DRC J-Mini Pro User manual

DIAMTECH RESEARCH CENTRE PRIVATE LIMITED
J-Mini Pro©
User Manual v 1.0.1
Quick Start Guide
and
User Manual version 1.0.1
Introduction
J-Mini Pro has been developed and designed for the efficient and productive identification of CVD and HTHP
laboratory grown diamonds, either as loose stones or in diamond-set jewelry. Laboratory grown diamonds
(LGD) are visually indistinguishable from natural diamonds and the supply pipeline is contaminated by the
undisclosed intrusion of LGD into every part of the jewelry industry.
Because all concerned interests in the jewelry industry desire to represent their products fairly and honestly, it
is necessary to have some type of device that detects laboratory grown diamondsto prevent any possible
confusion or misrepresentation. J-Mini Pro is the latest device designed to identify laboratory grown diamonds.
Consumers have a fundamental right to know about the origins of the products that they purchase. J-Mini Pro
allows the Retailer, Wholesaler, and Manufacturer to verify the content of the merchandise that they sell.
J-Mini Pro is a machine that can facilitate the screening process for CVD and HTHP laboratory grown
diamonds to protect consumers from undisclosed LGD. This manual is a guide in the effective, efficient, and
safe use of this instrument. Please review it carefully before the use of the instrument.
CONFIDENTIAL
The information contained herein is the property of DRC.
Any reproduction, publication, or distribution to a third party is strictly forbidden.

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Table of Contents
1 Safety First ..................................................................................................................................................................... 3
1.1 Symbol Notations and Definitions ........................................................................................................................ 3
1.2 Caution –Laser Radiation ..................................................................................................................................... 4
2 Physical Specifications, Designed Functions, Capabilities and Features .................................................................. 5
3 J-Mini and Included Accessories................................................................................................................................... 5
4 Set Up (no tools are required for assembly) ................................................................................................................. 7
4.1 Un-boxing................................................................................................................................................................ 7
4.2 Inventory the Contents .......................................................................................................................................... 7
4.3 Set Up the J-Mini Pro Machine ............................................................................................................................... 7
4.4 Limitations.............................................................................................................................................................. 7
5 Initial Start-Up .............................................................................................................................................................. 7
5.1 Mobile Device.......................................................................................................................................................... 8
5.2 System Setup .......................................................................................................................................................... 9
6 J-Mini Pro Program Desktop......................................................................................................................................... 11
6.1 Navigating the J-Mini Pro Desktop ...................................................................................................................... 12
7 Preparing for Merchandise Scanning ......................................................................................................................... 13
7.1 Step 1..................................................................................................................................................................... 13
7.2 Preparing to Scan ................................................................................................................................................. 14
7.3 Scanning................................................................................................................................................................ 15
8 Scanning Results Analysis .......................................................................................................................................... 16
8.1 Automated Scanning Results: What You See ..................................................................................................... 16
8.2 Basic Detection Results........................................................................................................................................ 16
9 Observing and Interpreting Scanned Results ............................................................................................................ 17
9.1 Understanding Scan Results ............................................................................................................................... 17
9.2 Basic Scanning Diamond Identification.............................................................................................................. 18
9.3 Advanced Scanning Interpretation ..................................................................................................................... 19
9.4 Stage One Advanced Analysis ............................................................................................................................. 19
9.5 Stage Two Advanced Analysis ............................................................................................................................. 21
10 Additional Features and Viewing Options ............................................................................................................. 21
10.1 Split-Screen Analysis ....................................................................................................................................... 22
10.2 Additional Features.......................................................................................................................................... 23
10.3 Archived Scans and Reports ............................................................................................................................ 24
11 Maintenance and Support ....................................................................................................................................... 26
11.1 Warranty Claim Process .................................................................................................................................. 26
11.2 Software License............................................................................................................................................... 26
12 Warranty................................................................................................................................................................... 29

