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The Flicker display presents the following data:
ñ the total time of the selected range along the X axis.
ñ the magnitude of flicker perceptibility units along the Y axis. This graph does not display
failures.
ñ the Rms Measurement area on the bottom of the screen provides a summary value of
Dmax, Dc, and Dt voltage fluctuation failures. Summary values are the maximum value for each
type within the presently displayed integration period. If dashes are displayed in the Rms
Measurement area, it means that the test either never achieved or never exited the “steady-state”
required by the regulation. Refer to the Glossary for information about steady-state.
ñ You can zoom in on any area of the graph by drawing a zoom area with the left mouse button
and then double-clicking inside the area. Note that the zoom has a minimum range of one data
point/bar (or one second of the total span), and a maximum range of one Pst integration time.
Integration times of 1, 5, 10, or 15 minutes can be specified in the Advance Test Options
window. The cursor indicates the present data record or time. Each data record corresponds to
one second of the total test time.
To determine in which integration period the present data record is located, click on Pst,
Probability, or Distribution and see which integration period is indicated in the Cursor field.
Search Parameters
When the display is set to Fixed, you can perform search functions on specific test data. Search options
let you:
ñ Search for specific items such as Flicker according to perceptibility units.