valutazioni - 4, GPA: 3.8
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Induction motors may require 2 to 6 times their wattage rating to start up. For further information on the fundamental operating principles of Whistler inverters and related technical data, see "Technical Operating Principles." 7 INVERTER INFORMATION INVERTER INFORMATION pro1200to3000w.4/30/2010 8:54 AM Page 11 Don’t Push It. Although your Whistler power inverter has the capacity to provide power output (excess current) equal to approximately two times its rated wattage capacity brief period, it is designed to operate equipment and start up load wattage ratings no higher than continuous wattage rating. For example, the Pro-1200W model has a maximum continuous rating of 1200 watts. Although this model the capacity to briefly provide more than its continuous power (that is, excess current), it is designed to operate equipment and appliances with start up load requirements of 1200 watts or less. Consequently, if the start up load rating of your equipment or appliance is slightly higher than the maximum continuous rating of the inverter, the inverter will attempt to start loads above the continuous rating. Some refrigerators, freezers, pumps and other similar equipment and appliances require very high start up loads to operate. Before attempting to power up this type of equipment or appliance, make certain that all connections have been properly made and that the power source is fully charged. To determine whether your inverter will operate a particular piece of equipment or appliance, run a test. The inverter is designed to shut down automatically in the event of a 8 power overload. Testing appliances and equipment start up load ratings comparable wattage rating will not damage it. If a piece of equipment or an appliance first confirm that the inverter has been properly connected to the 12 volt power source (See "Making The Connection"). If all connections have been properly made, turn the inverter rocker switch ON (l), OFF (O) and ON (l) again succession. If this procedure is unsuccessful, it is likely that the inverter does not have the required start up capacity or your battery supply isn’t large enough to operate the equipment or appliance in question. Selecting the Optimum Power Source. Operating the inverter for extended periods combined with a high continuous load demand may result in excessive power drain from the battery. Therefore, the reserve capacity of the battery you select to power the inverter is an important consideration. The potential power drain can be estimated by calculating the reserve power ("amp-hour"or Ah) of the battery and the amps required by the inverter to meet the continuous load demand of the equipment or appliance being operated. 9 BATTERY/CABLE INFORMATION BATTERY INFORMATION pro1200to3000w.4/30/2010 8:54 AM Page 13 1. To calculate the Ah of the first determine its "reserve minutes" rating. (Deep cycle generally have the highest reserve minute ratings). This rating typically is marked on the battery along with the "Cold Cranking Amps" (CCA) rating. minutes rating of the battery by 0.3 to determine the battery approximate Ah rating. A battery with a reserve minutes rating of 166 has an Ah rating of 49.8. 2. To estimate the maximum battery current the inverter will require to run a piece of equipment or appliance, divide its continuous load wattage requirement by 10. The Pro-1200W watt model utilizes 50 amps of battery power to operate an appliance with a 500 watt continuous load requirement. (500W divided by 10V = 50A). 3. Conclusion: The reserve power of the battery is sufficient to satisfy the continuous load demand placed on the inverter for a maximum of about one hour. (49.8 Ah divided by 50A = 1 hour). Note: • When the inverter will be operating equipment or appliances with high continuous load ratings for extended periods, it is not advisable to power the inverter with the same battery used to power your vehicle. If the car or truck battery is utilized for an extended period, it is possible that the battery voltage may be drained to the point where the battery has insufficient reserve power to start the vehicle. 10 • It may be advisable to operate from a bank of batteries of the same type Two such batteries will generate single battery; three batteries will generate three times the Ah and so on. See “Making on page 13 for more information. This multiple parallel battery option is especially recommended for the Pro-2500W and Pro-3000W inverters due to the high level of amps these models require to produce up to 3000 watts of continuous load. For more information regarding battery power please visit our inverter faq page at: whistlergroup.com. Wire Cable Gauges For safe and proper operation of the inverter, connect the inverter to the power source with the proper gauge available and in the shortest length practical. Pro-1200W and Pro-1600W When the inverter and the battery are set up within three feet of each other, use a minimum of #4 gauge wire to make the connectio...
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