Ocean Optics DTS - Manual (Page 39)

Collecting Spectra and Manipulating Data
Polychromix DTS TM Near-Infrared Spectrometer 5-3
Operator’s Manual
Document Number 04-91-0201-00 Rev A
5.2.2 Collecting a Transmittance Spectrum
To collect a Transmittance spectrum:
a) Place the sample in the system.
b) Press the button. The background spectrum in the spectral region
of the window will be erased and the vertical axis will be labeled
Transmission % (for an absorbance spectrum, the vertical axis will be
labeled Absorbance).
c) Press the button to obtain the spectrum. The display will look
like Figure 5-3.
NOTE: If you are collecting data on a continuous basis or on a timed
basis, the Stop button can be used to stop the operation.
Figure 5-3: Transmission Spectrum of Polystyrene
The transmission spectrum stored in register 0 is the spectrum that was just
collected. It is indicated with a green light and the letter T, while the
background spectrum collected above is in register 1 and is indicated by the
letter B.