Scope Of Supply; Measurement Principle - GOLDANALYTIX GOLDSCREENPEN Bedienungsanleitung

15.

Scope of Supply

Your GoldScreenPen 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).
16.

Measurement Principle

The GoldScreenPen uses the eddy current measurement as its measurement principle. Every
metal exhibits a characteristic conductance (unit: Megasiemens per meter [MS/m]), which
enables the identification of genuine objects, falsifications or inferior alloys. 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 their alloys, and corresponding
metals and there counterfeit metals (e.g. tin vs. zinc), respectively. Different metals/alloys may
nonetheless show the same conductivity.
The inductive testing method uses electromagnetic alternating fields, whose penetration depth
depends on the applied frequency and the electrical conductance of the testing sample. The
frequency of the GoldScreenPen was adjusted in a manner, that chemically or electroplated
metal layers of falsifications are totally pervaded. The penetration depth depends on the
conductance of the testing sample and ranges from approximately 150 µm (pure silver), 250 µm
for pure gold (middle conductivity range) and up to 500 µm for gold alloys (e.g. Krugerrand,
lower range).
The sensor technology as well as the electronic unit is situated inside the compact casing of the
battery-powered device allowing the use of the GoldScreenPen as a mobile device.
20
GoldScreenPen
Charger
Instruction manual
Carrying case
Shipping box