Chapter 12 Display Control

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Chapter 12 Display Control

You can set the type, persistence time and brightness of waveform display as well as the grid type and grid brightness of the screen display.

The contents of this chapter:

 To Select the Display Type

 To Set the Persistence Time

 To Set the Waveform Intensity

 To Set the Screen Grid

 To Set the Grid Brightness

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Chapter 12 Display Control

To Select the Display Type

Press Display  Type to set the waveform display mode to “Vectors” or “Dots”.

 Vectors: the sample points are connected by lines and displayed, as shown in the figure below. Normally, this mode can provide the most vivid waveform to view the steep edge of the waveform (such as square waveform).

 Dots: display the sample points directly as shown in the figure below. You can directly view each sample point and use the cursor to measure the X and Y values of the sample point.

Vectors Display Dots Display

To Set the Persistence Time

Press Display  Persis.Time to set the persistence time of the oscilloscope to Min, specific values (100 ms, 200 ms, 500 ms, 1 s, 5 s and 10 s) or Infinite.

In the following part, the frequency sweep signal of a sine waveform is used to demonstrate the waveform effects in different persistence times.

1. Min

Enable to view waveform changing in high refresh rate.

2. Specific Values

Enable to observe glitch that changes relatively slowly or glitch with low occurrence probability. The persistence time can be set to 100 ms, 200 ms, 500 ms, 1 s, 5 s or 10 s.

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Chapter 12 Display Control

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3. Infinite

In this mode, the oscilloscope displays the waveform newly acquired without clearing the waveforms acquired formerly. The waveforms acquired formerly will be displayed in relatively low-brightness color and the waveform newly acquired will be displayed in normal brightness and color. Infinite persistence can be used to measure noise and jitter and to capture incidental events.

To Set the Waveform Intensity

Press Display  Intensity or turn in non-menu operation to adjust the waveform brightness of the channel. The default is 60% and the range available is from 0% to 100%.

To Set the Screen Grid

Press Display  Grid to set the screen grid type.





: turn the background grid and coordinate on.

: turn the background grid off.

 : turn the background grid and coordinate off.

To Set the Grid Brightness

Press Display  Brightness to set the brightness of the screen grid. Turn to adjust the grid brightness. The default is 50% and the range available is from 0% to

100%.

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