Changing the Aperture . . . continued
Aperture Selection
When a different size aperture is installed in the instrument, the setting
must be changed. The instrument must also be recalibrated.
To change aperture setting:
1) Press [FUNCTION] key and [SETUP]
key simultaneously.
2) Press [REF] (yes) key to select
calibration.
The copyright and software version
are momentarily displayed.
3) Press [REF] (change) key.
4) Press [FUNCTION] (no) key to enter
Aperture menu.
5) Select Aperture Size.
* Press [REF] (other) key to page
through "4.0mm", "8.0mm", and
"20mm."
* After aperture selection, press
[FUNCTION] (next) key to go to
"READ CAL WHITE" menu. White
cal and zero reflectance must be
measured after aperture change
(see Sec. 6.2).
CALIBRATE?
FUNCTION SETUP REF
no
yes
X-Rite
COPYRIGHT 1993
Ver XXXX
READ CAL WHITE
FUNCTION SETUP REF
changeexit
NEW CAL VALUES ?
FUNCTION SETUP REF
yes
no
APERTURE =4.0mm
other
next
SEE SEC. 6.2.
FUNCTION SETUP REF
4.0mm
8.0mm
20mm
L*a*b*
FUNCTION SETUP REF
a* -.99 b* +1.10
L* 94.99
8-8
