Metrohm NIRS XDS RapidLiquid Analyzer - Manual (Page 29)

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To access the outer fittings, gently lift the black cover and peel it
back. The ports are exposed as shown. Save the cover as a light-
block, in the event the ports are not used in later work. It should
be re-installed to prevent light seepage through the fittings.
When using flowable cuvettes, the user should consider flow
dynamics in the cell, along with safe connection of the ports to
the cell inlet and outlet. Avoid spills and “blowouts” in the
instrument.
5.5 Cuvette Lifting Handle
The Rapid Liquid Analyzer has a lifting handle to expedite
removal of the cuvette from the sampling area. The photo
at the right shows the handle in use.
Always use the lifting handle to remove cuvettes. DO NOT
grasp the cap of the cuvette to lift it out. This may break
the neck of the cuvette, and could expose the user to
hazardous materials.
5.6 Cuvette Spacers
The Rapid Liquid Analyzer comes with a set of spacers for
use with various size cuvettes. (The cuvette size is stamped
on top of the spacer.)The spacers are designed to thread
into a #10-32 tapped hole inside the sample drawer, to
keep the spacer in the proper position.
Insert the spacer, then turn the knurled knob to thread it
into the tapped hole in the sample drawer. Insert the
cuvette carefully to avoid breakage. The drawer front is
spring-loaded to permit easy insertion of the cuvette, and
to provide secure positioning when in place.
5.7
Temperature Control Information
Setup of the Sample Temperature Control is discussed in section 7.3 of this manual. The controller is
a heat-only control, and does not cool the sample in any way. Therefore, if samples are not
presented to the instrument in a consistent manner, there may be some spectral effect from the
elevated temperature. This spectral effect (due to temperature) may result in prediction errors.
The user should bear these items in mind:
• Always scan samples at a consistent temperature to avoid spectral variations due to
temperature differences.
• If scanning at room temperature, be sure the samples have all equilibrated to that
temperature.