Metrohm NIRS XDS Process Analyzer – MicroBundle User Manual
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Wavelength Linearization is performed in two sections,
each of which takes about 15 seconds.
Following Wavelength Linearization, the user is asked to
select a standard file. This is provided on the diskette in
the Certified Standard box. It may be manually copied on
the computer in the Vision directory, as shown.
Select this file and click on “Open”.
Vision prompts the user to position the WSR103xx
standard on the probe.
When prompted, position the WSR103xx Wavelength
Standard Cell on the probe as shown. The label should
always be in a consistent position. In this case, the bottom
of the label is parallel with the holder.
Click “OK” to continue.
This test takes about 45 seconds.
The wavelength response for each defined peak is adjusted, to assure precise wavelength registration
between instruments. At the same time, bandwidth (bandpass) is measured, and is iteratively
adjusted to an optimum value for the peaks measured. This is performed to assure good agreement
from instrument to instrument, should multiple instruments be used for analysis of similar products.
This calibration is needed to insure calibration transfer, as peak shape may be slightly affected by
fiber length.