PRESIDIUM Synthetic Diamond Screener II Bedienungsanleitung Seite 7

This device, meant only for use on colorless diamonds (Color D to
J), features a safe, user-activated, deep-wave UV light source that
passes through the tested stone towards the photo-detector on
the base platform inside the product. Bars of colored lights on the
front of the lid will provide an easy reading to indicate if the UV light
absorption ability of the tested stone is low (i.e. indicative of a Type IIa
diamond) or high (indicative of Type la diamond).
If the UV light absorption measurement is low, a single red light bar
will light up alerting the tested stone is a Type IIa diamond, which
could be laboratory-grown and therefore should be subjected to other
supporting tests.
If the UV light absorption measurement is high, a single blue light bar
will light up, indicating that the UV light absorption of the tested stone
corresponds to the usual absorption range characteristic of a Type Ia
colorless diamond.
Created with the user in mind, the Synthetic Diamond Screener II is
designed to be a lightweight, portable, sturdy and non-slip unit that
can be powered by 4 1.5V AAA batteries or through its USB port
that connects to either an external 100~240V power source or to the
Presidium Universal Power Adaptor.
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