Metrohm NIRS XDS Process Analyzer – MicroBundle User Manual

Page 59

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57

2.

The menu shown at right is the 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.

Use Auto-Linearization:

Maintains correct wavelength registration
automatically, using internal wavelength
materials to keep instrument in precise
adjustment over time.

Reference Standardization:

Used to create a virtual 100% reflectance reference, using a traceable photometric standard.
This is explained in the next section. Required for Calibration Transfer in Reflectance.

Master Standardization:

This method is not used with XDS. Do not select.

Use Instrument Calibration (XDS only)

This is a method to adjust the instrument wavelength profile to an external, traceable
wavelength standard. It is checked as a default for XDS. Required for Calibration Transfer.

Use Window Correction:

Select this when using XDS Process instrument with either Transmission Pair, or Interactance
Immersion probes. This option should not be used with Interactance Reflectance.

When calibration or library transfer (between instruments) is anticipated, be sure that Reference
Standardization and Instrument Calibration are selected, BEFORE creation of a DCM. These features
assure best method transfer between similar instruments.

Vision confirms the instrument configuration upon the first test to be saved to the Diagnostic
Database.

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