8.0 Using a BMK
96
© 2012 Magnum Energy, Inc.
METER: 04 BMK Meters
This section describes what battery bank information is available from the
battery monitor when using the ARC remote.
•
04A BMK Status
– This menu selection offers read only displays that give
the current operating status of the battery monitor. This selection also
provides information to determine if there is a power-up fault condition.
BM: Pwr-up Fault
– The battery monitor faulted when it was
powered-up. The fault occurred because the power-up self test failed.
See Section 7.0 “Troubleshooting” in your BMK owner’s manual.
BM: No Comm
– The battery monitor is not communicating with the
remote. This typically means a ME-BMK is not installed in the system.
If installed, refer to the ME-BMK Owner’s Manual to troubleshoot a
“No Comm” status.
BM: Ready
– The battery monitor is connected and actively monitor-
ing the battery system.
• 04B
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.
Info:
If the BMK has a power-up fault, this SOC screen will also
display “
Pwr-up Fault
”.
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.
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.
•
04C DC Volts-BMK
– This meter displays the real-time battery voltage
from 07.00 to 70.00 volts (± 0.02 volts).
•
04D DC Amps-BMK
– This meter displays the real-time charge current
(amps into the battery) or discharge current (amps out of the battery).
Charging is shown as a positive (+) number and discharging is shown
as a negative (–) number. The range is from ±0.1 to 999 amps, with a
1.0% accuracy.
• 04E AH In/Out
– This meter displays the amp-hours returned to or
removed from the battery. When this value is positive, it represents
amp-hours returned to the battery during any subsequent charging. A
negative value represents amp-hours removed from a full battery. The
range is ±32,768 AH.
