Cobra CPI 490 CPI 490 - English - Page 8

Intro Operation Customer Assistance Warranty Installation Power Consumption Intro Operation Power On and Off Operation Customer Assistance Warranty Power ICnstoallantiosnumption Notes • For each Secondary Icons piece of equipment you will be operating from the TInturo rningOpYeraotioun r InvACsuessitrsotmtaneecrer OnWoarrranOty ff • Be sure to have your power inverter properly installed before inverter, you must determine the battery's reserve capacity attempting toInsttuallrantionthe unit on (seeNoitnesstallation page 5). (how long the battery can deliver a specific amount of current - in automotive batteries, usually 25 amperes) or ampere-hour capacity (a measure of how many amperes POWER / MSOeacinno/nIOcdoafnrfysSIcwonistcInhsttaFollAaOtUionnLT UTSoB turn the power inverter on: 1. If a DCNopteos wer supply is being a battery cNaonticedeliver Cfoaurtioan specifWieadrninleg ngth of time). Secondary Icons used as the power source, switch it on. Example - Reserve capacity: a battery with a reserve capacity of 180 minutes can deliver 25 amperes for 180Main Icons POWNEoRtice 2Ca.uOtionn the leWftarnsinidg e panel, switch the minutes before it is completely discharged. On/Off Switch to on. Intro Operation Customer Warranty Example - Ampere-hour capacity: a battery with an The inverteNrotiiscenow reCaaduAtyisosnitsotancdeelivWearrnAinCg power to your loads. ampere-hour capacity of 100 ampere-hours can deliver 5 If several loads are to be operated by the inverter, turn them amperes for 20 hours before it is completely discharged. on separately, after the inverter has been turned on. This will ensure that the inverter does not have to deliver the To determine the battery ampere-hour Intro Osptearartiotning currents required CAsussitsotmaInnescrteallation Warranty for all theNolteosads at once. capacity you require: POWER / 1. Determine how many watts each piece of equipment SOecno/nOdafrfySIcwonistch tFoAOUffLT UTSoB turn the power inverter off: consumes. This can normally be found on the product 1. On the left side panel, label. If only the current draw is given, multiply the Installation Notes switch the On/Off Switch current draw by 115 to get the watt consumption. Secondary Icons POWNEoRtice to off. Caution Warning 2. Estimate the time (in hours) that each piece of equipment will be running between battery charging cycles. NOTE The On/Off Switch turns the control circuit 3. Calculate the total watt-hours of energy consumption (power x operating time) using the average power in the inverter on and off. It does not disconnect Notice powCaeutrionfrom tWhaerniinng verter. consumption and the total estimated running time When the switch is in the off position, the inverter (in hours). Power x Operating Time = Watt-Hours. draws no current from the battery. When it's in the on position, but no power is being supplied to the Laptop Blender 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 rate depending on the age of the battery. 50 watts x 2 hours 300 watts x 15 minutes = 100 watt-hours = 75 watt-hours 4. Divide the watt-hours by 10 to determine how many power supply's (12 volt) ampere-hours will be consumed. 10 Nothing Comes Close to a Cobra® 11