Ocean Optics OOIBase32 - Manual (Page 62)

7: Spectrometer Menu Functions
Option Description
SAD500 Baud Rate
Specifies the communication speed at which the SAD500 A/D converter
operates.
This option is only available if you select Serial (RS-232) A/D as the A/D
Converter Type
.
SAD500 Pixel Resolution
Specifies the pixel resolution of the SAD500 A/D converter.
Enter a value of 1-500 in this field. It specifies that the SAD500 will
transmit every nth pixel of the spectrometer to the PC. You will need to
determine the appropriate pixel resolution through experimentation.
Higher pixel resolution values result in increased communication speed,
as the SAD500 transmits fewer pixels to the PC.
Note that the transfer of one complete spectra requires approximately 0.4
seconds when communicating at 115,200 baud. If you need your
information faster than this, increase the pixel resolution or enable data
compression.
This option is only available you select if Serial (RS-232) A/D as the A/D
Converter Type
.
Compress SAD500 Data
Specifies whether you have enabled data compression. The data
compression feature maximizes the amount of data transferred over the
serial connection.
This option is only available if you select Serial (RS-232) A/D as the A/D
Converter Type
.
USB Serial Number
Specifies the serial number of the USB device that OOIBase32 will use.
This option is only available when using a USB-based spectrometer or
A/D interface.
Reference Monitoring Tab
The Reference Monitoring tab of the Spectrometer Configuration dialog box allows you to monitor a
reference for variations in spectral intensity based on light source and system drift.
Over time, the detected light from a source fluctuates or drifts. There are two types of drift: Spectrally
uniform and spectrally non-uniform. The drift associated with a tungsten lamp is often spectrally
uniform, but the drift associated with a deuterium lamp is not.
For extended experiments, you will achieve optimal results if you take frequent reference spectra. If this
is not possible, however, you can choose to monitor your light source and instruct OOIBase32 to correct
for any drift that might occur. OOIBase32 can perform a traditional, dual-beam type of reference
monitoring with a two-channel system (using Wavelength-by-Wavelength reference monitoring). If you
have a single-channel system, however, OOIBase32 can still correct for drift by offering two kinds of
reference monitoring: Integrated Intensity and Single Point.
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