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YOKOGAWA WT5000 User Manual

YOKOGAWA WT5000
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IM WT5000-02EN
4th Edition
Precision Power Analyzer
WT5000

Table of Contents

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YOKOGAWA WT5000 Specifications

General IconGeneral
Frequency RangeDC, 0.1 Hz to 1 MHz
Number of ChannelsUp to 7
InterfacesUSB, Ethernet, GP-IB, RS232
Sampling Rate10 MS/s
Harmonic AnalysisUp to the 500th order
WeightApproximately 15 kg
Display10.1-inch WXGA (1280 x 800) TFT LCD

Summary

Chapter 1 Setup Menu

1.1 Setting the Measurement Mode

Configures the instrument's measurement mode (Normal, IEC Harmonic, or Flicker).

1.2 Input Settings Overview

Provides an overview of input element and wiring unit settings for basic measurement conditions.

1.3 Computation and Output Settings Overview

Details settings for computing methods, harmonic measurement, displays, and data saving.

1.4 Utility Settings Overview

Covers system settings including date/time, language, LCD, and environment preferences.

1.5 Saving, Loading, and Initializing Setup Data

Explains procedures for saving, loading, and initializing instrument setup configurations.

1.6 Current Sensor Setup Menu

Details how to display and configure current sensor settings.

Chapter 2 Setting Basic Measurement Conditions

2.1 Setting the Wiring System

Configures the wiring system (e.g., 1P2W, 3P3W) for input elements.

2.2 Setting the Voltage Range and Current Range

Sets the voltage and current ranges for each input element, including auto and fixed ranges.

2.3 Configuring the Current Sensor

Sets up external current sensors, including ON/OFF, conversion ratio, and display format.

2.4 Setting the Voltage Transformer (VT) and Current Transformer (CT) Ratios

Configures VT and CT ratios for scaling measurements accurately.

2.5 Setting the Valid Measurement Range

Defines valid measurement ranges for voltage and current to prevent over-range errors.

2.6 Setting the Sensor Correction

Applies sensor correction for amplitude and phase to improve measurement accuracy.

2.7 Setting the Line Filter and Frequency Filter

Configures line and frequency filters (e.g., HFR, AAF, DLF) to reduce noise.

2.8 Set the Measurement Period

Sets the measurement period and sync source for accurate data acquisition.

2.9 Setting the Crest Factor

Configures the crest factor settings (CF3, CF6, CF6A) for waveform analysis.

2.10 Setting the Data Update Interval

Adjusts the data update interval and averaging settings for display refresh rates.

2.11 Setting the Efficiency Equation

Defines equations for calculating motor efficiency (η1, η2) and total efficiency.

2.12 Setting the Delta Computation

Configures delta computation settings (type, mode) for three-phase measurements.

2.13 Setting Averaging

Sets averaging type and count to reduce measurement noise and improve stability.

2.14 Master/slave Synchronous Measurement

Configures master/slave settings for synchronous measurement operations.

Chapter 3 Power Display (Numeric Display)

3.1 Setting the Display Format

Customizes screen display formats, including numeric, graph, and custom screen configurations.

3.2 Displaying the Voltage, Current, Active Power, and Power Factor

Shows numerical measurements of voltage, current, active power, and power factor.

3.3 Displaying Apparent Power, Reactive Power, and Corrected Power

Displays calculated apparent, reactive, and corrected power values based on defined equations.

3.4 Displaying the Phase Difference And Frequency (Voltage and Current)

Shows phase difference and frequency measurements for voltage and current signals.

3.5 Displaying Computed Values (Values and Events)

Displays results from user-defined functions and events for advanced analysis.

3.6 Holding the Maximum Values

Captures and displays the maximum measured values for voltage, current, and power.

3.7 User Display

Allows custom screen configuration by setting backgrounds and numeric data boxes.

3.8 Custom Display

Registers and selects up to five custom screen configurations for quick access.

Chapter 4 Integrated Value Measurement (watt hours and ampere hours)

4.1 Setting Integration Conditions

Configures integration settings like mode, timer, and scheduled times for energy measurements.

4.2 Displaying Integrated Values (numeric display)

Shows calculated integrated values for watt hours and ampere hours numerically.

Chapter 5 Harmonic Measurement

5.1 Setting Harmonic Measurement Conditions

Sets conditions for IEC harmonic measurements, including FFT points and harmonic orders.

5.2 Displaying Harmonic Measurements (numeric display)

Displays harmonic measurements for voltage, current, power, and power factor numerically.

Chapter 6 Graph Display

6.1 Setting the Display Format

Configures graph display types (Wave, Trend, Bar, Vector) and screen divisions.

6.2 Waveform Display

Displays voltage and current waveforms, allowing zoom and position adjustments.

6.3 Trend display

Shows trends of voltage and current over time, with adjustable time scales.

6.4 Bar Graph Display

Visualizes harmonic orders and magnitudes using bar graphs for analysis.

6.5 Vector Display

Illustrates phase differences and magnitude relationships using vector diagrams.

Chapter 7 Storing Numeric Data

7.1 Setting the Storage Operation

Configures storage operation modes (Manual, Real Time, Event) and storage count.

