This illustration of Iron Mask may be of help. I get a lot of emails asking how to set iron mask to ignore iron and unfortunately there is no way to do that. Iron mask is nothing more or less than a little different way of setting discrimination. It is more like an analog control that only works for the most ferrous metals.
I think the illustration explains what iron mask will do and how to do the same thing on the Smartfind screen and use the IM screen as a second level of discrimination.
I think the illustration explains what iron mask will do and how to do the same thing on the Smartfind screen and use the IM screen as a second level of discrimination.