Measurement Computing WaveBook rev.3.0 - Manual (Page 129)

WaveBook User’s Manual,
5-20-99
PostView 6-15
PostView Timebase
PostView automatically detects and displays the data file timebase along the X-axis at the bottom of the
PostView window. The timebase can be displayed as relative time or as absolute time in the format:
00:00:00.0 (hour/minute/second/tenth). The timebase format of absolute or relative can be selected in
PostView’s Option pull-down menu, or by using Ctrl+A or Ctrl+R respectively.
Note: PostView automatically displays milliseconds (ms) or microseconds (µs) when applicable to
acquisition programs that make use of such time scales. Aside from selecting the absolute
timebase (if desired) no user action is required in regard to the timebase display.
Two Points About the PostView Timebase
• When a data file is loaded into PostView for the very
first time, the relative timebase format will be used.
• You cannot select absolute timebase when the data file
has no timebase. In this case PostView will
automatically use relative time.
PostView Timebase Creation
The following figure illustrates a partial timebase in the relative format. Note that the user could switch to
absolute time with Ctrl+A on the keypad, or by selecting Absolute time from the Options pull-down menu.
The example below resulted from a ChartScan/1400 using ChartView software.
Example of a PostView Timebase
Note: For many data acquisition programs, trigger point (t = 0) may not be the first point in the data file.