5 use of the sample transport mechanism, Use of the sample transport mechanism – Metrohm NIRS XDS MultiVial Analyzer User Manual

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35

5.5

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.

To insert the sample cell “boat” into the MultiVial,
note the round guides on the sample carrier. They
are shown in this photo – the pencil points to the
one on the right.

The sample cell must be positioned over these pins
and gently pressed down to the stops. If crooked, the
cell cannot be positioned correctly. Care must be
used in placing the cell on the pins.

The Select Tray Dialog box must have the correct
selection made. Click on “Use Boat” as shown.

This selection de-activates the “y-axis” motion,
and allows the correct range of “x-axis” motion.

DO NOT OPERATE OR TROUBLESHOOT
WITH THE LID OPEN. SUNLIGHT MAY
CONFUSE THE OPTICAL INTERRUPTERS
USED TO POSITION THE SAMPLE CARRIAGE.
THIS MAY CAUSE AN “X-Y POSITIONING
ERROR” TO BE REPORTED.

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