E-meters [RE-wrenches]

[allan]

Sparky,
    Perhaps in your little story about electrical hash from a fluorescent
light is the key to my earlier posting about anamolous e-meter readings.
The readings bring tech-support questions from customers that I can't
satisfactorily answer.  As a wrench, I'll look for ways to avoid these
situations , as any one of our customers could have a similar hashmaker in
their system, and we won't know about it.
Allan @+E
-----Original Message-----
From: R. Sparks Scott <sharkey at mrsharkey.com>
To: RE-wrenches at topica.com <RE-wrenches at topica.com>
Date: Tuesday, November 21, 2000 10:08 AM
Subject: Re: E-meters [RE-wrenches]


>
> Responding to Todd's post about the 'pulses' affecting E-meters;
>
> Once a year. my system is hauled out into the woods to act as a
>generator-based, stand-alone system used to power the offices, kitchen and
>communications system of the Oregon Country Fair. The E-meter is invaluable
>in keeping tabs of the system, and is easy enough to read that
>non-techincal personnel can make basic entries into the operating log and
>know when to start the generator.
> A recurring problem has been that one of the office yurts that I supply DC
>power to likes to run an RV-style florescent light over a table. Somehow
>this light generated enough electrical hash into the wiring to make the
>E-meter think that there is a 60-70 amp load operating on the batteries,
>and it merrily counts the Ah down, giving a grievously false reading. I've
>had to pull the fuses on the E-meter more than once to reset the meter to
>0.00, the try to play catch-up to figure out exactly how many *real* Ah I
>need to replace by running the 30Kw generator.
> Last year, I convinced the manager of that yurt to actually *throw out*
>his noisy florescent light. Hopefully, no more totally false readings.
> The moral: watch out for noise on the line, it can be a killer.
>
> -S
>
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To check out the other RE-Wrench participants:
 www.mrsharkey.com/wrenches/index.html

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 www.homepower.com

For info contact list moderator by email:
 michael.welch at homepower.com

___________________________________________________________
T O P I C A  http://www.topica.com/t/17
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