Name: YOKOGAWA WT110
Brand: YOKOGAWA
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Yokogawa Electric Corporation

Digital Power Meter

IM253401-01E

3rd Edition

Foreword2
Checking the Contents of the Package3
- Optional Equipment4
- Standard Accessories4
Safety Precautions5
How to Use this Manual7
Conventions Used in this Manual8
- Table of Contents9
Chapter 1 What this Instrument Can Do13
- System Configuration and Block Diagram13
- Functions14
- Digital Numbers/Characters, and Initial Menus17
Chapter 2 Nomenclature, Keys and Displays19
- Front Panel, Rear Panel and Top View19
- Operation Keys and Function/Element Display20
- Displays in Case of Overrange/Error During Measurement22
Chapter 3 Before Operation23
- Usage Precautions23
- Installing the Instrument24
- Wiring Precautions26
- Wiring the Measurement Circuit27
- Wiring the Measurement Circuit When Using External PT/CT29
- Wiring the Measurement Circuit When Using the External Sensor31
- Connecting the Power Supply34
- Turning the Power ON/OFF35
- Selecting the Wiring Method (for WT130)37
- Improving the Measurement Accuracy38
Chapter 4 Setting Measurement Conditions39
- Selecting the Measurement Mode39
- Turning the Filter ON/OFF41
- Selecting the Measurement Range in Case of Direct Input42
- Setting the Scaling Value When External PT/CT Is Used44
- Selecting the Measurement Range and Setting the Scaling Value When External Sensor Is Used (Option)46
- Using the Averaging Function48
- Using the Four Arithmetical Operation Function (Applies to WT110/WT130 with ROM Version 2.01 or Later)50
- Computing the Crest Factor (Applies to WT110/WT130 with ROM Version 2.01 or Later)53
- Computing the Efficiency (Applies to WT130 with ROM Version 2.01 or Later)54
Chapter 5 Measuring/Displaying Voltage, Current, Active Power, Frequency56
- Measuring/Displaying Voltage, Current and Active Power56
- Measuring/Displaying Frequency58
- Measuring/Displaying Four Arithmetic Operation Value, Crest Factor and Peak Value59
- Computing/Displaying Apparent Power, Reactive Power and Power Factor60
- Computing/Displaying the Phase Angle61
Chapter 6 Computing/Displaying Apparent Power, Reactive Power, Power62
Chapter 7 Integration62
- Integrator Functions62
- Setting Integration Mode and Integration Timer65
- Displaying Integrated Values66
- Precautions Regarding Use of Integrator Function68
Chapter 8 Using the Harmonic Analysis Function (Optional)70
- Harmonic Analysis Function70
- Averaging Function71
- Setting the Element, PLL Source and Harmonic Distortion Method72
- Switching the Harmonic Analysis Function ON/OFF74
- Setting the Harmonic Order and Displaying the Results of Harmonic Analysis75
Chapter 9 Storing/Recalling78
- Storing/Recalling Measured Data78
- Storing/Recalling Set-Up Parameters81
- Remote Control and D/A Output Connector (Optional)83
Chapter 10 Using External In/Output84
- Remote Control (Optional)84
- D/A Output (Optional)85
- Comparator Function (Optional)89
- Setting the Comparator Mode (Optional)91
- Setting the Comparator Limit Values (Optional)92
- Comparator Display (Optional)96
- Turning the Comparator Function ON/OFF (Optional)98
- Outputting to an External Plotter/Printer99
Chapter 11 GP-IB Interface103
- Using the GP-IB Interface103
- Responses to Interface Messages104
- Status Byte Format (before the IEEE488.2-1987 Standard)105
- Parameters and Error Codes106
- Setting the Address/Addressable Mode111
- Setting the Output Items112
- Commands (before the IEEE488.2-1987 Standard)114
Chapter 12 RS-232-C Interface115
- Using the RS-232-C Interface115
- Connecting the Interface Cable116
- Setting the Mode, Handshaking Method, Data Format and Baud Rate118
- Format and Commands of Output Data (Brefore the IEEE488.2-1987 Standard)121
Chapter 13 Other Useful Functions122
- Back-Up of Set-Up Parameters122
- Initializing Set-Up Parameters123
Chapter 14 Adjustment, Calibration and Trouble-Shooting124
- Adjustments124
- Calibration127
- In Case of Malfunctioning133
- Error Codes and Corrective Actions134
- Replacing the Fuse (for WT130)136
Chapter 15 Specifications137
- Input137
- Measurement Functions137
- Frequency Measurement137
- Communication137
- Computing Functions138
- Display Functions138
- Integrator Functions138
- Internal Memory Function138
- D/A Converter (Optional)138
- External Input (Optional)139
- Comparator Output (Optional)139
- External Control and Input Signals (in Combination with the D/A Converter and Comparator Options)139
- General Specifications139
- Total Harmonic Analysis Function (Optional)139
- External Dimensions140
Appendix 1 Communication Commands156
Appendix157
- Symbols Used in Syntax Descriptions159
- Messages159
- Commands161
- Responses162
- Data162
- Synchronization with the Controller164
- Command List165
- Aoutput Group168
- Communicate Group169
- Configure Group171
- Display Group174
- Harmonics Group175
- Integrate Group176
- MATH Group177
- Measure Group178
- Recall Group184
- Relay Group185
- Sample Group187
- Status Group188
- Store Group189
- Common Command Group190
- Overview of the Status Report192
- Status Byte193
- Standard Event Register194
- Extended Event Register195
- Output Queue and Error Queue196

Brand	YOKOGAWA
Model	WT110
Category	Measuring Instruments
Language	English

YOKOGAWA WT110 User Manual

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