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©2010 Enerdrive Pty Ltd
Operation
5.1 METER Menu Items and Settings
Press the METER pushbutton on the ME-RC to access different meters, which help
determine the status of the inverter/charger and battery system.
Figure 5-1, Accessing the METER Menu Items
01 INV/CHG Meter - This menu provides the DC voltage and current of the in-
verter/charger only while either inverting or charging.
The DC: V (Volts) display provides the voltage from the batteries connected to the
inverter. The DC: V accuracy is ±1.5% with a 0.1 VDC resolution.
While inverting, the DC: A (Amps) display shows the battery current used by the
inverter. If you are charging, the DC A (amps) display shows the amount of cur-
rent delivered to the batteries. The accuracy of this display below 1 amp AC (~10
amps DC @ 12VDC) is not detected. When the current into or out of the batteries
is greater than 1 amp AC, the display accuracy is ±20%.
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 avail-
able capacity left in the battery. 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 first 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 batteries 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 considerably 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.
