About Your Presidium Refractive Index Meter - PRESIDIUM Refractive Index Meter II User Handbook Manual

III. About your Presidium Refractive Index Meter II
The Presidium Refractive Index Meter II detects the
quantity of light (intensity) reflected from the surface of
cut and polished gemstone. This intensity reading is fed
into a microcontroller in which a calculation is performed
and converted to obtain the refractive index reading of the
gemstone
This tester was designed with the following
objectives:
• Reconfirming the identity of colored gemstone using
Refractive Index
• Universal SI units
• Provide fairly consistent and reliable test results under
proper use;
The Presidium Refractive Index (R.I.) Meter II features
the following:
• Separates diamond, moissanite and gemstones in
seconds
• Refractive Index reading from 1.000 to ~ 3.000
• No waiting time between tests
• USB power inlet with International Voltage
Compatibility
• Low battery Indicator
• Automatic power off
• Online software updates
6