ALTANA BYK-mac i ROBOTIC Manual - Manual (Page 22)

21
Cleaning and Maintenance
The best cleaning results are achieved when
moving the optical cloth from left to right, not
wiping.
For dirt that is difficult to remove, use an optical
cloth dipped in liquid (e.g. propanol). Wipe the tile in
one pass several times and wipe it again with a dry
cloth after the propanol has been evaporated.
It is highly recommended to handle the standards
with great care. They should always be stored
enclosed.
10.2 Light protection cover
The measurement aperture of the instrument is
surrounded by a light protection cover made out of
rubber. It acts as a protection against ambient light.
Keep the cover always clean and exchange it when
beeing dirty or damaged.