ROOTECH ACCURA 2500 User Manual
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ROOTECH ACCURA 2500 User Manual

High accuracy digital power meter
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ACCURA 2500
High Accuracy Digital Power Meter
Gives simple power measurements
User Guide[English]
Rev 1.3

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Summary of Contents for ROOTECH ACCURA 2500

  • Page 1 ACCURA 2500 High Accuracy Digital Power Meter Gives simple power measurements User Guide[English] Rev 1.3...
  • Page 2 Page 2...
  • Page 3 Indicates alternative voltage or current. Indicates direct voltage or current. Installation Considerations Installation and operation of Accura 2500 meter should be performed only by qualified, competent personnel that have appropriate training and experience with high voltage and current devices. Danger Failure to observe the following instructions may result in severe injury or death.
  • Page 4 Warning Observe the following instructions, or permanent damage to the meter may occur. Do not apply Accura 2500 to voltages and currents that exceed Input ratings of PT and  Limitation of Liability Rootech Inc. reserves the right to make changes in the device specifications shown in this User’s Guide without notice.
  • Page 5 Standard Compliance CE Approved MEASURING EQUIPMENT EN61326 and IEC61010 35DX E258934 KSQ ISO 9001:2009/ ISO 9001:2008 QMS-1347 Page 5...
  • Page 6 Rootech’s liability shall be limited to twice the amount of the relevant purchased product. Rootech shall not be liable for any claim- other than a claim solely for the breach of one of the Page 6...
  • Page 7 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.
  • Page 8 Revision History The following versions of the Accura 2500 User’s Guide have been released. Revision # Revision date Description Revision 1.0 2006. 06. 30 Initial draft Revision 1.1 2007. 07. 13 Mounting modified Revision 1.2 2009. 11. 26 Voltage input range modified Revision 1.3...

  • Page 9: Table Of Contents

    Contents Chapter 1 Introduction ......................12 Overview ..........................12 Power Measurements ..................... 12 Accuracy ........................12 CE/UL Safety and Reliability ................... 12 Display Easy to Read ...................... 12 Communication[IrDA] ....................12 Features ..........................14 Measurement ......................... 14 IrDA Communication ..................... 14 Communication ......................
  • Page 10 Step 4: Add a Cover/Power Up the Meter ................30 Add a Cover ........................30 Power Up the Meter ....................... 30 Chapter 3 Meter Operation/Setup ..................31 Display Mode ........................31 Setup Mode ........................... 35 Reset Mode..........................36 System Mode ......................... 37 Reactive Calculation Method ..................
  • Page 11 Figures Fig 1.1 Accura PDA Software ..................13 Fig 2.1 Front Side ......................18 Fig 2.2 Rear Side ......................18 Fig 2.3 Front View ......................19 Fig 2.4 Rear View ......................19 Fig 2.5 Side View ......................19 Fig 2.6 ANSI 4” ......................20 Fig 2.7 DIN96 ........................

  • Page 12: Chapter 1 Introduction

    This makes customers easily read voltage, current, power at the same time. Communication[IrDA] Accura 2500 has an optical IrDA port, allowing the device to be set up and programmed using a PDA. Just point at the meter with IrDA-equipped PDA, so customers can monitor measurements, harmonic graph, vector diagram, demand trend, and oscilloscope.

  • Page 13: Fig 1.1 Accura Pda Software

    Rootech provides ‘Accura PDA software” that allows users to simply point at the meter, configure it and poll readings. See the Accura 3500 Communication User’s Guide for details. Fig 1.1 Accura PDA Software Page 13...

  • Page 14: Features

    Features Measurement  64 Sampling/Cycle True RMS  IEC 62053-22 Class 0.5S  50, 60Hz  Phase voltage, line to line voltage, current  Power, energy[active], power factor, frequency  Fundamental component, True RMS of current  4 Quadrant Power ...

  • Page 15: Applications

    Power Quality using PDA Accura 2500 has an optical IrDA port, allowing the device to be set up and programmed using a PDA. Just point at the meter with IrDA-equipped PDA, so customers can monitor measurements, harmonic graph, vector diagram, demand trend, and oscilloscope.

  • Page 16: Parameters

    Parameters Realtime Average Total Maximum Minimum Phase voltage ■ ■ ■ ■ Line to line voltage ■ ■ ■ ■ Current ■ ■ ■ Power Active ■ ■ ■ Reactive ■ ■ ■ Apparent ■ ■ ■ Energy Active ■ ■...

