ROOTECH ACCURA 3500S User Manual
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ROOTECH ACCURA 3500S User Manual

High accuracy digital power meter
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Notice

Symbols
Caution
Indicates the presence of dangerous voltage which can cause severe injury or death if
proper precautions are not followed.
Caution
Alerts users of the presence of hazards which can cause injury to persons, property
damage or damage to the device if proper precautions are not followed.
Note
Indicates major instructions for the installation, operation, and maintenance of the
product.
Installation Considerations
The installation, operation, and maintenance of the product should be performed only by
qualified, competent personnel that have received appropriate training for high voltage and
current devices.
Indicates alternative voltage or current.
Indicates direct voltage or current.

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  • Page 1: Notice

    ◼ Notice Symbols Caution Indicates the presence of dangerous voltage which can cause severe injury or death if proper precautions are not followed. Caution Alerts users of the presence of hazards which can cause injury to persons, property damage or damage to the device if proper precautions are not followed. Note Indicates major instructions for the installation, operation, and maintenance of the product.
  • Page 2 Notice Symbols Caution Indicates the presence of dangerous voltage which can cause severe injury or death if proper precautions are not followed. Caution Alerts users of the presence of hazards which can cause injury to persons, property damage or damage to the device if proper precautions are not followed. Note Indicates major instructions for the installation, operation, and maintenance of the product.
  • Page 3 During normal operation of the product, hazardous voltages are present on the ◼ terminals that connect PTs/CTs, digital inputs, power, and external I/O circuits. The PT/CT secondary can produce lethal voltage or current caused by the energy of the primary. Standard safety precautions should be followed during the installation and maintenance ◼...
  • Page 4 About the Manual Rootech, Inc. reserves the right to make changes in the product specifications shown in this User Guide without prior notice. We recommend that customers should obtain the latest information on product specifications and the manual before making orders.
  • Page 5 Rootech will decide at its discretion whether to repair or replace it or give a refund for the product for when the warranty period for the product expired or issues related to the product are not applicable for warranty terms and conditions.
  • Page 6 Rootech shall not be liable for any other claims except the claims made by customers, including the original purchaser, his employees, agents, or contractors for any loss, damage, or expense incurred related to the purchased product when the above warranty terms and conditions are not fulfilled.
  • Page 7 Revision History The following versions of the Accura 3500S User’s Guide have been released. Revision Revision date Description Revision 1.0 2008. 03. 05 Initial draft Revision 1.1 2010. 10. 07 Voltage input rating adjusted Revision 1.2 2015. 05. 12 Standard compliance updated Revision 1.3...

  • Page 8: Table Of Contents

    Contents Notice.............................. 1 Chapter 1 Introduction ........................13 Overview ............................13 Cost-effective Power Meter Providing Digital/Analog Inputs and Outputs ........13 Accurate Measurements/ Power Quality Data Available ............13 CE/UL Safety and Reliability ....................13 Easily Attachable I/O Modules ....................14 Features ............................
  • Page 9 Voltage Input .......................... 24 Current Input ......................... 25 Wiring Diagram Using External PTs ..................26 Direct Connection Diagram Using No PTs ................29 Step 3: Wiring the Device for RS485 Communication ..............32 Step 4: Wiring the Power Supply and Ground Terminal ..............33 Power Supply..........................
  • Page 10 Appendix A Specifications ........................ 72 Appendix B Standard Compliance ....................73 Appendix C Test Report........................74 Measuring Test ..........................74 Reliability Test ..........................75 Page 10...
  • Page 11 Figures Fig 1.1 Front Side ........................21 Fig 1.2 Rear Side ........................21 Fig 1.3 Rear Side of Basic Module[DIO Module] ..............21 Fig 1.4 Front View ........................22 Fig 1.5 Rear View ........................22 Fig 1.6 Side View ........................22 Fig 1.7 Side View[one expansion module attachable as an option when ordering the product] ...
  • Page 12 Fig 1.35 Analog Inputs ......................45 Fig 1.36 AO Module ......................46 Fig 1.37 Analog Output ......................46 Fig 1.38 Wiring of Power Supply and Ground Terminal of the Expansion Module ...... 47 Fig 2.1 Measurement Group A, B .................... 51 Fig 2.2 Measurement Group C ....................

  • Page 13: Chapter 1 Introduction

    Overview Cost-effective Power Meter Providing Digital/Analog Inputs and Outputs Accura 3500S is an integrated digital power meter that performs power measurements and also provides digital/analog inputs and outputs. It is cost-effective in that it perfectly suits the needs of managing various digital and analog inputs and outputs in the field. Thus, Accura 3500S eliminates the need to buy extra RTU products.

