PRESIDIUM PGI-TD5612 Mode D'emploi page 12

An "Error" message will appear if "SYS CHECK" fails
(Fig 1.4.3). The error can be due to the following reasons:
1. The tip is not connected properly.
2. A new tip has been inserted and its settings are
different as it has not been properly calibrated.
3. There are broken pin connections within the unit or
the tip has been damaged.
In such situations, it is recommended for you to remove,
re-insert and recalibrate the tip. If the error persists,
please contact Presidium.
Cleaning of 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 1.5a)
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Fig. 1.4.3
Fig. 1.5a