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3.4.1.2
Capacity
The reported capacity is the estimated number of days of data the Datalogger can stored before the
Datalogger begins to overwrite the oldest stored data. The capacity estimate is based on the record size
stored during each log event and Datalogger’s currently defined Log Intervals.
3.4.1.3
Oldest data
Oldest Data is the date and time of the oldest data currently stored in the Datalogger. Oldest Data date
and time is updated when the data file reaches its size limit and the Datalogger starts to overwrite the
oldest data.
3.4.1.4
Newest data
Newest Data is the date and time of the newest data currently stored in the Datalogger. Newest Data
date and time is updated as new data is recorded.
3.4.1.5
Estimated overwrite date
The Est (estimated) Overwrite Date is the date on which the Datalogger starts to overwrite data stored
in its circular data file. The estimated overwrite date is based on the capacity estimation and the current
date.
Data viewing
3.4.2
The user can examine logged data in tabular or graphical format.
To view and to customize a graph of the available data, use the
Data Graph
screen (
Home > Data > Graph
).
To view all logged data in a tabular format, use the
Data Table
screen (
Home > Data > Table
).
3.4.2.1
Graph view
Graph View (the
Data Graph
screen;
Home > Data > Graph Data
) is useful for examining a data trend over a
short period of time. While it is possible to graph a large time period, the user should be aware that it
may take the Datalogger an extended time to format the graph depending on the number of readings
in the selected range.
To configure the graph (set the date and time range, select the data points to display, set the y-axis
minimum and maximum), use the
Graph Setup
screen (
Home > Data > Graph Data > Setup Cog
).
3.4.2.2
Table view
Table View (the
Data Table
screen;
Home > Data > Display Table
)is useful for examining specific data values,
presented in a tabular format. The user is able to resize the data columns as well as reposition the data
columns, by drag and drop, so that they can easily compare data point values.
The
Jump
button on the
Data Table
screen allows the user to go to a specific time in the logged data.
Data operations
3.4.3
To export selected logged data to a USB memory stick, or to delete the Datalogger’s logged data file,
use the
Download Data
screen (
Home > Data > Download Data
).