NOTE:
Because of wave-shape differences, using standard digital or analog
voltmeters may not correctly read the inverter output voltage. Unless a true RMS
voltmeter such as a
"Fluke 87"
,
"Fluke 8060A"
,
"Beckman 4410"
or
"Triplet
4200"
is used, the reading will be from 2 to 20 volts low.
4.0 OPERATION
NOTE:
Ensure that the total continuous power consumption of all tools and/or
appliances connected to the inverter (and in use) does not exceed the inverter’s
continuous watts rating. Also ensure that the start-up wattage for inductive
loads does not exceed peak watts for more than a second.
CAUTION:
Appliances such as
microwave ovens
will normal-
ly draw more than their rated current and could possibly overload
the inverter when operating simultaneously with other appliances.
For example: A 600 watt microwave oven draws approximately
940 watts.
4.1 POWER REQUIREMENTS:
Most electrical tools, appliances and audio/video equipment have labels that
show the unit’s power consumption in amps, watts, or both. To avoid inverter shut-
down and possible damage to the inverter, avoid exceeding the watt rating of
this unit. If the power consumption of the tool or device is rated in amps, multiply
the amps by 110/120 VAC to determine the wattage.
For instance, a power tool rated at 4 amps will draw 440 watts. The inverter
has built-in overload protection so that if you do exceed the watt continuous
duty limit, the inverter will automatically shut down. Once the excessive load is
removed, the inverter can be restarted and resume normal operation.
Note:
To
restart
the inverter, turn it off, and on. The on/off switch is located
on the front panel of the inverter.
The inverter powers resistive loads the easiest; however, larger resistive loads,
such as electric stoves or heaters, could draw more wattage than the inverter
can deliver on a continuous basis.
The following chart shows the approximate amperage at 110/120VAC and the
corresponding wattage at 110/120VAC for various common tools
and appliances.
APPLIANCE
AMPS@ WATTS@
110/120VAC 110/120VAC
LAPTOP COMPUTER
0.5
55
HOUSEHOLD POWER MIXER
2
220
240-WATT STEREO/AMPLIFIER
2.2
242
REFRIGERATOR
3
330
3/8" VARIABLE SPEED DRILL
3
330
VARIABLE SPEED JIG SAW
3
330
10-SPEED BLENDER
3.2
352
BELT SANDER
3.4
374
3/8" REVERSIBLE DRILL
3.5
385
HOUSEHOLD FOOD PROCESSOR
3.6
396
9
