Metrohm NIRS XDS MasterLab Analyzer - Manual (Page 115)

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A final spectrum (green
when plotted on-screen) is
plotted to verify that the
corrected spectrum
produces the same results
as the Certified 80%
Reflectance Standard.
Click “Close Report” to
continue. The correction is
automatically downloaded,
and is saved in the
Diagnostic Data Base.
The correction will be
applied in real time to all
spectra taken – in the “Use
Iris” mode --with a DCM
where “Reference
Standardization” is
checked.
If the photometric scale of the instrument has drifted, or if
the instrument is not fully warmed up, the user may see
this message.
Photometric Test is a good check of Reference
Standardization. If Reference Standardization needs to be
re-run, this message will be shown. Re-run Reference
Standardization. If required, run Photometric Test again to
verify that the photometric scale of the instrument is now
reading properly.
When finished, remove the Iris Adapter, and return to the “Use Tray” mode.
In the event that Vision does not find a
Reference Standardization where it is
needed, it will prompt for a new one
upon connection as shown. When a
new Reference Standardization is
performed, Vision asks for a new
Instrument Calibration as well.
NOTE: Perform Reference Standardization immediately after changing the spot
size, to have the proper reference correction loaded in the instrument.