ROOTECH ACCURA 3500 User Manual
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ROOTECH ACCURA 3500 User Manual

High accuracy digital power meter added with extension modules.
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ACCURA 3500
High Accuracy Digital Power Meter
Added with Extension modules
Suits your various applications
User Guide[English]
Rev 1.5

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Summary of Contents for ROOTECH ACCURA 3500

  • Page 1 ACCURA 3500 High Accuracy Digital Power Meter Added with Extension modules Suits your various applications User Guide[English] Rev 1.5...
  • Page 2 Page 2...
  • Page 3 Indicates alternative voltage or current. Indicates direct voltage or current. Installation Considerations Installation and operation of Accura 3500 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 3500 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 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 3500 User’s Guide have been released. Revision # Revision date Description Firmware version Revision 1.0 2006. 06. 30 Initial draft Revision 1.1 2007. 04. 24 Adding a menu item of extension module configuration 1.22...

  • Page 9: Table Of Contents

    Contents Chapter 1 Introduction ........................14 Overview ............................14 Power Measurements, Digital/Analog Input and Output Integration .......... 14 Accuracy, Power Quality ......................14 CE/UL Safety and Reliability ....................14 Easy Adding of Modules ......................14 Communication[IrDA and RS485] ................... 15 Features ............................
  • Page 10 Direct Diagram Using No PTs ....................29 Step 3: Wire the RS485 Communication ..................32 Step 4: Wire the Power Supply and Ground Terminal ............... 33 Power Supply.......................... 33 Ground Terminal ........................33 Step 5: Add a Basic Module[DIO module] ..................34 Step 6: Wire a Basic Module ......................
  • Page 11 APPENDIX D Order Information ..................... 76 INDEX............................77 Page 11...
  • Page 12 Figures Fig 1.1 Accura Handheld PC Software ..................15 Fig 2.1 Front Side ........................21 Fig 2.2 Rear Side ........................21 Fig 2.3 Basic Module[DIO Module] Rear Side ................21 Fig 2.4 Front View ........................22 Fig 2.5 Rear View ........................22 Fig 2.6 Side View ........................
  • Page 13 Fig 2.33 AC Relay application ....................41 Fig 2.34 AI Module ........................ 42 Fig 2.35 Analog Input......................42 Fig 2.36 AO Module ......................43 Fig 2.37 Analog Output ......................43 Fig 2.38 A4P2 Module ......................44 Fig 2.39 A2P4 Module ......................44 Fig 2.40 A4P2/ A2P4 Module Analog Output ................

  • Page 14: Chapter 1 Introduction

    Easy adding of modules to rear side of meter provides customized extension of function to flexibly meet a variety of applications. Accura 3500 has a basic module, called DIO module, and an extension module, one of digital input, digital output, analog input, and analog output modules.

  • Page 15: Communication[Irda And Rs485]

    Rootech provides ‘Accura Netbook 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 Handheld PC Software...

  • Page 16: Features

    Features Measurement  64 Sampling/Cycle True RMS  IEC 62053-22 Class 0.5S  50, 60Hz  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]  Phase voltage, line to line voltage, current ...

  • Page 17: Communication

    Communication RS485 Port[rear]  Modbus RTU Protocol Baudrate: 1,200 ~ 57,600bps IrDA Port[front]  IrDA Communication  Harmonic graph  Vector diagram  Demand trend  Oscilloscope  Module status/operation Power Supply AC 85 ~ 265V, 50/60Hz  DC 100 ~ 300V ...

  • Page 18: Applications

    3500 easily replaces the existing DDC panel, building the optimal IBS system. Compatibility with Analog Meters Accura 3500 mounts directly in ANSI C39.1[4” Round] or DIN 96. this is perfect for new installations and for existing panels. In new installations, simply use existing DIN or ANSI punches.

  • Page 19: Parameters

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

  • Page 20: Chapter 2 Mounting

    Chapter 2 Mounting Environmental Conditions The Accura 3500 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 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. Danger Power up after the voltage and current wiring is completed. Meter Overview Fig 2.1 Front Side Fig 2.2 Rear Side Fig 2.3 Basic Module[DIO Module] Rear Side Page 21...

