Metrohm NIRS XDS RapidLiquid Analyzer - Manual (Page 37)

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7
Instrument Diagnostics
Vision provides diagnostics for instrument setup, which must be performed before use of the
instrument for analysis. Following these diagnostics, another set of diagnostics is provided to
evaluate the ongoing performance of the instrument. These are explained in the sections that follow.
Vision provides diagnostics for instrument setup, which must be performed before use of the
instrument for analysis. Following these diagnostics, another set of diagnostics is provided to
evaluate the ongoing performance of the instrument. These are explained in the sections that follow.
7.1 Setup Diagnostics
Before use of the XDS Analyzer, some steps must be
performed using Vision Software.
The “Options” for a given Project may be set. To
reach this menu, click on Configure, Options. The
menu shown at right is the default set of selections.
A brief explanation follows:
Instrument must stabilize before data
acquisition:
This prevents spectral acquisition if the instrument is
cold.
Performance Test must pass before data
acquisition:
This prevents the user from taking data on a non-
functional instrument.
Run performance test after wavelength
linearization:
Forces user to run test sequentially. This is not
necessary with XDS.
Reference Standardization:
Not used with the XDS Rapid Liquid Analyzer.
Use Auto-Linearization:
Maintains correct wavelength registration automatically, using internal wavelength materials to keep
instrument in precise adjustment over time.
Blank Correction:
Used to create a correct transmission reference, when using cuvette spacers and other devices. Takes
a scan of the sample chamber and the reference chamber, then applies a correction factor. This is
explained in a later section. Recommended for Calibration Transfer.
Master Standardization:
This method is not used with XDS. Do not select.