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Walter Dnes <waltdnes <at> waltdnes.org> writes: |
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> |
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> I think my UPS is dying. Time to get a new one. It's been years, so |
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> there may be new tech out there I don't know about. My normal usage is |
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> * 1 LCD monitor 24" |
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> * 1 (sometimes 2) "desktop" PCs connected to the monitor |
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> * 1 ADSL router/modem |
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> |
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> What brand and VA rating would people recommend. |
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1000VA would be the minimum with the monitor connected. |
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The monitor spec should say what the power draw (amps) |
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is. Then determine the power draw of your workstation. |
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(a $50 amp meter from a hardware store will measure this). |
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If you do not wish to purchase the amp meter, just keep |
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the packing and return it after use. |
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Do not plug a printer into the battery protected circuits |
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on the UPS, just the surge protection. Printers draw heavy |
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amperage for short durations that can kill a UPS. |
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> The stuff I'm |
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> concerned about is the 2 or 3 times a year I get power flickers, or a |
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> short outage. And also, if power is out for more than 5 minutes, and |
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> the battery is running low, I want the PC to be able to sense that and |
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> execute /usr/sbin/hibernate. |
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http://www.networkupstools.org/docs/man/tripplite_usb.html |
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Triplite, my brand of choice, should work with NUT. Never set |
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it up myself. |
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Make sure the UPS you choose, internally uses the Standard 12VDC-7AH |
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jell cell battery as they are easy to find and replace and cost |
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effective. Often, that is all an older UPS needs. |
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|
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Google for "Sealed Lead acid Battery 12V 7Ah" with F2 connectors |
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after looking inside at the battery(s) currently in your UPS. |
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|
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hth, |
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James |
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