Item No. / Artículo No / Article n° : 2003-5
Smart AC
®
Inverter 400W USB+
™
User’s Manual / Manual de Usuario / Guide d’Utilisation
Smart AC® 400W USB+™ by Wagan Tech
®
Thank you for purchasing the Smart AC® 400W USB+™ by Wagan Tech®.
With normal care and proper treatment, it will provide years of reliable
service. Please read all operating instructions carefully before use.
Your 400 Watt power inverter converts 12 volt DC vehicle battery power into
110 volts of AC power. You can use the inverter in your vehicle to operate
many appliances such as a small TV, laptop computer, tablets and e-readers,
power tools, and lights for emergency or camping use.
The inverter works with your vehicle’s engine turned on or off (accessory
mode). It provides a continuous output of up to 400 watts.
FEATURES
• 1,000W Peak Power: Allows you to power appliances that require a
large amount of initial (peak) power to work (such as many TVs and
motor-powered equipment).
• Overheat Protection: The inverter temporarily shuts itself down to
protect itself from overheating.
• Overload/Short Circuit Protection: The inverter automatically turns itself
off if the connected load is too high or if it shorts.
• Fuse: The inverter comes with a fuse already installed.
• Dual AC Outlets: Allows you to power two appliances at the same
time.
• Dual USB Power Port: Allows you to power up to 2 USB appliances.
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User’s Manual—Read before using this equipment
SPECIFICATIONS
All specifications are typical at nominal line, half load and 77ºF unless
otherwise noted.
Feature Specification
Input 12 V (10 V – 15 V) DC
Output 110 V AC
Output frequency 60 Hz
Output waveform Modified Sine Waveform
Continuous power 400 Watts
Surge Power 1,000 Watts
Efficiency Approximately 90%
Current drawn when no load < 0.3 Amps
Battery low shutdown 10.0 V ± 0.5 V DC
Thermal protection: shutdown 130 ºF ±10 ºF
Internal DC fuse 35 Amps
External DC fuse None
AC output Two 3-prong outlets
USB Power Ports 5 V, 2.1 A shared
Power switch DC input ON/OFF control
Dimensions (L x W x H) 6.6 in. x 3.9 in. x 1.9 in.
Net Weight 22.9 oz
©2014 Wagan Corporation. All Rights Reserved.
Wagan Tech and wagan.com are trademarks used by Wagan Corporation.
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Smart AC® 400W USB+™ by Wagan Tech
®
SAFETY PRECAUTIONS
• Keep away from children! The inverter produces the same amount of
power as your home AC wall outlets and is not to be treated like a toy.
• Do not use the inverter in a positively grounded vehicle.
• Do not attempt to open the inverter casing. Internal contents may be
hazardous and harmful.
• Do not operate the inverter in or around water. The voltage of the unit
makes it an electrical shock hazard if operated in wet conditions. Do
not let the cord of the inverter or any plugged in appliance’s cord get
wet.
• Avoid placing the inverter on or near heating vents, radiators or other
source of heat. Do not place the inverter in direct sunlight. Ideal air
temperature should be between 50 °F and 80 °F.
• Do not connect the AC inverter directly to another AC power source.
• If there is anything wrong with the inverter, disconnect all input and
output power (all AC, DC, and USB plugs).
• The following operations will damage the inverter and therefore void
Wagan’s warranty:
ം Reversing polarity by connecting the wires to the
incorrect terminals.
ം Connecting the inverter to a power source greater than
15 Volts DC.
ം Operating the inverter and battery in or around water.
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User’s Manual—Read before using this equipment
SET UP
• Make sure there is at least 2 inches of clearance around the inverter
for air flow. The inverter generates heat while in operation. This is
not a malfunction. However, if the inverter gets too hot, it will turn
off automatically. It is important to position the inverter in a way
that allows air to flow freely around it so the heat may disperse.
The inverter’s thermal protection prevents it from operating when its
temperature exceeds 130 ºF ±10 ºF.
• If you operate the inverter in a moving vehicle, you need to secure the
inverter to prevent it from shifting around while the vehicle is moving.
PRODUCT USAGE DIAGRAM
©2014 Wagan Corporation. All Rights Reserved.
Wagan Tech and wagan.com are trademarks used by Wagan Corporation.
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Smart AC® 400W USB+™ by Wagan Tech
®
OPERATION
1. Disconnect the inverter before starting the vehicle’s engine.
2. Determine the right operating voltage for both input and output of the
inverter.
3. Connecting:
Most vehicle cigarette lighter sockets are fused at 10A or 15A. When
using vehicle cigarette lighter socket, do not exceed 120W or 180W,
respectively. Doing so will blow the vehicle cigarette socket fuse.
A. Connecting to vehicle’s 12V DC cigarette lighter socket:
i. Unscrew the red cover for the positive (+) input terminal of the
inverter.
ii. Attach the red (+) output of the DC plug to the terminal.
iii. Secure the terminal with the cover.
iv. Repeat the process with the black, negative (−) terminal,
matching DC plug output.
B. Connecting to a battery:
i. Unscrew the red terminal cover of the inverter.
ii. Attach the red, positive (+) cable to the positive terminal.
Secure the wire with the terminal cover.
iii. Attach the other end of the cable to the red, positive (+)
terminal of the battery.
iv. Repeat the process with the black, negative (−) terminal,
matching black cable.
4. Turn on the power switch (located at the front of the inverter). The
green LED will light up indicating that the unit is working.
