ALTANA Spectro-Guide Sphere Gloss Manual - Manual (Page 70)

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17. Cleaning and maintenance
• Do not insert any objects into the measurement
aperture for cleaning. The instrument could get
damaged - affecting a proper and safe operation.
• Do not use any acetone! The instrument
housing is resistant to a number of solvents, but
cannot be guaranteed to withstand all chemicals.
You should therefore use a soft, moist cloth for
cleaning. For cleaning excessive dirt, use ethanol or
cleaning alcohol.
Cleaning standards
• Do not use any acetone!
The accuracy of the measurement can be
significantly impacted 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.
Apply only slight pressure as you clean and make
certain there are no large particles stuck in the cloth
that could damage the surface.
For dirt that is difficult to remove, use an optical
cloth dipped in liquid. 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.
Cleaning and maintenance