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IM DL850E-01EN
Waveform Display
The DL850E/DL850EV has a main window for displaying normal time-domain waveforms, zoom windows for
displaying zoomed time-axis waveforms, and X-Y windows for displaying X-Y waveforms. In addition, you can
split screens and change the sizes of waveform display areas so that waveforms and measured values are
easier to see and display an FFT window that shows the results of FFT analysis.
Zooming along the Time Axis (GIGAZoom)
You can magnify displayed waveforms along the time axis. The zoomed waveforms of two locations can be
displayed simultaneously (the dual zoom feature). This feature is useful when you set a long acquisition time and
want to observe a portion of the waveform closely.
Displaying X-Y Waveforms
You can observe the correlation between two waveform signal levels by displaying one signal level on the
X-axis (horizontal axis) and a second signal level on the Y-axis (vertical axis). You can display X-Y waveforms
at the same time as normal T-Y (time and signal level) waveforms. You can display up to four overlapping X-Y
waveforms in both Window1 and Window2. Because multiple X-Y waveforms can be displayed, it is easy to
compare the relationships between phases. You can use this feature to evaluate DC motors using Lissajous
waveforms.
Snapshot
You can continue displaying a waveform on the screen as a snapshot waveform after the screen has been
updated and the waveform has been cleared in update mode or after the waveform has left the screen in roll
mode. Snapshot waveforms appear in white. You can compare them with new waveforms. You can also save
and print snapshot waveforms as screen captures.
Waveform Computation and Analysis
Waveform Computation
You can perform basic arithmetic, binarization, FFT (power spectrum), and phase shifting (display the waveform
with its phase shifted). On models with the /G2 option, you can use a rich variety of functions (square root,
trigonometric functions, differentiation, integration, digital filtering, six types of FFT functions, and so on) to define
up to eight equations.
Cursor Measurement
There are cursors for T-Y (time-axis), X-Y, and FFT waveforms. You can position a cursor over a waveform to
view the various measured values at the intersection of the cursor and the waveform.
Automated Measurement of Waveform Parameters
You can use this feature to automatically measure waveform levels, maximum values, frequencies, and other
values. For up to 100 Mpoint of waveform data, you can measure 29 waveform parameters (including the delay
between channels) that relate to the voltage axis, time axis, and waveform area.
• You can display a total of 32 measured values for all the waveforms.
• You can save a total of 64000 items of data for all the waveforms.
• You can also perform computations on measured waveform parameter values.
• You can display the following statistics for the specified waveform parameter.
The maximum value (Maximum), minimum value (Minimum), average value (Average), standard deviation
(SDev), and number of measured values used to calculate statistics (Count)
1 Main Features