  • Page 14: Easily Attachable I/O Modules

    Easily Attachable I/O Modules A variety of I/O expansion modules can be easily attached to the rear side of the Accura 3500 device. The I/O modules available include the digital input, digital output, analog input, and analog output modules. Users can purchase the module they need when ordering the Accura 3500 device.

  • Page 15: Features

    Features Measurement ◼ 64 samples/cycle, True RMS ◼ IEC 62053-22 Class 0.5S ◼ 50, 60Hz ◼ Energy stored periodically to non-volatile memory. ◼ 4 Quadrant Energy kWh/kVARh received , kWh/kVARh delivered kWh/kVARh net[kWh/kVARh received - kWh/kVARh delivered] kWh/kVARh total[kWh/kVARh received + kWh/kVARh delivered] ◼...

  • Page 16: Communication

    DO Module: Digital Output 4 channels ◼ AI Module: Analog Input 6 channels ◼ AO Module: Analog Output 6 channels ◼ Only one module to be chosen as option when ordering. Communication RS485 Port[rear] ◼ Modbus RTU Protocol Baud rate: 1,200 - 57,600bps Power Supply AC 85 - 265V, 50/60Hz ◼...

  • Page 17: Applications

    Module Structure to adapt to different requirements in the field I/O expansion modules can be easily added to the rear side of Accura 3500S. Thus, its modular structure helps to meet requirements for various applications in the field. In the existing IBS(Intelligent Building System), all I/O modules should be connected to the DDC panel.
  • Page 18 energy demand, replacing energy facilities, and performing energy planning. In this regard, measurement accuracy is a key factor that determines the reliability of energy management systems. Accura 3500 provides highly accurate measurements of voltage and current (±0.2% of reading) and meets IEC62053-22 class 0.5S for power and energy measurements. It allows for efficient energy management through accurate measurements Page 18...

  • Page 19: Parameters

    Parameters Item Real-time Average Total Maximum Minimum † Phase voltage ■ ■ ■ ■ † Line to line voltage ■ ■ ■ ■ Current ■ ■ ■ Power Active ■ ■ ■ † † Reactive ■ ■ ■ Apparent † †...

  • Page 20: Chapter 2 Mounting

    Chapter 2 Mounting Environmental Conditions The Accura 3500S should be mounted in a dry, dirt free location away from heat sources and very high electric fields. To operate properly and effectively, environmental conditions should range within the following guidelines Description...

  • Page 21: Before You Begin

    Before You Begin Before installing the meter, observe the instructions in this guide and read the safety precautions presented on the “Installation Considerations” page. Caution Power up after the voltage and current wiring is completed. Meter Overview Fig 1.1 Front Side Fig 1.2 Rear Side Fig 1.3 Rear Side of Basic Module[DIO Module] Page 21...

  • Page 22: Meter Dimensions

    Meter Dimensions Fig 1.4 Front View Fig 1.5 Rear View Fig 1.7 Side View[one expansion module attachable as an Fig 1.6 Side View option when ordering the product] Page 22...

  • Page 23: Step 1: Mounting

    Step 1: Mounting Sequence Remove connector on the bottom of the meter. Fit the meter into cutout[ANSI 4” or DIN96] Fix the meter onto the panel by turning the mounting nut. When conforming to the DIN96 standard, there is no need to drill holes on the panel. Fig 1.8 ANSI 4”...

  • Page 24: Step 2: Voltage And Current Inputs

    Step 2: Voltage and Current Inputs Fig 1.10 Voltage and Current Connector Voltage Input Item Description Pin name Connector Terminal block Wire spec 2.1 to 3.5 mm [ 14 to 12 AWG] Rating 0 - 600V 3 - L-L[Line to line], 0 - 457V 3 - L-N[Line to neutral] Burden 0.02VA/phase @220V Impedance...

  • Page 25: Current Input

    Edition, Pollution Degree 2, Overvoltage Category Ⅲ. IEC61010-1 2 Caution In case where PTs are required, fuses should be installed on the secondary of the PTs. Current Input Item Description Pin name 1S, 2S, 3S, 1L, 2L, 3L Connector Terminal block[Busbar] Wire spec 2.1 to 6 mm [ 14 to 10 AWG]...

