Omega Question please.

[MarkCZ]

Well, if I take my Omega and turn it on and hold the coil up close to my metal desk I get the "Overload Tone" and it reads overload in the display, this isn't the same thing that it does with the Zinc penny to close to the coil. What's more strange about this is it doesn't do this with an all copper penny, just the Zinc's?
With the copper I just get three beep's as I sweep it across the coil at the same distance, the Zinc is all broken and choppy.

Mark

 

[amberjack]

just did some more testing on a old silver coin, a silver ring, a 18K small gold ring, a 9K medium ring, a 1g gold nugget, just above the words target ID is the overload word that comes up when machine is overloaded seems its going between trying to read the target and overload as the overload word flashes up and then off it did it on all those items I just tested except the 1g gram nugget but ID was jumpy on the nugget and fair enough on the nugget.

I did the same thing as I did in the video.

I haven't had a chance to take it to the park for a test so this is just off the cuff testing on fresh drop surface targets with iron below.

what I did notice is the distance I could hear the target away from the 5" coil was pretty good 6 to 7" on a dime size silver coin.

so anyway I hope to take it for a spin soon to the park that I have flogged out with the gold bug and 5" coil and see what shows up that will tell me in the real world what I am holding

thanks supertraq for the feedback on this topic

strangely enough I have found a few zinc Penny's and they do sound like crap probably because they are made of crap they rot down hey whats in them what metal is it is it really zinc?

AJ

 

[Ezer19]

wiki:
australian:
The 5, 10, 20 and 50 cent coins are made of cupronickel (75 percent copper and 25 percent nickel). The one and two dollar coins are made of aluminum bronze (92 percent copper, 6 per cent aluminum and 2 per cent nickel).

U.S. (Pennys):
1793–1796 100% copper
1796–1857 100% copper
1856–1864 88% copper, 12% nickel (also known as NS-12)
1864–1942 bronze (95% copper, 5% tin and zinc)
1943 zinc-coated steel (also known as 1943 steel cent)
1944–1946 brass (95% copper, 5% zinc)
1946–1962 bronze (95% copper, 5% tin and zinc)
1962–1981 brass (95% copper, 5% zinc)
1982 varies: brass (95% copper, 5% zinc) or copper-plated zinc (97.5% zinc, 2.5% copper)
1983–present 97.5% zinc, 2.5% copper (core: 99.2% zinc, 0.8% copper; plating: pure copper)