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conductivity or ferrous
- Thread starter WV62
- Start date
sprchng
Well-known member
I don't think either are really the correct answer
I look at it as the electromagnetic signal is altered in different ways by ferrous and non ferrous material and the machines simply report in one direction or the other , say ferrous(Iron) "slows" it down and nonferrous(conductive) "speeds " it up.
I look at it as the electromagnetic signal is altered in different ways by ferrous and non ferrous material and the machines simply report in one direction or the other , say ferrous(Iron) "slows" it down and nonferrous(conductive) "speeds " it up.
sprchng
Well-known member
Conduct , multi would closest resemble delta.
Delta pitch(full tones) tones is how I always ran the 75 if I remember right.
I think the factory default for iron was 15 or so but with only a one number system it's difficult to compare to the etrac.
Fe number on the etrac seems to be generally accepted as iron at above 26/27 although some patterns start iron at 18.
You could more closely imitate the F75 by running the etrac in 2,3,or 4 tones conductive and mentally rejecting targets with FE numbers greater than 18( or using a disc pattern that blacks those readings out) if you run the F75 in a tones setting other than DP,,,,,,the nulling would correspond to the iron tone you would hear on the F75 at VDIs below 15.
Delta pitch(full tones) tones is how I always ran the 75 if I remember right.
I think the factory default for iron was 15 or so but with only a one number system it's difficult to compare to the etrac.
Fe number on the etrac seems to be generally accepted as iron at above 26/27 although some patterns start iron at 18.
You could more closely imitate the F75 by running the etrac in 2,3,or 4 tones conductive and mentally rejecting targets with FE numbers greater than 18( or using a disc pattern that blacks those readings out) if you run the F75 in a tones setting other than DP,,,,,,the nulling would correspond to the iron tone you would hear on the F75 at VDIs below 15.