ALTANA Micro-Gloss Manual - Manual (Page 20)

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After the zero setting has been performed, the
display AIR will appear. To proceed with this, hold
the instrument in midair and press the operate
button.
The successful calibration is confirmed in the
display (OK). The instrument returns to the
selection menu Calibration.
Note:
The film thickness measurement is also influenced
by the basis metal. It is therefore advisable to
perform the zero calibration on the uncoated metal
which is used for the object to be measured.
In this case place the instrument on your original
substrate instead of on the supplied metal plate.
5.2.3 Change cal.values
The gloss values of the calibration standard in the
holder included with delivery are saved in the
measuring device. During automatic calibration, this
data is assigned to the standard in the holder.
In some cases it will be necessary to enter data for
a new calibration standard, for example if the
previous standard has been damaged or scratched.
To ensure exact calibration, only original
standards from the manufacturer should be
used.
You can use the path shown on the right side to
reach the Change cal.values menu option.
At three angle units, a selection menu will appear
for geometries. Select the desired geometry and
press the scroll wheel.
Calibrate