Metrohm NIRS XDS RapidContent Analyzer - Manual (Page 62)

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After each standard is run, Vision plots the
comparison for each wavelength area as
shown. Tolerances are automatically applied,
and a “Pass” or “Fail” indication is given.
Continue to follow the on-screen prompts for
each standard. Vision requests the 40%,
20%, 10%, and 2% standards.
When Vision has completed the test, the
tabulated results may be printed. They are
also stored in the Diagnostic Database for
later recall.
When the test is complete, click “Close
Window”.
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.
7.2.4 Gain Test
The Gain Adjust feature can be a useful diagnostic tool, though it is not required for normal
operation. Technically, gain is never adjusted on the XDS Rapid Content Analyzer. The name of the
test comes from a capability required with older systems. With XDS, this program reports gain
information for the NIR and visible regions.
To start Gain Adjust, click on Diagnostics,
then Gain Adjust.
The instrument is connected and in
communication for this to function.