Assessments - 3, GPA: 4
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Helpful Formulas: To Convert AMPS to WATTS: AMPS X VOLTS = WATTS To Convert WATTS to AMPS: WATTS . VOLTS = AMPS These formulas yield a close approximation of the continuous loads of a product. T TTo oo c cca aal llc ccu uul lla aat tte ee a aap ppp ppr rro oox xxi iim mma aat tte ee S SSt tta aar rrt ttu uup pp L LLo ooa aad dd: :: Multiply: WATTS X 2 = Starting Load This formula yields a close approximation of the starting load of the appliance, although some may require an even greater starting load. NOTE: Induction motors such as air conditioners, refrigerators, freezers and pumps may have a start up surge of 3 to 7 times the continuous rating. Most often the start up load of the appliance or power tool determines whether an inverter has the capability to power it. For example: You have a freezer with a continuous load of 4 amps, and a start up load of 12 amps: 4 amps x 120 volts = 480 watts continuous, 12 amps x 120 volts = 1440 watts starting load You would need an inverter with peak-surge rating greater than 1440 watts to run this appliance. F FFO OOR RRM MMU UUL LLA AA t tto oo c cco oon nnv vve eer rrt tt A AAC CC W WWa aat ttt tts ss t tto oo D DDC CC A AAm mmp pps ss: :: AC Watts divided by 12 x 1.1 = DC Amps This is the size vehicle alternator you would need to keep up with a specific load; for example, to keep up with a continuous draw of 1000 watts, you would need a 91 amp alternator. T TTo oo c cca aal llc ccu uul lla aat tte ee t tth hhe ee t tto oot tta aal ll w wwa aat ttt tt- --h hho oou uur rrs ss o oof ff e een nne eer rrg ggy yy c cco oon nns ssu uum mmp ppt tti iio oon nn: :: Multiply the power by the operating time. To determine how many 12-volt amp hours will be consumed, divide the watt hours by 10. Example: 150 Watts x 1 Hour = 150 Watt Hours 150 Watt Hours . 10 = 15 12 Volt Amp Hours E EEs sst tti iim mma aat tte eed dd W WWa aat ttt tts ss U UUs sse eed dd b bby yy C CCo oom mmm mmo oon nn A AAp ppp ppl lli iia aan nnc cce ees ss a aan nnd dd T TTo ooo ool lls ss Appliance Approx. Watts 12" 3 speed fan 230 VCR 40-60 CD or DVD player 35 SONY PS3 360 Xbox Console 100 LCD television 50 » 150 Laptop computer 150 Specifications: Operating AC Voltage (Normal) . . . . . . . . . . . . . . . . . . . . . . 105~125-Volts AC DC Input Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10~15-Volts DC Continuous AC Power Output . . . . . . . . . . . . . . . . . . . . . . . . . . 300/150 Watts USB Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Volts DC Maximum AC Power Output (Surge) . . . . . . . . . . . . . . . . . . . . . 600/150 Watts AC Output Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60Hz ±2Hz AC Output Waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . Modified Sine Wave Battery Drain with No AC Load. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.50 Amps Efficiency (Maximum). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87% Ambient Operating Temperature Range. . . . . . . . 14°F (-10°C) ~ 104°F (40°C) Low Battery Shut Down Point . . . . . . . . . . . . . . . . . . . . . . 10.5 ±0.3-Volts DC High Voltage Shut Down Point . . . . . . . . . . . . . . . . . . . . . . 15.5 ±0.5-Volts DC Specifications Subject to Change without Notice Problem/Symptom Possible Causes Solution Low output voltage Overloaded Reduce the load. No output voltage Low input Recharge battery. Red LED illuminated Voltage Check connections and cable. Alarm sounding Continuous operation input current required. Thermal shutdown Overloaded Allow inverter to cool off. Reduce load. Improve ventilation; make sure ventilation openings in the inverter are not obstructed. Reduce ambient temperature. No output voltage High input Make sure the inverter is Red LED illuminated voltage connected to a 12V battery. Check regulation of charging systems No output voltage Short circuit Check load for Red LED illuminated proper operation. Inspect cables from battery. No output voltage Inverter switched off Turn inverter on No power to inverter Check wiring to inverter. Reverse DC polarity Observe correct polarity (black to black/red to red). Inspect cables from battery. Low battery alarm Poor DC wiring Check connections. on all the time Poor battery condition Make sure battery is fully charged. This Limited One Year Warranty from POWERDRIVE, a DAS brand, applies to all electronic products and devices manufactured by DAS Distributors and sold under the brand name POWERDRIVE. Terms of the Warranty: POWERDRIVE warrants that the product you have purchased from a DAS authorized retailer is free from defects in materials and workmanship under normal use during the warranty period. The warranty period begins on the day of retail sale. This warranty extends only to the original purchaser. It is not transferable to anyone who subsequently receives the product. It excludes all ex...