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5.0 SPM-200 Web Page Overview
The Sensors Page shows the current value of all the inputs to the SPM. A Sensors Page from an SPM that has
been running a while is shown on the following page, see FIGURE 8:
FIGURE 7: SPM-200 Sensors (Unconfi gured Unit)
This page allows the user to select data inputs and graph them over a chosen time period. The graph
can show data over ranges in time from the last 10 minutes to the last 30 days. The user can select any
combination of the inputs to be graphed. At the bottom of the page is shown the maximum length of the
log, in this case 30.3 days. That means if the SPM-200 has enough room in its memory to store data over that
time. The memory is set up as a circular buffer - if the SPM-200 has run for more than that time, new data will
replace the old on a fi rst in – fi rst out (FIFO) basis.
When you change the graphing periods, it will automatically update the graph.
If for some reason you want to delete all the data that is in memory, check the "Reset Logs" box. Caution –
there is no way to recover the data after the reset button is checked.
The check boxes only control what data is being graphed, not what is being logged. The SPM-200 always logs
the data from all the inputs. The data can be downloaded to a PC or a similar machine in Comma Separated
Value (CSV) format. CSV is a very simple and general way to store data in a fi le. Most analysis programs,
such as Microsoft Excel®, can read CSV data. So you can download all the data in memory and analyze it
with Excel®.
Again, don't forget to click the "Save" button.
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