How to ? Start or Reset histogram counting
Start or Reset histogram counting
Use this procedure to quickly take a measurement based on the default settings for histograms:
1. Display the waveform(s) to be measured on the screen.
2. From the Measure menu, click Waveform Histograms to open the Waveform Histogram Setup window.
3. Use the Channels Selector
(see page 258) to select the waveform, and then use the other instrument
controls to position the waveform in the center of the screen.
4. Click a Histogram Mode button to start histogram counting and display the histogram data:
Horiz. Displays a horizontal histogram that shows how time v aries in the histogram box.
Vert. Displays a vertical histogram that shows how your vertical units vary in the histogram box.
Off/On. Turns histogram counting and the display on or off.
NOTE. You c an only display one type of histogram at a time. Horizontal histograms have a maximum
of 1000 bins while, vertical histograms have a maximum of 252 bins.
5. Click a Histogram Scaling option:
Linear. Displays histogram data linearly. Bin counts smaller than the maximum counts are scaled
linearly by dividing the bin count by the maximum bin count.
Log. Displays histogram data logarithmically. Bin counts smaller than the maximum counts are
scaled logarithmically. Logarithmic scaling provides better visual d etails for bins with low counts.
6. Click Adjust Histogram Box Limits, and then use the Top Limit, Bottom Limit, Left Limit, and
Right Limit controls to set the size of the histogram box. The histogram box selects the section of
the waveform used for histograms.
7. Click Adjust Histogram Box Location, and then use the X Location and Y Location controls to set the
location of the histogram box.
8. Click Reset to reset the histogram count. Histograms track numbers of counts. Clicking Reset resets
those counts to zero and begins counting from zero.
9. Click Display to toggle the display of the selected histogram on and off.
TIP. To clear histogram data, right-click in the display area, and then select Clear Data from the short
cut menu.
Display a w aveform
This procedure demonstrates the display adjustments you can make.
662 DSA/DPO70000D, MSO/DPO/DSA70000C, DPO7000C, and MSO/DPO5000 Series
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