Copper vs. Zinc Pennies - Coin sorter/acceptor CH-268T

[bthomas71chevy]

I bought a coin selector/acceptor (ie. model # CH-268T) and spent a couple hours trying to get it "tuned" into copper pennies vs zinc pennies and the best I could do was a little better then 50/50.

Has anyone else bought one of these and been successful in accepting Zinc vs Copper pennies?

 

[RW]

Is that a coin comparator? I guess you loaded the target coin slot if so? I got one too but haven't fired it up. Too many projects.