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9
• Certain rechargeable devices are designed to be charged by plugging them
directly into an AC receptacle. These devices may damage the inverter or the
charging circuit.
• When using a rechargeable device, monitor its temperature for the initial ten
minutes of use to determine if it produces excessive heat.
• If excessive heat is produced, this indicates the device should not be used
with this inverter.
• This problem does not occur with most of the battery-operated equipment.
Most of these devices use a separate charger or transformer that is plugged
into an AC receptacle.
• The inverter is capable of running most chargers and transformers.
Note: Some laptop computers may not operate with this inverter.
Power Inverter Output Waveform
The AC output waveform of this inverter is known as a modified sine wave.
It is a stepped waveform that has characteristics similar to the sine wave
shape of utility power. This type of waveform is suitable for most AC loads,
including linear and switching power supplies used in electronic equipment,
transformers, and small motors.
120 VOLT AC POWER OUTLET
Rated Versus Actual Current Draw of Equipment
Most electrical tools, appliances, electronic devices and audio/visual
equipment have labels that indicate the power consumption in amps or watts.
Be sure that the power consumption of the item to be operated is below 200
watts. If the power consumption is rated in amps AC, simply multiply by the AC
volts (120) to determine the wattage.
Resistive loads are the easiest for this unit to run; however, it will not run
larger resistive loads (such as electric stoves and heaters), which require far
more wattage than the unit can deliver on a continuous basis. Inductive loads
(such as TVs and stereos) require more current to operate than do resistive
loads of the same wattage rating.
Power Inverter Output Waveform
The AC output waveform of this unit is known as a modified sine wave. It
is a stepped waveform that has characteristics similar to the sine wave
shape of utility power. This type of waveform is suitable for most AC loads,
including linear and switching power supplies used in electronic equipment,
transformers, and small motors.
Protective Features
The inverter monitors the following conditions:
Low internal battery
voltage
The inverter will automatically shut down when
the battery voltage drops too low, as this can
harm the battery.
High internal battery
voltage
The inverter will automatically shut down when
the battery voltage is too high, as this can
harm the unit.
Thermal shutdown
protection
The inverter will automatically shut down when
the unit becomes overheated.
Overload/short circuit
protection
The inverter will automatically shut down when
an overload or short circuit occurs.
IMPORTANT NOTES:
The AC Power Outlet provides a total power draw of 200W.
When the AC Power Outlet is in use, the unit will monitor for the following fault
conditions: thermal fault, low and high battery voltage fault, overload and short
circuit (refer to the “Protective Features” section).
1. If a low internal battery voltage fault condition exists, the AC Power Outlet
will shut down automatically and the backlit LCD screen will display the
following until the fault is corrected:
The Digital Display will show “AC”; the EMPTY Battery Status Icon and
Fault Icon on the LCD Screen will flash.
2. If the high internal battery voltage fault condition exists, the AC Power
Outlet will shut down automatically and the backlit LCD screen will
display the following until the fault is corrected:
The Digital Display will show “AC”; the FULL Battery Status Icon and Fault
Icon on the LCD Screen will flash.
3. If a thermal, overload or short circuit fault condition exists, the AC Power
Outlet will shut down automatically and the backlit LCD screen will
display the following until the fault is corrected:
The Battery Status Icon will light solid; the “AC” on the Digital Display and
the Fault Icon on the LCD Screen will flash.
Should any of the above fault conditions occur:
1. Disconnect the appliance from the unit.
2. Press the AC Power Button to turn the AC Power Outlet off.
3. Make sure the unit does not need to be recharged.
4. Allow the unit to cool down for several minutes.
5. Make sure the rating of the appliance plugged into the unit is 200 watts
or lower and that the appliance cord and plug are not damaged.
6. Assure there is adequate ventilation around the unit before proceeding.
Using the 120 Volt AC Outlet
The 120 Volt AC Outlet is located on the front of the unit. The outlet supports a
maximum power draw of 200 watts.
1. Press the AC Power Button to turn on the 120V AC Power Outlet. A beep
will sound and the LCD Screen will display the following:
The Battery Status Icon lights solid and the Digital Display shows “”AC”,
indicating the AC outlet is ready to use.
2. Insert the 120 volt AC plug from the appliance into the 120 Volt AC Outlet.
3. Switch on the appliance and operate as usual.
Note: Ensure that the wattage of the equipment plugged into the 120V
AC Power Outlet does not exceed 200 watts continuous.
4. Press the AC Power Button again to turn off the 120V AC Power Outlet.
Periodically check the unit’s battery status on the backlit LCD screen. Four
solid bars in the battery icon indicates a full battery. When the battery level
is nearly empty with only one solid bar or completely empty with 4 empty
bars, the unit must be recharged at this time or the unit’s built-in low voltage
protection will activate. The empty Battery Status Icon will flash for a short
period of time before automatic shut down.
IMPORTANT: Make sure the AC Power Outlet is turned off when the unit is
being recharged or stored.
USB CHARGING PORT
The USB charging port is under the same protective cover as the 12 volt DC
outlet. Refer to the Features section to locate.
1. Press the AC/USB power power button to turn the USB port on. A beep
will sound and the backlit LCD screen will continuously display the
following:
The “5V USB” icon indicates that the USB port is ready to use.
2. Plug the USB-powered device into the USB power port and operate
normally.
The USB power port remains on until the USB Power button is pressed again
to turn it off. Make sure the USB Power Button is in the off position when the
unit is being recharged or stored.
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