Cobra Electronics CPI 300 Power Supply User Manual
Contents
1. or splash on it e cool Ambient air temperature should be between 30 and 105 F 0 and 40 C The cooler the better e ventilated Allow at least 1 inch 3 cm of clearance around the unit for proper air flow Make sure that ventilation openings on the ends of the unit are not obstructed gt CAUTION To prevent fire do not cover or obstruct ventilation openings Do not install the unit in a zero clearance compartment Overheating may result The inverter must only be connected to batteries with a nominal output voltage of 12 volts It will not work with a 6 volt battery and will be damaged if it is connected to a 16 volt battery Turning on Your Power Inverter Turn on your CPI 300 by pushing the ON OFF switch to ON The unit is now ready to deliver AC power to your loads If several loads are to be powered by the inverter turn them on separately AFTER the inverter has been turned on This will ensure that the inverter will not have to deliver the start up currents required for all loads at once CONTROLS amp INDICATORS On Off Switch The ON OFF switch turns the control circuit in the inverter on and off It DOES NOT disconnect power from the switched on for a few days However you should switch it off if you are not planning to recharge the battery within about a week inverter Fault Indicator JL WN OFF The fault indicator of your om ee switch CPI 300 will light2. CIFICATIONS Specifications Continuous output power 4 hours Continuous output power 30 minutes Surge rating 0 1second Peak efficiency 12V 1 2 load Efficiency full load 12V No load current draw Output waveform resistive load Output frequency Output voltage Input voltage Alarm voltage unload Shutdown voltage unload Operating temperature range Storage temperature range 300w 360w 550w 90 gt 83 lt 0 1 A 12 6V Perfect modified sine wave 60HZ 2HZ 110V 5 10 15 VDC 10 7 V 0 3V 10 0V 0 3V 10 C 40 C 40 C to 85 C Protection Overload short circuit Overtemp Reverse polarity under over voltage Notes All protection is automatically recovered To protect the battery if the unit needs to be restarted after low voltage protection the voltage of DC input should be above 12V The unit is completely insulated in input and output for added safety LIMITED 2 YEAR WARRANTY AA ay Wa 7 Ngo SeA b A BZ v ec Cobra Electronics Corporation warrants that its Cobra Power Inverter and the component parts thereof will be free of defects in material and workmanship for a period of two 2 years from the date of consumer purchase This warranty may be enforced by the first consumer purchaser provided that the product is utilized within the U S A Cobra will without charge repair or replace at its option a defective inverter upon delivery t
3. GUCTION naaa sali aemesenacnamenes A2 How Your Cobra Power Inverter Works A3 Rechargeable Appliances scseseseeeeeeeeees 1 Quick Checkout o sesesesesesesesesesesssesssesesssesssrersseeses 2 3 Installation and Operation s oennennesnosoose0n0s000 4 Controls and Indicators sseseesesesesesesesssseseseses 5 Operating LIMITS seeond anussecees 6 Input Voltage Automatic Shutdown 06 6 Troubleshooting Guide oe eeeseeeeeeeteeeees 7 Maintenance and Service ceeeesceeeceseeseeeees 8 9 b Power CONSUMPTION cecescessesseessesseeseeseeenes 10 SPECICATION sorrisa 11 Limited 2 Year Warranty ccccsesesesteeeeeeseeeees 12 RECHARGEABLE APPLIANCES gt CAUTION Certain rechargers for small nickel cadmium batteries can be damaged if connected to the CPI 300 Two types of equipment are particularly prone to this problem 1 Small battery operated appliances that can be plugged directly into an AC receptacle for recharging including flashlights razors and night lights 2 Certain battery chargers for battery packs used in hand power tools specifically those that have a WARNING label stating that dangerous voltages are present at the battery terminals Problems do not occur with the vast majority of battery operated tools most of which use a separate charger or transformer that plugs into an AC receptacle and produces a low voltage output If the label on yo
4. HC obra Operating Instructions for Your Cobra 300 Watt POWER INVERTER MODEL CPI 300 Nothing comes close to a Cobra 300 Watt POWER INVERTER MODEL CPI 300 Congratulations Thank you for purchasing the CPI 300 Power Inverter from Cobra When used properly your unit will give you many years of reliable service The operating features of your CPI 300 include e Automatic thermal protection shutdown e Dual AC receptacle e Low battery alarm e Reverse polarity protection Low battery shutdown power indicator fault indicator ON OFF POWER Z switch battery cable rminals AC outlets A1 For Best Results Your CPI 300 must be installed and used properly in order to provide the best possible results Please read all instructions carefully before installing and using the unit Pay special attention to CAUTION and WARNING statements in this manual CAUTION statements specify conditions that could cause damage to the unit or other equipment gt CAUTION WARNING statements identify conditions that could result in person injury or loss of life Q WARNING INTRODUCTION Cobra 300W Output Waveform This unit s output waveform is referred to as Square wave of 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 inc
