PRESIDIUM SAM Manual Del Usuario página 17

Cleaning the probe tip
Please note that if the tester is being used for the first
time, or if the tester has not been used for a week, it is
advisable to clean the probe tip using a piece of paper to
attain a consistent and accurate reading.
• Ensure the unit is switched off.
• Hold the probe pen with the pen tip forming a right-
angle (90-degree) with any paper or stone rest (as
provided). Gently move in a circular motion without
retracting the tip (Fig. 2.3).
• Repeat the same motion several times. The cleaning
process is completed and the tester is now ready for
use.
Fig. 2.3
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