BUCHI NIRWare - Manual (Page 319)

NIRWare 1.5 Software Manual NIRWare Operator
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Selecting an Application which is in the Lifecycle State Created the following message appears.
7.5. Deviating reference spectrum
7.5.1. Introduction
Spectral references are used to compensate for signal drift and other unwanted effects that could
compromise the measured spectra. This is best done by using the ‘External Reference’, because it is
measured at exactly the same position as the sample. NIRWare now offers an improved automatic test of
the measured spectrum. This test compares the currently measured reference spectrum against the
previous reference spectrum for the respective application.
7.5.2. Description
The test procedure generates a value for spectral deviation, expressed as relative number (%). If this
value is below the acceptance limit, the new spectrum is automatically accepted as current reference.
Otherwise, the user will see the following dialog: