| Capture and Display
Zoom and Search Functions |
| Real time Filter with optimum noise
reduction supports a wide range of frequencies (from 8kHz to
200MHz). The DLM2000 series has two types of filters, one
processed at the input circuit and one based on MATH functions.
These filters are effective for rejecting unwanted signals
allowing observation of only the desired bandwidths.
Real Time Filters
Each channel has 14 low pass filters available from 8kHz to
200MHz Waveforms of limited bandwidths are stored in internal
memory.
Cutoff Frequencies |
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| 200MHZ, 100MHz, 20MHz, 10MHz,
5MHz, |
| 2MHz, 1MHz, 500kHz, 250kHz,
125kHz, |
| 62.5kHz, 32kHz, 16kHz, and 8kHz |
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Processing with
built-in filters |
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Computed Digital
Filters
The input waveform can be filtered using an IIR filter, which is
a MATH function. Filtered waveforms can be displayed at the same
time as the input waveform for comparison. You can select low
pass or high pass filters.
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| Cutoff frequency Setting
Range: 0.01Hz to 500MHz |
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Filtering of a PWM
waveform using computation |
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Zooms into different points - Waveform zoom and search functions
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Zoom two
locations simultaneously. Because the DLM2000 series lets
you set zoom factors independently, you can display two
zoomed waveforms with different time axis scales at the
same time.
Also, using the
Auto Scroll function, you can automatically scroll
waveforms captured in long memory and change the zoomed
location.
With Auto Scroll
you can choose forward, backward,
fast-forward, scroll speed, and other control options. |
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| Large capacity memory gives
you a variety of Waveform Search Functions |
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Two types of waveform searching
Normally, searching for data takes time, and long memory is
useless without functions for extracting desired data from a
large capacity memory. That's why the DLM2000 series does not
simply offer long memory, it also provides powerful waveform
search functions.Searching for
data in a single screen: The Zoom Search function
This function searches captured waveforms in the long memory and
displays waveforms that meet the search criteria in the zoom
area. The locations of the found waveforms are marked on the
screen.
(shows the current location)
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Waveform
Search Criteria
Edge, edge (with conditions), state pattern, pulse width,
state width, serial bus (only on models with serial bus
analysis option). |
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Searching for
history waveforms: The History Search Function.
Criteria can be specified for extracting desired waveforms
from up to 20,000 previously captured waveforms. |
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Searching for
waveforms in zones in zones created by moving measured
waveforms up/down/left/right. |
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Search for
waveforms that pass through/do not pass through a
rectangular zone placed on the screen |
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| Useful Functions - Fastest
and most capable analysis |
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Display trends
of peak-to-peak or pulse width per cycle
Measure function and statistics
Twenty-eight waveform parameters are included such as:
maximum, minimum, peak-to-peak, pulse width, period,
frequency, rise/fall time, and duty ratio.
Automated
measurement can be performed using up to 20 of these
waveform parameters. Also, waveform parameters can be
measured repeatedly, and the statistical values displayed
(mean, maximum, minimum, standard deviation etc). |
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Trend and
histogram displays
Waveform parameters such as period, pulse width, and
amplitude can be measured repeatedly and displayed in
graphs.
In a single
screen you can observe period-by-period
fluctuations, complete amplitudes every screen using
multiple waveforms, and display histograms referencing the
voltage or time axis using values from repeated automated
measurement of waveform parameters.
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Trend display of waveform parameters
Histogram display using the same axis |
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Measures
voltage/time differences automatically
Cursor Measurement -
Cursors can be placed on the displayed waveform from
signal data, and various measurement values at the
intersection of the cursor and waveform can be displayed.
There are six
types of cursor, ΔT, ΔV, ΔT and ΔV,
Marker, Degree Cursor.
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Simultaneous level and with the
ΔT and ΔV cursor |
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Analyzes Frequency
Spectrums
FFT Analysis -
Up to two FFT analysis can be performed simultaneously. FFT can
be performed on computed waveforms in addition to the actual
waveforms on CH1 to CH4.
Analysis can be
performed on the frequency components of waveforms filtered for
limited bandwidth, on frequency for changes in period of rotary
objects, and other phenomena. |
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Keep waveforms with
one push
By pressing the SNAPSHOT key to the lower right of the screen,
you can freeze a white trace of the currently displayed waveform
on the screen.
You can press the key
repeatedly and conveniently leave traces for comparing multiple
waveforms.
Also, snapshot data
recorded on screen can be saved or loaded as files, and can be
recalled for use or reference waveforms when making comparisons.
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Displays stored
files in thumbnail format
Thumbnails of waveform data, waveform image data, and Wave-Zone
files can be displayed.
The image and file
names are shown so that you can view screen image contents while
copying or deleting files.
In addition to
normal-sized screens, you can even save wide images that have
been zoomed along the time axis.
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Thumbnails of
saved files |
Zoomed (2x)
long image file |
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Has a GO/NO-GO
function
CO/NO-GO can be determined using trigger conditions, zone
waveforms, measurement parameters, and other criteria.
For NO-GO, actions can
be be carried out at the same time such as sounding a buzzer,
saving the current waveform, or sending notification to a
designated e-mail address.
Waveforms in which an
abnormally occurred can be saved for confirmation and analysis
of the phenomena at a later time.
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Can check functions
with graphical online help
You can view detailed graphical explanations of the
oscilloscope's functions by pressing the "?" key in the lower
left of the screen.
This lets you get help
on the functions and operations on the screen without having to
consult the user's manual.
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