CSZ EZT-570S, Руководство пользователя

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EZT-570S User Manual
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Figure 7-4 Plot Time
The start and end dates for the currently loaded file will be shown with time in hours, minutes and
seconds. The “File Date Start” and “File Date End” sliders are used to select a time span for
historical viewing. Once the desired start and end times have been set, press the “Return” button to
return to the Plot Setup screen.
7.3.2 Plotting Historical Data
To display the data from the currently opened history file select Plot from the History menu. If a file
has not been opened or data points have not been assigned to plot, the EZT-570S will alert the user
to correct the problem. The ‘X’ and ‘Y’ axis scales are set to auto scale based on current values for
each plot channel so no user action is required.
The historical graph provides the same zoom feature as the real-time trends so the user can zoom in
on a particular area of the historical plot by dragging their finger across the screen to draw a rectangle
around the desired plot area.
Figure 7-5 Historical Plot
Pressing the “Legend” button will provide the user with channel information by displaying the names
of the selected plot channels, which axis they are associated with and the color used to display the
plot channel. Pressing the button again will toggle the display back to the historical plot.