
Accuracy................................................................................................................................................. 148
Reliability ................................................................................................................................................ 149
APPENDIX D Ordering Information ...................................................................................................................150

Accura 2300S/2350-1P3FSC User Guide
Contents
ⓒ2015 Rootech Inc. All Rights Reserved
Page 11
Figures
Fig 1.1 Accura 2350-1P3FSC Dimension Compatibility for Each Rating of MCCB/ELB .................................. 16
Fig 1.2 Accura 2350-1P3FSC Power Measuring Module Installation............................................................. 16
Fig 1.3 Accura 2300S/2350-1P3FSC Installation Example[Using external CT and Accura 2350-3P-CT5A
model incoming feeder]............................................................................................................................. 19
Fig 1.4 Accura 2300S/2350-1P3FSC Installation Example[Using Accura 2350-1PSCSH model at incoming
feeder]...................................................................................................................................................... 20
Fig 2.1 Accura 2300S Front ....................................................................................................................... 25
Fig 2.2 Accura 2300S Side ........................................................................................................................ 25
Fig 2.3 Accura 2300S Rear ........................................................................................................................ 25
Fig 2.4 Accura 2350-1P3FSC Power Measuring Module.............................................................................. 26
Fig 2.5 Accura 2300S Components............................................................................................................ 26
Fig 2.6 Accura 2350-1P3FSC Power Measuring Module Components.......................................................... 26
Fig 2.7 Accura 2300S Front Dimension ...................................................................................................... 27
Fig 2.8 Accura 2300S Side Dimension........................................................................................................ 27
Fig 2.9 Accura 2300S Rear Dimension ....................................................................................................... 27
Fig 2.10 Accura 2350-1P3FSC Power Measuring Module Dimension........................................................... 28
Fig 2.11 Accura 2300S/2350-1P3FSC [Using 1PSCSH module at incoming feeder] ..................................... 29
Fig 2.12 Accura 2300S/2350-1P3FSC [Using 3P-CT5A module at incoming feeder]..................................... 30
Fig 2.13 Accura 2300S Mounting[ANSI 4”]................................................................................................. 31
Fig 2.14 Accura 2300S Mounting[DIN96]................................................................................................... 31
Fig 2.15 Accura 2350-1P3FSC Power Measuring Module Installation[Using mounting wing] ......................... 32
Fig 2.16 Accura 2350-1P3FSC Mounting Plate Cutout[Using mounting wing]............................................... 33
Fig 2.17 Accura 2350-1P3FSC Mounting Plate [Using the lower part of power measuring module] ............... 34
Fig 2.18 Accura 2350-1P3FSC Remodelling Installation[Using Cable tie] ..................................................... 35
Fig 2.19 Accura 2350-1P3FSC Remodelling Installation[Using lower part of module] ................................... 36
Fig 2.20 Accura 2300S Voltage Connection................................................................................................ 37
Fig 2.21 Three-phase 4-wire Direct Connection .......................................................................................... 38
Fig 2.22 Three-phase 4-wire 3PT Connection ............................................................................................. 38
Fig 2.23 Three-phase 3-wire Direct Connection .......................................................................................... 39
Fig 2.24 Three-phase 3-wire 2PT Connection ............................................................................................. 39
Fig 2.25 Single-phase 3-wire Direct Connection ......................................................................................... 40
Fig 2.26 Single-phase 3-wire 2PT Connection............................................................................................. 40
Fig 2.27 Single-phase 2-wire Direct Connection ......................................................................................... 41
Fig 2.28 Single-phase 2-wire 1PT Connection............................................................................................. 41
Fig 2.29 Accura 2300S Digital Input/Output Channel ................................................................................. 42
Fig 2.30 Digital Input................................................................................................................................. 42
Fig 2.31 DC Relay Application ................................................................................................................... 44

