15
D2020N User Guide
The Data Menu
This is a quick summary of the screens in the data submenu
which are reached by a long push on the DATA screen and the
values stored each day by the history function.
VMAX Maximum battery voltage since midnight.
VMIN Minimum battery voltage since midnight.
FTIM Time of day the controller entered the Float state
if it didn’t begin in float (see page 17).
SOC Percentage estimate of the state of charge of the
battery based on amp hours in/out. A very rough ‘fuel
gauge’.
TEMP Temperature being sensed by the battery temperature
sensor (if attached).
SOLV Solar panel open circuit voltage.
NB: charging stops while displaying this screen.
HIST Entry point for history data display.
IN The amount of energy collected in Amp hours today.
OUT The amount of energy used in Amp hours today.
At midnight, IN, OUT, VMAX, VMIN, FTIM and SOC are stored
in the history data and reset. VMAX and VMIN respond very
slowly to changes in battery voltage. This allows them to ignore
short term voltage fluctuations.
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