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Re: Analog meters & static charge
Original poster: "Yurtle Turtle" <yurtle_t-at-yahoo-dot-com>
This may be a long shot, but maybe you could use one
of those anti-static fabric (clothes dryer) strips on
the back of the meter.
--- Tesla list <tesla-at-pupman-dot-com> wrote:
> Original poster: "S&JY" <youngsters-at-konnections-dot-net>
> Folks, I need some advice. I have 4 large analog
> meters of good quality
> (e.g. Simpson) to measure AC and DC volts and amps
> in my power controller.
> When I run my coil then shut it off, I notice some
> of the meter needles do
> not return to zero. What happens is that the meter
> face accumulates a
> static electric charge, and that attracts and
> deflects the meter needles.
> Obviously, this destroys the accuracy of my meter
> My temporary cure was to stretch some of the silvery
> conductive plastic
> (e.g. from bags used to ship PC boards) across the
> meter faces to prevent
> static charge accumulation. But that makes the
> meters hard to read.
> Does anyone have some ideas on materials I can use
> that are both conductive
> and transparent? Or some other technique to
> eliminate meter face static
> charge buildup from all the streamers flying around
> --Steve Y.