The Transmittance Chamber For Transmittance Measurement; About Haze Measurements - Konica Minolta CM-3700A Instruction Manual

The transmittance chamber for transmittance measurement

Set the liquid and transmittance specimen to the transmittance
chamber. If you cannot set the specimen because it touches the
Light Trap in the transmittance chamber, remove the Light Trap
before setting the specimen.
How to remove / attach the Light Trap
{ Before removing or attaching the Light Trap, be sure to set the specular component to SCI using the
software.
Removing Light Trap
1.
If the specimen for transmittance
measurements cannot be positioned because
the light trap is in the way, the light trap
can be removed by turning the screw of the
light trap counterclockwise, removing the
screw, and then removing the light trap.
Replacing Light Trap
1.
To replace the light trap, hook the flange of
the light trap into the Spectrophotometer as
shown, inset the screw, and turn the screw
clockwise until snug.

About haze measurements

When the White Calibration Plate is positioned over the reflectance measuring aperture, the measurement geometry
for transmittance measurements becomes di:0°. When the Zero Calibration Box is positioned over the reflectance
measuring aperture, the measurement geometry for transmittance measurements becomes de:0°.
The illumination/observation system does not strictly satisfy the definition of haze (ASTM D 1003).
However, this presents no problem if the values are used as relative values.
When using the optional Color Management Software SpectraMagic™ NX, these two types of transmittance
measurements (di:0°, de:0°) with and without specimen can be taken and haze can be calculated.
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Transmittance chamber
Target Mask
(LAV) and White
Calibration Plate
Sample holder