PRESIDIUM Gem Tester II Manual Del Usuario página 11

Fig. 1.4
Diamond test disc
• Press the probe tip onto the diamond test disc located
on the right of the indicator lamp (Fig. 1.5). Apply
sufficient pressure to retract the protruding tip
completely into the probe pen. Once this has been
completed, the needle should rise and reach its
highest point well within the green band of the meter
display, within two to three seconds.
Fig. 1.5
Calibration
All testers have been calibrated during the manufacturing
process and no further adjustment or user intervention to
the tester is required.
Self-calibration should not be attempted. To minimize any
risks associated, users should contact Presidium at
service@presidium.com.sg or its service center for
assistance. In the event that users require the
manufacturer to re-calibrate the unit, the users will bear
the associated to/fro freight cost for the shipping of unit to
the service center.
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