Vaisala Hydromet Data Collection Platform - Manual (Page 41)

Chapter 3 ____________________________________________________________ Getting Started
VAISALA_______________________________________________________________________ 39
0711-047 Figure 17 Selecting Statistical Calculations
8. In the Loggable data views, presented in Figure 18 on page 40 ,
you can select the logged variables for ten-minute, one-hour, and
24-hour intervals.
Note that you can use log groups to group log data according to, for
example, the intervals when the data is being logged. Thus one log
group can contain the variables logged at one-minute intervals and
so forth. Using log groups can also be useful if you define that a
change in a certain variable will cause all variables in a specific log
group to be logged. For example, an alarm will then trigger logging
of data somehow involved with the source of the alarm.
The estimated size of the log groups and the time that they will be
stored are indicated above the selection box.
Select the Use external memory card check box if you want the
log files to be stored on the external memory card.
After selecting the necessary variables, click Next.
There are similar Loggable data views also for the 10-minute and
24-hour intervals. The interval in question is indicated in the upper
right of each view.