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21-7

IM WT18

1E-02EN

21.7 Carrying Out Self-Tests (Selftest)

This section explains the following settings for testing whether the memory and keys of this instrument

are functioning properly:

• Test item

• Memory test

• Key test

Operation keys, indicators, and keyboard

► “Self-Test (Selftest)” in the features guide

Selftest Menu

Press UTILITY and then the Selftest soft key to display the following menu.

Set the item to test (Memory, Key Board).

Executing the Memory Test

Set the item to test to Memory.

Executes the test

Default Chapter4
- Symbols and Notation Used in this Manual4
- Key Operation and Functions5
- Entering Values and Strings7
- Table of Contents9
Chapter 1 Basic Measurement Conditions12
- Configuring the Wiring System Settings12
- Setting the Voltage and Current Ranges13
- Setting the External Current Sensor Range (Option)15
- Setting the External Current Sensor Conversion Ratio (Option)16
- Setting the Display Format of the External Current Sensor Range (Option)17
- Setting the Scaling Feature When Using a VT or CT18
- Setting the Valid Measurement Range20
- Setting the Efficiency Equation23
- Turning the Independent Input Element Configuration on and off24
- Setting Delta Computation25
- Setting the Crest Factor26
- Setting Measurement Periods27
- Setting Line Filters28
- Setting Frequency Filters29
- Setting the Data Update Interval30
- Setting Averaging31
- Displaying the Menu for Configuring All Elements32
- Displaying the Setup Parameter List33
Chapter 2 Harmonic Measurement Conditions (Option)35
- Setting Harmonic Measurement Conditions35
Chapter 3 Motor Evaluation Conditions (Option)37
- Setting Motor Evaluation Conditions37
Chapter 4 Auxiliary Input Conditions (Option)39
- Setting Auxiliary Input Conditions39
Chapter 5 Holding Measured Values and Performing Single Measurements40
- Holding Measured Values40
- Performing Single Measurements41
Chapter 6 Power Measurement (Numeric Data Display)42
- Setting the Display Format42
- Switching the Displayed Page43
- Changing the Displayed Items on the 4 Items, 8 Items, and 16 Items Displays46
- Changing the Displayed Items on the Matrix Display47
- Changing the All Items Display50
- Changing the Harmonics List Display (Option)51
- Setting the Custom Display53
Chapter 7 Computations57
- Setting User-Defined Functions57
- Setting User-Defined Events58
- Setting Apparent Power, Reactive Power, and Corrected Power Equations59
- Setting the Sampling Frequency60
- Setting the Phase Difference Display Format61
- Setting Master and Slave Synchronized Measurement62
- Setting the Voltages or Currents Whose Frequencies will be Measured63
Chapter 8 Integrated Power (Watt Hour)64
- Setting Independent Integration64
- Setting Integration Conditions65
- Starting, Stopping, and Resetting Integration68
- Integration Resume Action at Power Failure Recovery69
Chapter 9 Waveform Display70
- Setting the Display Format70
- Turning the Display of Waveforms on and off and Setting the Vertical Zoom Factors and Vertical Positions72
Chapter 10 Trend Display73
- Setting the Display Format73
- Turning the Trend Display on and off and Setting the Measurement Functions to Display and the Vertical Scales75
Chapter 11 Bar Graph Display (Option)76
- Setting the Display Format76
- Setting the Measurement Function to Display and the Vertical Scale77
Chapter 12 Vector Display (Option)78
- Setting the Display Format78
- Setting the Element and Wiring Unit to Display and the Zoom Factor79
Chapter 13 Split Display80
- Configuring the Split Display80
Chapter 14 Cursor Measurements82
- Performing Cursor Measurements on Waveforms82
- Performing Cursor Measurements on Trends83
- Performing Cursor Measurements on Bar Graphs84
Chapter 15 High Speed Data Capturing85
- Setting the Number of Data Captures and Configuring the Capture Control Settings85
- Configuring the Save Conditions of Captured Numeric Data88
- Changing the Displayed Items for High Speed Data Capturing90
- Starting and Stopping High Speed Data Capturing93
Chapter 16 Storing Data95
- Configuring Storage Control95
- Setting the Numeric Data Items to Store98
- Configuring the Save Conditions of Stored Numeric Data99
- Starting, Stopping, and Resetting Storage100
Chapter 17 Saving and Loading Data102
- Connecting USB Memory Devices102
- Saving Setup Parameters104
- Saving Waveform Display Data106
- Saving Numeric Data107
- Loading Setup Parameters109
- File Operations110
Chapter 18 Saving Screen Images117
- Saving Screen Images117
Chapter 19 Printing Screen Images and Numeric Data (Option)118
- Loading Roll Paper into the Built-In Printer (Option)118
- Printing Using the Built-In Printer (Option)122
Chapter 20 Ethernet Communication126
- Connecting this Instrument to a Network126
- Configuring TCP/IP Settings128
- Accessing this Instrument from a PC (FTP Server)129
- Monitoring the Display of this Instrument from a PC (Web Server)130
- Connecting to a Network Drive133
- Using SNTP to Set the Date and Time134
Chapter 21 Other Features135
- Viewing System Information (Overview)135
- Initializing Settings136
- Setting the Message, Menu, and USB Keyboard Languages137
- Setting the Screen Brightness and Configuring the Display Color Settings138
- Configuring the Environment Settings139
- Configuring D/A Output Items (Option)140
- Carrying out Self-Tests (Selftest)141
- Performing Zero-Level Compensation143
- Using the NULL Feature144
- Locking the Keys145
Appendix146
Appendix 1 Messages and Corrective Actions147

Brand	YOKOGAWA
Model	WT1801E
Category	Measuring Instruments
Language	English

YOKOGAWA WT1801E User Manual

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