Metrohm NIRS XDS MasterLab Analyzer - Manual (Page 39)

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1. Remove the black covers from the
adjustment post on the instrument, and
the adjustment screw packed with the
standards tray.
2. Thread the adjustment screw onto the
adjustment post.
Tighten only slightly, until it cannot be
turned easily. You should feel slight
contact as the screw reaches its full end
point. You may even observe the
machined end of the adjustment screw
as it nears the ball-shaped end of the
Do not force the adjustment screw
beyond this initial contact.
3. Note the setting on the face of the post,
so the unit can be returned to this
setting.
Note both the rotational position of the
adjustment knob (“0” in this photo) and
the vertical position on the post (“12” in
this photo).
4. Using the 1/16” Allen wrench provided
in the accessory kit, loosen the locking
screw on the left side of the assembly.
Do not remove the locking screw. One
turn or less is enough to permit free
motion of the transmission detector.