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4. Connect a length of wire on one side of the fuse holder or circuit breaker. Connect the other end of the wire to the positive
(+) terminal of the inverter.
5. Connect a length of wire between the inverter's negative (–) terminal and the DC power source negative (–) terminal.
6. Connect a short length of wire to the other terminal of the fuse holder or circuit breaker. Mark it "positive" or "+".
7. Connect the free end of the fuse or breaker wire to the positive (+) terminal of the DC power source (battery).
8. Insert a fuse appropriate to the inverter in the fuse holder.
9. Press the translucent on/off button.
10. The 120W and 500W LED Indicators will light, indicating that the inverter is operating properly and is ready to power
appliances that draw up to 500 watts continuous.
11. Test the inverter by plugging in a 120 watt lamp or equipment.
Note:
If the power/fault LED flashes red, the unit emits three beeps every five seconds, the 120W and 500W LED Indicators do not light and the AC and USB
outlets shut down, a fault condition has occurred. Refer to the "Troubleshooting" section of this manual.
CAUTION
• The cable and fuse sizes given here are a general recommendation. You should always consult your National Electrical Code
prior to beginning each specific installation.
• Loose connectors may cause overheated wires and melted insulation.
• Check to make sure you have not reversed the polarity. Damage due to reversed polarity is not covered by our warranty.
IMPORTANT CABLE INFORMATION
Substantial power loss and reduced battery operating time results from inverters installed with cables that are not able to
supply full power. Symptoms of low battery power can result from cables that are either excessively long or an insufficient
gauge.
Connection To Load
The Power Inverter is equipped with dual standard North American three-prong type outlets. Plug the cord from the equipment
you wish to operate into the AC receptacle(s). Make sure the combined load requirement of your equipment does not exceed
maximum continuous power.
The Power Inverter is engineered to be connected directly to standard electrical and electronic equipment in the manner
described above. Do not connect the Power Inverter to household or RV AC distribution wiring. Do not connect the Power
Inverter to any AC load circuit in which the neutral conductor is connected to ground (earth) or to the negative of the DC
(battery) source.
WARNING: Do not connect to AC distribution wiring!
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 500 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 the inverter to run; however, it will not run larger resistive loads (such as coffee makers,
electric stoves and heaters), which require far more wattage than the inverter can deliver. Inductive loads (such as TVs and
stereos) require more current to operate than do resistive loads of the same wattage rating.
Inductive loads, i.e. power tools
Note: Some motors used in power tools, refrigerators and pumps require a very high surge current to start. This inverter can
handle a surge twice it's rated power but some motors require more than this when started. The inverter will not be harmed if
you try to start such a product it will simply shutdown on overload.
For safety reasons, the unit will simply shut down if it is overloaded. To restart the unit, simply unplug all devices plugged into
the unit; disconnect the unit from any 12 volt DC power source; then reconnect the unit before plugging the appliance back in.
Reading the Power/Fault LED
The power/fault LED is located inside the translucent On/Off Button. Press the On/Off Button once to turn the unit on. The
Power/Fault LED lights or flashes in one of three colors, indicating the following:
Blue: The inverter is properly connected to a functioning DC power source and is operating at full voltage; the AC outlets and
USB charging port are ready to use.
Orange: The inverter is properly connected to a functioning DC power source and is operating at partial voltage. The AC and
USB outlets are active; however this indicates the inverter will shut down soon as the power source voltage is low.
Red (flashing): A fault condition has occurred. The unit emits three beeps every five seconds, and the AC and USB outlets are
automatically shut down. Refer to the Protective Features Section and the Troubleshooting Section of this Instruction Manual.
Press the On/Off Button to turn the inverter off, correct the fault and then press the On/Off Button again to turn the inverter
back on.
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Operation of the 120 Volt AC Outlets
1. Connect the inverter to a functioning 12 volt DC power source as described in this Instruction Manual. If using the 12 Volt
DC Vehicle Accessory Adapter, rotate the vehicle accessory plug slightly to make sure there is good contact. Make sure there
is adequate space for proper ventilation of the inverter.
