Measurement-computing USB-5100 Series Manuel d'utilisateur télécharger pdf (Page 21)

USB-5100 Series Software Help Working with USB-5100 Series Data Loggers

3. Configure the sampling interval, which must be less than and a factor of the logging interval. Choose either

a preset sampling interval or select

Custom and enter your own sampling interval. Keep in mind that the

more frequent the sampling rate, the greater the impact on battery life.

Figure 10. Statistics Dialog Box

4. Click OK when done. This returns you to the Launch Logger dialog box. Click Edit next to Logging Mode

in the

Launch Logger dialog box to make additional changes.

Once logging begins, press the

Alarm/Stats button on the logger for one second to cycle through the current

maximum, minimum, average, and standard deviation data (as applicable) on the LCD screen (it is not available

in the software Status dialog box). You can plot the statistics series once you read out the logger.

Filtered Series vs. Statistics Logging

USB-5100 Series loggers support filtered series and statistics logging, both of which involve calculating

maximum, minimum, and average values that you can plot after the logger is read out. Both are accessed from

the Launch Logger dialog box; for filtered series, click

Filters and for statistics logging, select Statistics as the

Logging Mode. However, there are some key differences between the two features. Basically, statistics logging

is performed at the sampling interval of the logger, while filters include data accumulated from a series of

logged data points.

The following table compares filtered series to statistics logging so that you can choose the best solution for

your deployment.

Note: There is also another filtering option available after you read out the logger, which is available from the

Filter button on the toolbar. This allows you to create filtered series based on the data in the plotted data file.

For more information about filtering after reading out a logger, see

Filtering a Series.

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Measurement-computing USB-5100 Series Manuel d'utilisateur Page 21