  • Page 22: Meter Dimensions

    Meter Dimensions Fig 2.4 Front View Fig 2.5 Rear View Fig 2.7 Side View[one extension module can be added as Fig 2.6 Side View option when ordering] 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] Fig 2.8 ANSI 4” Fig 2.9 DIN96 Note The meter is mounted on switchgear boards (metal cabinet) in electrical facilities. Page 23...

  • Page 24: Step 2: Voltage And Current Inputs

    Step 2: Voltage and Current Inputs Fig 2.10 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 25: 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 26: 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 2.11 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 27: Fig 2.12 Three Phase 3 Wire Open Delta Using 2Cts, Wiring Mode = 3P3O

    Fig 2.12 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 2.13 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 28: Fig 2.14 Three Phase 4 Wires Using 3 Pts And 3 Cts, Wiring Mode = 3P4U

    Fig 2.14 Three Phase 4 Wires Using 3 PTs and 3 CTs, Wiring Mode = 3P4U Page 28...

  • Page 29: 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 2.15 Single Phase 2 Wire Direct , Wiring Mode = 1P2U Warning In single phase 2 wire direct, use PTs for voltages over 457V.

  • Page 30: Fig 2.16 Single Phase 3 Wire Direct Using 2 Cts, Wiring Mode = 1P3U

    Fig 2.16 Single Phase 3 Wire Direct Using 2 CTs, Wiring Mode = 1P3U Warning In single phase 3 wire direct, use PTs for voltages over 457V. be sure to use V , 1S, 1L, 3S, 3L terminals as the above. Fig 2.17 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 31: Fig 2.18 Three Phase 3 Wire Open Delta Direct Using 3 Cts, Wiring Mode = 3P3O

    Fig 2.18 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 32: Step 3: Wire The Rs485 Communication

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

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

    Step 4: Wire the Power Supply and Ground Terminal Fig 2.21 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 34: Step 5: Add A Basic Module[Dio Module]

    Step 5: Add a Basic Module[DIO module] Fig 2.22 Adding of a Basic Module Warning When a basic module[DIO module] is not added or recognized, SETUP LED blinks Page 34...

  • Page 35: Step 6: Wire A Basic Module

    Step 6: Wire a Basic Module DIO Module The Accura 3500 is provided with a DIO module as a basic module. Fig 2.23 DIO Module NC means “No Connection”. Digital Input 8 channels Ch 1 Ch 2 Ch 3 Ch 4...

  • Page 36: Fig 2.25 Dc Relay Application

    Warning Applying of a external voltage to digital input causes damage to meter because of internally DC Digital Output 2 channels Ch 1 Ch 2 Pin name Ground and DO are different grounds according to each channel. Connector Screw Terminal[Pluggable] Wire 1.25 to 3.5 mm2[ 24 to 14 AWG] Signal type...

  • Page 37: Step 7: Wire The Power Supply And Ground Terminal Of A Basic Module

    Step 7: Wire the Power Supply and Ground Terminal of a Basic module Fig 2.27 Wiring of Power Supply and Ground Terminal of a Basic module 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...

  • Page 38: Step 8: Add A Extension Module

    Step 8: Add a Extension Module Fig 2.28 adding of a extension module Warning When a extension module is added, be sure to manually configure extension module type as one of DI, DO, AI, AO, A4P2, or A2P4 modules in a menu item[refer to extension module configuration] of system mode.

  • Page 39: Step 9: Wire A Extension Module

    Step 9: Wire a Extension Module Only one of four modules[DI, DO, AI, AO] can be chosen as an option when ordering. DI Module Fig 2.29 DI Module NC means “No Connection”. Digital Input 12 Channels Ch 1 Ch 2 Ch 3 Ch 4 Ch 5...

  • Page 40: Do Module

    Fig 2.30 Digital Input Warning Applying of a external voltage to digital input causes damage to meter because of internally DC DO Module Fig 2.31 DO Module NC means “No Connection”. Digital Output 4 Channels Ch 1 Ch 2 Ch 3 Ch 4 Pin name Ground...

  • Page 41: Fig 2.32 Dc Relay Application

    Type Latch or Pulse Max Load AC/DC 400V 350mA[1000mA Peak] On command  “on” outputs Latch Off command  “off” outputs On command  “on” outputs during the Pulse width time and returns to “off” Pulse Off command  not available Note Refer to “module mode”...

