Ocean Optics DTS - Manual (Page 22)

Chapter 3
3-2 Polychromix DTS TM Near-Infrared Spectrometer
Operator’s Manual
Document Number 04-91-0201-00 Rev A
b) Turn on the source and allow it to warm up for a few minutes.
c) Verify that the button is depressed and press the
button. A background scan of air will be collected (Figure 3-2).
Figure 3-2: Background Spectrum of Air
NOTE: If the detector is saturated, a warning will be presented
prompting the user to adjust the level using the light meter mode
(Section 5.5).
If you are using a cuvette holder:
a) Place a sample (e.g. 1 cm
2
cuvette with water or a piece of polystyrene) in
the light path.
b) Press the (absorbance) button and then press the
button. The spectrum will be collected and displayed (Figure 3-3). The
shape of the spectrum will depend on the wavelength range of the
spectrometer and the sample that is employed. At this juncture, the
critical point is that the spectrum is different than the background
spectrum collected above.