Metrohm NIRS XDS MasterLab Analyzer - Manual (Page 46)

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When using the Iris Adapter, Vision provides a
command to move the sample carriage to a neutral
position, as shown at right.
First, remove the vial, tablet, or standards tray. (This
can be difficult once the sample carriage has moved to
the iris position.)
Click on the menu item “Send Tray to Iris Position”.
Vision requests that the Iris Adaptor be
removed, if it is in place.
This prevents a collision between the
sample carriage and any other items in
the path.
Remove the transmission reference to make
room for the Iris Adapter. Turn the thumbscrew
counter-clockwise (CCW). 4 to 5 turns are
sufficient – do not loosen any more, or the
captive screw may come out.
Lift the transmission reference upward and store
it in a safe, clean place. Do not allow it to
become dirty or damaged, as this reference is
critical to instrument repeatability in transmission.
This should be done before the sample carriage is
moved, as it can be difficult to reach afterward.
The aperture plate may need to be removed or
replaced, depending upon the type of analysis to be
done.
If the sample carriage is far enough “back, this can
be performed. Otherwise, move the aperture plate
when the sample carriage has been positioned for
the Iris Adapter.