Schumacher PSI-2000 User Manual

Page 7

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7

4. The case temperature exceeds

140 ºF.

Attention: The PSI-2000 is fitted with

cooling fans that run as needed while

the inverter is operating. If the cool-

ing fans are unable to maintain a cool

enough temperature for safe operation,

the inverter will automatically shut

down. If the inverter automatically shuts

down or a continuous audible alarm is

heard:
1. Turn the inverter rocker switch to

the OFF (O).

2. Determine the source of the problem,

and resolve it before continuing to

use the inverter.

HoW Do PoWer InVerTerS

Work?

There are two stages involved in trans-

forming 12-volt DC (or battery) power

into 110V AC (household voltage):
STAge 1: The PSI-2000 power in-

verter uses a DC to DC transformer to

increase the 12-volt DC input voltage

from the power source to 145-volts

DC.

STAge 2: The inverter then converts the

145-volts DC into 110-volts AC (house-

hold voltage) using advanced MOSFET

transistors in a full bridge configuration.

A "modified sine wave" waveform is

generated by this conversion.

I.

IMPorTAnT SAfeTy MeASUreS

Precautions to keep in mind be-

fore and while using your power

inverter:

• For the most effective use, place the

power inverter on a flat surface.

• Keep the inverter dry.
• DO NOT allow it to come into contact

with rain or moisture.

• DO NOT operate the inverter if you,

the inverter, the device being operated

or any other surfaces that may come

in contact with any power source are

wet. Water and many other liquids can

conduct electricity, which may lead to

serious injury or death.

• Do not place the inverter on or near

heating vents, radiators or other

sources of heat.

• Do not place the inverter in direct

sunlight. The ideal air temperature

for operation is between 30º and

105ºF.

• Keep the inverter well ventilated

in order to properly disperse heat

generated while it is in use.

• While in use, make sure there are

several inches of clearance around

the top and sides of the inverter.

Do not use the inverter near flam-

mable materials.

• Do not place or install the inverter

in areas such as battery or engine

compartments where fumes or

gases may accumulate.

• Only connect the power inverter to a

12-volt battery. Connecting to a 6V

or 16V battery will cause damage to

the inverter.

• Only connect the power inverter to

a 12-volt battery with the supplied

12-volt power cords. Make sure the

cord connections to the inverter are

tight.

• Do not modify the positive and nega-

tive cables or plug in any way.

• Make sure the power consumption

of the device or equipment you want

to operate is compatible with the

capacity of the inverter, and does not

exceed 2000 watts.

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