Scope Of Supply; Measurement Principle - Goldanalytix GoldScreenBox Instruction Manual

3. Scope of Supply

Your GoldScreenBox set is delivered with the following elements:
In the unlikely event that something is damaged or missing please contact Goldanalytix
immediately (for contact data see page 2).

4. Measurement Principle

The GoldScreenBox utilises the electrical conductance of metals for its measurement principle.
Every metal exhibits a characteristic conductance value (unit: Megasiemens per meter [MS/m]),
which enables the identification of falsifications. Due to similar densities, the most used metals for
falsifications like tungsten, lead or tantalum usually differ significantly in their conductivity
compared to precious metals or gold alloys.
The patented, inductive testing method uses low-frequency, electromagnetic alternating fields,
whose penetration depth depends on the applied frequency and the electrical conductance of the
testing sample. The frequency of the GoldScreenBox was adjusted in a manner, that chemically or
galvanically plated metal layers of falsifications are totally pervaded. The penetration depth
depends on the conductance of the testing sample and ranges from approximately 250 µm (pure
silver, highest conductance) up to 650 µm (gold alloys, e.g. Krugerrand, lower conductivity range;
pure gold: ca. 350 µm, middle conductivity range).
The sensor as well as the evaluation unit is situated inside the compact casing of the battery-
powered device allowing the use of the GoldScreenBox as a mobile device.
GoldScreenBox
Charger
Calibration piece (Copper)
Instruction manual
Small suitcase
Cardboard box
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