PRESIDIUM ARI User manual

4
I. Disclaimers, Exclusions and Limitations
of Liability
II. About this book
III. About ARI by Presidium
1. GETTING STARTED with your ARI by
Presidium
2. PERFORMING A TEST with your ARI by
Presidium
3. READING TEST RESULTS on your ARI by
Presidium
4. OTHER FUNCTIONS of your ARI by
Presidium
IV. Important Notice
pg. 05
pg. 06
pg. 07
pg. 12
pg. 16
pg. 21
pg. 22
pg. 25

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PLEASE READ AND NOTE PRESIDIUM WARRANTY
TERMS AND CONDITIONS as stated in the warranty
card. Presidium warranty for its testers are subject to
proper use by its users in accordance with all the terms
and conditions as stated in the relevant user handbook
and shall cover only manufacturing defects.
In pursuing continuous product improvement and
enhancements, Presidium reserves the right to revise
the product software data, including the ARI Mechanical,
Hardware, and Firmware.
Presidium shall not be responsible for any damage or
loss resulting from the use of this tester or handbook, and
under no circumstances shall Presidium, its manufacturer
or any of its subsidiaries, licensors, distributors, reseller,
servant and/or agent be liable for any direct or indirect
damages, resulting from the use of this tester.
TO THE MAXIMUM EXTENT PERMITTED BY
APPLICABLE LAW, under no circumstances shall
Presidium, its manufacturer or any of its subsidiaries,
licensors, distributors, reseller, servant and/or agent be
responsible for any special, incidental, consequential or
indirect damages howsoever caused.
The tester or ARI referred to in this handbook is provided
and/or sold on an “as is” basis. Except as required
by applicable law, no warranties of any kind, either
expressed or implied, including, but not limited to, the
implied warranties of merchantability and tness for a
particular purpose.
I. Disclaimers, Exclusions and Limitations of Liability

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Thank you for purchasing ARI by Presidium.
This handbook is designed to help you set up your tester
and describes all you need to know about how to use
your tester accurately and take care of it in line with its
requirements. Please read these instructions carefully
and keep them handy for future reference.
This book also contains the terms and conditions in
relation to the use of the tester including the Disclaimer,
EXCLUSION and Limitation of Liability clauses stated
above in section I.
II. About this book

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ARI is developed as a handheld PRESIDIUM DIAMOND
VERIFICATION INSTRUMENT®to help identify
colourless diamond against CVD/HPHT lab grown
colourless diamond and all types of moissanite.1It is
suitable for testing on both loose and mounted stones,
including jewelry pieces with a closed back setting.
Through advanced proprietary technology, ARI measures
the UV light absorbance ability of diamonds and
moissanites. With its touch screen colour LCD display,
ARI provides a clear and accurate result of “Diamond”,
“CVD/HPHT/Type IIa” and “Moissanite” within 3 seconds.
ARI has been subjected to thorough factory quality
control, and will generally give a clear and reliable reading
of the gemstone being tested under proper use. However,
you are advised to conduct further supporting tests.
III. About your ARI by Presidium
1PRESIDIUM DIAMOND VERIFICATION INSTRUMENT is a registered trademark of
Presidium Instruments Pte Ltd.

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Presidium Universal Power Adaptor Information:
• Input Voltage: 100 – 240Vac
• Input Frequency: 50 – 60Hz
• Rating Output Current: 1.5A (7.5W)
• Rating Output Voltage: 5V
Power and Battery
• DC 1.5V (3) x AAA alkaline batteries
• USB port to be used with supplied USB cable and
appropriate Presidium Universal USB Power Adaptor
(not included in your package)
• Minimum Power rating: 5V, 0.5A (2.5W)
Dimension and Weight
• Length 190mm
• Width 46mm
• Height 25mm
• Weight: 60 grams
V. Operations
Recommended Operating Conditions
• Only for colorless diamonds
• Color Grade: D color to J color
• Carat Size: 0.02 carat and above
• Cut: All proportional diamond cuts
• Mounted jewelry: For jewelry in all types of settings
Working temperature
• Operating temperature: 18°C – 27°C (65°F - 80°F)
• Storage temperature: 10°C - 51°C (50°F - 124°F)
• Air Relative Humidity: 35 - 65%
IV. Technical Specications