7.2 Setting Stored Items

Selects specific numeric data items to be stored, including voltage, current, and harmonics.

7.3 Setting the Data Storage Destination

Specifies the save destination (User, USB, Network) and file naming conventions.

7.4 Starting (Rec), Pausing (Pause), and Ending (End) Storage

Manages the data storage process by starting, pausing, and ending recording.

Chapter 8 Saving Numeric Data, Waveform Data, and Screen Images

8.1 Connecting a USB Memory Device

Explains how to connect USB memory devices for data saving and loading.

8.2 Setting the Save Destination for Numeric Data, Waveform Data, and Screen Images

Configures save conditions, including data types, file naming, and comments.

8.3 Setting the Numeric Data Items to Save

Selects which numeric data items (voltage, current, power, etc.) to save.

8.4 Setting the Format of Saved Screen Images

Defines the format (BMP, PNG, JPEG) and color settings for saved screen images.

8.5 Saving Numeric Data, Waveform Data, and Screen Images

Initiates the saving process for selected data types and screen images.

8.6 File Operations

Provides functions for managing files and folders in the file list.

Chapter 9 Motor Evaluation and Auxiliary Input (Option)

9.1 Configuring Motor Evaluation and Auxiliary Input Settings

Sets up motor evaluation parameters like speed, torque, and efficiency calculations.

9.2 Displaying the Motor Evaluation (numeric display)

Shows motor evaluation results numerically, including speed, torque, and efficiency.

Chapter 10 Holding Measured Values and Performing Single Measurements

10.1 Holding Measured Values

Freezes the current measurement values on the screen for later review.

10.2 Single Measurement

Performs a single measurement and holds the value, useful during dynamic conditions.

Chapter 11 Null Feature (DC offset cancelation) and Zero-Level Compensation (Cal)

11.1 Configuring, Enabling, and Disabling the Null Feature

Manages the Null feature to cancel DC offset for accurate measurements.

11.2 Zero-Level Compensation (Cal)

Executes zero-level compensation to adjust for instrument drift and improve accuracy.

Chapter 12 Cursor Measurement

12.1 Cursor Measurement on Waveforms

Uses cursors to measure values at specific points on waveform displays.

12.2 Cursor Measurement on Trends

Applies cursors to trend graphs to measure values at specific time points.

12.3 Cursor Measurement on Bar Graphs

Uses cursors to identify harmonic orders and values on bar graph displays.

Chapter 13 Performing IEC Harmonic Measurements (Option)

13.1 Setting IEC Harmonic Measurement Conditions

Configures parameters for IEC harmonic measurements according to IEC 61000-4-7 standard.

Chapter 14 IEC Voltage Fluctuation/Flicker Measurement (Option)

14.1 Configuring IEC Voltage Fluctuation/Flicker Measurements

Sets conditions for IEC voltage fluctuation and flicker measurements.

14.2 Executing IEC Voltage Fluctuation/Flicker Measurements

Performs voltage fluctuation and flicker measurements, including normal and dmax modes.

Chapter 15 Ethernet Communication

15.1 Connecting the Instrument to a Network

Details how to connect the instrument to a network using Ethernet interface.

15.2 Configuring the TCP/IP Settings

Sets up TCP/IP parameters, including IP address, subnet mask, and DNS settings.

15.3 Accessing the Instrument from a PC (FTP Server)

Explains how to access instrument files via FTP server using a PC.

15.4 Web Server Feature

Enables access to instrument functions and data through a web browser.

15.5 Connecting to a Network Drive

Configures connection to network drives for centralized data storage.

15.6 Setting the Date and Time via SNTP

Synchronizes the instrument's clock with an SNTP server for accurate timekeeping.

Chapter 16 Utility

16.1 Remote Control

Configures remote control settings for network, GP-IB, and USB interfaces.

16.2 Configuring the D/A Output (option)

Sets up D/A output channels for analog signal output of measurement data.

16.3 Configuring the IEEE 1588 Time Synchronization

Sets up IEEE 1588 time synchronization for precise network time management.

16.4 Setting the Message, Menu, and USB Keyboard Languages

Configures display languages for messages, menus, and USB keyboard input.

16.5 Setting the Screen Brightness and Turning the Screen Off

Adjusts LCD brightness and configures automatic screen turn-off settings.

16.6 Environment Settings (Preference)

Sets environmental preferences like frequency display, decimal point, and rounding.

16.7 Self-Test

Performs self-tests on memory and front panel keys for instrument diagnostics.

16.8 Displaying the Message Log

Accesses and displays system messages and error logs for troubleshooting.

16.9 Viewing the Instrument Information and Current Sensor Status

Displays instrument details, firmware versions, and current sensor statuses.

16.10 Locking the Touch Panel and Front Panel Operations

Locks touch panel and front panel keys to prevent accidental operation.

Appendix 1 Messages and Corrective Actions

Warning Messages (1 to 99)

Lists warning messages and their corresponding corrective actions or relevant sections.

Setup Error Messages (500 to 899)

Details setup-related error messages and their troubleshooting guidance.

System Error Messages (900 to 999)

Lists system error messages and the required maintenance or corrective actions.

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