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23
DATA: YOUR BATTERY HISTORY
DATA
:
The
DATA
mode is used to recall key
historical information about the battery.
To access the
DATA
displays:
Before you begin, select the battery whose data you wish to see.
1)
Hold down the
SET
button until
SEL
SEL
SEL
SEL
SEL
appears in the numeric display.
2)
Press the
SEL
button six times until the red light above the word DATA appears.
3)
Charging Efficiency Factor
is the first number displayed.
4)
Press
SEL
again. The
number of CEF Recalculations
is displayed.
5)
Press
SEL
again. The
deepest depth of discharge
is displayed.
6)
Press
SEL
again. The
average depth of discharge
is displayed.
7)
Press
SEL
again. The next light on the Light Bar, the one over the word
LOCK
will come on. The
LOCK
function is described on the next page.
What the Historical Information Means:
CEF
(Displayed as
E99
E99
E99
E99
E99
):
The Charging Efficiency Factor (CEF) is the rate at which amp
hours are counted back up during charging. The amp-hour CEF, not kilowatt-hour CEF,
is displayed. A display of
E99
indicates a 99% CEF based on amp hours. The Default setting
is 95%.
NOTE:
If the CEF display has a
"u"
in front of it, this means the CEF has been
selected by the user. See
Advanced Function
F06 on page 18 for details.
#CEF Recalculations (Displayed as
+I999
+I999
+I999
+I999
+I999
):
This is the number of times that the battery
has been discharged more than 10% and then completely recharged (meaning charged until
the Charged Parameters have been met). Consider this to be the number of charge/discharge
cycles the meter has recorded since its last
RESET
to factory defaults. A discharge of less
than 10% of battery capacity is not counted as a "cycle."
Deepest Discharge (Displayed as
-i999
-i999
-i999
-i999
-i999
):
Shows the deepest discharge in amp hours
recorded by the meter since its last
RESET
to factory defaults. Think of this as the "worst
thing you've ever done to your battery."
Average Discharge (Displayed as
i999
i999
i999
i999
i999
):
The running average of all discharges since
RESET
to factory defaults. For best battery life, you should not routinely discharge more
than 50–65% of your battery's capacity. If you do, you shorten its life. An average discharge
of 500 amp hours on a 900 Ah battery is demanding but not unreasonable. An average
discharge of 180 amp hours from a 200 Ah battery is almost a sure way to make a battery
salesman happy!
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