| Author | Message | ||
| captain ron (Captain_ron)
Rating: N/A |
I need a pure sine inverter for my printer. it goes haywire on the one I have. I may need to use one on a few other music related devices also. I just saw a 130 watt unit on the e-place. will this be big enough for my intinded use? also can it be hooked into the same battery bank as other one. I plan on hooking it up as a direct use unit not through an electrical panel. I can't justify buying a large expensive unit for the amount of use and one or two peices that won't run on the other one. | ||
| Gary Stadler (Boogiethecat)
Rating: N/A |
I use a 120 watt pure sine inverter for my computer, charging cellphones, etc, anything sensitive and low wattage. I leave it hooked to my house batts, permanently on, 24/7. It works VERY well for this stuff. It'd be fine for your music stuff as long as you don't go over the wattage limit. I've used mine to power a small protools system, no problem. You should be able to hook it to the same batteries as "the other one" although if "the other one" is running it may put too much crap into your system and the sensitive items may get stragne.... oops strange.... I'm one of those guys who just can't see a need for a giant set of batteries and a giant inverter. This little one has filled all my needs for 5 years now, just fine. If the wife wants to turn on the microwave or a hair dryer, we turn the gene on for a few minutes. No biggie | ||
| Crane Rating: N/A |
Cap'n You have the answer but don't know it.... look at your equipment and list the loads each will require. 100w 20w 1.2 amp for the amp readings, multiply by 120 (vac) Total the number and you will know what you need. Crane | ||
| Pete/RTS Daytona (Pete_rtsdaytona)
Rating: N/A |
Crane --- multiply by 12 (120ac/12dc + 10% loss) | ||
| Gary Stadler (Boogiethecat)
Rating: N/A |
Rule o' thumb is 8 amps per kilowatt. So you could divide too!!!  1.2/ 8 = .15kw = 150 watts Related but not related, a buddy of mine who is also an electronic designer told me a funny the other day... "Electricians understand black, white, and green. We understand all the rest of the colors as well..." | ||
| Crane Rating: N/A |
AH yes, Thanks Pete and GaryS Crane | ||
| captain ron (Captain_ron)
Rating: N/A |
ok guys you wanna translate that to english? | ||
| Gary Stadler (Boogiethecat)
Rating: N/A |
English, your item that draws 1.2 amps, whatever it is, won't work with a 130 watt inverter. Too much load. The rest of your stuff will. Maybe just get a bigger inverter and don't worry about it... this ebay one is only $150 and will do your job fine... 300 watts pure sine 6050699973 or get something equivalent... | ||
| JW Smythe (Jwsmythe)
Rating: N/A |
I was wondering about this. Would a good APC UPS fix that up? By their documentation, it seems that they do. I've had a lot of luck with them over the years. The only ones that we've had fail were due to lightning strikes in Florida. It's better to have the UPS die, than the equipment attached to it. It may only create it's own sine wave on battery power. That's something I've never had a chance to test. Being that I don't have an oscilloscope, I've never been able to see positively how it works. Places like Best Buy sell line conditioners, which may help too. 120W inverter is probably too small for your application. It would depend on what else you're running at 110V on there. Crappy computers, like the smaller Compaq's have a 150W power supply. P4's generally require at least 400W. Like others have said, check everything you have plugged in, and find out what their max loads are. It's possible that when you turn on your printer, or go to start printing, you're overloading the 120W inverter. Computer equipment make for effective heaters. In an old office, we had a server room with roughly 30 machines in it. We had another dozen workstations in the offices. It was 40 degrees out, and to heat the building I just opened up the server room doors and turned the air conditioning up to 75. Normally we left it set to 60, it made the equipment very happy, and helped keep people out of there. The air conditioning still ran, even in the winter because of the heat generated by the servers. That generated heat requires lots of power. | ||
| Richard Bowyer (Drivingmisslazy)
Rating: N/A |
Many small UPS's only use the inverter to create power when the utility power fails. I do not know if the inverter is designed for continous operation. Richard | ||
| Paul Tillmann (Paultillmann)
Rating: N/A |
Try: www.donrowe.com Bought my inverter from them. Decent prices. Paul |