2. Press the translucent on/off button to turn the unit ON.
3. Depending on the power source, either the 120W LED Indicator or both the 120W and 500W LED Indicators will light. If
these LEDs do not light or if the power/fault LED flashes red, please refer to the "Troubleshooting" section of this manual.
4. Plug the (110/120 volt AC) appliance into one of the Inverter's three-prong AC outlet and operate normally.
Notes:
This inverter has two three-prong AC outlets that can be rotated forward and upward to maximum of 90 degrees to adjust the orientation. Do not
attempt to forcibly rotate the AC outlets beyond its maximum angle.
Ensure that the wattage of all equipment simultaneously plugged into the inverter does not exceed 120 watts continuous through the supplied DC
Vehicle Adapter plug, and 500 watts continuous via the supplied Battery Clips with Slide-In Connectors.
Some laptop computers may not operate with this inverter.
The Inverter will not operate appliances and equipment that generate heat, such as coffee makers, hair dryers, electric blankets, microwave ovens and
toasters.
Remember to disconnect the inverter from any power source when not in use.
Operation of the USB Charging Port
1. Connect the inverter to a functioning 12 volt DC power source as described in this Instruction Manual. If using the 12 Volt
DC Vehicle Accessory Adapter, rotate the vehicle accessory plug slightly to make sure there is good contact. Make sure there
is adequate space for proper ventilation of the inverter.
2. Press the translucent on/off button to turn the unit ON.
3. Depending on the power source, either the 120W LED Indicator or both the 120W and 500W LED Indicators will light. If
these LEDs do not light or if the power/fault LED flashes red, please refer to the "Troubleshooting" section of this manual.
4. Plug the USB-powered device into the inverter's USB Charging Port and operate normally.
Notes:
This unit's USB Charging Port does not support data communication. It only provides 5 volts/2A DC power to an external USB-powered device.
Some USB-powered household electronics may not operate with this USB charging/power port. Check the manual of the corresponding electronic
device to confirm that it can be used with this type of USB charging/power port.
Not all mobile phones are provided with a charging cable, they are normally data cables which are not supported by this device – please check with
your mobile phone manufacturer for the correct charging cable.
Remember to disconnect the inverter from any power source when not in use.
CARE AND MAINTENANCE
Storage
1. Ideal storage temperature range is 0-40°C (32-104°F).
2. Store and use the PI500PS in a cool, dry place with adequate ventilation for all-around air circulation.
3. Avoid locations that are exposed to heating units, radiators, direct sunlight, or excessive humidity or dampness.
Fuse Replacement (in Vehicle Accessory Outlet Plug)
If the inverter is overloaded, and the Power/Fault LED is not lit, the internal 12 amp fuse may be blown.
1. Unscrew the flange of the plug (counterclockwise).
2. Remove the end contact, flange and fuse.
3. Inspect the fuse to see if it is good or blown.
4. Replace with a new 12 amp fuse, if needed.
5. Carefully reassemble the fuse, end contact and flange. Do not overtighten the flange (clockwise).
TROUBLESHOOTING
Common Audio/Visual Problems
Buzzing sound in audio systems
Some inexpensive stereo systems and boom boxes make a buzzing sound when operated from the inverter, because the power
supply in the electronic device does not properly filter the modified sine wave produced by the inverter. The only solution to
this problem is to use a sound system that has a higher quality power supply.
Television Interference
The inverter is shielded to minimize interference with TV signals. However, in some instances, some interference may still be
visible, especially when the TV signal is weak. Try the following to improve the picture:
1. Move the Inverter as far away as possible from the TV set, the antenna, and the antenna cables. Use a short AC extension
cord, if necessary.
2. Adjust the orientation of the antenna cables, and the TV power cord to minimize interference.
3. Make sure that the antenna feeding the TV provides an adequate (snow-free) signal and that high quality, shielded
antenna cable is used.
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