GMT DIAMOND COMBO TESTER User manual

DIAMOND COMBO TESTER
User Manual
USER MANUAL
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INTRODUCTION
OPERATION
DIAGRAM
PREPARATION
Thank you for purchasing the Diamond Combo Tester.
The tester is designed to distinguish natural diamond from
moissanite and other fake stones simultaneously and
quickly.
FEATURES:
• Easy operation without the need to adjust the LED bar
graph via volume control to match stones of different sizes
like that used in other diamond tester models.
• Could be powered by AAA alkaline batteries, NiMH
batteries or an AC power adaptor (Not included in the set).
• Can distinguish stones as small as 2pt.
• Low battery indicator.
• Equipped with an elastic probe tip.
• Built-in metal detector
• Beep reminding of shutdown after around 10 mins. of non-use.
NOTE:
When testing, hold the tester
by placing your index and
thumb on the conductive
panels, and keep the fingers
away from the tip cone area.
The probe tip must be placed
at a right angle (90° position)
or perpendicular to the facet
of the gemstone for an
accurate reading. 90°
Remove the battery cover and insert 3pcs of AAA batteries
into the battery compartment correctly with the direction of
positive and negative pole. Turn the power ON/OFF switch
to “ON”, the READY lamp will blink. Then wait for about 25
seconds for the testing probe to be heated. The tester is
ready for testing when the green lamp lights up.
4
6
2
3
1
5
1. Probe
2. Conductive panel
3. Battery cover
4. Power ON/OFF switch
5. DC socket for AC adaptor
6. Testing Base
READY --------------SIMULANT ---------------
LBAT
DIAMOND
MOISSANITEMETAL
INDICATOR BAR GRAPH
• Use a gem cloth to clean the stones to be tested. When
the testing is conducted in a room with high humidity, it is
better to scratch the tester’s probe tip on a dry cloth for
several times.
• For mounted jewelry, please hold the jewelry with one
hand; For loose stone, you are required to place the stone
on the Testing Base, and hold testing base with one hand.
Conductive panel
Cone area

90°
• Use the other hand to hold the tester, keep
contact with the conductive panels using
your index and thumb and keep the fingers
away from the tip cone area.
•The probe tip must be placed at a right
angle (90° position) or perpendicular to the
facet of the gemstone for an accurate
reading.
- If the tested object is a DIAMOND, the diamond zone
green indicator lights up and a “BI-BI-BI” will be heard.
- If the tested object is a MOISSANITE, the moissanite
zone blue indicator lights up and a “BI-BI-BI” will be
heard.
- If the tested object is other SIMULANT, the simulant
zone red indicator lights up.
- If the tested object is METAL, the metal zone orange
indicator lights up and beeps a long “Bi---“ sound.
GREEN indicator will light
up when the stone is a
REAL DIAMOND
BLUE indicator will light up
when the stone is a
MOISSANITE
RED indicator will light up
when the stone is simulant
ORANGE indicator will
light up when the object
is metal
WHEN TESTING, HOLD THE TESTER IN
PERPENDICULAR POSITION (90°).
Working voltage
Probe warm up time
Working time
Net weight
Tester size
Gross weight
Gift box size
Working temperature
Working Humidity
DC 4.5V, AAA alkaline or
Ni-MH battery or AC adaptor
(110V-240V, DC 4.2V, optional)
About 25 seconds
About 2 hours for continuous use
65g (not including batteries)
173mm x 42mm x 22mm
210g
215mm x 90mm x 48mm
18°C ~ 30°C
<70% RH
SPECIFICATIONS
•When conducting a test, the room must be at a
temperature of 18°C~30°C and with a humidity
of <70% RH.
• For long time use, we suggest to use an AC adaptor
(110V-240V, DC4.2V, optional).
• When using an AC adaptor, please use the adaptor
supplied by the manufacturer.
• If LED lamp above LBAT lights up red, it means the
batteries are low and new batteries should be replaced.
Otherwise the low batteries would lead to inaccurate
testing results.
• If the tester not being used for a long time, batteries
should be removed from the tester.
IMPORTANT NOTICE
• Put the testing probe protective cover on when the tester
is not in use.
• When using the tester in a humid environment or it is not
used for a long time, the tester’s probe tip would be
oxidization and turns black which would lower the
sensitivity and incur a wrong reading when testing.
• To make sure its testing accuracy, when the probe tip
turns black, please rub the tip on the surface of a dry cloth
or paper gently until the tip gets brighter.
• This tester has already been calibrated at the factory.
Generally, it’s not necessary for calibration again.
MAINTAINANCE
• When using the tester to test a same gem stone
repeatedly, wait for several seconds between each
testing so that the stone is cooled to a room
temperature.
• After a testing, the tester should be held for several
seconds until its probe tip is reheated to rated
temperature for another testing.
NOTE:
Conductive panel
Cone
area