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Ferrous numbers ???
Posted by: MEV
Date: July 07, 2018 10:53AM
Hello everyone , i'm not into ferrous numbers i only look at Co numbers , but , from what number on ferrous can you Say it's probably iron , from 15 and up?

Thanks !!

Re: Ferrous numbers ???
Posted by: IDXMonster
Date: July 07, 2018 02:58PM
MEV....if you run Ferrous Coin separation,you will notice that the great majority of targets may give you a number of “12” for the Ferrous number. Here’s the kink...if you run in High Trash separation the Ferrous numbers act a lot like the ETrac/Explorer in the regard that they CAN be ALOT higher and the target still be a deeper coin. If a silver dime at 8” in mineralized/iron rich soil rings up as a 12-45 in Ferrous Coin,you could see that exact same target ring up as a 20-46 quite easily. The dual axis discrimination doesn’t come into play ANYWHERE as much in Ferrous Coin,but separation of a Ferrous target such as a nail next to a non-Ferrous target such as a coin is supposed to be clearer.
If you run in anything BUT Ferrous Coin separation,you have to pay attention to the Ferrous numbers much more,and they can get as high as the mid-20’s. I found a Merc in Milwaukee in a pile of trash that was a consistent 31-46 both ways. That is an anomaly,I wouldn’t normally investigate that, does the same thing sweeping at 90 degrees.
If the target ID varies by more than 8-10 points on the cross sweep,I personally walk away when NOT using Ferrous Coin. Others do it differently,and they will chime in.
TRUST the machine and learn what each thing does,even if it takes a couple years to do so. It is beyond unbelievable.

Re: Ferrous numbers ???
Posted by: MEV
Date: July 07, 2018 03:39PM
Thanks for your response idxmonster!:smile:

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