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User’s Manual—Read before using this equipment
5. Plug your appliances into the AC oulets or mobile electronics to the
USB power ports at the front of the inverter.
6. When you are not using the inverter, turn the power switch off and
disconnect the inverter from power supply.
MEASURING THE AC VOLTAGE
This inverter’s AC output is a modified sine wave (MSW) at 115 volts AC. The
figure below compares a modified sine wave to a pure sine wave.
Modified Sine Wave (MSW) Pure Sine Wave
This modified sine wave has a root mean square (RMS) voltage of 115 volts.
Most ordinary AC voltmeters are calibrated to read “average” voltage and
assume that the AC waveform will be a pure sine wave. These meters will
not correctly read MSW voltage, and will display about 20 to 30 volts too
low. Any multi-meter identified as “TRUE RMS” will accurately read MSW
correctly.
ADDING AN EXTENSION CORD
Using an extension cord will reduce power output. However, if you need an
extension cord, we recommend placing the extension cord between the AC
output of the inverter and the AC appliances. You may use up to 100 feet of
high quality extension cord.
©2014 Wagan Corporation. All Rights Reserved.
Wagan Tech and wagan.com are trademarks used by Wagan Corporation.
6
Smart AC® 400W USB+™ by Wagan Tech
®
MAINTENANCE
Very little maintenance is required to keep the inverter operating properly.
Keep it clean and dry.
TROUBLESHOOTING
Buzz in Audio Systems
Some stereo systems and boom boxes will emit a buzzing noise from their
loudspeakers when operating with a power inverter. The power supply in the
device does not adequately filter the modified sine wave produced by the
power inverter. The only solution is to use a sound system that incorporates a
higher quality power supply.
Operating a Television
Picture tubes have a degaussing coil that uses a high initial surge of power to
light up the screen from a “cold start.” If the TV does not start up on the first
attempt, try switching the TV on and off consecutively every 2 to 3 seconds
(it may take 2 to 5 tries before starting).
Television Interference
Operating the power inverter can interfere with television reception on some
channels. If this situation occurs, the following steps may help to alleviate the
problem:
• Make sure that the chassis ground lug on the back of the power
inverter is solidly connected to the ground system of your vehicle.
• Do not operate high power loads with the power inverter while
watching television.
• Make sure that the antenna connected to your television provides an
adequate static-free signal and that you are using a good quality
cable between the antenna and the television.
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User’s Manual—Read before using this equipment
• Move the television as far away from the power inverter as possible.
• Keep the cables between the battery and the power inverter as short
as possible and twist them together with about 2 to 3 twists per foot.
This minimizes radiated interference from the cables.
Condition Solution
Poor contact Clean contact parts thoroughly
Battery voltage is too low Start the engine to recharge the battery.
Replace the battery if needed.
Shutdown on overload Reduce the inverter’s wattage load
Thermal shutdown Allow the inverter to cool down by reducing
the load or turning it off for a while.
Receptacle has no power Check the receptacle wiring.
©2014 Wagan Corporation. All Rights Reserved.
Wagan Tech and wagan.com are trademarks used by Wagan Corporation.
8
WAGAN CORP. LIMITED WARRANTY
The WAGAN Corp warranty is limited to products sold only in the United States.
All Wagan Tech products must be registered within (30) days of purchase to activate its
warranty. To register your product, please visit http://tinyurl.com/waganwarranty. Be sure to
keep the original receipt as it will be required when returning a product under the warranty.
Warranty Duration: This product is warranted to the original purchaser for a period of one
(1) Year from the original purchase date, to be free of defects in material and workmanship.
WAGAN Corporation disclaims any liability for consequential damages. In no event will
WAGAN Corporation be responsible for any amount of damages beyond the amount paid
for the product at retail.
Warranty Performance: During the above one (1) Year warranty period, a product with a
defect will be replaced with a comparable model when the product is returned to WAGAN
Corporation with an original store receipt. The replacement product will be in warranty for
the balance of the original one (1) Year warranty period.
To return a defective item, please contact WAGAN Corporation at (800) 231-5806 to obtain
a Returned Merchandise Authorization number (RMA#), and return instructions. Each item
returned will require a separate RMA#. After you have received the RMA# and the return
instructions from WAGAN Corporation, please follow the instructions and send the item with
PREPAID SHIPPING, along with all of the required documentation, a complete explanation
of the problem, your name, address and daytime phone number. WAGAN Corporation will,
at its option, replace or repair the defective part.
A Returned Merchandise Authorization number (RMA#) is REQUIRED when sending in any
defective item. WAGAN Corporation is not responsible for any item(s) returned without
an official Returned Merchandise Authorization number. The item(s) must be returned
with prepaid shipping. WAGAN Corporation is not responsible for any shipping charges
incurred in returning the item(s) back to the company for repair or replacement. This
warranty is void if the product has been damaged by accident, in shipment, unreasonable
use, misuse, neglect, improper service, commercial use, repairs by unauthorized personnel
or other causes not arising out of defects in materials or workmanship. This warranty does
not extend to any units which have been used in violation of written instructions furnished.
Warranty Disclaimers: This warranty is in lieu of all warranties expressed or implied and
no representative or person is authorized to assume any other liability in connection with
the sale of our products. There shall be no claims for defects or failure of performance or
product failure under any theory of tort, contract or commercial law including, but not limited
to negligence, gross negligence, strict liability, breach of warranty and breach of contract.
©2008 WAGAN Corp. REV2013
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