12
Maintaining the Novo-Shade Duo™ and
calibration tile
The tiles should be checked to ensure that they are clean and in good
condition. If necessary the tile may be wiped with a cloth moistened with
warm soapy water and dried with a lint-free cloth.
Marks on the surface of the white reflectance tile should be removed
by carefully scraping the surface with a scalpel. For accurate calibration
a flat surface must be maintained. If the tile is damaged with deep
scratches a replacement tile must be purchased.
It is important that tiles have an up-to-date certificate. Recalibration is
normally required every 12 months.
The instrument should be checked to ensure the metal base plate is
clean. Care should always be taken to avoid damage to the instrument
base plate. The optic cavities and lenses must also be free of dust and
other contamination.