Metrohm NIRS Analyzer PRO - Manual (Page 12)

10 ▪▪▪▪▪▪▪
Block Diagram
The internal light paths of the Analyzer PRO are
shown.
The sample is illuminated with white light. The
resulting signal is sent back (through the optical
switch) to the Diode Array Spectrometer for
analysis.
Both dark and light reference signals are used to
set the scale of absorbance. Vision uses the
resulting information to produce sample spectra.
The formula (shown only for information) is as
follows: