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Page 7
When you turn on a device or a tool that runs on a motor, the device basically
goes through two stages:
1.
Start Up – Requiring an initial surge of power (commonly known as the
“starting” or “peak” load).
2.
Continuous Operation – Power consumption drops (commonly known
as the “continuous load”).
The wattage (WATTS) or amperes (AMPS) can normally be found stamped or
printed on most devices and equipment, or in the user’s manual. Otherwise,
contact the manufacturer to find out whether the device you want to use is
compatible with a modified sine wave.
To calculate the wattage:
Wattage = AMPS x 120 (AC Voltage).
To calculate the starting load:
Starting Load = 2 x WATTS.
In general, the startup load of the device or power tool determines whether
your converter has the capability to power it.
To calculate the continuous load:
Continuous Load = AMPS x 120 (AC Voltage).
IMPORTANT: Always run a test to establish whether the converter will
operate a particular piece of equipment or device. In the event of a power
overload, the converter is designed to automatically shut down. This
safety feature prevents damaging the converter while testing devices and
equipment within the wattage range of the converter.
IMPORTANT: When using the vehicle’s 12 volt accessory port, this converter
is designed to supply 60 to 70 watts when the vehicle is not running. With
the vehicle’s engine running, it can supply up to 100 watts. To use the full
output, you must connect the converter directly to your battery.
NOTE: The 100 watt limit is to accommodate the fuse ratings for all vehicles.
Some vehicles may allow the full output. If the fuse blows when you switch
on the device you are trying to use, you have to either use a smaller device
or you must connect the converter directly to the battery.
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