10-54
IM 701730-01E
CH1 to CH4 (2), Math1, Math2
Performs automated measurement of waveform parameters on all target waveforms per cycle of
the specified channel, and performs statistical processing. You can select up to CH2 and Math1
on the DL1720E and up to CH4 and Math2 and Math2 on the DL1735E/DL1740E/DL1740EL,
respectively.
Own
Determines the cycle for each target waveform, performs automated measurement of waveform
parameters for each cycle, and performs statistical processing. However, if signals of different
cycles are applied to multiple channels, automated measurement of waveform parameters and
statistical processing are performed for the number of cycles of the channel whose cycle is the
slowest on all other channels.
• The following parameters cannot be measured.
Waveform Used to Determine the Cycle
(If you selected “Own” for the method of determining the cycle described earlier, all the
waveforms are “waveforms used to determine the cycle”).
Avg Freq (average frequency), Avg Period (average period), Pulse (pulse count), Int1XY (area),
Int2XY (area), and Delay.
Other Waveforms
Int1XY (area), Int2XY (area), and Delay.
• Cannot be used simultaneously with 1 cycle mode (see page 10-46).
Measurement and Statistical Processing of History Waveforms
Measurement and statistical processing of the selected parameters are performed on the
history waveform. Measurement and statistical processing are performed from the oldest
data. The range of the history waveform on which measurement and statistical processing
are performed is the waveform displayed on the history map (see section 10.1).
Displaying a List of Measured Values
When measurement per cycle and statistical processing within the measurement range as
well as measurement and statistical processing of history waveforms are executed, the
measured values of the selected measurement parameters can be listed. Numbers are
assigned in order from the left end to the right end of the screen (from the oldest waveform)
as #00001, #00002, and so on and the corresponding measured values are displayed.
• The maximum and minimum values of each measurement parameter are displayed using
↑
(maximum) and
↓
(minimum). If there are multiple points that are of the same value, the
maximum and minimum values are marked on the oldest of the measured values.
• The maximum number of measured values that can be listed is 24000.
• If this value is exceeded in the measurement and statistical processing of history
waveforms, the most recent 24000 measured values are displayed. If the number
of measured values exceed 24000, and the maximum or minimum value resides
outside the list display,
↑
(maximum) and
↓
(minimum) are not displayed.
• In the measurement and statistical processing per cycle, measurement and statistical
processing are performed on the 24000 values that can be listed, and measurement
and statistical processing are not performed on the rest of the waveform.
• In the list of the measurement and statistical processing of history waveforms, you can
select a number using the jog shuttle and press SELECT to display the history
waveform of the selected number.
• In the list of the measurement per cycle and statistical processing within the
measurement range, you can select a number using the jog shuttle and press
SELECT to display the waveform (1 cycle) of the selected number zoomed.
Note
•
All soft keys except the “Measure Abort” soft key are disabled while the measurement and
statistical processing are in progress.
•
Measurement per cycle and statistical processing within the measurement range are not
possible in automated measurement of waveform parameters on dual areas (see section 10.8).
10.7 Statistical Processing of the Automated Measurement Values of Waveform Parameters
