Whistler PRO-400W - Manual (Page 7)

• The use of an extension cord from the inverter to the
appliance or equipment being operated will decrease the
power being delievered to the load. For best operating
results, the extension cord should be no more than 50 feet
long.
• Check frequently to ensure that the input and output
connections are secure. Loose connections may damage
the inverter or the power source or may generate
excessive heat.
Important Information on Battery Chargers
Using your inverter with battery chargers for power tools,
flashlights, video cameras and laptop computers may cause
damage to the inverter or the charging unit. Check with the
appliance manufacturer for compatibility with modified sine wave
inverters if you’re unsure.
Although we advise against it, if you attempt to use a charging
unit, monitor the temperature of the charging unit for
approximately 10 minutes. If the charging unit becomes unusually
warm, disconnect it from the inverter immediately.
Don’t Blow A Fuse.
This inverter is equipped with an internal spade type fuse(s). With
reasonable care, it should not be necessary to replace the fuse(s)
in your inverter.
Most blown fuses are the result of reverse polarity or a short circuit
within the appliance or equipment being operated. If the fuse(s)
OPERATION
• Pro-400W watt model - If the supplied cables are too
short to allow for placement of the inverter in a
desired location, the inverter may be connected to
the power source using a #8 wire, up to 12’. Use #4
wire for longer lengths. The steps outlined for making
the connection and the related safety precautions
remain unchanged.
7. Turn the inverter rocker switch to the ON (I) position.
The LED Indicator Light should glow GREEN
confirming that there is power running to the inverter.
8. Turn the inverter rocker switch to the OFF (O) position.
(The GREEN LED Power Indicator light may “blink”
briefly and/or the internal audible alarm may make a
momentary “chirp”. This is normal).
9. Confirm that the equipment or appliance to be
operated is turned off. Plug the equipment or
appliance into one of the AC receptacles on the front
panel of the the inverter.
10. Turn the inverter to the ON (I) position. Turn on the
equipment or appliance.
11. Plug the USB powered device into the inverter’s USB
power port.
Note:
• As indicated in Step 7 above, the audible alarm may
make a momentary “chirp” when the inverter is
turned OFF (O). The same alarm may also sound
when the inverter is being connected to or
disconnected from the 12 volt power source.
11
OPERATION
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