Uv Cut Filter And Polarization Filter - Barbieri Spectro LFP qb Operating Manual

Spectro LFP qb - Operating Manual

4.8 UV cut filter and Polarization filter

The UV cut filter is already included into the instrument and is activated
by selecting the M2 measurement condition.
The optionally available polarization filter for reflection measurments
can be exchanged by simply removing with your finger first the reference
white on the spectral unit and then the aperture ring and replacing it with
the polarization filter cover. The aperture ring is holding by a magnet:
The M2 measurement condition (UV cut filter) is used to eliminate the
effect of optical brighteners. Measurements correspond to measure-
ment condition M2 of ISO 13655:2017
The Polarization filter is used when measuring shiny surfaces. Mea-
surements correspond to measurement condition M3 of ISO 13655:2017

When the polarization filter is mounted, measuring
speed is slower.
Note: In case the chart autopositioning by the sensing
unit should fail, manual positioning must be used!
31