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Summary of Contents for PRESIDIUM Duo Tester II
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Page 1: Table Of Contents
I. Disclaimers, Exclusions and Limitations of Liability pg. 04 II. About this book pg. 05 III. About your Presidium Duo Tester II (PDT II) pg. 06 IV. IMPORTANT NOTICE pg. 09 1. GETTING STARTED with your Presidium Duo Tester II (PDT II) pg. -
Page 2: Disclaimers, Exclusions And Limitations Of Liability
The tester or Presidium Duo Tester II (PDT II) 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... -
Page 3: About This Book
II. About this book Thank you for purchasing the Presidium Duo Tester II (“PDT II” or “tester”). 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. -
Page 4: About Your Presidium Duo Tester Ii (Pdt Ii)
The Presidium Duo Tester II (PDT II) with a Col- or Stone Estimator display will assist users to distinguish popular colored gemstones from each other. - Page 5 The Presidium Duo Tester II features the following: • Retractable thermoelectric probe tip that ensures constant pressure between probe tip and gemstone • Industry’s thinnest probe tip (0.6mm) for testing gemstones as small as 0.02ct • Metal alert buzzer to ensure that probe tip is in contact with gemstone during testing •...
- Page 6 Glass Test Disc ON/OFF LED Indicator CAL Test Disc Thermal Conductivity Calibration inlet Reflectivity Calibration Inlet Cylinder Cap Gemstone Test Pad Reflectivity Display Screen ON/OFF Display Button ON/OFF Button DC Power Jack Probe Pen Probe Protective Cap...
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Page 7: Important Notice
Do not paint the tester. Paint can clog the moving parts and prevent proper operation. If the tester is not working properly, kindly contact our Customer Service at service@presidium.com.sg or Presidium Instruments Pte Ltd Unit 7, 207 Henderson Road Singapore 159550... -
Page 8: Getting Started With Your Presidium Duo Tester Ii (Pdt Ii)
AC adaptor to the tester and the other end directly into a suitable electrical outlet. Please ensure that only the adaptor supplied by Presidium is used. If batteries are used (5 x AA batteries), take note of the positive (+) and negative (-) directions of batteries when inserting the batteries into the tester (Fig. - Page 9 Slide the [ON/OFF] button at the back of the unit to turn on the unit (Fig. 1.3) and wait for approximately 10 seconds or until the red LED lights up. Fig. 1.3 Testing to ensure your Presidium Duo Tester II is functioning properly Glass Test disc •...
- Page 10 “CAL” printed on top, within two to three seconds. Fig. 1.5 CALIBRATING your Presidium Duo Tester II All testers have been calibrated during the manufacturing process and usually no further adjustment or user intervention to the tester is required.
- Page 11 Depress the probe pen against the “CAL” disc and ensure that the probe tip is fully depressed and retracted into the housing of the probe pen. Please ensure that your fingers are touching the metallic chrome area of the probe pen. The needle indicator will calibrate to the red “CAL”...
- Page 12 Recommended testing conditions The gemstone should be clean and dry before testing. However, elaborate cleaning procedures are not normally necessary (Fig. 1.6). Fig. 1.6 The recommended testing temperature is between 23°C – 27°C or 73°F – 80°F. Please allow the gemstone or jewelry piece to adjust to room temperature prior to testing.
- Page 13 Cleaning your 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. 1.7a). Fig. 1.7a Gently rub the table of the gemstone against the tissue/ jewelry cloth (Fig.
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Page 14: Performing A Test On Your Presidium
For testing loose gemstones: Place the gemstone on the metal stone rest and hold the metal stone rest with one hand while holding the probe with the other hand (Fig. 2.2). Fig. 2.2 Note: Metal stone rest is not provided by Presidium. - Page 15 Place the gemstone on the metal stone rest and hold the metal stone rest with one hand while holding the probe with the other hand (Fig. 2.2). Performing an optical test with your Presidium Duo Tester II Replace the protective cover with the cylinder and press the “DISPLAY”...
- Page 16 *7-simulant gemstones set is sold separately as an optional item. Tips for using your Presidium Duo Tester II If the tester is being used for the first time, or if the tester has not been used for a week, it is advisable to clean the probe tip using a piece of paper to attain consistent and accurate reading.
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Page 17: Reading Test Results On Your
• The tester will provide all possible results on the display. • The Presidium Duo Tester II should be used only to confirm the identity of suspected gemstone. • An example of reading the result on the meter is given... - Page 18 Sapphire vs. Tanzanite Jadeite Chrysoprase Aventurine Sapphire vs. Iolite Jadeite Quartz Sapphire vs. Spinel Ruby Spinel Sapphire vs. Citrine Ruby Garnet Sapphire vs. Topaz Topaz Aquamarine Sapphire vs. Tourmaline Topaz Amethyst Emerald vs. Jadeite Topaz Citrine Emerald vs. Garnet Spinel Garnet Jadeite vs.
- Page 19 4. TAKING CARE of your Presidium Duo Tester II • The probe and wire tip is extremely sensitive and should be handles with care. Caution should be taken so as not to damage the probe tip. • Do not leave worn out batteries in the battery compartment as the batteries may corrode,leak or damage the tester.
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