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Playback / review mode, Input range (auto/manual), Playback mode…….3-3 – Measurement Computing eZ-PostView rev.2.0 User Manual

Page 61: Input range (auto/manual)…… -3

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eZ-Analyst

979595

Menus

3-3

Task Menu

>

Playback / Review Mode

The Playback Mode does not require the presence of physical hardware. When in Playback,

eZ-Analyst is strictly a post-acquisition display and analysis program. Raw time-domain data,

that has been recorded-to-disk, can be played back for analysis repeatedly. For example, a raw
signal could be played back several times, each time using a different filtering algorithm to

manipulate the original signal. Once the desired results have been achieved the new data can

be exported in a new format and to a different file. The original file can remain unchanged, and
kept for future analysis.

To activate the Playback Mode, select Playback/Review on the Task Menu. An option is to click

the <Change Task Mode> button (the first button in the tool bar) while in the Measurement

Mode. Also, note that when a WaveBook or ZonicBook is not available, eZ-Analyst will
automatically enter the Playback mode and will display the data that was most recently

recorded to disk.

Playback Mode Task Bar

Task Menu

> Input Range (Auto/Manual) *

Auto-ranging is a procedure that automatically sets the input full-scale voltage (FSV) range for

input channels. The FSV is set by measuring a representative sample of real-time data. Auto-
ranging is only performed on active channels.

WaveBook and ZonicBook/618E Applications

Auto-ranging works best if you supply the maximum expected voltage range for the data that

will be captured during the acquisition. Therefore, make the Auto Range Duration long enough
to apply a typical signal. The maximum duration is 65535 mSecond. Also, make sure that the

Auto Range Analysis Frequency is fast enough to capture the high frequency component.

Typically the Analysis Frequency will be the same setting as eZ-Analyst’s Acquisition Analysis
Frequency.

AutoRange Dialog Box, from a WaveBook

Note that the AutoRange Dialog Box for ZonicBook/618E looks similar.

* You can access the dialog box for WaveBook and ZonicBook/618E by clicking the <Auto Range>

button, which is located on the Input Channels tab, when in the “Measurement Mode.”

Play Backward, Play Backward Stop Play Play Forward

One Frame at a Time One Frame at a Time

Change

Task Mode