If you discharged yourself to ground what about the pointer? my guess would
be that the pointer has held a charge and is responding to ground/you.
On Wed, May 9, 2018 at 9:17 PM, Steve White <steve.white1@xxxxxxxxx> wrote:
> In the control cabinet for my SGTC I have a Simpson 0 - 300 volts AC
> Wide-View iron vane voltmeter measuring the voltage from the wall. I
> briefly powered up the cabinet for a few seconds to check some things and
> then switched it off. Then, with all power off, I placed my finger over the
> indicator pointer of the voltmeter and its movement tracked my finger
> movement through the clear plastic cover! After this strange behavior, the
> pointer settled at a position substantially above the zero voltage point.
> It settled at about 30 volts with no power applied. I noticed that as time
> went by, the pointer gradually settled back to its true zero voltage point.
> This took about 10 minutes. I have PFC capacitors but I had them switched
> out at the time. The only other energy storage components that I can think
> of are the capacitors in the EMI line filter bricks. I don't think it could
> be static electricity because I tried discharging my body and the pointer
> still followed my finger. None of
> the other voltmeters and ammeters in the control cabinet display this
> strange behavior. Does anyone know what is going on here?
>
> Steve
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