Re-check...Numbers on the T2 and XLT and DFX in the iron range.....MattR.UK

[MattR]

Posted by: MattR


Re: Negative numbers on the XLT and DFX are the iron range.
Posted by: Mike Hillis (IP Logged)
Posts: 717
Date: June 26, 12:37PM
MIKE'S reply...quoted

A don't have any experience with the XLT, but I do have experience with the DFX. The nonferrous range is the positive numbers and the iron or ferrous range is the negative numbers. Just the scale they use. So on these two units iron runs -1 to -95. That would correspond to the 10-40 range on the T2.

- 95 would be full iron acceptance on the XLT/DFX which corresponds to a setting of 10 on the T2.

HH

****************************

Mike, this part of your reply neads reviewing:-

- 95 would be full iron acceptance on the XLT/DFX which corresponds to a setting of 10 on the T2.

+++++++++++++++++++++++++++++++++++
Consider this:-

If the T2 'ferrous range' runs approximately, from 0 to say 45, and the equivalent XLT/DFX is -95 to -1.

This then is approximately a 2 to 1 ratio, DFX to T2

So DFX -95 = 0 T2
DFX -1 = 45 T2

Therefor your T2 10 is approximately equal to -75 DFX. (-95 +[2x10])

Now iron nails for example, read somewhere in the -65 DFX scaling.

That leaves -30 DFX points below 'nails' on the DFX, for any ferrous item with a progressively LOWER conductivity to ferrous ratio.

This -95 to -65 is then similar to the T2 0 > 14 range.

So the DFX or XLT have a similar residual negative range to the T2 (but differently scaled), which can be invoked by a piece of ferrite or very large iron. Ferrite showing in the -94/-95 region.

...................................HH.....MattR.UK

 

[Mike Hillis]

Matt,
I have always appreciated your knowledge and input on the DFX forum. I was a big reader back in the day when you and Cody and Jeff where hashing it all out. I still have copies of a great number of those posts and learned a considerable amount. Actually owning a DFX helped to put all that knowledge into perspective.

You need to get your hands on the T2.


The iron range of the T2 runs from 10 to 40. Only have a 30 number spread for iron. Once above 40 you are into foil. 41 and 42 targets have all been foil.

When we use the two machines there are some aspects that become apparent.

1. With the T2 you cannot wrap non-ferrous targets around into the mineral and iron ranges. On the DFX you can wrap high conductive targets around into the -95 and -94 range. I did this on a regular basis on conductors as low as clad quarters. I have yet wrapped anything around the scale with the T2 and I've tried.

2. With the T2, I have yet to get large rusty iron to wrap backwards into the high end non-ferrous range. Someone correct me if it does this, but as of yet it hasn't been my experience. Yes, I can get rusty ferrous to spike but it typically spikes upward from the positive side, not backwards from the negative side.

I also have not yet gotten any target to read below a 10. If someone else has managed to get a hot rock reading below 10 please chime in and let us know.

So based upon my experience, I find that the 10 to 40 range on the T2 corresponds to the range of -1 through -95 and includes +94/+95 on the DFX.

Now... it might be possible for the +94, +95, -95, -94 mineral range of the DFX to correspond to the T2's 0-9 range. But so far I haven't been able to cause it.

Anybody seen different with the T2?

HH

Mike

 

[BuckeyeBrad]

agrees with yours Mike.