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©
2014 Magnum Energy, Inc
.
Using a BMK: Monitoring
Figure 8-1, Ending Battery Voltage Verses Time
8.2.2
Monitoring the BMK using the ME-ARC
Use the ARC remote’s METER button to monitor battery bank information and to determine the
status of your battery system.
METER: 05 BMK Meters
This section describes what battery bank information is available from the battery monitor when
using the ARC remote.
• 05A
BMK
Status
– This menu selection offers read only displays that give the current operat-
ing status of the battery monitor. This selection also provides information to determine if there
is a power-up fault condition (see Table 8-1).
• 05B
Battery
SOC
– This read only menu either displays the calculated battery SOC (State of
Charge) for the connected battery bank—“Think’n” (to indicate the SOC is being calculated), or
identi
fi
es a fault condition.
Note:
Refer to Section 8.2.4 for information on BMK statuses/faults.
The range is 0%-100%, where 100% is a fully charged battery and 0% is completely dis-
charged. When the BMK sense module is
fi
rst connected, the display will show “
Think’n
”, to
indicate that the SOC reference point is being calculated. After the batteries are fully charged,
the display changes from “
Think’n
” to “
100%
” and begins to provide accurate SOC% values.
Note:
If the sense module is disconnected from power, this display resets to “Think’n” and the
batteries require another full charge before SOC percentage information is displayed.
• 05C DC Volts-BMK
– This meter displays the DC volts at the BMK input. The range is from
07.00 to 70.00 volts (±0.02)
• 05D
DC
Amps-BMK
– This meter displays the real-time charge current (amps into battery)
or discharge current (amps out of the battery) as measured through the BMK shunt. Charging
is shown as a positive (+) number and discharging is shown as a negative (–) number. The
range is from ±0.1 to 999 amps (±1.0%).
• 05E
AH
In/Out
– This meter displays the AH returned to or removed from the battery. When
this value is positive, it represents AH returned to the battery during any subsequent charging.
A negative value represents AH removed from a full battery. The range is ±32,768 AH. When
using the charge ef
fi
ciency’s
Auto
setting, the AH I/O value is recalculated after the battery
has been fully charged (100% SOC) and
≥
0.5% of the battery capacity has been discharged.
If the sense module is disconnected from power, the AH I/O value resets to zero.