Metrohm NIRS XDS MasterLab Analyzer - Manual (Page 91)

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When Performance Test is finished, a message box is displayed
to indicate test completion and status. All measured values are
compared with acceptance criteria stored in Vision. If all results
meet acceptance criteria, the test is successful and this dialog
box is displayed.
Click “Print Report” for a hard copy of results. Before clicking
“Close Report”, the user is directed to the tabular display.
To view the tabular display of results, place cursor over the tabular display and double-click twice.
Vision enlarges the tabular portion of the screen. Now click on the OpQual tab, near the bottom of
the screen. Noise summary results are shown.
Noise Summary displayed using the OpQual tab.
The first OpQual tab brings up the display shown. This shows results of the Noise Test for the two
applicable wavelength regions. These regions are:
• 850-1100nm
• 1100-1600nm
For each region, results are given for
• Peak-to-Peak Noise (P-P)
• Root-Mean-Square Noise (RMS)
• Bias (A measure of baseline energy changes)
Each of these parameters is described in more detail in the Diagnostics Section of the Vision Manual.
If the test is reported as “Passed” the user may proceed with sample analysis.
The XDS instrument contains internal wavelength reference materials, which are used as a means to
maintain monochromator wavelength measurement. These internal wavelength materials are