Magnum Energy ME-ARC Series Owner's Manual page 76

7.0 Using an AGS Module
The BMK already uses voltage, time, and current to determine the true SOC
of the batteries, so little guesswork is needed to determine the settings.
• Set Start Gen SOC – This menu is used to set the SOC level for auto-
starting the generator.
Default setting: Set Start Gen SOC = OFF
Range: OFF, 20-90%
• Set Stop Gen SOC – This menu is used to set the SOC level for
autostopping the generator.
Default setting: Set Stop Gen SOC = 90%
Range: 21-100%
Info: There is no start or stop delay time needed since the ME-BMK
already displays an accurate state of charge of the batteries.
Where should I set Gen Run SOC? Most battery manufacturers recom-
mend that for optimum life, deep-cycle batteries should not be discharged
below 50% SOC. The ME-BMK determines the battery's SOC by using a DC
shunt to measure the fl ow of current in and out of the battery. The SOC
meter gives you an accurate reading of remaining capacity in the battery
bank. Set the Start Gen SOC level to 50%, or to 60% if you do not want to
discharge the batteries quite as much. When considering the Stop Gen SOC
setting, keep in mind that running the generator past 90% SOC delivers
very little current to get that last 10% into the batteries. Thus, it is common
to stop the generator at 90% to save fuel and run time on the generator.
However, if the SOC stop setting is less than 100%, the batteries should be
charged to 100% as often as possible (~ once a week, or every other dis-
charge cycle) in order to avoid sulfation of the battery plates.
SETUP: 04E Gen Run Temp Menu
This menu allows you to set and enable a temperature value that will auto-
matically start the generator—typically to power an air conditioner for cool-
ing—based on an increase in temp, or by using an A/C thermostat control.
Info: The optional ME-PT1 or ME-PT2 pigtail adapters can be used to
connect an A/C or relay control circuit. For more information, refer
to the instruction sheet for each pigtail adapter (part number 64-
0025 for ME-PT1 instructions, or 64-0026 for ME-PT2 instructions).
Info: This temperature autostart feature requires that the AGS's
remote temp sensor cable or an optional ME-PT1 or ME-PT2 pigtail
adapter be connected to the AGS's REMOTE port. When using the
remote temperature sensor, the location of the temperature sensor
determines the area being monitored for temperature.
• Set Gen Run Temp Start – This menu is used to enable and set the
temperature that triggers a generator autostart.
65F - 95F (18C - 35C) – These settings determine the rising tempera-
ture value that triggers a generator temperature autostart.
Ext Input – This setting is used when an optional pigtail adapter (ME-
PT1, or ME-PT2) is used. When an AGS pigtail adapter is connected to
the AGS's REMOTE port, an external command—either from a thermo-
stat connection on an air conditioner control circuit or an external relay
control circuit—is recognized and causes the generator to start.
Default setting: Set Gen Run Temp Start = OFF
Range: OFF, Ext Input, 65-95F or 18-35C
70 © 2012 Magnum Energy, Inc.