Set the graph display type – Bird Technologies SA-6000EX User Manual
Page 80
Bird Technologies
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Set the Graph Display Type
When the Site Analyzer collects data during a sweep, you can specify
that it measure 238 data points, 475 data points, or 949 data points.
Selecting 475 data points takes twice as much time to sweep as 238
points, and 949 points takes four times as much time to sweep as 238
points.
The Site Analyzer display screen graph area can display only 238 data
points because of its physical pixel limitations. However, if the trace
contains 475 data points or 949 data points, all points are represented
on the display. There are three modes available to display the data
points for the trace - envelope, maximum, and minimum. For 238 data
points, there is no difference in the display for each of the three modes
because each data point occupies a separate pixel. For 475 data points
and 949 data points, the envelope mode displays all data points, the
maximum mode displays only the highest (peak) magnitude data
point for each pixel, and the minimum mode displays only the lowest
(minimum) magnitude data point for each pixel.
Note:
When you save (or download) a trace, all measured
data points (238, 475, or 949) are saved (or downloaded). The
display modes (envelope, maximum, minimum) are for the Site
Analyzer display only and are not saved (or downloaded) with
your trace.
1. Turn on the instrument and enter the Measure Match mode (refer
to Select the Measure Match Mode, page 18).
2. Select Frequency (refer to Setting the Measurement Frequency,
3. Make sure that the instrument is calibrated (refer to Calibration,
4. Select the Fault Location mode (refer to Select Fault Location
5. Follow the steps in Figure 31, page 65 to set the graph display.