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Spectro LFP qb - Operating Manual
4.6 Changing the measuring aperture
The Spectro LFP qb spectral unit is equipped with a selectable measur-
ing aperture. The switching occurs automatically by the software driving
the instrument (manual switching is supported only in spot mode when
spectral unit is used detached from the platform).
The aperture size is valid for reflective and transmissive measurements.
The selected aperture is indicated on the display.
The small aperture corresponds to 2mm aperture, the wide aperture
to 8mm.
The wide aperture should be used with structured materials or if the
print resolution is smaller than 120 dpi.
When using the wide aperture, make sure that your target to be mea-
sured has patches equal or larger than 10mm.
The recommended patch size is as follows:
2 mm aperture: 5 mm or larger
6 mm aperture: 10 mm or larger
8 mm aperture: 12 mm or larger