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The tester is designed with the following objectives:
• Help in the identication of colorless diamond
against CVD/HPHT lab grown colorless diamond and
moissanite
• Test for loose and mounted stones
• Stylish ergonomic handheld design for portability and
ease of use
• Provides consistent and reliable test results under
proper use and understanding of its functions
The capabilities of the ARI by Presidium are as follows:
• Test on colorless diamonds (From D to J color) with a
minimum table width of 1.30mm (approx. 0.02 carat)
• Test on polished stones of all proportional diamond
cuts
• Can be used on both loose stones and mounted
stones jewelry in all settings
• Fast testing time of 3 seconds
The user is cautioned against using ARI by Presidium on
the following as it may a󰀨ect the accuracy of the readings:
• Diamond of colors other than colorless (D to J)
• Testing to identify other forms of diamond simulants i.e.
sapphire, spinel, cubic zirconia, etc. are not possible

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The ARI by Presidium features the following:
• Clear display of results for “Diamond”, CVD/HPHT/
Type IIa” or “Moissanite”
• Resistive touch screen
• Replaceable probe function
• Retractable probe function that maintains constant
pressure between optical probe tip and gemstone
• Alert buzzer for loss of contact during testing
• Stylish ergonomic design
• User-safe function to shut o󰀨 UV light when not in
testing
• USB Inlet at the top end of unit for connecting to
external power source
• International voltage compatibility
• Low battery indicator
• Powered either through the use of batteries or
electrical power via Presidium Universal USB Adaptor
Functions of your ARI by Presidium.
Your ARI by Presidium has 4 functional options on the
main screen menu as follows:
To activate a function, use nger to press any of the
function on screen to activate them. To return back to the
previous page, press the power button.
The rest of this handbook will give further information on
how to use the various functions.
Screen Rotation
Test
TutorialSettings

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Included in your package:
• ARI by Presidium
• Protective Carrying Case
• Stone rest
• Quick Guide
• QR Code Card
• USB Cable
1
2
3
8
4 5
67
9
1Protective Cap
2Replaceable Probe Tip
3360° Textured Metal Plated Ergonomic Grip
4Display Screen with OLED Illumination
5Low Battery Indicator
6On/O󰀨/Back Button
7USB Inlet
8Battery Compartment (beneath the lid)
9Battery Cover
Fig. 1

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Powering up your ARI by Presidium
This tester can be powered either through electrical
power via the Presidium Universal USB Adaptor (not
included in your package) or through the use of batteries.
If electrical power is preferred, please ensure that only
the Presidium Universal USB Adaptor is used.
If batteries are preferred, please use 3x AAA batteries.
The use of alkaline batteries is recommended as it should
generally give approximately 4 hours of continuous
operation, while the use of ordinary batteries will give a
shorter operating life.
Remove the battery cover lid on the back of the tester.
(Fig 1.2).
1. GETTING STARTED with your ARI by Presidium
Fig. 1.1
Fig. 1.2

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Take note of the positive (+) and negative (-) directions
of the batteries when inserting them into the tester (Fig.
1.3).
Turning on/o󰀨 your ARI by Presidium
Press and hold the button (Fig. 1.4.1) to turn ON/OFF the
tester without removing the protective cover.
“PRESIDIUM” logo will appear on the display screen,
followed by Product name.
Do not remove the protective cover until the “home” page
is being loaded as the tester is being calibrated during
this time.
Fig. 1.3
Fig. 1.4.1
Fig. 1.4.2

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Cleaning of gemstone prior to testing
Prepare a clean tissue or jewelry cloth. Carefully retrieve
the gemstone with tweezers and place the gemstone face
down on its table facet. (Fig 1.5a)
Gently rub the table of the gemstone against the tissue/
jewelry cloth (Fig. 1.5b).
If your stone is mounted in jewelry, please carefully clean
the stone (Fig 1.6).
Fig. 1.5a
Fig. 1.5b
Fig. 1.6

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Operating Conditions
The gemstone should be clean and dry before testing.
Elaborate cleaning procedures are not normally
necessary.
Low Battery is indicated by the icon at the top right-hand
corner of the display screen.
Note: The power-saving feature will ensure the tester
shuts down automatically after 10 minutes of inactivity.
Do not leave worn out batteries in the battery compartment
as the batteries may corrode or leak and damage the
circuitry of tester. Batteries should be removed when
the instrument is expected to be stored for an extended
period of time.
Batteries do not have to be removed when the electrical
power via a power adaptor is used.

