Metrohm NIRS XDS RapidContent Analyzer - Manual (Page 31)

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5.2 Use of the Sample Transport Mechanism
The sample transport uses a small motor and lead
screw to position the cell over the sampling window
of the module, as shown in the photo at right.
In normal operation, the mechanism will move the
cell to one of 8 sample positions, for maximum
sampling area exposure. This is completely under
control of the instrument, and requires no input from
the user.
The information to activate this feature is taken from the Data Collection method (DCM) when set up
by the user.
First, for “Cell” the user should select “Moving”. This tells the software that a large cell will be used,
and that it should be moved to positions across the length of the sample cell window.
Next, the number of “Scans” will influence the motion of the cell, though this motion is transparent
to the user. A large number of scans will cause the cell to be run back and forth several times, to
fulfill the number of sample scans requested in the DCM. Again, the sample motion is transparent to
the user, and is not a user selection.
The sample transport mechanism is quite rugged, and requires no service by the user. Please
observe these cautions:
• Never attempt to move the mechanism manually. This will cause a “Limit Switch Error” in
Vision. The user must then disconnect, cycle power, and re-connect to the instrument to reset
the mechanism.
• Do not attempt to clean or lubricate the mechanism. The traversing nut is self-lubricating and