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12.1 Limited Warranty ............................................................................................................................................. 29
12.2 Exclusion ........................................................................................................................................................... 29
12.3 Terms and Conditions ...................................................................................................................................... 29
12.4 Privacy............................................................................................................................................................... 32
12.5 Machine Maintenance Policy ........................................................................................................................... 32
12.6 Machine Service Policy..................................................................................................................................... 32
12.7 Using Third-Party Apps And Services Policy ................................................................................................. 32
1Safety First
At DRC, the safety of everyone who uses our instruments is important. We recommend reading the safety
information and operating instructions before operating J-MiniPro. Failure to observe these instructions can
lead to injury, damage to the device, and less than optimal operating results.
J-Mini Pro has been designed to be operated safely and effectively by conscientious operators who observe the
safety and operational protocols explained in this document.
1.1 Symbol Notations and Definitions
Please observe the written and graphic cautions and warnings explained in this manual
J-Mini Pro, its hardware and operating software are the exclusive property of DRC, Surat, India. The
purchase of a J-Mini Pro includes only a license to operate the proprietary software that we have developed.
Altering or copying the software is prohibited. It may result in the degradation of the software program
and danger to the user. Tampering with the software or hardware may result in damage and inoperability
of the instrument and also result in the injury of the operator. Tampering with J-Mini Pro also voids the
warranty or the obligation of DRC to maintain or support the operation of J-Mini Pro.

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Symbol
Description
This symbol indicates possible software damage or loss of data that may
occur and result in a permanent loss of stored information. Attention is
required by an authorized DRC technical specialist.
This symbol indicates potential exposure to rays of invisible laser radiation.
Avoid exposing eyes and skin to direct or scattered radiation. Proper eye
and skin protection is required.
To reduce the risk of electric shock or damage to the equipment:
•Do not disable the power cord grounding plug.It is an important
safety feature.
•Plug the power cord into a grounded electrical outlet that is
always easily accessible.
•Unplug the power cord from the power supply to disconnect
power to the equipment.
Place the power cord where it is not damaged by or compressed by items
placed near it.
1.2 Caution –Laser Radiation
Adhere to all written and graphics symbol warnings in this user manual. For safe and productive
operations, this instrument should only be operated by authorized and trained users who have read the
procedures and guidelines of this manual.
Do not stare at the internal light or view it through optical devices. This is a Class II-A laser product.
Always avoid eye and skin exposure to direct or indirect radiation. Use proper, approved eye and skin
protection.
Lasers are classified for safety purposes based on their potential for causing injury to humans’ eyes and
skin.
Most products that incorporate lasers are required by law to have a label listing the Class.

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2Physical Specifications, Designed Functions,
Capabilities and Features
Physical Specifications for J-MiniPro
•Dimensions: 219 x 125 x 116 mm. (8.6 x 4.9 x 4.6 inches)
•Weight: 2.6kg (approximately 6 pounds)
Power Supply
•Input voltage range: 120 - 240 V
•Input Current: >=3A
•Typical Response Time: 5 s
•Temperature Range: 5 –35 degrees C
The J-MiniPro manufactured by DRC has been designed and developed for the identification of CVD and HPHT
laboratory grown diamonds. It has been created with the following functions.
•Detection of both CVD and HTHP laboratory grown diamonds
oDiamonds of any shape, including rough or unfinished stones
oDiamonds from 0.003 carat in weight and larger, approximately .80 - .85 mm.,
(Sieve size +0000 –000)
oLoose stones (unmounted in jewelry) or stones mounted in jewelry
oDiamonds in the color range of D through J-K color (GIA scale)
•Use the J-Mini and its integrated mobile phone software only for its intended use as described in this
manual.
•Keep the device dry and away from liquids to avoid electrical shorts and shocks.
•The J-Mini is not heat-resistant: please keep it away from radiators and open flames.
•Repairs must be performed only by an authorized service engineer. Unauthorized tampering with the
device will void the warranty
•Do not modify or alter the device.
•Never operate any electrical device if it has a damaged cord or plug, if it is not working properly, if it
has been dropped or damaged. Call DRC for technical support.
3J-Mini Pro and Included Accessories

