User manual COBRA CPI 2550 QUICK START GUIDE

[. . . ] Introduction Our Thanks to You Thank you for purchasing the Cobra CPI 2550 inverter. Properly used, this Cobra product will give you many years of reliable service. Operating Instructions How Your Cobra Power Inverter Works The Cobra power inverter is an electronic product that has been designed and built to take low voltage DC (Direct Current) power from your automobile or other low voltage power supplies and convert it to standard 115 volt AC (Alternating Current) power like the current you have in your home. This conversion process thereby allows you to use many of your household appliances and electronic products in automobiles, RVs, boats, tractors, trucks and virtually anywhere else. The Cobra line of quality products includes: CB Radios microTALK® Radios Radar/Laser Detectors Safety Alert® Traffic Warning Systems Handheld GPS Receivers Mobile GPS Navigation Systems HighGear® Accessories CobraMarine® VHF Radios Power Inverters Accessories Customer Assistance Customer Assistance Should you encounter any problems with this product, or not understand its many features, please refer to this owner's manual. [. . . ] Be careful not to short circuit the battery with any metallic object (wrench, etc. ). 10 English WARNING If you are making a permanent AC connection to the inverter, make sure that the AC wiring steps are performed before any DC wiring is done. (DC hook-up energizes internal components, regardless of the position of the On/Off Switch). Working on AC connections in such a circumstance may result in an electric shock. WARNING 115 volt AC power is potentially lethal. Do not work on AC wiring when it is connected to the inverter (even if it is switched off) unless the DC power source is physically disconnected from the inverter. Also, do not work on AC wiring if it is connected to another AC power source such as a generator or the utility line. WARNING You may observe a spark when making the connection because current can flow to charge the capacitors in the inverter. Do not make this connection in the presence of flammable fumes. Thoroughly ventilate the battery compartment before making this connection. NOTE If only one power source is used, connect both cables from the negative terminal of the inverter to the negative terminal of the power source. Then connect both cables from the positive terminals of the inverter to the positive terminal of the power source. Nothing Comes Close to a Cobra® 11 Installation Power Consumption Installation Ground Wiring Power Consumption · For each piece of equipment you will be operating from the inverter, you must determine the battery's reserve capacity (how long the battery can deliver a specific amount of current -- in automotive batteries, usually 25 ampere) or ampere-hour capacity (a measure of how many amperes a battery can deliver for a specified length of time). Example ­ Reserve capacity: a battery with a reserve capacity of 180 minutes can deliver 25 ampere for 180 minutes before it is completely discharged. Example ­ Ampere-hour capacity: a battery with an ampere-hour capacity of 100 ampere-hours can deliver 5 ampere for 20 hours before it is completely discharged. To determine the battery ampere-hour capacity you require: 1. Determine how many watts each piece of equipment consumes. This can normally be found on the product label. If only the current draw is given, multiply the current draw by 115 to get the watt consumption. Estimate the time (in hours) that each piece of equipment will be running between battery charging cycles. Calculate the total watt-hours of energy consumption (power x operating time) using the average power consumption and the total estimated running time (in hours). Power x Operating Time = Watt-Hours. Laptop TV/VCR (up to 25") Blender Ground Wiring · There is a screw on the rear panel for Chassis Ground. This is to connect the chassis of the inverter to ground. The Chassis Ground Screw must be connected to a grounding point, which will vary depending on where the unit is installed. [. . . ] In the event of misuse or abuse of the product or as a result of unauthorized alterations or repairs. If the serial number has been altered, defaced, or removed. 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. [. . . ]