[no subject]

What and how do the testers reveal ?

Appreciatively,

Courtney


Mike Harrison wrote:
>>Pardon my ignorance, but what kind of tester are you recommending, how 
>>does it work and what does it test for, please ?
> 
> 
> My guess is a 'three light outlet tester'.. and although I'm proud of
> my Fluke and Tektronix gear, a $20 generic digital volt meter is often 
> overkill for the job and much more useful if you take 5 minutes to learn 
> how to use it. It's also very useful for other things.. fixing Christmas 
> tree lights.. etc.. 
> 
&gt; And to be on-topic: <a  rel="nofollow" href="http://linux-gpib.sourceforge.net/";>http://linux-gpib.sourceforge.net/</a>
&gt; supports popular GPIB cards (National Instruments is pretty common)
&gt; so you can communicate with GPIB (IEEE-488) enabled meters, 
&gt; oscilliscopes, and other devices (even some camera's!)
&gt; 
&gt; Then you plug a IEEE-488 enabled voltmeter/scope to your incoming power, 
&gt; and you can record voltage fluctuations or other environmental factors.
&gt; 
&gt; We used to have a junk system running Linux wired up to monitor and record
&gt; incoming AC power and environmentals (temp/humidity). It forced
&gt; the local Electric Power Board to replace the transformers feeding our 
&gt; building, which solved some intermittent power and brownout conditions.
&gt; 
&gt; --
&gt; 
&gt; btw.. if you don't occaisionally exercise (unplug the UPS
&gt; and let it run a while draining down the batteries) your UPS, the 
&gt; batteries get 'flat'. They look charged, but have little capacity 
&gt; because of the buildup of crud accumulated on the plates. Higher-end
&gt; UPS's even have built in exercise routines. - Running them down 
&gt; every once in a while burns off the buildup from being in a charge state
&gt; for months. 
&gt; 
&gt; 
&gt; 
&gt; 
&gt; 
&gt; 
&gt; 
&gt; 
&gt; 
&gt; 
&gt; _______________________________________________
&gt; Ale mailing list
&gt; Ale at ale.org
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&gt; 


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<li><strong><a name="00307" href="msg00307.html">[ale] OT: question about replacing batteries in a APC UPS</a></strong>
<ul><li><em>From:</em> meuon at geeklabs.com (Mike Harrison)</li></ul></li>
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<li><strong><a name="00287" href="msg00287.html">[ale] OT: question about replacing batteries in a APC UPS</a></strong>
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