Schumacher PI-400 - Manual (Page 2)

The advanced surge capacity of the PI-400 power invert-
er gives it the means to start most electrical appliances
including: Color televisions, TV/VCR combinations,
microwaves, refrigeration units, small air conditioners.
In addition, the PI-400 power inverter consumes less bat-
tery power, therefore runs for a longer time because it is
a state-of-the-art microprocessor-controlled inverter. It
runs cooler and is highly efficient.
Before Using PI-400
When you turn on an appliance or a tool that runs on a
motor, the appliance basically goes through two stages:
1. Start up - requiring an initial surge of power
(commonly known as the "starting load" or "peak
load").
2. Continuous operation - power consumption drops
(commonly known as the "continuous load").
Before using your power inverter, you need to calculate
these loads, i.e.:
1. Starting load (at start up).
2. Continuous load (on continuous operation).
The formula for power consumption (measured in either
WATTS (wattage) or AMPS (amperes)) is: AMPS x
110 (AC voltage) = WATTS. The wattage (WATTS) or
amperes (AMPS) can normally be found stamped or
printed on most appliances and equipment, or in the
user's manual. Otherwise, contact the manufacturer to
find out whether the device you are using is compatible
with a modified sine wave.
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