Metrohm NIRS XDS SmartProbe Analyzer - Manual (Page 32)

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The reference scan is taken with the Interactance
Reflectance Tip located in the uppermost aperture
on the front of the instrument, as shown.
Click on the reference icon in Vision. Position the
probe fully into the aperture and squeeze the
trigger when instructed.
With the Interactance Reflectance probe barrel
mounted, the operator may sample powders in
shipping containers, barrels and drums.
The 2-meter fiber length is generally sufficient to
permit sampling right on a pallet or cart.
The probe barrel can be rinsed in a cleaning
solution, then rinsed with distilled (or de-ionized)
water to prevent sample carry-over from one
barrel to the next.
This should be written into the cleaning procedure
for the instrument. In the pharmaceutical industry,
a “cleaning validation” may be required.
NOTE: Any dirt or material carried on the probe
barrel may soil or damage the instrument
reference. This should be avoided!