Whistler PP500AC - Page 3

OWNER’S MANUAL
Getting Off To A Good Start
Power equipment and appliances which operate with motors or tubes
require an initial surge of power to get them up and running. This power
surge is referred to as the “starting load” or “peak load.” (By comparison,
devices such as standard light bulbs do not require a starting load). Once
the equipment or appliance has been powered up, it settles down to a
slower pace and requires far less electrical power to operate. This lower
power requirement is referred to as the “continuous load.”
In order to ensure that the capacity of your WHISTLER 500 is sufficient to
meet the required start up load, you must first determine the power
consumption of the equipment or appliance you plan to operate.
Power consumption is rated either in wattage or in amperes and infor -
mation regarding the required “watts~~ or amps” generally is stamped
or printed on most appliances and equipment. If this information is not
indicated on the appliance or equipment, check the owner’s manual or
contact the manufacturer.
Ifthe power consumption is rated in amps, multiply the number of amps
by 110 (AC voltage) to determine the comparable wattage rating. As a
general rule, you can determine the required start up load by multiplying
the wattage rating by 10.
For further information on the fundamental operating principles of
inverters and related data, see the section in this manual entitled “For
You Technical Types.”
Don’t Push It.
Although your WHISTLER inverter has the capacity to provide power
output (excess current) equal to approximately two times its rated
wattage capacity for a very brief period, it is designed to operate equip -
ment and appliances with start up load wattage ratings no higher than
its own maximum continuous wattage rating.
For example, the 500 model has a maximum continuous rating of 500
watts. Although this model has the capacity to briefly provide up to 800
watts of power (that is, excess current), it is designed to operate equip -
ment and appliances with start up load requirements of 500 watts or less.
Consequently, if the start up load rating of your equipment or appliance
is in the 500 watt range, the WHISTLER 500 may not have the capacity
to provide the required start up load.
To determine whether the WHISTLER 500 will operate a particular piece of