Contents
Accura 2300S/2350-1P3FSC User Guide
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ⓒ2015 Rootech Inc. All Rights Reserved
Fig 2.32 AC Relay Application.................................................................................................................... 44
Fig 2.33 Accura 2350-1P3FSC Through-hole Installation Position ................................................................ 46
Fig 2.34 Accura 2350-1P3FSC Measurement Principle................................................................................ 46
Fig 2.35 Three-phase 4-wire Through-hole Wiring...................................................................................... 47
Fig 2.36 Three-phase 3-wire Through-hole Wiring...................................................................................... 48
Fig 2.37 Digital Input 4 Channels of Option Module................................................................................... 49
Fig 2.38 ZCT Input 3 Channels of Option Module ...................................................................................... 50
Fig 2.39 ZCT Wiring.................................................................................................................................. 50
Fig 2.40 Digital Input and ZCT Wiring of Option Module ............................................................................ 51
Fig 2.41 Accura 2300S/2350 Combination Example of Communication ..................................................... 52
Fig 2.42 Accura 2300S Ethernet Communication Port ................................................................................. 54
Fig 2.43 Accura 2300S Ethernet Communication........................................................................................ 55
Fig 2.44 Accura 2300S RS-485 Communication......................................................................................... 56
Fig 2.45 Accura 2300S RS-485 Communication Connection....................................................................... 56
Fig 2.46 Accura 2300S Power Supply ......................................................................................................... 57
Fig 4.1 Accura 2300S Front ....................................................................................................................... 68
Fig 4.2 Screen of Display Mode.................................................................................................................. 69
Fig 4.3 Screen of Setup Mode .................................................................................................................... 69
Fig 4.4 Screen of Event Log Mode .............................................................................................................. 69
Fig 4.5 Accura 2300S Front Overview ........................................................................................................ 70
Fig 4.6 Accura 2300S Temperature Sensor ................................................................................................. 71
Fig 4.7 Accura 2350 Module ID Selection at Upper Part of LCD Screen........................................................ 72
Fig 4.8 Line-to-neutral Voltage/Current/Power Display Screen ..................................................................... 74
Fig 4.9 Line-to-line Voltage/Current/Power Display Screen .......................................................................... 74
Fig 4.10 Line-to-line Voltage Display Screen ............................................................................................... 74
Fig 4.11 Current Display Screen................................................................................................................. 75
Fig 4.12 Power Display Screen ................................................................................................................... 75
Fig 4.13 Demand Active Power Display Screen............................................................................................ 76
Fig 4.14 Net Energy Display Screen of Feeder 1.......................................................................................... 76
Fig 4.15 Leakage Current Display Screen ................................................................................................... 77
Fig 4.16 Ethernet Connection Display Screen.............................................................................................. 77
Fig 4.17 Accura 2300S Rear Surface Temperature Display Screen................................................................ 78
Fig 4.18 3-phase 4-wire connection[3P4W]: PT Primary VAB , Secondary V12 ................................................. 81
Fig 4.19 3-phase 3-wire connection[3P3W]: PT Primary VAB , Secondary V12 ................................................. 82
Fig 4.20 1-phase 3-wire connection[1P3W]: PT Primary VL12 , Secondary V13................................................. 82
Fig 4.21 1-phase 2-wire connection[1P2W]: PT Primary VL12 , Secondary V1N ................................................ 82
Fig 4.22 Dip Event Setup[3-phase 4-wire]................................................................................................... 87
Fig 4.23 Dip Event Setup[3-phase 3-wire]................................................................................................... 87
Fig 4.24 Swell Event Setup[3-phase 4-wire]................................................................................................. 89

Accura 2300S/2350-1P3FSC User Guide
Contents
ⓒ2015 Rootech Inc. All Rights Reserved
Page 13
Fig 4.25 Swell Event Setup[3-phase 3-wire]................................................................................................. 89
Fig 4.26 Dip[Sag] Event Alarm Display ..................................................................................................... 115
Fig 4.27 Swell Event Alarm Display .......................................................................................................... 115
Fig 4.28 Event Log Number Example........................................................................................................ 117
Fig 5.1 3PT 3P4W Connection ................................................................................................................. 130
Fig 5.2 2PT 3P3W Connection ................................................................................................................. 131
Fig 5.3 2PT 1P3W Connection ................................................................................................................. 133
Fig 5.4 1PT 1P2W Connection ................................................................................................................. 134
Fig 5.5 Half-cycle Refreshed 1-cycle RMS Calculation................................................................................ 135
Fig 5.6 Voltage Dip[Sag] Detection........................................................................................................... 135
Fig 5.7 Power Sign and PF Phase Angle Status .......................................................................................... 138
Fig 5.8 Demand Calculation.................................................................................................................... 139
Fig 5.9 Prediction Demand Calculation .................................................................................................... 139
Fig 5.10 Symmetrical Components........................................................................................................... 141
Fig 5.11 Aggregation Process .................................................................................................................. 142

