Metrohm NIRS XDS RapidLiquid Analyzer - Manual (Page 50)

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page titled “Instrument Calibration Verification”. These peaks are used to set the “Instrument
Wavelength Profile,” and one peak is used for bandwidth calculation.
The wavelengths used for the instrument wavelength profile are well-defined, stable peaks in the
wavelength standard. These are the same peaks used during Instrument Calibration. Wavelength
Certification is a verification that the peaks are in correct positions, and that the peak positions are
consistent over time. Note that both tests use the wavelength standard at the sample plane, where
actual sample measurement is done.
This is a “typical” printout. It will be slightly different for each instrument.
Note that Bandwidth is only computed on the XC-1300
WST3Wxxx “Trans Cal Std”, which is the same standard used
in Instrument Calibration. (Shown on left.) The printout above
is for WST3W011, and will be similar for other serialized XC-
1300 wavelength standards.
Bandwidth is not calibrated or measured when using “Poly-
Didym”. (Shown on right.) That standard also does not
provide the tighter FOSS-defined peak readouts, as set in
Instrument Calibration. It is included in XC-1310 and XC-1320
as an independent check from the XC-1300 standard, for
those who desire a separate wavelength standard from that
used in Instrument Calibration.
When Wavelength Certification has passed, the user should click the cursor on the tabular display, go
to the File menu, and click Print to keep a copy of the report. It is saved in the Diagnostic Database