  • Page 42: Ai Module

    AI Module Fig 2.34 AI Module NC means “No Connection”. Analog Input 6 Channels Ch 1 Ch 2 Ch 3 Ch 4 Ch 5 Ch 6 Pin name Ground , and are different grounds according to each channel. Connector Screw terminal[Pluggable] Wire 1.25 to 3.5 mm [ 24 to 14 AWG]...

  • Page 43: Ao Module

    AO Module Fig 2.36 AO Module NC means “No Connection”. Analog Output 6 Channels Ch 1 Ch 2 Ch 3 Ch 4 Ch 5 Ch 6 Pin name Ground ,and are different grounds according to each channel. Connector Screw terminal[Pluggable] Wire 1.25 to 3.5 mm [ 24 to 14 AWG]...

  • Page 44: A4P2/A2P4 Module

    A4P2/A2P4 Module Fig 2.38 A4P2 Module Fig 2.39 A2P4 Module NC means “No Connection”. Analog Output Channels A4P2 Module Ch 1 Ch 2 Ch 3 Ch 4 Pin name Ground A2P4 Module Ch 1 Ch 2 Pin name Ground are different grounds according to each channel. Connector Screw terminal[Pluggable] Wire...
  • Page 45 Warning When voltage drop exceeds 12V, 4 ~ 20mA current of analog output is not guaranteed. Pulse Output Channels A4P2 Module Ch 1 Ch 2 Pin name Ground A2P4 Module Ch 1 Ch 2 Ch 3 Ch 4 Pin name Ground are different grounds according to each channel.

  • Page 46: Step 10: Wire The Power Supply And Ground Terminal Of A Exension Module

    Step 10: Wire the Power Supply and Ground Terminal of a Exension module Fig 2.42 Wiring of Power Supply and Ground Terminal of a Extension module 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...

  • Page 47: Step 11: Power Up The Meter

    Step 11: Power Up the Meter Close the PT fuses( or direct voltage input fuses). Open the CT shorting blocks. Apply power to the meter. Page 47...

  • Page 48: 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. Display mode View parameter measurements Setup mode Configure parameters[wiring, communication, and etc.] Reset mode Reset energy, demand, maximum, and minimum. System mode View meter system information[meter option, firmware version].

  • Page 49: Display Mode

    Display Mode In Display mode, you can view values from these measurement groups. Fig 3.1 Measurement Groups Measurement Group Parameters Measured , kW, kVAR, kVA, PF FUND DMD, MAX, MIN kWh, kVARh, kVAh, Hz AVG LED When the “AVG” LED is lit, fourth row LED display shows the average value of A, B, C displays. TOT LED When the “TOT”...
  • Page 50 Button Function Sequentially selects measurement group. [Group A Group B Group C Group D] Move to the previous measurement group. Move to the next measurement group. Parameter displays in following order In Group A Order Parameter A, B, C Phase Average Total Phase voltage...
  • Page 51 kVAR DMD, MAX Max demand reactive power √ DMD, MAX Max demand apparent power √ Parameter displays in following order In Group C Order Parameter A, B, C Voltage THD √ Current THD √ Parameter displays in following order In Group D Order Parameter kWh rEc[Receive]...

  • Page 52: Setup Mode

    Setup Mode In Setup mode, You can setup 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. Move to the previous menu screen.
  • Page 53 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 RTM Modbus RTU Speed[bps] 1200bps 2400bps 4800bps 9600bps √ 19200bps 38400bps...

  • Page 54: Reset Mode

    Reset Mode In Reset Mode, you can perform a Energy reset, a Demand reset, or a Maximum/minimum reset. Energy Reset Initialize kWh, kVARh, kVAh Demand Reset Initialize all of Demand, Peak Demand Maximum/minimum Reset Initialize all of Maximum Button Functions in Reset Mode Button Function Enter reset mode by pressing the Down and Enter buttons at the...

  • Page 55: 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 56 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 A4P2 module A2P4 module Reactive power calculation Method 1 √ Method 2 Auto reset mode √...

  • Page 57: Reactive Calculation Method

    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 58 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 59: 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 60: Fig 3.3 Dio Module Channel Information

    Fig 3.3 DIO module channel information Fig 3.4 DI module channel information Fig 3.5 DO module channel information Fig 3.6 AI module channel information Fig 3.7 AO module channel information When AI or AO module is added on meter., the channel information of the module is not displayed on meter, but available only on RS485 or IrDA[with PDA].

