Cleaning your gemstone prior to testing
Prepare a clean tissue. Carefully retrieve the gemstone
with tweezers and place the gemstone face down on the
table (Fig. 1.5).
Gently rub the table of gemstone against the
tissue/jewellery cloth and place the gemstone on the
centre of the Test Pad. Do not use ngers to place the
gemstone on test pad as ngerprint will affect the test
results. (Fig. 1.6).
Fig. 1.5
Fig. 1.6
To prevent inaccurate readings, replace with new battery
if the “Low Batt” indicator lights up. A test should not be
performed when the battery power is low or weak.
Batteries do not have to be removed when the AC
adaptor is in use.
13
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