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Setting Measurement Conditions
Example setting
What you want to do Data refresh interval Recording interval
Record a signal that’s changing quickly
(electrical signal, etc.)
Shorter Shorter
Record a signal that’s changing slowly
(temperature, etc.)
Longer Longer
Record fast and slow signals at the same time Shorter for modules used to
measure fast signals
Longer for modules used to
measure slow signals
Shorter
Since you can set the data refresh interval separately for each module, the instrument can be used
as follows:
• For module 1, set the data refresh interval to 2 s so that you can eliminate power supply noise
and reduce the eects of noise when performing temperature measurement using thermocouples.
• For module 2, set the data refresh interval to 10 ms so that you can record battery voltage
uctuations.
• For module 3, set the data refresh interval to 1 ms so that you can record changes in control
signals at the maximum speed.
• Set the instrument’s recording interval to 1 ms, reecting the shortest data refresh interval.
The instrument will record data from modules 1 through 3 every 1 ms.
If the instrument’s recording interval is shorter than a module’s data refresh interval, the same value
will be recorded for that module’s data.
Example: If the recording interval is 1 ms and the data refresh interval is 1 s, 1000 pieces of data all
of which have the same value will be recorded.
For more information about the module identier, see “Module identiers” (p. 66); about the lter
of U8554 and LR8534 Strain Unit, “Measuring strain” (p. 36).
Data refresh interval of pulses
Pulse data will be refreshed at the data refresh intervals.
The data refresh interval of pulses will automatically be set depending on input types.
Input type Data refresh interval
Integration 1 ms
Rotational speed r/s or r/min (Smoothing: 1 s) 10 ms
r/min (Smoothing: 2 s to 60 s) 50 ms
• The data refresh interval setting does not aect pulse counting processes.
• Even if the data refresh interval of pulses is equal to that for the measurement module, these data
will not simultaneously be refreshed when the recording interval is shorter than the data refresh
interval.
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