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Getting started
Powering up GemPen
GemPen® is charged using the enclosed cable,
connected to a USB port. Please use a CE-marked
charging source, 5V 1A.
Charge by inserting the provided standard USB cable
to the port located at the side of GemPen® as shown
in gure 1. Connect the adapter into an external power
socket.
Switching on and o your device
To switch on your GemPen®, turn the knob one click
clockwise (60°) as illustrated in the gure 2. A white
light will begin to shine indicating that GemPen® is
turned on. To switch o GemPen® turn the knob one
click in the opposite direction as illustrated in gure 3.
®
Figure 1
Figure 3
Auto o
To ensure that GemPen® conserves energy and to avoid
potential damages, the device will automatically turn o
within 1 minute after turned on.
Battery indicator
When the battery is too low to function properly, the
LED indicator will blink red. GemPen® is fully charged
when the LED indicator shows the constant color of
green.
Battery Information
Internal rechargeable standard lithium-ion battery
18650. Don’t attempt to replace the GemPen® battery
yourself—you may damage the battery, which could
cause overheating, re, and injury. The lithium-ion
battery in your GemPen® should be serviced or recycled
by Gemometrics, and must be recycled or disposed of
separately from household waste. Dispose of batteries
according to your local environmental laws and
guidelines.
Operational environment
GemPen® can be operated in temperatures ranging
from -10° C to + 35° C and in a maximum of 95%
humidity non condensing. GemPen® can be charged in
temperatures ranging from 0° C to +45° C.
Figure 2
Register your product
For more information and to register your GemPen®,
visit www.gemometrics.com.
Page 2
Performing a test
Connect a lter to GemPen® as illustrated in gure 4.
Figure 4
Rotate GemPen® and examine the LED indicator next
to the USB-C port on the unit. If it glows in the color
of white the unit can be used for testing gemstones.
After GemPen® is switched on, hold and point GemPen®
towards your gemstone. The lter glass should be within
30-50 mm from the gemstone. It is highly recommended
to place your gemstone in the GemPen® Travel Case
before switching GemPen® on. Depending on the
position of the gemstone you may want to twist and tilt
GemPen® for a more accurate result. When conducting
a screening test, it should look like the illustration in
gure 5.
On www.gemometrics.com you will nd the Diamond
Map, the Gemstone Map and the Test Trees which
could be used as a reference to validate your gemstones.
The results are indicative.
Figure 5
Important notes
• It is necessary to conduct prior tests to ascertain the
type of stone that is tested.
• To increase accuracy, it is recommended to use the
GemPen® Travel Case as shown in the illustration in
gure 5.
• Do not use GemPen® when the power indicates a red
light, as it will yield inaccurate results.
• Please apply the right lter while validating a
gemstone.
In case the lters are damaged, please order new on our
website www.gemometrics.com.
Warranty
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