ALTANA BYK-mac Manual - Manual (Page 21)

20
English
6. Calibrate
Calibration Information
Standards
The instrument comes with 2 calibration standards.
The light trap is used to perform the zero reflectance
calibration (black calibration). Always store the light
trap with the protection cover in place when not in
use.
The white standard is fixed in a case that has a
hinged cover. It is used to perform the 100%
reflectance calibration and to calibrate the camera.
Additionally two checking standards are supplied to
audit instrument performance:
A cyan standard for color and an effect standard for
sparkle and graininess.
When calibration is required, the device will display
a message.
The cyan check must be accomplished every 7
days. Black and white calibration must be
accomplished every 3 months. 24 hours before the
time expires, a warning message is displayed.
Light trap
Protection
Measurement
White Standard
Cyan standard, effect
standard
Calibrate