Thermo Technologies SMT 400 - Manual (Page 19)

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3.6 SOLAR HISTORY - COLLECTOR, TANK AND ENERGY COLLECTED
1 SOLAR HISTORY Function selector
Pressing this key once reveals the solar history screen. The SMT 400 records
the collector and tank temperature of each day as well as the energy
collected. The storage capacity of the SMT 400 is approximately 2 years.
When the memory is full the oldest data in the databank will be overwritten. A
sample is taken every 10 minutes from each of these readings. These are
then displayed in graphical form, thereby representing the system
performance for the user with clarity. A calendar allows the user to choose
the day of which data will be plotted. The unit also records daily readings
from the last 8 weeks, which is also plotted and can be viewed by pressing
this key twice. Pressing this key three times will display the directory of the
memory bank. The highlighted months on the screen are the months for
which the databank contains data. To view the plot of a particular day, select
the required month from the calendar using the keys, followed by the
key to accept the selection. A second screen appears for the selection of
the day after which the logged data of the required day is displayed for
inspection.
2 Collector, Tank & Energy Selector
Use the keys to select which parameter is to be displayed on the
graph.
C - Collector sensor temperature.
T - Tank sensor temperature.
E - Energy collected.
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