Chapter 1 Introduction
Accura 2300S/2350-1P3FSC User Guide
Page 14
ⓒ2015 Rootech Inc. All Rights Reserved
Chapter 1 Introduction
Overview
Energy Management Paradigm Shift from Main Load to Branch Load
In the energy low-cost era, total energy management centered on switchgear panels such as main feeder
(from feeder to ABS) for stable power supply played an important role. However, there is an increasing
demand to manage the branch load electrical energy in manufacturing plants, IDC centers, and the
distribution boards of buildings when the energy costs rise sharply and the CO2 emission reduction policy is
implemented in 2015.
Limit of Applying the Switchgear Panel Digital Power Meter to Distribution Panel
To apply the digital power meter which is long used in the existing switchgear panel to distribution panel has
had the limit caused by narrow space, hazardous wiring of voltage and current, and high installation cost.
This fundamentally makes it difficult for energy management supervisor to access to the energy information of
branch loads in distribution panel.
Distribution Panel Digital Power Meter Specialized for Branch Load Management
Distribution panel digital power meter comprises both Accura 2300S[digital power meter] which is mounted
on front of distribution panel, and Accura 2350[power measuring module] which is mounted in branch loads
inside the panel. Accura 2300S collects power data from several Accura 2350s on RS-485 communication
and displays measurements of only one Accura 2350 selected on its LCD screen. This provides energy
management supervisor with the power quality information of branch loads which was impossible to identify.
Accura 2350-1P3FSC Single-phase Three Feeder Power Measuring Module, Suitable for Data Center
Distribution Panel Having Multiple Single-phase Feeders
Data center distribution panel has multiple single-phase feeders of the same current capacity. Accura 2350-
1P3FSC single-phase three feeder power measuring module measures three single-phase feeders of the same
current capacity at the same time. Installation time and cost can be drastically reduced comparing to
installment of Accura 2350-1P[1PSC] single-phase power measuring module.
Accura 2350-1P3FSC-DIZCT Single-phase Three Feeder Power Measuring Module[Option Module]
Supporting the Monitoring of Leakage Current for Each Single-phase Feeder, and MCCB Trip-status
Accura 2350-1P3FSC-DIZCT single-phase three feeder power measuring module[Option module] provides
the additional function to monitor both leakage current and MCCB trip-status of each single-phase feeder by
expanding the function of Accura 2350-1P3FSC single-phase three feeder power measuring module[Basic
module]. This makes it possible to do not only the energy management but also the safety management for
consistency of power supply.

Accura 2300S/2350-1P3FSC User Guide
Chapter 1 Introduction
ⓒ2015 Rootech Inc. All Rights Reserved
Page 15
Voltage ±0.2% RD Error/Current ±0.5% RD Error/IEC62053-22 Class 0.5S
Recently enterprise energy management system is essential for effective energy use and preventive
management to prepare CO2 emission management in data center, plant and building. The key factor to
determine reliability of the energy management is measuring accuracy. Accura 2300S/2350 supports
precision measurement of ±0.2% reading error of voltage and ±0.5% 1 reading error of current, and
conforms to IEC62053-22 class 0.5S for power and energy. This makes it possible to precisely analyze and
diagnose various problems with energy management and power facilities.
1. Single-phase three feeder power measuring module can increase the error of up to ± 1% reading value depending on
the penetration position of power cable.
Dip[Sag]/Swell[IEC61000-4-30], Power Quality
Accura 2300S provides a variety of power quality information, including dip[sag], swell and harmonic
information[up to 31th], crest factor, K-factor, and unbalance ratio. This enables the energy manager to easily
identify power quality changes in various power distribution systems in the power plant, thus realistic power
quality management is possible. Power quality information conforms to IEC61000-4-30.
Maximum/Minimum/Average during Aggregation Interval
Accura 2300S calculates average at every 0.5 second interval from measurements at cycle time, providing
maximum/minimum/average at 1 second, 5 second, 1 minute, 5 minute, 1 hour and 6 hour intervals from
average at every 0.5 second interval. The measuring interval which is more than 0.5 second interval is called
aggregation interval.
Accura 2300S provides both of maximum/minimum/average at each aggregation interval and time
information[time stamp] at the time of generation, as well as average at 0.5 second interval about various
measuring parameters such as voltage, current, power, and etc on communication. This includes information
of the measuring parameters fluctuating instantaneously, which makes it possible to precisely analyze the
trend of quality of voltage, current, and power.
CE/UL Safety and Reliablity
The internal and external structures of Accura 2300S [instrument design, circuit design, and electrical fire]
meet the safety and reliability standards of CE[EN61326-1, EN61326-2-1, EN61010-1] and UL[UL61010-1].
All-in-one Installation with MCCB/ELB Having the Same Current Rating
Accura 2350-1P3FSC single-phase three feeder power measuring module is installed all-in-one with the
existing MCCB because the distance between through-holes of the module on two kinds of current rating, 60A
and 125A is compatible with that between terminals of MCCB/ELB.

