wrote:

The issue will be obtaining a suitable shunt ... assuming I use a 1 ohm shunt, anybody made one of these ?
The WEB ref page:http://www3.zetatalk.com/docs/Electr...Meter_2007.pdf
details using 12guage copper wire .. based on 1.619 ohm per 1000'

I made up some ammeters that read up to 30A and the shunts were pieces
of copper about 30mm long x 8 x 1, with terminal holes at each end. I'm
remembering this from 2001 so I might be a bit out with the dimensions.

Bill