How does the Infinium differentiate between metals?

[king-ghidorah]

How does it do it with a PI system? Could it be made more accurate as far as it's method of ID?

 

[Adrian SS]

Hello King - ghidorah,

The Infinium discrimination is basically like any other PI discrimination in that it does not have the range of VLF discrimination and that at zero all metal is detected and at max high and low conductivity metals are rejected. In addition the infinium has dual tone ID and an iron check capability.

The discrimination control is normally used to get an idea of what type of metal is being detected when searching beaches and parks etc; When you get a signal, keep scanning the target and gradually turn the disc control up until the signal goes quiet or just changes from Hi/Lo to Lo/Hi or visa versa and note the position of the disc control at this point; By experimenting with various targets both in the ground and as a bench check and by learning the signal drop out or tone change point of your favorite target types you can now use the disc control to help identify these targets.

In using the discrimination control to identify gold from iron in gold field conditions it is better to dig all signals that are HI/LO or LO/HI in normal mode that remain or change to HI/LO in Rev Disc at a reduced signal level or that Disappear completely.

You will find that the signal from most small nuggets and large deep nuggets will disappear in rev disc; It is when you are getting close to them that the signal in REV DISC from gold will be heard as a HI/LO tone, which is why you have to dig these reduced level tones, they may not always be gold but it is better to be sure than to leave a nice nugget in the ground.

The signal from rusty nails and rusty tin lids will often disappear in rev disc but when you get close the signal from these items will be LO/HI........ You will not get a LO/HI tone from natural gold in Rev Disc.

Cheers,
Adrian SS