  • Page 26: Wiring Diagram Using External Pts

    Wiring Diagram Using External PTs Caution Failure to observe the following wiring diagrams may result in severe injury or death. Be sure to use shorting block when connecting the meter to CT secondaries. Fig 1.11 Single Phase 2 Wire Connection, Wiring Mode = 1P2U Caution In single phase 2 wire mode, be sure to use V , 1S, 1L terminals as the above.
  • Page 27 Fig 1.12 Three Phase 3 Wire Open Delta Connection Using 2CTs, Wiring Mode = 3P3O Caution In three phase 3 wire open delta connection mode, be sure to connect V to V as the above. Fig 1.13 Three Phase 3 Wire Open Delta Using 3CTs, Wiring Mode = 3P3O Caution In three phase 3 wire open delta connection mode, be sure to connect V to V...

  • Page 28: Fig 1.14 Three Phase 4 Wire Connection Using 3 Pts And 3 Cts, Wiring Mode = 3P4U

    Fig 1.14 Three Phase 4 Wire Connection Using 3 PTs and 3 CTs, Wiring Mode = 3P4U Page 28...

  • Page 29: Direct Connection Diagram Using No Pts

    Direct Connection Diagram Using No PTs Caution Failure to observe the following wiring diagrams may result in severe injury or death. Be sure to use shorting block when connecting the meter to CT secondaries. Fig 1.15 Single Phase 2 Wire Direct Connection, Wiring Mode = 1P2U Caution Use PTs for voltages over 457V[line to line].

  • Page 30: Fig 1.16 Single Phase 3 Wire Direct Connection Using 2 Cts, Wiring Mode = 1P3U

    Fig 1.16 Single Phase 3 Wire Direct Connection Using 2 CTs, Wiring Mode = 1P3U Caution Use PTs for voltages over 457V[line to line]. Be sure to use V , 1S, 1L, 3S, 3L terminals as the above. Fig 1.17 Three Phase 3 Wire Open Delta Direct Connection, Wiring Mode = 3P3O Caution Use PTs for voltages over 457V[line to line].

  • Page 31: Fig 1.18 Three Phase 3 Wire Open Delta Direct Connection Using 3 Cts Wiring Mode = 3P3O

    Fig 1.18 Three Phase 3 Wire Open Delta Direct Connection Using 3 CTs Wiring Mode = 3P3O Caution Use PTs for voltages over 457V[line to line]. be sure to connect V to V as the above. Fig 1.19 Three Phase 4 Wire Direct Connection Mode Using 3 CTs Wiring Mode = 3P4U Caution In three phase 4 wire direct connection, use PTs for voltages over 600V(475V)[line to line].

  • Page 32: Step 3: Wiring The Device For Rs485 Communication

    Using a UL2919 cable is recommended for communication. Comm Indicator The Comm LED blinks green when the meter is transmitting data. Protocol The meter provides Modbus RTU protocol. Refer to the Accura 3500S Communication User’s Guide for details about the Modbus protocol. Page 32...

  • Page 33: Step 4: Wiring The Power Supply And Ground Terminal

    Step 4: Wiring the Power Supply and Ground Terminal Fig 1.21 Wiring of Power Supply and Ground Terminal Power Supply Item Description Pin name PP[+/L], PN[-/N] Connector Screw terminal[Pluggable] Wire spec 1.25 to 3.5 mm [ 24 to 14 AWG] Ratings AC 85 - 265V, 50/60Hz -, DC 100 - 300V Compliance...

  • Page 34: Step 5: Adding The Basic Module Dio Module]

    Note Wire the meter’s ground terminal G to switchgear earth ground. Do not use metal door hinges as a ground path Step 5: Adding the Basic Module DIO module] Fig 1.22 Adding the Basic Module Caution When the basic module[DIO module] is not added or detected, SETUP LED blinks. Page 34...

  • Page 35: Step 6: Wiring The Basic Module

    Step 6: Wiring the Basic Module DIO Module The Accura 3500S is provided with the DIO module as the basic module. Fig 1.23 DIO Module NC means “No Connection”. 8 Digital Input Channels Ch 1 Ch 2 Ch 3 Ch 4...

  • Page 36: Fig 1.24 Digital Inputs

    Fig 1.24 Digital Inputs Caution Applying the external voltage to digital inputs causes damage to the meter because DC 8V is internally applied to dry contacts. 2 Digital Output Channels Ch 1 Ch 2 Pin name Ground and DO are different grounds according to each channel. Item Description Connector...

