HunterLab ColorFlex EZ Citrus, User Manual

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ColorFlex EZ Citrus Citrus User’s Manual Version 2.0
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Glass Port Insert
This option provides a snap-in port plate (D02-6624-05) with an opening one inch in diameter
that is covered with glass. Also available is a CMR-2587 Port Insert with polycarbonate. The
glass insert protects the inside of the instrument from sample and airborne particles. Remove
the standard port insert by pulling it out of the port insert retainer. Replace it with the glass
port insert. Make sure that the flat portion of the insert is facing outward with the beveled
portion toward the interior of the sensor. Then standardize the instrument with the glass in
place. Check the measurements of the Green and White Tiles before performing any other
diagnostics without the glass cover. Difference measurements using a glass cover will be more
accurate than absolute measurements.
420 nm UV Port Insert
This port insert contains a 420-nm filter (D02-1010-618) to prevent UV illumination from hitting
the sample. This is important for UV-optically brightened samples. Also available are CMR-2591
400 nm and CMR-2592 460 nm UV.
To install, remove the standard port insert by pulling it out of the port insert retainer. Replace it
with the UV port insert. Make sure that the flat portion of the insert is facing outward with the
beveled portion toward the interior of the sensor. Then standardize the instrument with the UV
filter in place.
Sample Cup Set for Translucent Liquids
This set provides a device for holding powders, pellets, granules, and translucent liquids at the
sample port. It includes a 64 mm (2.5 inch) glass sample cup, plastic ring and ceramic disk set,
special port plate insert, and sample cup cover.
The ring and disk set are provided for translucent liquids, transparent liquids, and semi-solids
where the path length is related to color concentration and must be fixed. First, the sample cup
port plate should be installed to hold the sample cup in the proper position. Place the ring
inside the sample cup and fill the cup with sample to a level above the ring. Then place the
ceramic disk on top of the sample (until it rests on top of the ring) with the white portion facing
the sample. Cover with the sample cup cover to exclude external light. Measure the sample
at
the sample port through the glass bottom of the sample cup with the instrument in the port-up
orientation.
Sample Cup Port Plate
This port insert is specially designed to accommodate the 64 mm (2.5 in) glass sample cup and
to hold it in the proper position at the measurement port. Remove the standard port insert by
pulling it out of the port insert retainer. Replace it with the sample cup port insert, then
standardize the instrument.
Figure 93. Sample Cup Port Plate