Thermonicolet Omnic Software User's Guide 6.1 (PDF) - Charles E ...

Specifying the spectral range
Use the parameters in the Spectral Range box to specify the frequency range
(X-axis limits in wavenumbers) of the collected data to be saved on the hard disk.
Data outside the specified range will not be saved. Enter the upper limit of the range
in the text box on the left and the lower limit in the text box on the right. If you
don’t enter a limit, the default value shown in the box for that limit will be used. The
widest limits recommended for the current configuration of the spectrometer are
shown to the right of Recommended Max. These limits depend on which source,
beamsplitter and detector are installed.
Use a spectral range that is appropriate for the detector. Data that fall outside the
range will be lost when the spectrum is saved. (If you are saving interferograms,
you can recover the lost data.)
To save disk space, set the range to include only the regions important to your
experiment.
Quality checks
The Quality tab contains parameters for specifying the spectral quality
characteristics that you want checked when you collect spectra. OMNIC offers the
four categories of spectral quality checks described below.
The spectrum checks appear when you select the Spectrum (or All) option.
These checks examine the quality of collected sample spectra. If you want any of
these checks performed, first turn on Spectrum Checks and then turn on the checks
you want performed. (Use Spectral Quality Checks must be on for these items to be
available.) Set the sensitivity for each selected check by using the Sensitivity scroll
bar. A higher sensitivity value makes it more likely that a problem will be detected.
OMNIC User’s Guide 127