Goldanalytix GoldScreenBox Instruction Manual page 18

1.) 1/10 Au 999
Our measurements with various 1/10 ounce coins have shown, for example, that the target value
for 1/10 ounce pure gold is around 41 MS/m. This means that if the coins have a diameter of 16 to
approx. 16.9 mm, the target value is around 41 MS/m. Very important: Nevertheless, the value is
of course material-specific in relation to the respective size - an equally small piece of tungsten,
for example, would also be lower than its respective standard reference value, so that the
distinction to foreign metals is maintained. Please also note that, due to the slightly different
diameters, the measurements may be more susceptible to fluctuations to a certain extent than
the values of the large coins, which cover the measuring circle completely. A special and in
Germany very frequent case, which is exactly at the transition to the mode "Au 999", are the so-
called 20 Euro Goldeuros. These are mainly known in the series "German Forest" and "Native
Birds". They are 1/8 ounce coins with a weight of 3.89 g and a diameter of 17.5 mm. These are
mostly in the range of 43 to 43.5 MS/m - and therefore in the lower range of the "Au 999"
measuring mode and in the upper range of the "1/10 Au 999" measuring mode. Coins of this size
therefore represent a borderline case. Taking this explanation into account, it is ultimately up to
you in which mode you measure the coin. As long as the value is within the mentioned range, you
know that at least the electrical conductance corresponds to the real object up to the penetration
depth. The larger specimens of the Goldeuros (50 €, 100 € and 200 €) can of course be measured
in the normal mode "Au 999".
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