  • Page 17: Chapter 2 Mounting

    Chapter 2 Mounting Environmental Conditions The Accura 2500 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 Items...

  • Page 18: 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. Danger Power up after the voltage and current wiring is completed. Meter Overview Fig 2.1 Front Side Fig 2.2 Rear Side Page 18...

  • Page 19: Meter Dimensions

    Meter Dimensions Fig 2.3 Front View Fig 2.4 Rear View Fig 2.5 Side View Page 19...

  • Page 20: Step 1: Mounting

    Step 1: Mounting Sequence Remove connector on the bottom of the meter. fit the meter into cutout[ANSI 4” or DIN96] Fig 2.6 ANSI 4” Fig 2.7 DIN96 Note The meter is mounted on switchgear boards (metal cabinet) in electrical facilities. Page 20...

  • Page 21: Step 2: Voltage And Current Inputs

    Step 2: Voltage and Current Inputs Fig 2.8 Voltage and Current Connector Voltage Input Pin name Connector Terminal block Wire 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 22: Current Input

    Current Input Pin name 1S, 2S, 3S, 1L, 2L, 3L Connector Terminal block[Busbar] Wire 2.1 to 6 mm [ 14 to 10 AWG] Ratings 5A nominal/ 10A full scale 3 ~ Burden Maximum 0.005A/phase @10A Compliance Pollution degree 2, Installation Category Ⅲ CT[Current Transformer] Compliance UL61010-1;...

  • Page 23: Wiring Diagram Using External Pts

    Wiring Diagram Using External PTs Danger 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 2.9 Single Phase 2 Wires, Wiring Mode = 1P2U Warning In single phase 2 wires, be sure to use V , 1S, 1L terminals as the above.

  • Page 24: Fig 2.10 Three Phase 3 Wire Open Delta Using 2Cts, Wiring Mode = 3P3O

    Fig 2.10 Three Phase 3 Wire Open Delta Using 2CTs, Wiring Mode = 3P3O Warning In three phase 3 wire open delta, be sure to connect V to V as the above. Fig 2.11 Three Phase 3 Wire Open Delta Using 3CTs, Wiring Mode = 3P3O Warning In three phase 3 wire open delta, be sure to connect V to V...

  • Page 25: Fig 2.12 Three Phase 4 Wires Using 3 Pts And 3 Cts, Wiring Mode = 3P4U

    Fig 2.12 Three Phase 4 Wires Using 3 PTs and 3 CTs, Wiring Mode = 3P4U Page 25...

  • Page 26: Direct Diagram Using No Pts

    Direct Diagram Using No PTs Danger 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 2.13 Single Phase 2 Wire Direct , Wiring Mode = 1P2U Warning In single phase 2 wires, be sure to use V , 1S, 1L terminals as the above.

  • Page 27: Fig 2.14 Single Phase 3 Wire Direct Using 2 Cts, Wiring Mode = 1P3U

    Fig 2.14 Single Phase 3 Wire Direct Using 2 CTs, Wiring Mode = 1P3U Warning In single phase 3 wires, be sure to use V , 1S, 1L, 3S, 3L terminals as the above. Fig 2.15 Three Phase 3 Wire Open Delta Direct, Wiring Mode = 3P3O Warning In three phase 3 wire open delta direct, use PTs for voltages over 457V [line to line].

  • Page 28: Fig 2.16 Three Phase 3 Wire Open Delta Direct Using 3 Cts, Wiring Mode = 3P3O

    Fig 2.16 Three Phase 3 Wire Open Delta Direct Using 3 CTs, Wiring Mode = 3P3O Warning In three phase 3 wire open delta direct, use PTs for voltages over 457V [line to line]. be sure to connect V to V as the above.

  • Page 29: Step 3: Wire The Power Supply And Ground Terminal

    Step 3: Wire the Power Supply and Ground Terminal Fig 2.18 Wiring of Power Supply and Ground Terminal Power Supply Pin name PP[+/L], PN[-/N] Connector Screw terminal[Pluggable] Wire 1.25 to 3.5 mm [ 24 to 14 AWG] Ratings AC 85 ~ 265V, 50/60Hz ~, DC 100 ~ 300V Compliance Pollution degree 2 Burden...

  • Page 30: Step 4: Add A Cover/Power Up The Meter

    Step 4: Add a Cover/Power Up the Meter Add a Cover Fig 2.19 Cover Power Up the Meter Close the PT fuses( or direct voltage input fuses). Open the CT shorting blocks. Apply power to the meter. Page 30...

