Techkon SpectroDens Manual page 59

In order to take correct measurements an
absolute white calibration must be per-
formed and will be confirmed in the display
when done.
A measurement of the paper white is neces-
sary for correct calculations.
Now the instrument is ready to measure. The
used paper type and backing are indicated in
the display.
When measuring solid inks the values are
compared to the ISO reference values. The
∆E*-value is indicated and the symbol shows
if the value is within or out of tolerance.
The recognized color and L*a*b* value of the
measurement are displayed as well.
The selected paper type and backing type are
always indicated.
Manual TECHKON SpectroDens Chapter 2 – Measurement functions Page 59