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72 Time History/Back-erase screen
Tabulation screens
Models SE and DL
Time History/Back-erase screen
When conducting a broadband study, you can view as much as the last 20
seconds of Max SPL in this screen. The current Max appears at the right
border of the Time Log chart (time=0) and advances, in one-second
increments, toward the left border of the chart. The data leaving the chart at
the left border is always a measurement that occurred 20 seconds ago.
Figure 5-13: Back-erasing
Back-erasing
You can remove undesirable data at the end of a study with a process called
back-erasing. Back-erasing is available only under these conditions.
• Analysis type - Back-erasing is unavailable for filtered studies.
• Viewing areas - You must be in either the View Current Studies or
View Session viewing area. Back-erasing is not available in View Past
Studies.
• Restricted to the pause -You can back-erase only during the pause that
follows a study. Back-erasing is not available for past studies in the
session.
• Not all studies - Because back-erasing requires a manual intervention, it
is unavailable for triggered or Auto-Run studies.