YOKOGAWA DLM2000 Series, Руководство по эксплуатации

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5-11
IM 710105-03E
Specifications
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App
Index
Item Specifications
History waveform searching You can search for waveforms that meet specified conditions, display detected history waveforms,
and list the timestamps of the waveforms.
You can set a search condition to search for history waveforms that enter a rectangular zone (Simple)
or set four
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conditions4 and search on the AND or OR logic of these conditions.
Search criterion can be set to whether the source waveform enters the search range (IN), moves
outside the search range (OUT), or don't care (X).
The following four search range types are available.
Rect-Zone: Rectangular zone. FFT waveforms cannot be used.
Wave-Zone: Waveform zone. XY and FFT waveforms cannot be used.
Polygon-Zone: Polygonal zone. FFT waveforms cannot be used.
Parameter: Zone between the upper and lower limits of one waveform parameter.
Waveform searching Searches the displayed waveform for locations that meet the specified conditions and displays the
waveform expanded around the detected points.
Up to 50000 points can be detected within the specified search range.
Search feature: Searches for a particular section after a particular time (Start Point) on the
currently displayed waveform and displays the section in the zoom window.
Selectable Start Point range is ±5 divisions.
Search Types: Edge, Edge Qualified, State, Pulse Width, State Width
Cursor measurement The following cursors are selectable.
ΔT, ΔV, ΔT & ΔV, Marker, Degree
Automated measurement of
waveform parameters
The following waveform parameters can be automatically measured.
• Items that are measured over the entire specified range of data and are irrelevant to the period.
Max, Min, P-P, High, Low, Amplitude, Rms, Mean, Sdev, , IntegTY, +Over,
-Over, Pulse Count, Edge Count
• Items that are measured in the first period in the specified range.
Freq, Period, Burst, +Width, -Width, Duty, Rise, Fall, Delay
• Items that are measured over all periods in the specified range.
AvgFreq, AvgPeriod
• ΔT & ΔV cursor value
V1, V2, ΔT
For logic signal, the following items are selectable.
Freq, Period, AveFreq, Duty, Pulse Count, Delay
In cycle mode, the following items are valid.
Max, Min, P-P, High, Low, Amplitude, Rms, Mean, Sdev, , IntegTY, +Over, -Over
The maximum total number of items that can be displayed in Area1 and Area2 on the screen is 30.
Statistical processing of
waveform parameters
The following three types of statistical processing are available.
Continuous: Calculates statistics on normal measurement that is performed multiple times.
Cycle: Calculates statistics on the measurement of each period of the displayed
waveform.
History: Calculates statistics on the measurements of multiple history waveforms.
The calculated statistics are as follows:
Statistical items: Max, Min, Mean, σ , Count
Trend display and histogram
display of waveform
parameters
Up to two trends or histograms of the specified measurement items can be displayed (only one on
the DLM2022, DLM2032, DLM2052).
The maximum number of items that can be displayed on the screen is nine.
Expanded parameter
measurement
Automated measurement of waveform parameters can be performed on two areas. Calculations
can be performed using the automated measurement values of waveform parameters.
In addition to the normal waveform measurement range (Area1), you can specify another
measurement range (Area2).
The same parameter measurement as Area1 can be performed in Area2. Cycle mode can be set
on Area2.
The items that can be measured in Cycle mode are as follows:
Max, Min, P-P, High, Low, Rms, Mean, Sdev, , IntegTY, +Over, -Over
The maximum total number of items that can be displayed in Area1 and Area2 on the screen is 30.
Frequency distribution
analysis
Counts the frequency of data occurrence in a specified area and displays the values in a histogram.
You can select whether to count the voltage data frequency or the time data frequency.
The mean, standard deviation, maximum value, minimum value, peak value, median, etc., can be
measured on the histogram.
You can set up to two histogram source waveforms (Hist1 and Hist2; only HIST1 on the DLM2022,
DLM2032, and DLM2052).
Action-on-trigger A specific action can be executed when the DLM2000 triggers.
You can set the number of times to execute the action in terms of the number of waveform
acquisitions or the number of determinations.
Actions: Beeping, screen capture data printing or saving, waveform data saving, mail
transmission
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5.5 Features