5. e On line answers to frequently asked questions can be found at www cobra com Maintaining Your Inverter Your CPI 300 requires very little maintenance to keep it operating properly The exterior of the unit should be cleaned periodically with a damp cloth to prevent accumulation of dust and dirt At the same time tighten the screws on the DC input terminals Keep vents and fans free from dust or debris Service You can receive technical assistance with your unit through one of our customer Support services e Automated Help Desk is available 24 hours a day 7 days a week at 773 889 3087 e Customer Service Operators are available at 773 889 3087 Monday through Friday 8 00 a m to 6 00 p m CST MAINTENANCE amp SERVICE Service continued If you suspect that your unit requires service please call 773 889 3087 BEFORE shipping it to Cobra This will ensure that you receive service as quickly as possible If you are asked to send your unit to the Cobra factory please follow these steps 1 Send the complete unit 2 For warranty repair enclose some form of proof of purchase such as a photocopy or carbon copy of a Sales receipt If you send the original receipt it cannot be returned 3 Enclose a typed or clearly written description of the problem you are having with your unit plus the name and address where you want the unit returned 4 Pack the unit securely to prevent damage dur
6. ing transit If possible use the Original packing materials 5 Ship prepaid and insured using a traceable carrier such as United Parcel Service UPS Federal Express or first class mail with delivery confirmation Ship to Cobra Factory Service Cobra Electronics Corporation 6500 West Cortland Street Chicago IL 60707 USA 6 Please allow 3 4 weeks before contacting us about the status of your service Call 773 889 3087 for assistance If your unity is under warranty it will either be repaired or replaced upon receipt depending on the model If your unit is out of warranty you will receive a letter informing you of the repair or replacement charge For each piece of equipment you will be powering with your CPI 300 you must determine the battery s capacity how long the battery can deliver a specific amount of current For example automotive batteries usually provide 25 amperes of current A battery with a reserve capacity of 180 minutes can deliver 25 amperes for 180 minutes before it is completely discharged Power Consumption Equipment Coffee grinder 100 watts TV VCR 115 watts up to 25 inch POWER CONSUMPTION Calculate the total watt hours of energy consumption power X operating time then divide the watt hours by 10 to determine how may 12 volt ampere hours will be consumed Operating Watt Hours Time power X operating time 0 1 hour 10 3 hours 345 10 11 SPE
7. luding linear and switching power suppliers used in electronic equipment transformers and motors A2 How Your Cobra Power Inverter Works The Cobra Power Inverter takes low voltage DC direct current power from your automobile or other low voltage power supply and converts it to standard 110 volt AC alternating current power like the electrical current you have in your home You can connect your power inverter either with the 2 foot direct to battery 12 gauge cable included or simply by plugging into your vehicle s cigarette lighter socket This will allow you to use many of your household appliances and electronic products in automobiles RVs boats tractors trucks and virtually anywhere else A3 Customer Assistance You can receive technical assistance with your unit through one of our customer Support services e Automated Help Desk is available 24 hours a day 7 days a week at 773 889 3087 e Customer Service Operators are available 773 889 3087 Monday Friday 8 00 a m to 6 00 p m CST e Questions can be faxed to 773 622 2269 e Automated Technical Assistance is available 24 hrs 7 days a week via e mail at productinfo cobra com e On line answers to frequently asked questions can be found at www cobra com For additional Customer Service information see page 8 9 Table of Contents TTRO
8. o 15 0 0 5 volts This helps protect the unit from damage due to excessive input voltage Although the inverter is protected in this way it may still be damaged should the input voltage exceed 16 volts Automatic Shutdown The unit will automatically go into thermal shutdown if it becomes overheated due to excessive input voltage poor circulation or high ambient temperature TROUBLESHOOTING GUIDE Possible Problem auses Symptom Low output voltage Overload Low input voltage No output voltage Short circuit or wiring error High input voltage No output voltage and fault indicator is lit Thermal shutdown No output voltage when load is in excess of 300 watts or 2 6 amperes Poor DC wiring poor battery connection Low battery alarm sounds continuously Solution Reduce the load Recharge battery Check connections and cable Check AC wiring for short circuit or improper polarity Make sure the inverter is connected to a 12 volt battery Check regulation of charging system Allow inverter to cool down Improve ventilation make sure ventilation openings in the inverter aren t obstructed Lower ambient temperature Use proper cable Ensure good connections Use new battery MAINTENANCE amp SERVICE e Questions can be faxed to 773 622 2269 e Automated Technical Assistance is available 24 hours 7 days a week via e mail at productinfo cobra com