Chapter 1 Introduction
Accura 2300S/2350-1P3FSC User Guide
Page 16
ⓒ2015 Rootech Inc. All Rights Reserved
Fig 1.1 Accura 2350-1P3FSC Dimension Compatibility for Each Rating of MCCB/ELB
Split-core Structure Possible to Install on Live Wire
Accura 2350-1P3FSC single-phase three feeders power measuring module makes it possible to install without
power interruption by split-core structure.
Fig 1.2 Accura 2350-1P3FSC Power Measuring Module Installation

Accura 2300S/2350-1P3FSC User Guide
Chapter 1 Introduction
ⓒ2015 Rootech Inc. All Rights Reserved
Page 17
Application
Enterprise Energy Management
Providing energy information of branch loads in distribution panel, Accura 2300S/2350 together with Accura
3300S/3500S/3550S/3700/7500 mounted in switchgear panels truly makes it possible to realize enterprise
energy management system.
Data Center Energy Management on Each Server
Accura 2350-1P3FSC single-phase three feeder power measuring module is optimized for server distribution
panel with multiple single feeders of the same current capacity, measuring three single feeders per one
module. In addition, Accura 2350-1P3FSC-DIZCT single-phase three feeder power measuring module[option
module] supports safety management by monitoring both leakage current of each feeder and MCCB trip-
status.
CO2 Emission Management by Reduction of High Energy Cost
Accura 2300S/2350 provides various power quality information which enables management of energy use,
power facility operation and high efficiency device analysis. This can be an essential infrastructure for
management of CO2 emission, presenting the exact analytic criterion on energy usage status to energy
management supervisor.
Energy Efficiency Verification of High Efficiency Device
Accura 2300S/2350 provides high accuracy energy information to determine the efficiency of high efficiency
device such as LED, lighting, motor, and power facility.

Chapter 1 Introduction
Accura 2300S/2350-1P3FSC User Guide
Page 18
ⓒ2015 Rootech Inc. All Rights Reserved
Device Lineup
Data Center Distribution Panel Digital Power Meter/Single-phase Three Feeder Power
Measuring Module
Data center distribution panel digital power meter comprises Accura 2300S [digital power meter] which is
mounted at the front of distribution panel, and Accura 2350-1P3FSC which is mounted per 3 feeders inside
the panel. Accura 2300S collects and display data from the large number of Accura 2350-1P3FSC using the
6C telephone line 1.
Device
Model
Description
Weight
Distribution panel digital
power meter
Accura 2300S
Collects data from all Accura 2350s
487 g
Selectively displays one Accura 2350 2
Ethernet[or RS-485] communication
Temperature of Accura 2300S rear side 3
Single-phase three feeder
Power measuring module
Accura 2350-1P3FSC-125A
Current measurement rating 125A
457 g
Accura 2350-1P3FSC-125A-DIZCT
Current measurement rating 125A,
option[connects DI, ZCT]
468 g
Accura 2350-1P3FSC-60A
Current measurement rating 60A
393 g
Accura 2350-1P3FSC-60A-DIZCT
Current measurement rating 60A,
option[connects DI, ZCT]
404 g
1. Packaged with device. Core conductor of telephone line should be minimum 0.128mm2[26 AWG]. Distance from the
power line should be 5mm or more so that communication interference caused by the noisy power line will not occur.
2. Accura 2300S displays only measurements of one Accura 2350 selected. Refer to “Chapter 4>Display Mode>Module ID
Selection”.
3. It is not for firewatching, but for reference only. A temperature sensor is mounted on the rear of Accura 2300S.
Distribution Panel Digital Power Meter/General Power Measuring Module
Refer to “Accura 2300S/2350 User Guide”for details of distribution panel digital power meter except for the
Accrua 2350-1P3FSC which measures the three single-phase feeder at the same time.
Special-Purpose Module
Accura 2350 module for special purpose in addition to measuring module is as follows. Refer to “Accura
2300S/2350 User Guide”for more details about these special-purpose modules.
Module
Model
Description
GAS
Accura 2350-GAS
Gas concentration of the surroundings
GW[Gateway]
Accura 2350-GW
Collects data of device that supports RS-485 commuinication.
TEMP[Temperature]
Accura 2350-TEMP
Simultaneous measurement of inside and outside termperature
DO[Digital Output]
Accura 2350-DO
Provides digital output which is able to be controlled in remote and
from Accura 2300S.
IDC[DC Current Input]
Accura 2350-IDC
Analog current input [-20mA to 20mA]
VDC[DC Voltage Input]
Accura 2350-VDC
Analog voltage input [-50V to 50V]
DCM
[DC voltage/current]
Accura 2350-DCM
-50V-80A
Measurement up to DC 50V and 80A
-500V--80A
Measurement up to DC 500V and 80A

