??00-31

[Anonymous]

I hunted an old cellar hole last night,came across a reading of 00-31 on ex2 .Ground still to frozen to dig more than 4 inches.
Here's the question,have any of you dug 00-31 and what was it?

 

[Anonymous]

[No message]

 

[Anonymous]

Silver or very high conductive metal with very low ferrous content. I have found many siver coins that read just outside the border of the screen to the right with a 0/31 reading. The crosshairs will appear as half way past the border of the screen to the right. Some silver coins will read 1/31 which is the upper right of the screen just inside of the border.
So, now you have two opinions but it is one I would recover.
HH, Cody

 

[Anonymous]

In most cases, infact 95% of the time when I get these numbers it is a hot rock or a piece of iron or even peice of a tin can, I do think once i did get a coin and that was because I got it to go to 00-30 a few times besides the 00-31. Maybe differnt ground is differnt, but for me they have not been good signals.
Rick

 

[Anonymous]

I plan to go back when it thaws. Thanks for responding .

 

[Anonymous]

I know the soil makes a difference but the silver quarters and half dollars read 0/31 while a silver dime reads 0/30 or 1/31 on my detector. I read that the calibration can be off a few digits between detectors and the soil will skew the readings to the left so that may well be the difference. I find hot rocks at 31/31 but may be the difference in the type of minerals in the rock. It may be a cold rock that I think is a hot rock but that is where I find the ones I have dug up looking for an Indian Head penny or iron. It is interesting how the soil skews the reading from one area to another. I guess that is why we need to check our neck of the woods to see where the different metals and hot or cold rocks hit.
HH, Cody

 

[Anonymous]

Stan,
In the areas that I hunt they almost always turn out to a buried sprinkler head. But, I would not expect to find very many sprinkler heads in a cellar.
HH,
Glenn

 

[Anonymous]

To add some readings to this discussion:
S. Dollar (Morgan) 00 24
Clad Dollar (Ike) 00 26
S. Half (Seated) 00 28
S. Half (Kennedy) 00 27
Clad Half(Kennedy) 00 28
S. Quarter (Wash.) 00 28
Clad Quarter 00 29
S. Dime (Ros.) 00 29
Clad Dime 03 28
Copper Penny 03 28
Zinc Penny 07 25
Nickel (Jefferson) 10 06
Iron Nail (Square) 31 31
The above coins tested were in very good condition as far as wear (even the Seated Half). Sweeping across the stock 10.5" coil was done carefully and flat with the coil and at a distance to obtain a clear repeatable tone for accuracy. The numbers were the same whether in ferrous or conductivity mode. However, the audio responses will be different on high range targets (especially halves and dollars)depending on the mode used. That is a subject for a different discussion however. This was bench testing and is the most accurate way of testing for exact conductive/ferrous equations. Wear on coins may have some affect as will ground conditions (mineralization). Heavy mineralization (Iron particles) will simulate in some ways "target averaging" when in the matrix with non-ferrous targets, especially long-time buried targets.
In the above readings the Inductance measurement is to the left and the Conductivity measurement is to the right. You will note that all non-ferrous targets tested above never read above 29 in conductivity. However, conditions described above can and will change that to a higher reading on top range conductive targets producing a 30 and even a 31 occasionally. Usually a 31 is iron junk and can be passed over if you have carefully swept the coil in short strokes from different directions and the 31 remains constant. However, a flashing of the conductive reading from 28-29-30-31 should be investigated as it is possible that a non-ferrous target is masquerading as an iron target or piece of junk. It could also be that an iron (junk) target is very close to a non-ferrous target, causing the fluctuation in conductive numbers. You may also see the ferrous numbers increase as a result of the above situation. Short sweeping a target is very important (approx. an inch side to side - then 90 degrees - and even a complete revolution in 90 degree direction changes to better analyse the target. Also, keep in mind that the audio response (whether it be ferrous or conductivity) is always your best ID indicator with visual being only a secondary check.
I saw this discussion as I was passing by so I thought I would contribute this information. I hope you find it useful.
Ralph (Sun Ray)

 

[Anonymous]

Ralph, are those Quarter readings accurate? I have always thought that a silver hits higher on the scale than clad. Just curious.
Thanks
Tom

 

[Anonymous]

Cody,
On all the Explorers we have seen the half dollars read lower than the quarters on conductivity. The ones I get the halfs are 0-28, the quarters are 0-30 if silver and 0-29 if clad. The Silver dimes will read 1 or 2 ferrous and 28 conductivity while the clad dimes will be 3-28. The Silver morgan dollars I did air test show 0-27, as you see the bigger the silver after the quarter the conductivity drops on the Explorers. The silver quarters reads the highest of the coins and 31 seems to always be iron or hot rocks to me.
Rick

 

[Anonymous]

Tom,
Those reading are very accurate and I did the tests just before posting. Depending on how far away from the coil you sweep will sometimes make a questionable tone and reading (depending on the coin) so you find a distance from the coil where the tone and numbers are repeatable with no variation. You are going to find some variables and when the ground matrix is involved numbers will begin to change depending on ground condition and depth. That is one reason I do not use digital when hunting expect for occasionally a double check from audio and then smart find screen. I may use it when a high (iron pitch) in conductivity comes in to check for variations in a 31 reading. I also set my last menu change to sounds so I can quickly change from conductivity to ferrous for a double audio check. It will be on your back button at all times that way so you can check the difference very quickly.
<STRONG>Another tip is to make all your menu changes in Advanced mode from the options menu and then push Quick Start when done. That will allow you to maintain all of your advanced changes and at the same time allow you to switch from smart to digital and back without having to scroll through the two extra learn and edit screens.</STRONG> The only changes that the above procedure will not work in is the Audio changes. You will have to remain in Advanced mode if using them. Hope this helps.
Ralph (Sun Ray)