White Calibration - Minolta CR-400 Instruction Manual

White Calibration

When using the instrument for long periods of time, the displayed value may change depending on
changes in the environment. Therefore, in order to achieve accurate measurements, we recommend
that white calibration is done regularly using the white calibration plate. White calibration should also
be done before measuring after a long time has passed since the instrument was last used.
White calibration should be done under the same temperature conditions as measurement.
1
[Operating Procedure]
1 Press the Calibration key
• The white calibration screen appears.
［ＣＡＬＩＢ．］
◎ＷＨＩＴＥ ＣＡＬＩＢ．
Ｙ＝ ０．００
ｘ＝０．００００
ｙ＝０．００００
ＵＳＥＲ ＣＡＬＩＢ．
Ｐ００
No white calibration
data has been set.
Set the calibration data listed on the back of the white calibration plate cover
2
using the
• The cursor moves automatically to the next position when setting data using the numeric pad.
• Use the
• Go to step 3, if white calibration data has already been set.
[Example]
• Illuminants C
• Illuminants D
86
Color Space key
2
4
while in the measurement screen.
C P ［００００］
key and the numeric pad.
to move the cursor to make corrections.
Y=93.5 x=0.3114 y=0.3190
Y=93.5 x=0.3140 y=0.3318
65
POWER
4
3
［ＣＡＬＩＢ．］
◎ＷＨＩＴＥ ＣＡＬＩＢ．
Ｙ＝ 9 3 ．5
ｘ＝０．3 1 1 4
ｙ＝０．3 1 9 ０
ＵＳＥＲ ＣＡＬＩＢ．
Ｐ００
White calibration data
has been set.
Ready lamp
White calibration plate
C P ［００００］