Accura 2300S/2350-1P3FSC User Guide
Chapter 1 Introduction
ⓒ2015 Rootech Inc. All Rights Reserved
Page 19
Installation Example
Accura 2300S/2350-1P3FSC Installation Example[Accura 2350-3P-CT5A using external CT is used at
the incoming feeder]
The following is the installation example of single-phase three feeder power measuring module optimized for
distribution panel branching single-phase power line of the same current capacity. However, as the incoming
feeder has large current capacity and three-phase power line, it can not be measured by Accura 2350-
1P3FSC. In this case, Accura 2350-3P-CT5A using external CT is installed in Fig 1.3 or Accura 2350-1PSCSH
installed in Fig 1.4. Refer to “Accura 2300S/2350 User Guide”for the details about Accura 2350-3P-CT5A-75
and Accura 2350-1PSCSH.
Fig 1.3 Accura 2300S/2350-1P3FSC Installation Example[Using external CT and Accura 2350-3P-
CT5A model incoming feeder]
1. If through-hole current exceeds 250A, Accura 2350-3P-CT5A-75 using external CT should be chosen.
Refer to “Accura 2300S/2350 User Guide”for details about Accura 2350-3P-CT5A-75.
2. Packaged with device. Core conductor of telephone line should be minimum 0.128mm2[26 AWG], and is recommended
as the distance more than 5mm with power line which creates a lot of noise not to cause communiation interferences.
3. Only for communication with host program.
Installation
Front panel
Accura 2300S
Distribution panel digital meter
Incoming feeder
Accura 2350-3P-CT5A-75 1
Three-phase power measuring module
Branch load
Accura 2350-1P3FSC-125
Accura 2350-1P3FSC-60
Single-phase three feeder power
measuring module
Internal
communication
6C telephone line 2
External
communication
Ethernet 3

Chapter 1 Introduction
Accura 2300S/2350-1P3FSC User Guide
Page 20
ⓒ2015 Rootech Inc. All Rights Reserved
Accura 2300S/2350-1P3FSC Installation Example [Using Accura 2350-1PSCSH model at incoming
feeder]
Fig 1.4 Accura 2300S/2350-1P3FSC Installation Example[Using Accura 2350-1PSCSH model at
incoming feeder]
1. For three-phase measurement, three split-core single-phase single hole power measuring modules are needed, one
module for each phase[A, B, C]. However in three-phase 3-wire, only two modules are needed.
2. Packaged with device. Core conductor of telephone line should be minimum 0.128mm2[26 AWG], and is recommended
as the distance more than 5mm with power line which creates a lot of noise not to cause communiation interferences.
3. Only for communication with host program.
Note
Accura 2350-1PSCSH power measuring module is recommended in the following cases.
- Measures current exceeds 250A.
- Through-hole connection of 3P/1P module is difficult because of a large gap between bus bars[or cables].
[Three-phase 3-wire 2 modules]
Installation
Front panel
Accura 2300S
Distribution panel digital meter
Incoming feeder
Accura 2350-1PSCSH 1
Single-phase single hole power
measuring module
Branch load
Accura 2350-1P3FSC-125
Accura 2350-1P3FSC-60
Single-phase three feeder power
measuring module
Internal
communication
6C telephone line 2
External
communication
Ethernet 3
[Three-phase 4-wire 3 modules]