  • Page 37: Fig 1.25 Dc Relay Application

    Note Refer to “module mode” for selecting Latch or Pulse. Fig 1.25 DC Relay Application Fig 1.26 AC Relay Application Note Use Clamp Diode or ZNB in order not to apply more than 350V peak to digital output. Caution Use an external relay in order to control more than the maximum load, AD/DC 400V 350mA, of digital output.

  • Page 38: Step 7: Wiring The Power Supply And Ground Terminal Of The Basic Module

    Step 7: Wiring the Power Supply and Ground Terminal of the Basic Module Fig 1.27 Wiring of Power Supply and Ground Terminal of the Basic Module Power Supply Item Description Pin name PP[+/L], PN[-/N] Connector Screw terminal[Pluggable] Wire spec 1.25 to 3.5 mm [ 24 to 14 AWG] Ratings AC 85 - 265V, 50/60Hz -, DC 100 - 300V...

  • Page 39: Ground Terminal

    Ground Terminal Item Description Pin name Connector Screw Terminal[Pluggable] Wire spec 2.1 to 3.5 mm [ 14 to 12 AWG] Note Wire the meter’s ground terminal G to switchgear earth ground. Do not use metal door hinges as a ground path Page 39...

  • Page 40: Step 8: Adding The Expansion Module

    Step 8: Adding the Expansion Module Fig 1.28 Adding the Expansion Module Caution When an expansion module is added, be sure to manually set the module type as one of DI, DO, AI, and AO modules in a menu item[refer to expansion module configuration] of system mode. When the expansion module configured is not added or detected, SETUP LED blinks.

  • Page 41: Step 9: Wiring The Expansion Module

    Step 9: Wiring the Expansion Module Only one of four modules[DI, DO, AI, AO] can be chosen as an option when ordering the product. DI Module Fig 1.29 DI Module NC means “No Connection”. 12 Digital Input Channels Ch 1 Ch 2 Ch 3 Ch 4...

  • Page 42: Fig 1.30 Digital Input

    Item Description Connector Screw Terminal[Pluggable] Application Dry contact Wire spec 1.25 to 3.5 mm [ 24 to 14 AWG] Min Pulse Width 10 ms Fig 1.30 Digital Input Caution Applying the external voltage to digital inputs causes damage to the meter because DC 8V is internally applied to dry contacts.

  • Page 43: Do Module

    DO Module Fig 1.31 DO Module NC means “No Connection”. 4 Digital Output Channels Ch 1 Ch 2 Ch 3 Ch 4 Pin name Ground , DO , DO , and DO are different grounds according to each channel. Item Description Connector Screw Terminal[Pluggable]...

  • Page 44: Fig 1.32 Dc Relay Application

    Fig 1.32 DC Relay Application Fig 1.33 AC Relay Application Note Use Clamp Diode or ZNB in order not to apply more than 350V peak to digital output. Caution Use external relay in order to control more than the maximum load, AD/DC 400V 350mA, of digital output.

  • Page 45: Ai Module

    AI Module Fig 1.34 AI Module NC means “No Connection”. 6 Analog Input Channels Ch 1 Ch 2 Ch 3 Ch 4 Ch 5 Ch 6 Pin name Ground , and are different grounds according to each channel. Item Description Connector Screw terminal[Pluggable] Wire spec...

  • Page 46: Ao Module

    AO Module Fig 1.36 AO Module NC means “No Connection”. 6 Analog Output Channels Ch 1 Ch 2 Ch 3 Ch 4 Ch 5 Ch 6 Pin name Ground ,and are different grounds according to each channel. Item Description Connector Screw terminal[Pluggable] Wire spec 1.25 to 3.5 mm...

  • Page 47: Step 10: Wiring The Power Supply And Ground Terminal Of The Expansion Module

    Step 10: Wiring the Power Supply and Ground Terminal of the Expansion Module Fig 1.38 Wiring of Power Supply and Ground Terminal of the Expansion Module Power Supply Item Description Pin name PP[+/L], PN[-/N] Connector Screw terminal[Pluggable] Wire spec 1.25 to 3.5 mm [ 24 to 14 AWG] Ratings AC 85 - 265V, 50/60Hz -, DC 100 - 300V...

  • Page 48: Ground Terminal

    Ground Terminal Item Description Pin name Connector Screw Terminal[Pluggable] Wire spec 2.1 to 3.5 mm [ 14 to 12 AWG] Note Wire the meter’s ground terminal G to switchgear earth ground. Do not use metal door hinges as a ground path Page 48...

