ECOWITT HP3500, Руководство по эксплуатации

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The screen also offers a “Clear” button. When pressed, all maximum and
minimum values will be “forgotten” and new maxima and minima will only
be collected from sensor data collected from this point forward.
8.3.2 SDCard File
Figure: SDCard File screen
If you have an SD card installed, you may also access the data on the SD card
directly.
On the data screen you will see, in the left column, a list of files that contain
recorded data. Select the file you are interested in by clicking on it and then
pressing the
“Select” button. If you wish to delete the file, press the “Delete”
button instead. Before really deleting the file, you will be asked to confirm.
Selecting a file will show the data from the file in tabular format to the right of
the file name column. You can see a time stamp for each row, followed by
individual sensor values.
8.3.2.1 Graph
You can look at the data on the SDCard file(s) in the form of a graph.