9. o the Cobra Factory Service Department accompanied by proof of the date of first consumer purchase such as duplicated sales receipt You must pay initial shipping charges required to ship the product for warranty service but the return charges will be at Cobra s expense if the product is repaired or replaced under warranty This warranty gives you specific rights and you may also have other rights which vary from state to state Cobra Electronics Corporation 6500 West Cortland Street Chicago Illinois 60707 USA Exclusions This limited warranty does not apply 1 to any product damaged by accident 2 in the event of misuse or abuse of the product or as a result of unauthorized alterations or repairs 3 if the serial number has been altered defaced or removed 4 if the owner of the product resides outside the U S A All implied warranties including warranties of merchantability and fitness for a particular purpose are limited in duration to the length of this warranty Cobra shall not be liable for any incidental consequential or other damages including without limitation damages resulting from loss of use or cost of installation Some states do not allow limitations on how long an implied warranty lasts and or do not allow the exclusion or limitation of incidental or consequential damages so the above limitations may not apply to you 12 HC obra The Cobra line of quality products incl
10. tilate the battery compartment before making a connection QUICK CHECKOUT Quick Checkout continued To connect your inverter to the power source 1 Push the inverter s ON OFF switch to OFF y EIN eA o oM Uii 2 If the power source is a DC power supply switch it off 3 To use the cigarette lighter plug wire Connect the wire to the posts on the right side of the inverter Insert the plug into the cigarette lighter of your vehicle To use the direct to battery wire a Connect the black cable to the black post marked on the back of the CPI 300 Connect the other end to the negative terminal on the battery b Connect the red cable to the red post marked on the back of the CPI 300 Connect the other end to the positive terminal on the battery Positive terminal Negative terminal 4 Plug the power cord from the test load into the inverter s AC receptacle 5 Check to be sure all power connections are secure gt CAUTION A reverse polarity connection positive to negative will blow the fuse in the inverter and may permanently damage the unit Testing Turn on the inverter It should supply power to the load If the inverter does not appear to work properly refer to the Troubleshooting Guide on page 7 INSTALLATION OPERATION The location where you install your CPI 300 must be e dry Do not install the unit where water can drip
11. udes CB radios microTALK radios Radar Laser Detectors Safety Alert Traffic Warning Systems Accessories HighGear Accessories For more information about our products or to order online please visit our website www cobra com Click shop Cobra Nothing comes close to a Cobra 2002 Cobra Electronics Corporation Printed in China 6500 West Cortland Street Part No 480 032 P Chicago IL 60707 USA
12. ur tool s AC adapter or charger states that is produces a low voltage AC or DC output less than 30 volts you can safely power the charger with your CPI 300 In order to check the performance of your CPI 300 before installing it please have the following on hand 1 A 12 volt DC power source such as a vehicle battery 2 The 2 foot cigarette lighter plug wire and the 2 foot direct to battery 12 gauge wire 3 A test load such as a lamp or other small appliance that can be plugged into the AC receptacle on the inverter Power Source You will need an 11 to 15 volt DC power source capable of supplying enough current to run the test load As a rough guide divide the wattage of the test load by 10 to get the current in amperes that the power source must supply A fully charged standard automotive battery will work fine QUICK CHECKOUT Connecting to the Power Source Your CPI 300 comes with both a 20 inch cigarette lighter plug wire and a 20 inch direct to battery 12 gauge wire The cigarette lighter plug is suitable for operating the inverter at loads up to 150 watts gt CAUTION When operating any loads over 150 watts connect the inverter directly to the battery Remove any jewelry Be careful not to short circuit the battery with a metallic object wrench etc sro WARNING Do not connect to the power source if flammable fumes are present Explosion or fire may result Thoroughly ven
13. whenever ORM Wie the unit detects excessively high or low input voltage or begins to overheat When the switch is in the OFF position the inverter draws no current from the battery When it is the in ON position but no power is being supplied to the load the inverter draws less than 500 milliamperes from the battery This is low current draw It would take more than a week to discharge a 100 ampere hour battery at this draw rate You don t have to worry about excessive drain on a battery if you leave the inverter OPERATING LIMITS INPUT VOLTAGE AUTO SHUTDOWN Power Output Your CPI 300 will deliver 300 watts continuously It can deliver 360 watts for about 30 minutes after which it must cool for about 15 minutes before it can resume operation at 300 watts NOTE the wattage rating applies to resistive loads Input Voltage Your CPI 300 will operate from input voltage ranging from 10 to 15 volts Optimum performance occurs when the voltage is between 12 and 14 volts If the voltage drops below 10 7 0 3 volts an audible low battery alarm will sound The inverter will automatically shut down if the input voltage drops below 10 0 0 3 volts This protects the battery from being over discharged The inverter will restart when the input voltage exceeds 12 0 0 5 volts The inverter will also shut down if the input voltage increases t
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