3. Operation
3.1 Key Descriptions
[FUNCTION]/[t]
• Selects the function that will be used for measurement. Each
momentary depression will cause the display to page through XYZ,
Yxy, L*a*b*, L*u*v*, L*C*h°, Whiteness, & Yellowness.
• Decreases numeric values when used with the
[DIF]
key during
entry of reference or calibration values.
• Selects Calibration when pressed with
[ILLUM]
key.
• Selects various steps when in system setup procedures.
[ILLUM]/[s]
• When held depressed activates illuminant/observer selection,
thereafter, momentary depressions select the illuminant to be
used. The available illuminants are:
Note: the [DIF] key selects the Observer (CIE 1931 2° or CIE 1964
10°) to be used.
• Increases numeric values when used with [DIF] key during entry
of reference or calibration values.
• Displays the reference number when pressed momentarily.
• Selects Calibrate when pressed with the
[FUNCTION]
key.
[DIF]/[ts]
• When at function level, toggles Delta (∆) On and Off with each
depression. Delta being the difference mode.
• Decreases reference or calibration values when used with the
[FUNCTION]
key.
• Increases numeric values when used with the
[ILLUM]
key.
FUNCTION ILLUM
DIF
CAL
See Section
4.0
4.0
5.0
3.3
4.0
3.5
4.0
3.5
4.0
4.0
3.2
C A
F7F2 F12F11
D
65
D
50
7
