Magnum Energy Battery Monitor Kit ME-BMK - Manual (Page 17)

13 © 2010 Magnum Energy, Inc.
Using the ME-RC50 Remote with the BMK
3.6 ME-RC50 METER Menu Items and Settings for BMK
Press the METER pushbutton on the ME-RC50 to access the different meters
that determine the status of the inverter/charger and battery system.
Figure 3-4, Accessing the METER Menu Items (ME-RC50)
01 INV/CHG Meter – This menu provides the DC voltage and current of the
inverter/charger when inverting or charging. These are not BMK readings.
02 BM: SOC – This display is the best way to monitor the actual state of
the battery. The read only display shows the State Of Charge (SOC) for the
connected battery bank. The SOC represents the condition of the battery as
a percentage of the available capacity left in the battery. The range is 0% to
100%, where 100% represents a fully charged battery and 0% means the
battery is completely discharged.
When the Sense Module is fi rst connected, the batteries will need to be fully
charged (i.e., SOC = 100%) at least once to establish a SOC reference point.
While this reference point is being calculated, the display will show “Think’n”,
to indicate that the SOC reference point is being calculated. After the batter-
ies are fully charged, the display will change from “Think’n” to “100%” and
begin to provide accurate SOC percentage values.
Info: “Think’n” can take up to several days depending on the charge
source and its ability to completely recharge the batteries (e.g., a
small PV array may not be large enough to replace all the amp-hrs
in a reasonable amount of time).
If the Sense Module is disconnected from power, this display resets to “Think’n”
and the batteries will require another full charge before this display begins
providing SOC percentage information.
Info: Try to limit battery discharging to 50% of capacity (keep
battery above 50% SOC). If batteries are allowed to be continually
discharged below 50% SOC, their effective service life will be con-
siderably shorter. This 50% rule has been determined to be the best
compromise between available energy and the maximum number of
discharge cycles a battery can provide.
Press the SELECT
knob to “select”
your desired menu
item
METER
Press the
METER
pushbutton
Status…
01 INV/CHG Meter
Status…
06 BM: TECH
Rotate the
SELECT knob to
find your desired
menu item