YOKOGAWA DL7440

10-14 IM 701450-01E
Search Target Waveform and Search Measurement Parameter
You can select the target waveform and the measurement parameter to be used as a
search condition. If a waveform that meets the search condition is found, other history
waveforms at the same time as the found waveform are also displayed.
Search Target Waveform
DL7440
You can select the target waveform from CH1 to CH4, Math1, and Math2.
DL7480
You can select the target waveform from CH1 to CH8, Math1, and Math2.
Search Measurement Parameters
Same as the measurement parameters of the automated measurement of waveform
parameters. See section 10.6.
Determination Range of the Measured Value of the Search Measurement
Parameter
You can set the upper and lower limits of the determination range. The selectable range
is –9.9999E+30 to 9.9999E+30. The upper limit must be greater than or equal to the
lower limit.
Search Logic
You can select the AND logic or OR logic of the search conditions of the four search
parameters in performing the search.
AND
Searches for waveforms that meet all search conditions from Param1 to Param4.
OR
Searches for waveforms that meet any one of the search conditions from Param1 to Param4.
Search Range
The selectable range is ±5 divisions, and the resolution is 10 divisions÷the display record
length. The right end of the search range (Time Range2) must be greater than or equal
to the left end of the search range (Time Range1).
History Waveform Range
You can search the history waveforms in the range specified by Start Record and End
Record of the HISTORY menu (see section 10.1)
Search Method
Search is performed in order from the newest history waveform.
History Map after the Search (Search Result)
The record numbers and time stamps of the waveforms that are found can be listed on
the history map. If you set the Search Mode to OFF in the HISTORY menu, or turn OFF
Param1 to Param4 and execute the search, the search result is reset.
10.3 Searching History Waveforms Using Waveform Parameters (History Search)