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To begin testing, press the “Test” icon as indicated.
(Fig. 2.1)
When prompted, depress the probe tip 90 degree
perpendicular to the table of the gemstone. Testing will
begin. You will need to hold the tester in this position till
the testing bar on the screen is completed (Fig 2.3).
2. PERFORMING A TEST with your ARI by Presidium
Fig. 2.3
Fig. 2.2
Fig. 2.1

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It is important not to remove the tester from the gemstone
during test. As the tester detects ‘lift’ from gemstone
and test will have to be reconducted. A result will not be
shown.
Beeping sound will be used to indicate the type of results:
• Single beep indicates Diamond
• Single long beep indicates CVD/HPHT/Type IIa
Diamond
• Double beep indicates Moissanite
The testing results will be displayed on the screen.
Fig. 2.4

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For mounted jewelry or gemstones:
Hold the jewelry or mounted gemstone with one hand and
the tester with the other hand (Fig. 2.5).
For proper operation of the tester, the probe tip should be
at a upright position 90 degrees perpendicular to the table
of the gemstone.
Ensure the tip is fully depressed for consistent pressure
between the tip and the gemstone, for the duration of the
testing bar.
Note: Care should be taken when testing mounted
jewelry. Users must ensure that the stones are securely
mounted before conducting the test as the gap between
the stone and setting might lead to an inaccurate reading.
For loose gemstones:
Place the gemstone into the supplied stone rest while
holding the tester with the other hand (Fig. 2.6).
Fig. 2.5
Fig. 2.6

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The probe tip must be placed at a right angle or
perpendicular to the facet of the gemstone for an
accurate reading.
Tests should be conducted on the table of the gemstone
only
It is advisable to conduct multiple tests on the gemstone
as to ensure accuracy.
Cleaning of Optical Probe Tip
A clean optical probe tip helps to attain consistent and
accurate readings.
To clean the optical probe tip,
• Ensure the unit is switched o󰀨.
• Hold the device with the pen tip forming right-angle
(90-degree) with alcohol wipe.
Gently move in circular motion without retracting the tip
(Fig. 2.7) or apply too much force
• Repeat the same motion several times. The cleaning
process is completed and the tester is now ready for
use
Fig. 2.7

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Removing and Replacing the Optical Probe Tip
To remove the optical probe tip, carefully pull out the tip
and replace it with a new one. (Fig. 2.8)
For optimal tester performance, it is recommended to
replace a worn-out optical probe tip when prompted.
Fig. 2.8

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Testing specication of the tester:
3. READING TEST RESULTS on your ARI by
Presidium
Result Description Sound
Diamond The tested gemstone
has the characteristic
light transmittance
ability of a Type Ia
diamond, suggesting
that this could be a
Natural Diamond
Single beep
CVD/HPHT/
Type IIa
The tested gemstone
has the characteristic
light transmittance
ability of a Type IIa
diamond, suggesting
that this could be a
CVD/HPHT/Type IIa
Diamond
Single long beep
Moissanite The tested gemstone
has the characteristic
light transmittance
ability of a Moissanite,
suggesting that this
could be a Moissanite
Double beep

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4.1 Settings Function
Press the gear icon to enter the settings function.
(Fig 4.1a)
In the Settings function, you may adjust the Volume level
and Language selection by pressing on left/right buttons
to toggle between selections.
There are 6 types of languages available:
1. English
2. Simplied Chinese
3. French
4. German
5. Italian
6. Spanish
4. OTHER FUNCTIONS of your ARI by Presidium
Fig. 4.1a
Fig. 4.1b

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4.2 Tutorial Function
Press the Tutorial icon to enter tutorial quick guide for
proper testing procedures.
Fig. 4.2