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IM 760301-01E
NULL Function «For procedures, see section 10.2.»
When the NULL function is turned ON, the Udc and Idc (numeric data of the simple
average of the voltage and current during normal measurement) are set as NULL values.
The NULL values are subtracted from the sampled data of voltage and current. Hence,
all measurement functions are affected by the NULL values.
Selecting the Sampling Frequency «For procedures, see section 10.3.»
The WT3000 has three types of sampling frequencies at approximately 200 kHz to
prevent the input waveform from being measured as a DC signal due to aliasing (see
section 2.7). The sampling frequency can be automatically switched or fixed to one of
three types.
Setting the Display Font «For procedures, see section 10.4.»
The text font that is displayed can be selected from two types of fonts.
Setting the Brightness of the Screen «For procedures, see section 10.5.»
The brightness of the LCD monitor can be adjusted.
Setting the Display Colors «For procedures, see section 10.6.»
The colors for graphical elements such as the waveform, background, scale, and cursor
and text elements such as the menu and the menu background can be selected. Set the
color using a ratio of red (R), green (G), and blue (B).
Setting the Key Lock or Shift Lock «For procedures, see section 10.7.»
Key lock can be used to prevent inadvertent operation errors. Shift lock can be used to
reduce the number of times you press the Shift key.
Help Function «For the procedure, see section 10.8.»
A brief explanation on operation or function can be viewed.
Master/Slave Synchronized Measurement «For procedures, see section 10.9.»
With the master instrument outputting a measurement start signal and the slave
instrument receiving the signal, synchronized measurement on two instruments can be
achieved.
Self-Test Function «For procedures, see section 11.3.»
A self-test can be performed to check whether the instrument is operating properly.
Components such as the internal memory (ROM and RAM) and the operation keys can
be tested.
2.11 Saving and Loading Data and Other Functions