  • Page 31: Chapter 3 Meter Operation/Setup

    Chapter 3 Meter Operation/Setup Each of these functions can be accomplished by pressing the VS, AS, and FS buttons on the front panel. Display mode View parameter measurements Setup mode Configure parameters Reset mode Reset energy, demand, maximum, and minimum. System mode View meter system information[meter option, firmware version].
  • Page 32 x1000 LED When the “x1000” LED of Grout A is lit, multiply the displayed value by 1000 for actual  value. When the “x1000” LED of Grout C is lit, multiply the displayed value by 1000 for actual  value in fourth LED display. Button Functions in Display Mode Button Function...
  • Page 33 Active power kVAR Reactive power Active energy Power factor Frequency Note Energy[kWh, kVARh, kVAh] is read by the total number which join first, second and third LED display together. Example] if first LED display = 1, second LED display = 1200, and third LED display = 1212, then actual value = 112001212.
  • Page 34 LED off B phase minimum current C phase minimum current LED off A phase minimum fundamental current LED on B phase minimum fundamental current LED on C phase minimum fundamental current LED on Page 34...

  • Page 35: Setup Mode

    Setup Mode In Setup mode, You can setup menus, such as PT/CT ratio, wiring, and etc. after mounting the meter. Button Functions in Setup Mode Button Function Enter setup mode by pressing the VS and AS buttons at the same time.

  • Page 36: Reset Mode

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

  • Page 37: 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 38: Reactive Calculation Method

    When operated in demo mode, SETUP LED blinks. Reactive Calculation Method 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 39 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 regarding 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 40: Appendix A Standard Specification

    APPENDIX A Standard Specification Voltage Input  0 ~ 600V 3 ~ L-L, 0 ~ 457V 3 ~ L-N [In three phase 3 wire open delta direct, use PTs for voltages over 457V line to line]  Calibration: 60 ~ 220V per phase ...

  • Page 41: Appendix B Standard Compliance

    APPENDIX B Standard Compliance Accuray  IEC62053-22 Class 0.5S Safety  UL61010-2, 2 edition[IEC61010]  IEC61326-1[IEC61000-4-2]: Electrostatic Discharge[ESD]  IEC61326-1[IEC61000-4-3]: EM Field  IEC61326-1[IEC61000-4-4]: Electric Fast Transient  IEC61326-1[IEC61000-4-5]: Surge Immunity  IEC61326-1[IEC61000-4-6]: Conducted RF Immunity  IEC61326-1[IEC61000-4-8]: Rated Power Frequency Magnetic Field ...

  • Page 42: Appendix C Test Report

    APPENDIX C Test Report Measurement Test IEC62053-22, Electricity Meter Equipment: active energy for Class 0.5S Current range Power factor Class 0.2S/ 0.5S Accura 2500 0.05A < I < 0.25A ±0.4%/ ±1.0% ±0.4% 0.25A < I < 10.0A ±0.2%/ ±0.5% ±0.2% 0.10A <...

  • Page 43: Reliability Test

    ±0.3% ±0.3% ±0.3% *Voltage : 220V 50% harmonic analysis/ current : 5A 50% harmonic analysis Reliability Test IEC61326, Electrical Equipment for Measurement, Control, and Laboratory- EMC Standard Limit Accura 2500 IEC61000-4-2 Electrostatic Discharge[ESD] 4kV/8kV contact/air 12kV/20kV IEC61000-4-3 EM Field 10V/m...

  • Page 44: Index

    INDEX Ａ Ｍ Accura PDA, 13 Measurement, 14 ANSI 4”, 20 Meter Overview, 18 Applications, 15 Mounting, 20 Assembly/Mounting, 17 Ｐ Ｂ Parameters, 16 Before You Begin, 18 Power Supply, 29 Ｃ Ｒ Communication, 14 Rear Side, 18 Current Input, 22 Rear View, 19 Reset Mode, 36 Ｄ...
  • Page 46 Tel. +82+31-695-7350 Fax. +82+31-695-7399 www.rootech.com ⓒ 2006 Rootech Inc. All Rights Reserved Accura EMeter, Accura 2300/2350, Accura 2500, Accura 3300S/3300, Accura 3500S/3500, Accura 3550S/3550, Accura 5500, Accura 7500 are trademarks of Rootech Inc. Contact rootech for detailed specifications and order information.

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