PRESIDIUM Gem Computer Gauge PGCG Mode D'emploi page 23

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c. Specific Gravity (S.G.) Dictionary
Presidium Gem Computer Gauge enables the
narrowing down of a gemstone by its S.G. Presidium
Gem Computer Gauge (PGCG) includes a dictionary for
S.G. values of selected gemstones for your reference.
Please note that the weight of gemstone will be needed
from other source for the identification of gemstone.
Requirement
Select S.G.
1.
Dictionary:
Select Mode
Scroll to S.G.
Dictionary
Press "ENT" to
confirm
2. Select Gem
stone name:
Scroll to select
gemstone
name by the
first alphabet
Press "ENT" to
confirm
3. Select Gem
stone:
Scroll to select
Press "ENT" to
confirm
23
Activation Display
Key
Measurement
Weight Estimator
S.G. Dictionary
A B C
G H I J K L
M N O P Q R
Diamond
Danburite
Diopside
[MODE]
D E F
[SELECT NAME]
[SELECT STONE]