  • Page 49: Step 11: Powering Up The Meter

    Step 11: Powering Up the Meter Close the PT fuses( or direct voltage input fuses). Open the CT shorting blocks. Apply power to the meter. Page 49...

  • Page 50: Chapter 3 Meter Operation/Setup

    Chapter 3 Meter Operation/Setup Each of these functions can be accomplished by pressing the Menu, Up, Down, and Enter buttons on the front panel. Item Description Display mode View parameter measurements Setup mode Configure parameters[wiring, communication, etc.] Reset mode Reset energy, demand, maximum, and minimum values .. System mode View meter system information[meter option, firmware version].

  • Page 51: Display Mode

    Display Mode In Display mode, you can view values from these measurement groups. Fig 2.1 Measurement Group A, B Fig 2.2 Measurement Group C Fig 2.3 Measurement Group D † Measurement group C, D automatically returns to A, B after 30 seconds when “group auto-return” menu item of system mode is on[default].

  • Page 52: Fig 2.4 X1000, X10 Led

    VL-N, VL-L LED When V ] LED is lit, first row LED Digit shows phase voltage[line to line voltage]. x1000 LED, x10 LED When the “x1000” LED is lit, multiply the displayed value by 1000 for an actual value. When the “x10” LED is lit, multiply the displayed value by 10 for an actual value. Fig 2.4 x1000, x10 LED Moving between Parameters in Each Group Button...
  • Page 53 Parameter Display in the Following Order In Group A ◼ Three phase 4 wires Order Parameter AVG/TOT † Line voltage average Current average Total kW ‡ Line voltage ab Current a kW a Line voltage bc Current b kW b Line voltage ca Current c kW c...
  • Page 54 Voltage a Current a kW a † ‡ AVG/TOT means Average/Total. Total kW[phase a] Parameter Display in the Following Order In Group B Order Parameter † Active power[5 digit] kVAR Reactive power ‡ Power factor frequency † Decimal point is moved according to “energy type selection” menu item of system mode, and when the “x10” ‡...
  • Page 55 Parameter Display in the Following Order In Group D ◼ Three phase 4 wires Order Parameter † ‡ AVG/TOT Line voltage average maximum Current average maximum Total kW maximum Line voltage ab maximum Current a maximum kW a maximum Line voltage bc maximum Current b maximum kW b maximum Line voltage ca maximum...
  • Page 56 Current b demand Current c demand † ‡ AVG/TOT Total kW demand DMD, MAX Current a peak demand DMD, MAX Current b peak demand DMD, MAX Current c peak demand † ‡ DMD, MAX AVG/TOT Total kW peak demand Voltage ab THD Current a THD Voltage bc THD Current b THD...
  • Page 57 ‡ AVG/TOT † Total kW demand DMD, MAX Current a peak demand ‡ DMD, MAX AVG/TOT † Total kW peak demand Voltage a THD Current a THD † ‡ AVG/TOT means Average/Total. Total kW[phase a] Page 57...

  • Page 58: Setup Mode

    Setup Mode In Setup mode, You can set up menus, such as PT/CT ratio, wiring, and communication after mounting the meter. Button Functions in Setup Mode Button Function Enter setup mode by pressing the Up and Down buttons at the same time.
  • Page 59 Wiring mode Single phase 2 wires Single phase 3 wires Three phase 3 wires, Open Delta √ Three phase 4 wires Comm address 1 - 247 √ Protocol Modbus RTU Rootech † Speed[bps] 1200bps 2400bps 4800bps √ 9600bps 19200bps 38400bps ‡...

  • Page 60: Reset Mode

    Reset Mode In Reset Mode, you can reset Energy, Demand, and the Maximum/minimum values. Button Functions in Reset Mode Button Function Enter reset mode by pressing the Down and Enter buttons at the same time. Move to the previous menu screen. Move to the next menu screen.

  • Page 61: System Mode

    System Mode You can view system information, such as product number, version, demand time, frequency selection, and etc. Button Functions in System Mode Button Function Enter System Mode Move to the previous menu screen. Move to the next menu screen. Enter system edit mode to configure the displayed menu value.
  • Page 62 Menu Items Order Menu Item Range Default Demand time 1 - 60 Frequency 50Hz, 60Hz Extension module configuration No module √ DI module DO module AI module AO module √ Reactive power calculation Method 1 Method 2 † Group auto-return √...

