Samlex America S1500 - Manual (Page 8)

3. Introduction
This power inverter series is a the member of the most advanced line of mobile
AC power systems available.
To get the most out of the power inverter, it must be installed and used properly.
Please read the instructions in this manual before installing and using this model.
3-1. Front Panel Operations：
3-1-1. Front view：
3-1-2. ON / OFF switch：
Power ON/OFF switch, leave in the OFF position during installation.
3-1-3. Battery Voltage indicator：
The battery voltage bar graph indicates the voltage at the input
terminals of the power inverter. At low input current, this voltage is
very close to the battery voltage. At high input current, this voltage
will be lower than the battery voltage because of the voltage drop
across the cable and connections. Ideally, the voltage should remain
in the green Ares of the bar graph. If the voltage goes into the red
area at top and bottom of the graph, inverter may shutdown.
5