Konica Minolta Multi Gloss 268 Betriebsanleitung Seite 48

Calibration and Autodiagnosis
Calibrating standards
To ensure exact calibration, only
original standards from the
manufacturer should be used. The-
se are calibrated against tested pri-
mary standards. Their surface must
not be touched and must be
protected against scratches. Due to
environmental influences, however,
the values of standards can change
over the course of time even if they
are handled gently. For this reason,
you should have the calibration
standards tested by the
manufacturer at regular intervals
(we recommend annually).
Checking standard
We recommend the regular use of
a separate test standard for control
of test equipment. The frequency of
this verification depends on the
conditions of usage (for example
monthly). The gloss standards are
integrated into an aluminum guide
in which the measurement device is
positioned exactly. Perform the
measurement as you would
normally, for example in Basic
mode. The displayed measurement
value must not deviate from the
value printed on the standard by
more than one unit. Otherwise you
should check whether there is dirt
and dust on the high gloss stan-
dard in the holder or test standard.
If cleaning and recalibration do not
offer any improvement, please get
in touch with our Customer Service.
Cleaning standards
The accuracy of the measurement
can be significantly impaired by
using dirty or damaged standards.
Since the surfaces of the standards
are highly sensitive, cleaning must
be undertaken with great care.
To clean standards, use a new lint-
free cloth, dust-free lens paper or
an optical cloth as included with the
device.
Apply only slight pressure as you
clean and make certain there are
no large particles stuck in the cloth
that could damage the surface. Do
not use any acetone!
For dirt that is difficult to remove,
use an optical cloth dipped in li-
quid. Then wipe the surface with a
dry optical cloth.
Exact calibration is not possible
unless the standard is in perfect
condition. If the condition of the
standard seems doubtful because
of its appearance or measurement
errors, we will be happy to check it
for you.
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