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Loose Diamond Tray
Jewelry or Ring Tray
USB Cable and Plug
Silver Sample Pendant
with three diamonds,
each 0.003 carat
Integrated Mobile
Phone/Computer
Power Button
Power Outlet
Scanning Tray
Slide-In Drawer

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4Set Up (no tools are required for assembly)
4.1 Un-boxing
4.2 Inventory the Contents
4.3 Set Up the Machine
4.4 Limitations
Initial Start-Up
1Cut any exterior strapping, and any
cellophane wrapping and discard
(responsibly)
2Open the package carefully
3Separate the contents from the foam
packaging
4We suggest that you keep the box, if possible,
for at least 60 days
5Lay out all the components
6Check them against the above itemization of components and trays
7Make note of any items that are missing or damaged
8Contact the DRC Support Team as noted on the laminated worksheet to arrange for
replacements to be sent and possibly a claim request from the carrier. Report any
shortage or damage to [e-mail].
9Set the J-Mini Pro on a sturdy table, countertop, or desk
10 The surface should be flat and level
11 J-Mini Pro does not identify CZ (Cubic Zirconia) or Moissanite.
12 It is made only to detect laboratory grown diamonds. Nevertheless, both stones can be easily
identified using a hand loupe as both are noticeably doubly refractive.

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4.2 Mobile Device
4.2.1 Note that the default mobile device used in the J-Mini is the
Nokia XR20. User instructions for this mobile phone can be
found here:
https://www.nokia.com/phones/en_us/support/nokia-xr20-
user-guide
a. The integrated mobile phone is not intended to be used
as a personal communication device. DO NOT remove it
and try to use it for this purpose.
b. The Nokia mobile device is shipped with a prietary DRC
software application pre-installed.
c. Do not remove the phone from its housing unless
instructed to do so by the Support Team at DRC.
d. This phone is shipped with a minimal charge. We
suggest that once you plug in the J-Mini, the device is
allowed to charge for 2 to 3 hours.
e. If the battery is completely discharged, it may take
several minutes before the charging indicator is
displayed.
f. A SIM card is preinstalled in this mobile device and should not be removed or altered without
speaking to [e-mail].
4.2.2 Insert the proper end of the USB cord into the outlet at the base of the instrument.
4.2.3 Insert the other end of the USB cord into the power plug and plug the unit into a grounded power
source.

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Home Screen
4.3 System Setup
To switch on your phone, press and hold the power key until the phone
vibrates.
•When the phone is on for the first time, choose your language
and time. Select Settings/Menu >> Time & language > Date
and time The DRC default language is English.
•Follow the instructions shown on your phone.
•Turn on Wi-Fi. This phone does not use a mobile data
connection. It requires a Wi-Fi network.
oTap Settings/Menu > Network & Internet > Wi-Fi.
oSwitch Wi-Fi to ON.
oSelect the connection/network that you want to use.
oEnter your network’s Wi-Fi password.
oYour Wi-Fi connection is active when network Wi-Fi
icon is shown on the status bar at the top of the screen.
•Install Available updates. This mobile device is shipped with the most current software; however, it is
helpful to check for the latest Android software updates.
oTap Settings > System > Advanced > System update > Check for Update to check if updates are
available.
1. Fingerprint sensor
2. Camera
3. Microphone
4. Flash
5. SIM and memory card slot
6. The Google Assistant/Google
Search key1
7. Front camera
8. Earpiece
9. Headset connector
10. Volume keys
11. Power/Lock key
12. USB connector
13. Microphone
14. Loudspeaker

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oIf your phone notifies you that an update is available, follow the instructions shown on your
phone.
•For everyday operation, power up the unit by pushing the Power Button on the side of the mobile
device.
•Select either the Loose Diamond Tray or the Jewelry tray, seat it on the Slide-In Tray, and push the
tray into the machine.
•The device will turn on and the home screen will display an icon labelled DRC. Tap this button and wait for
the scanning program to load and display the DRC J-Mini Pro home screen