YOKOGAWA wt3000 User Manual

x IM 760301-01
Contents
Checking the Contents of the Package ...........................................................................................ii
Safety Precautions .........................................................................................................................vi
Conventions Used in This Manual................................................................................................ viii
Flow of Operation ...........................................................................................................................ix
Chapter 1 Names and Functions of Parts
1.1 Front Panel, Rear Panel, and Top Panel ......................................................................... 1-1
1.2 Setup Menu Display Key and Execution Key ................................................................... 1-3
1.3 Display Screen ............................................................................................................... 1-10
Chapter 2 Functional Description
2.1 System Configuration and Block Diagram ....................................................................... 2-1
2.2 Measurement Modes and Measurement Functions ......................................................... 2-3
2.3 Measurement Conditions ................................................................................................. 2-9
2.4 Power Measurement ...................................................................................................... 2-15
2.5 Computation ................................................................................................................... 2-17
2.6 Integration ...................................................................................................................... 2-21
2.7 Waveform Display .......................................................................................................... 2-24
2.8 Trend, Bar Graph, and Vector Displays ......................................................................... 2-31
2.9 Waveform Computation and FFT ................................................................................... 2-33
2.10 Voltage Fluctuation and Flicker and Cycle-by-Cycle Measurements............................. 2-34
2.11 Saving and Loading Data and Other Functions ............................................................. 2-35
Chapter 3 Before Starting Measurements
3.1 Handling Precautions ....................................................................................................... 3-1
3.2 Installing the Instrument ................................................................................................... 3-2
3.3 Connecting the Power Supply .......................................................................................... 3-4
3.4 Turning ON/OFF the Power Switch ................................................................................. 3-5
3.5 Wiring Precautions ........................................................................................................... 3-7
3.6 Assembling the Adapter to Be Connected to the Voltage Input Terminal ...................... 3-10
3.7 Wiring for Making Accurate Measurements ................................................................... 3-12
3.8 Guide for Selecting the Method Used to Measure the Power ........................................ 3-13
3.9 Wiring the Circuit under Measurement for Direct Input .................................................. 3-14
3.10 Wiring the Circuit under Measurement When Using the Current Sensor ...................... 3-17
3.11 Wiring the Circuit under Measurement When Using the VT/CT .................................... 3-21
3.12 Setting the Date/Time .................................................................................................... 3-24
3.13 Initializing the Settings ................................................................................................... 3-26
3.14 Entering Values and Character Strings .......................................................................... 3-28
3.15 Entering Character Strings on the USB Keyboard ......................................................... 3-32
3.16 Switching the Measurement Mode and Display ............................................................. 3-34
3.17 Displaying the Setup Parameter List.............................................................................. 3-39
3.18 Selecting the Message Language.................................................................................. 3-41
3.19 Setting the USB Keyboard Language ............................................................................ 3-43

YOKOGAWA wt3000 Specifications

General

Frequency Range	DC, 0.1 Hz to 1 MHz
Number of Input Elements	Up to 4 elements
Harmonic Measurement	Up to 500th order
Interfaces	USB, Ethernet, RS-232
Sampling Rate	2 MS/s
Voltage Range	1.5 V to 1000 V
Display	8.4-inch LCD