  • Page 63: Reactive Power Calculation

    Reactive Power Calculation Rootech supports two methods for accurate calculation of reactive power. Method 1: General Calculation Method 1 is used to obtain reactive power, and apparent power by using calculation of vector apparent power.  Page 63...
  • Page 64 Fig 2.5 P , Q[according to general calculation] Note When phase difference between voltage and current is within 90 degree of lead and lag, power factor is positive. However, when phase difference is more than 90 degree[miswiring, regeneration], power factor and active power are negative. Method 2: Calculation of Harmonics Method 2 is used to obtain reactive power from apparent and active power, and the overall apparent power by using calculation of vector apparent power.
  • Page 65 Note P can be a positive or negative value, while Q is always a negative value. Page 65...

  • Page 66: Module Mode

    Module Mode Module mode has both display and setup menus. In module display menu You can view information of module and its channels, and in module setup menu configure channels of module. Module Display Menu Button Functions in Module Mode Button Function Enter module mode.

  • Page 67: Fig 2.6 Dio Module Channel Information

    Fig 2.6 DIO module channel information Fig 2.7 DI module channel information Fig 2.8 DO module channel information Fig 2.9 AI module channel information † Fig 2.10 AO module channel information † † When AI or AO module is added on the meter, the channel information of the module is not displayed on the meter, but available only on RS485 or IrDA[with PDA].

  • Page 68: Module Setup Menu

    Module Setup Menu Button Functions in Module Mode Button Function Enter module mode by pressing the Up and Down buttons at the same time. Move to the previous menu screen. Move to the next menu screen. Enter module edit mode to configure the displayed menu value. †...
  • Page 69 Note In module edit mode, pressing button exits system edit mode and moves to display mode, without saving the changed value of menu item. Page 69...
  • Page 70 Menu Items Order Menu Item Range DIO module digital output channel 1 Refer to Fig 2.11 Digital output type Latch Pulse Pulse width time 0.1 - 10.0s DIO module digital output channel 2 Refer to Fig 2.12 Digital output type Latch Pulse Pulse width time...

  • Page 71: Fig 2.11 Dio Module Digital Output Channel 1 Setup

    Fig 2.11 DIO module digital output channel 1 setup Fig 2.12 DIO module digital output channel 2 setup Fig 2.13 DO module digital output channel 1 setup Fig 2.14 DO module digital output channel 2 setup † † Fig 2.15 DO †...

  • Page 72: Appendix A Specifications

    Appendix A Specifications Voltage Input Rating 0 to 600V 3 to L-L, 0 to 457V 3 to L-N Use PTs for voltages over 457V line to line in three phase 3 wire open delta direct connection mode. Calibration 60 to 220V(per phase) Wiring Mode 1P2W, 1P3W, 3P3W, 3P4W Burden...

  • Page 73: Appendix B Standard Compliance

    B Standard Compliance ppendix Accuracy IEC 62053-22 Class 0.5S Safety UL 61010-2, 2 edition(IEC61010) Electrostatic Discharge(ESD) IEC 61326-1(IEC 61000-4-2) EM Field IEC 61326-1(IEC 61000-4-3) Electric Fast Transient IEC 61326-1(IEC 61000-4-4) Surge Immunity IEC 61326-1(IEC 61000-4-5) Conducted Radio Frequency Immunity IEC 61326-1(IEC 61000-4-6) Rated Power Frequency Magnetic Field IEC 61326-1(IEC 61000-4-8) IEC 61326-1(IEC 61000-4-11)

  • Page 74: Appendix C Test Report

    Measuring Test IEC62053-22, Electricity Meter Equipment: active energy for Class 0.5S Current range Power factor Class 0.2S/ 0.5S Accura 3500S 0.05A < I < 0.25A ± 0.4%/ ± 1.0% ± 0.4% 0.25A < I < 10.0A ± 0.2%/ ± 0.5% ±...

  • Page 75: Reliability Test

    Class 0.5S means IEC62053-22 Class 0.5S. It is available only RS485 communication. Power and power factor values appear as zero if the voltage or current value is less than the pickup value. True RMS Accuracy Accura 3500S Harmonic Voltage Current ±1.0% ±1.0% ±1.0%...
  • Page 76 Accura 2300/2350, Accura 2300S/2350, Accura 2500/2550, Accura 2700/2750, Accura 3000,Accura 3300E, Accura Page 76 3300S/3300, Accura 3500S/3500, Accura 3550S/3550, Accura 3700, Accura 5500, and Accura 7500 are trademarks of Rootech Inc. Contact us for detailed product specifications and ordering information. Information contained herein is subject...

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