Zero Point Calibration - Wohler HBF 420 Mode D'emploi

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4.6

Zero point calibration

Enter the value for the lower alarm threshold
with the up and down keys (2 and 4).
Press the Set key (1) to confirm.
"Al 2" and subsequently the setting for the
upper alarm threshold relating to the relative
humidity will be displayed.
Enter the value for the upper alarm threshold
with the up and down keys (2 and 4).
Press the Set key (1) to confirm.
The meter will return to the menu for entering
the material temperature.
Press the ON/OFF/Escape key (3) to bring up
the hold-mode again.
Press the M key (2) to bring up the measuring-
mode.
The instrument zero point should be calibrated
before each measurement.
To do so, hold the Wöhler HBF 420 in the air
without allowing it to come into contact with
any material.
NOTE!
When taking dielectric measurements, ensure that
you hold the probe at least 15 cm away from any
material during the zero point calibration and that
you hold only the lower part of the instrument in
your hand.
Then press
(>o<)
mode. The Wöhler HBF 420 automatically sets
and displays the zero point.
key in normal measurement
Device
EN
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