Magnum Energy ME-RC Remote - Manual (Page 81)

©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 Effi ciency Setting
The Charge Effi ciency setting determines how the battery monitor calculates
the battery’s charge effi 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 effi ciency set to Auto. This
allows the battery monitor to automatically calculate variables that affect the
charging effi ciency—such as battery type, battery age, and how the batteries
are maintained—which is not always constant. With the Auto setting, the
effi 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 effi ciency is known. For example, if
you set the charge effi 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 Effi ciency Setting
If the charge effi 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
effi 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 effi 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