Re: Ammeter Configurations

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: davep-at-quik-dot-com 

 > Original poster: "Tristan Steele" <ozonejunkie-at-westnet-dot-com.au>
 >
 > G'day All,
 >
 > I am in the process of trying to work out a way to measure AC voltage
 > and current flowing into my coil, and have run into a few problems in
 > the availability (and price) of AC meters.  I have worked out a method
 > to use the much cheaper DC versions that I can easily get.  Can someone
 > please offer some advice on if this setup will work, or if I have missed
 > some vital point. (Wouldn't surprise me!).
    I see nothing overtly wrong, assuming the diodes are approriately
    rated, etc.  I'd go with the high amp diodes for the ammeter
    side, to give some 'headroom' for starting surges, 'catastrophes'
    etc.

    I'm assuming this is power in fromt he mains/AC line?

    I am more used to seeing the metering in the 'hot' side,
    tho i guess it makes little difference.  (Putting it
    in the 'neutral' side means that IF the diodes fail open
    the rest remains 'hot'.....

 > The schematic can be found at:
 > http://members.westnet-dot-com.au/gemabrown/meterschem.png
 > (Only ~9.73kB)
 >
 > Any guidance would be appreciated,
     Some digging around at ham/electronic fleas can yield high
     amp/low buck AC ammeters/voltmeters...

     best
  dwp