©2013 Magnum Energy, Inc.
74
press to
save
METER
press
Status...
05 BM: Setup
rotate to
press to select
(press x2 for ME-RC50's
with Rev. 2.6 or later)
rotate to
desired
selection:
.......
Status...
Chg Eff=Auto
Status...
Chg Eff= 50%
Status...
Chg Eff= 60%
Status...
Chg Eff= 97%
8.1.2 Adjusting the Charge Ef
fi
ciency Setting
The
Charge Ef
fi
ciency
setting determines how the battery monitor calculates
the battery’s charge ef
fi
ciency. It can be calculated automatically using the
Auto
setting, or can be manually programmed by the user (see Figure 8-2).
The battery monitor 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% SOC.
This setting can also be manually adjusted from 50% to 97% to calculate the
AH I/O
reading—if the battery’s charge ef
fi
ciency is known. For example, if
you set the charge ef
fi
ciency to 90%, and 100 AHrs are removed from the
battery, the
AH I/O
display would read
000
only after 111 AHrs have been
returned to the battery.
Figure 8-2, Adjusting the Charge Ef
fi
ciency Setting
If the charge ef
fi
ciency is manually set and inaccurate, the SOC information
will be more inaccurate with every charge. For this reason, continually
monitor the
AH I/O
display under the remote’s METER button.
To access the
AH I/O
display:
press the METER button, turn the SELECT
knob until the
03 BM: Meters
menu appears, press the SELECT knob again,
and then turn the SELECT knob to the
AH I/O
display.
After several charge/discharge cycles (below 80% SOC), the
AH I/O
reading
should be slightly positive when the
02 BM:
SOC
Batt SOC
display reads
99%
.
To view the
Batt SOC
display:
press the METER button, turn the SELECT
knob until the
02 BM: SOC
menu appears. If the
AH I/O
reading is below 000
(negative#) when the
Batt SOC
display reads
99%
, then increase the charge
ef
fi
ciency setting. If you
fi
nd that the
AH I/O
reading is substantially above
zero when
Batt SOC
reads
99%
, then decrease the charge ef
fi
ciency setting.
8.2
Adjusting the Batt AmpHrs Setting
It is important that the METER button’s
05 BM: Setup
menu’s
Batt Amphrs
setting is correct or else the calculations used to determine the
02 BM:
SOC
display will be inaccurate.
To access the
Batt AmpHrs
setting:
Press the METER button on the ME-
RC, and then rotate the SELECT knob until the display shows the
05 BM:
Setup
menu. When the
05 BM: Setup
menu appears, press the SELECT knob
to display the
BM Charge Eff
menu item. Turn the SELECT knob until the
BM
Amp Hours
menu appears. Press the SELECT knob to display the current
Batt Amphr
setting. Turn the SELECT knob to adjust the
Batt AmpHr
setting.
Press the SELECT knob to select and save the new setting.
8.0 Using a BMK: Setting Up
