13-10 ColorFlex 07/02
Calculations for the citrus scales are given in Appendix A.
OJ4 Orange Juice Standard
This option provides an uncalibrated plastic OJ4 standard for creating a new instrument hitch or
checking the current instrument hitch to the United States Department of Agriculture’s (USDA)
standards. This standard is also available with USDA calibration for an additional fee. When a citrus
scale is to be used, read the OJ4 standard and hitch the instrument to the XYZ values given on the
standard label. Save the standard and recall it to rehitch the instrument whenever citrus scales are to be
measured.
The standard is intended for use with the orange juice tube holder described above.
Set of 6 Orange Juice Standards
This option provides a set of six uncalibrated OJ standards
(OJ1 through OJ6). They may be USDA calibrated for an
additional fee.
Tomato Option (45°/0° instruments only)
This option provides seven additional indices that may be calculated and displayed in Universal’s color
data displays: Tomato Color Score, Tomato Juice, Tomato Paste, Tomato Sauce, Tomato Catsup, and
Tomato A/B Ratio. Install the indices after installation of Universal by copying the CMRINDEX.CDX
file contained on the option diskette into your Universal installation directory (C:\UNIVERSE by
default). The tomato scales will then be available for use through Universal whenever the ColorFlex is
the active instrument.
A calibrated tomato tile (as described below) is included with this option. Calculations for the tomato
scales are given in Appendix A.
Tomato Red Tile
This option provides an uncalibrated tomato red porcelain enamel on steel instrument tile. You may
assign tomato score values to the tile based on known USDA tomato color standards in order to hitch the
instrument to those soft standards. Alternately, you may purchase the TILE-CAL-TRACEABLE option
from HunterLab to have tomato score and color values assigned to the tile at the factory. When a tomato
score is to be used, read the tomato tile as a standard and hitch the instrument to the L, a, b values given
on the standard label. Save the standard and recall it to rehitch the instrument whenever tomato scores
are to be measured.
