Cobra Electronics CPI 450 Quick Evaluation Before Installation, Cobra 400 Watt Output Waveform

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Important Safety Information

Introduction

WARNING Power inverters contain components that can produce arcs or sparks. To prevent fire or explosion, do not install the inverter in areas or compartments containing batteries or flammable materials or in locations that require ignition- protected equipment.

WARNING To reduce the risk of fire, do not cover or obstruct the ventilation openings. Do not install inverter in zero-clearance compartment.

Warning:Wash Hands After Handling Power Cord

The power cord on this product contains lead, a chemical known in the state of California to cause birth defects or other reproductive harm.

Caution: Rechargeable Appliances

Certain chargers for small nickel cadmium batteries can be damaged if connected to the Cobra 400 watt inverter. Two particular types of equipment are prone to this problem:

Quick Evaluation

Before Installation

Introduction

Cobra 400 Watt Output Waveform

Some very sensitive electronic equipment may not operate satisfactory on “square wave” or “modified sine wave.” The output waveform is referred to as “square wave” or “modified sine wave.” It is a stepped waveform designed to have characteristics similar to the sine wave shape of utility power. A waveform of this nature is suitable for most AC loads (including linear and switching power suppliers used in electronic equipment, transformers and motors).

Quick Evaluation Before Installation

This section provides you with basic information about the inverter and how to check its performance before installation.

Be sure to have on hand:

A 12 volt DC power source (such as a vehicle battery).

Power SupplyThe power source must provide between 11 and 15 volts DC and

be able to supply enough current to run the test load. As a rough guide,

Plug In Directly

Dangerous Voltages

1.Small battery-operated appliances such as flashlights, razors, and night lights that can be plugged directly into an AC receptacle to recharge.

2.Certain battery chargers for battery packs used in hand power tools. These chargers have a WARNING label stating that dangerous voltages are present at the battery terminals.

divide the wattage of the test load by 10 to get the current (in amperes) the power source must deliver.

The provided two foot cigarette lighter cable and two foot direct-to-battery 12 gauge cable.

Only use the cables provided with your inverter.

The cigarette lighter cable is suitable for operating the inverter at loads up to 150 watts. Connect by securely inserting the plug into the cigarette lighter socket.

Cig. Lighter Cable

12 Gauge Cable

This problem does not occur with the vast majority of battery operated equipment. Most use a separate charger or transformer that is plugged into the AC receptacle and produces a low voltage output. If the label on the AC adapter or charger states that it produces a low voltage AC or DC output (less than 30 volts), the inverter will have no problem powering the adapter safely.

CAUTION Do not use the cigarette lighter cable for loads higher than 150 watts. When connecting loads larger than 150 watts, please connect the inverter directly to the battery.

 

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Contents How Your Cobra Power Inverter Works Cobra line of quality products includesOur Thanks to You Hours a day, 7 days a week 773-889-3087 phoneContents Product FeaturesMaintenance Product Service Important Safety Information Important Safety InformationGeneral Precautions Quick Evaluation Before Installation Quick Evaluation Before InstallationCobra 400 Watt Output Waveform Be sure to have on handInstallation Requirements Mounting Connecting Cables Connecting CablesIs not covered by the warranty Mounting To mount your inverterConnect cable to the power source Power Consumption Power ConsumptionTo determine the battery ampere-hour capacity you require Power and Protection Indicators Operating Limits Troubleshooting Guide SpecificationsTroubleshooting Guide SolutionFor Products Purchased Outside the U.S.A Warranty and Trademark AcknowledgementTrademark Acknowledgement