PRESIDIUM Gem Tester II Manual Del Usuario página 10

Fig. 1.2
Switch the tester to the ON position, wait for
approximately 20 seconds for the initial warm-up
period (Fig. 1.3). At this point, it is quite common if the
reading slightly above zero is indicated on the meter.
Fig. 1.3
Testing to ensure your Presidium Gem Tester is
functioning properly
Simulant test disc
• Press the probe tip onto the simulant test disc located
on the left of the indicator lamp (Fig.1.4). Apply
sufficient pressure to retract the protruding tip
completely into the probe pen. The indicator should
rise to and remain within the white strip (preferably at
the center of white strip) with "CAL" printed on top,
within two to three seconds.
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