PRESIDIUM Duo Tester PDT II Mode D'emploi page 12

CAL test disc
• Press the probe tip onto the CAL test disc located on the
left of the indicator lamp (Fig. 1.5).
Apply sufficient pressure to retract the protruding tip
completely into the probe pen. The indicator should rise
to and remain within the red strip (preferably at the
center of red strip) with "CAL" printed on top, within two
to three seconds.
Fig. 1.5
CALIBRATING your Presidium Duo Tester II
All testers have been calibrated during the manufacturing
process and usually no further adjustment or user
intervention to the tester is required.
However, in situations below, calibration will be warranted:
i. A replacement probe pen is used for the first time
ii. Inaccurate readings when checking the functionality of
the instrument.
iii. Testing under extreme temperature conditions (See
section under "Operating under Extreme Conditions")
Thermal Conductivity Calibration
To begin calibration, you will need to access the Thermal
Conductivity CAL inlet and depress the tact switch once
using the provided Calibration Pin. Once depressed, the
Reflectivity Display Screen will show a blinking "1".
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