Casella CEL Nomad portable weather station - Manual (Page 37)

4. Press Save to confirm your choice, convert the data and save the file
in the specified directory.
5.4.4 Viewing Historic Data
Data logged by Online Pro will be saved in files containing one day’s data for one
measuring station, including actual data channels and virtual (processed) data
channels. Usually, data logged by the measuring station will contain several
days’ data but will not include virtual channels as these are produced at run time
by the Online Pro application.
The table, graph and windrose displays can use data from either type
of logging, allowing you to choose which log file to open. However rainfall totals
will use only data logged by Online Pro, where the rainfall totals open log files
based on the settings for a selected measuring station. Use the View menu,
select the Historic option, then select one of the following.
Historic Table
This displays an Open dialog which allows you to select a log file (.log). All data
in the file will be displayed in a tabular format.
Historic Graph
This displays a Historic Data Range dialog which allows you to select the time
and date period you wish to be displayed on the graph. It will also allow you to
specify whether the data is to be obtained from the on-line PC or by
downloading (cloning) data stored in the specified station.
When the graph is plotted from Logged data, the software selects the
only stored file from the selected measuring station that covers the specified
Online Pro Software
Page 37 of 68
NOMAD Portable Weather Station
Users Handbook