Schumacher PIF-2000 - Manuel (Page 9)

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NOTE: You may hear a “buzzing” sound being emitted from inexpensive sound systems when
operated with the inverter. This is due to ineffective filters in the sound system’s power supply.
Unfortunately, this problem can only be resolved by purchasing a sound system with a higher
quality power supply or higher quality filter.
POWER SOURCE 7.
When operating a device that draws approximately 60 watts, your average automobile
or marine battery at full charge will provide an ample power supply to the inverter for
approximately 3 hours when the engine is off. The actual length of time the inverter will
function depends on the age and condition of the battery and the power demand being placed
by the device being operated with the inverter.
If you decide to use the inverter while the engine is off, we recommend you turn OFF the
device plugged into the inverter before starting the engine. To maintain battery power, start
the engine regularly and let it run for approximately 15 to 20 minutes to recharge the battery.
Although it is not necessary to disconnect the inverter when turning over the engine, it may
briefly cease to operate as the battery voltage decreases. While the inverter draws very low
amperage when not in use, it should be unplugged to avoid battery drain.
LED INDICATOR AND SHUTDOWN PROTECTION 8.
The LED lights RED automatically when plugged into a 12 volt DC power source and will not
light under the following conditions:
When the power input from the vehicle’s battery drops to approximately 10.5 volts, low 1.
battery shutdown occurs and the inverter shuts off. Solution: Recharge or Replace the
battery.
When the power input from the vehicle’s battery exceeds 15 volts, high voltage overload
2.
protection occurs. Solution: Reduce the voltage range to between 12 volts and 14 volts.
The continuous load demand from the equipment or device being operated exceeds
3.
the continuous load rating of the inverter being used. Solution: Use a higher capacity
inverter or lower rated device.
The case temperature becomes hot (exceeds 145°F). Solution: Allow the inverter to
4.
cool. Do not block the cooling slots or air flow over and through the inverter. Reduce the
load on the inverter to the continuous rated output.
RESET: To reset after shutdown occurs, push the On/Off button to turn the inverter OFF and
press the reset button. Check the source of the problem and correct. Push the On/Off button
to turn the inverter ON.
LED DISPLAY 9.
The LED display identifies the current status of the inverter.
VOLTS IN: The voltage of the vehicle’s battery, portable power jump starter or DC power
source.
VOLTS OUT: The voltage supplied to the device through the AC receptacle.
WATTS: The power or wattage supplied to the device plugged into the inverter. NOTE: The
tolerance of the display is ± 15% when the output power is higher than 200 watts.
An audio alarm will sound when any of the following codes display. To stop the alarm, press
the On/Off switch:
OUP • – The vehicle’s battery voltage is between 15 and 16 volts. The inverter will
automatically restart after the voltage drops below 15.0 volts.
OLP • – The continuous load demand from the device exceeds the inverter’s wattage
output.
OCP • – The inverter is overheated and automatically turns off for a period of 1 to 3
minutes to cool. Make sure the inverter is well ventilated. It will automatically restart
after it cools.
LUP • – Low Voltage Alarm. The vehicle’s battery voltage is between 10.7 and 11.3 volts.
LUP • – Low Voltage Shutdown. The vehicle’s battery voltage is between 10.2 and 10.8
volts.
OPP • – Short circuit, power surge or overload in the device.