Magnum Dimensions ME-BMK, Руководство пользователя

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Operation
Should I adjust the Charge Effi ciency setting? The Charge
Effi ciency setting allows the battery monitor to calculate the
battery’s charge ef fi ciency. The charge ef fi ciency can be calculated
automatically using the Auto setting, or can be manually programmed
by the user (using a Magnum remote/router).
The ME-BMK is shipped with the charge ef
fi ciency set to Auto. This
allows the battery monitor to automatically calculate variables that
affect the charging ef fi ciency, such as: battery type, battery age,
and how the batteries are maintained—which is not always constant.
With the Auto setting, the ef fi ciency is recalculated each time the
batteries reach a 100% state of charge (SOC).
This setting can also be manually adjusted from 50% to 99% if the
battery’s charge ef fi ciency is known. With a setting other than Auto ,
the BMK uses the manual setting to calculate the AH in/out value.
Example: Charge ef fi ciency is set to 90% and 100 AH are removed
from the battery—the SOC displays reads 100% only after 111
AH (100 AH ÷ 90%) have been returned to the battery. However,
if the charge ef fi ciency is manually set and inaccurate, the SOC
information will be more inaccurate with every charge.
If you set a manual charge ef
fi ciency, you must continually monitor
the AH in/out value (along with the SOC display) using your Magnum
remote/router to ensure charge ef fi ciency is correct.
What is the Amp-Hour Size setting? This setting is used by the
BMK battery monitor to calculate the battery’s state of charge. The
AH size represents the amount of energy the battery can deliver.
CAUTION: It is important that the amp-hour size setting is
correct or else the calculations used to determine the battery’s
SOC display will be inaccurate.
Where do I set Amp-Hour Size? Select the setting based on
the 20-hr AH capacity of your battery bank. Refer to the battery
manufacturer for the 20-hr AH capacity of your batteries.
How do I determine my Battery Amp-Hour capacity? The
batteries should be a deep-cycle type and rated either by AH or
reserve capacity in minutes.
• Amp-hour (AH) capacity is a measurement of how many amps
a battery can deliver for a speci fi ed length of time (usually 20
hrs) until the voltage achieves 1.75 VDC/cell at 80°F (27°C).
• Reserve Capacity (RC) is a measure of how many minutes a
battery can deliver a certain amount of current (usually 25A)
and maintain a voltage above 1.75 VDC/cell at 80°F. If using
the Reserve Capacity (25A), the 20-hr AH capacity can be
estimated by multiplying ‘minutes reserve capacity’ by 50%.
Battery capacity ratings tend to be optimistic and decrease at lower
temps, so this setting should be less than the published 20-hour
AH capacity of the battery bank. After obtaining the 20-hour AH
capacity, adjust this setting slightly lower (i.e., smaller AH value).