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Transmittance measurement 100% calibration can be performed
with nothing set in the transmittance specimen chamber or using
the cell (option) and distilled water (or pure water).
Memo
•
When measuring a liquid sample using the cell (option), perform
100% calibration using the cell and distilled water (or pure water).
• When using the optional SpectraMagic NX, set the measurement
method to transmittance in advance.
• Install the target mask for LAV measurement and the white
calibration plate onto the instrument.
For fluorescence measurement that does not require strict accuracy (fluorescence calibration is not performed),
perform measurement under UV full light source.
When the below setup is completed, execute 100% calibration from the software.
Measuring a Specimen Without Using a Plastic Cell or Glass Cell
Procedure
1 Open the transmittance specimen chamber cover.
2 Empty the space between the illumination window
and receptor window. (Perform without a sample, cell,
transmittance zero calibration plate, or other item
installed.)
Memo
• There will be no effect on the measurement results if the optional
transmittance specimen holder CM-A96 is installed. However in
this case, it is necessary to perform measurement with the zero
calibration transmittance sample holder installed.
3 Close the transmittance specimen chamber cover.
Measuring a Specimen Using a Plastic Cell or Glass Cell and Distilled Water (or Pure Water)
Procedure
1 Open the transmittance specimen chamber cover.
2 Set a cell that is around 2/3 full of distilled water (or
pure water) onto the transmittance specimen holder on
the illumination window side.
• Although the transmittance specimen holder can be
installed on either the illumination window side or receptor
window side, it should be installed on the illumination
window side for ordinary use. In this case, the illumination/
viewing system uses diffuse illumination and 0° viewing.
• The cell used for calibration must have the same optical path
length as the cell that will be used for measurement.
• Set the cell in place with the transparent surfaces facing
toward the receptor window and illumination window.
3 Close the transmittance specimen chamber cover.
Transmittance Measurement 100% Calibration
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Procedure
Light
Plastic cell
or glass cell
Receptor
window
Illumination
window