  • Page 61: Fig 3.8 A4P2 Module Channel Information

    Fig 3.8 A4P2 module channel information † Fig 3.9 A2P4 module channel information † Page 61...

  • Page 62: 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 63: Fig 2.23 Dio Module

    DIO Module Menu Items Order Menu Item Range DIO module digital output channel 1 Fig 3.10 Digital output type Latch Pulse Pulse width time 0.1 ~ 10.0s DIO module digital output channel 2 Fig 3.11 Digital output type The same with channel 1 Pulse width time The same with channel 1 Only when DO module is added, menu is shown.

  • Page 64: Fig 3.10 Dio Module Digital Output Channel 1 Setup

    Fig 3.10 DIO module digital output channel 1 setup Fig 3.11 DIO module digital output channel 2 setup Fig 3.13 DO module digital output channel 2 setup Fig 3.12 DO module digital output channel 1 setup Fig 3.14 DO module digital output channel 3 setup Fig 3.15 DO module digital output channel 4 setup Only when DO module is added, channel setup is shown.
  • Page 65 A4P2 Module Menu Items order Menu Item Range Default A4P2 module analog output channel 1 Parameter selection Not selected Voltage a √ [Fig 3.16] Voltage b Voltage c Line Voltage ab Line Voltage ab Line Voltage ab Current a Current b Current c Total kW Frequency...
  • Page 66 Parameter selection The same with channel 1 Power factor √ Parameter high limit The same with channel 1 Parameter low limit The same with channel 1 Type The same with channel 1 A4P2 module pulse output channel 1 Parameter selection kWh received √...
  • Page 67  Analog output calculation The example of 4 ~ 20mA analog output by value of parameter selected is shown. Condition: high limit[high] 457V, low limit[low] 0V, value of parameter[x] 380V × − − high Analog output[y]= 16 x (380-0)/ (457-0)+4 = 17.3mA ...
  • Page 68 Fig 3.16 A4P2 module analog output channel 1 Fig 3.17 A4P2 module pulse output channel 1 Page 68...
  • Page 69 A2P4 Module Menu Items order Menu Item Range Default A2P4 module analog output channel 1 Parameter selection The same with channel 1 of A4P2 module Voltage a √ [Fig 3.18] Parameter high limit The same with channel 1 of A4P2 module Parameter low limit The same with channel 1 of A4P2 module Type...
  • Page 70 A2P4 module pulse output channel 4 Parameter selection kWh received kWh delivered kVARh received kVARh delivered √ Scale 0.01 ~ 99999.99 [kWh or kVarh/pulse] Page 70...
  • Page 71 Fig 3.18 A2P4 module analog output channel 1 Fig 3.19 A2P4 module pulse output channel 1 Page 71...

  • Page 72: Appendix A Standard Specification

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

  • Page 73: 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 74: Appendix C Test Report

    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 3500 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 75: Reliability Test

    Class 0.5S means IEC62053-22 Class 0.5S. True RMS Accuracy Accura 3500 Harmonic Voltage Current ±0.3% ±0.3% ±0.3% ±0.3% ±0.3% ±0.3% ±0.3% ±0.3% ±0.3% ±0.3% ±0.3% ±0.3% * Voltage : 220V 50% harmonic analysis/ current : 5A 50% harmonic analysis Reliability Test...
  • Page 76 APPENDIX D Order Information Model Option[extension module] Explanation Accura 3500 Digital input 8 channels, digital output 2 channels Digital output 4 channels Analog input 6 channels Analog output 6 channels Analog output 4 channels A4P2 Pulse output 2 channels Analog output 2 channels...
  • Page 77 INDEX Ａ Ｆ AC Relay, 36, 41 Front Side, 21 Accura PDA, 15 Front View, 22 AI Module, 42, 44 ANSI 4”, 23 Ｍ AO Module, 43 Measurement, 16 Applications, 18 Meter Overview, 21 Assembly/Mounting, 20 Module Mode, 59 Mounting, 23 Ｂ...
  • Page 78 Wiring Diagram Using External PTs, 26 Ｗ Page 78...
  • Page 80 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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