Metrohm NIRS XDS RapidContent Analyzer - Manual (Page 29)

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2. Do not pack, unpack, or open the sample cell in the sampling chamber. This could spread sample
material into the sampling chamber, which may coat the sample window and affect the analysis.
3. The sample cell holds approximately 250ml (8-1/3oz.) of sample material, when completely filled.
Exact volume of sample depends upon sample shape, packing density, and “settling” over time.
4. It is not necessary to fill the cell to the top, as long as the sample material is deep enough to
present “infinite sample thickness” to the instrument. This is sample-dependent. Some
experimentation may be required to determine minimum sample thickness needed for consistent
analysis.
5. When opening the cell, always be sure the window is DOWN, on a solid surface. If the cell is
opened with the window in any other position, material will spill out.
5.1.1 Loading the sample cell:
Place the sample cell “window-down” on a flat
surface. Follow all safety precautions listed on
the MSDS (Material Safety Data Sheet) before
handling the sample material.
Using the “scoopula” provided in the Accessory
Kit, level the surface of the material, if the cell is
not completely filled.
Wipe any excess material from the sealing
surfaces of the cell, as excess material may not
allow a proper seal with the cover.
Install cover and press firmly into the cell to
engage the gasketed edge.
Wipe any excess sample material from the
outside of the sample cell.
Insert the sample cell onto the Sample Carrier in
the instrument. The sample cell has machined
grooves at each end, which fit onto the legs of
the Sample Carrier.