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Chapter 4
Operation
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it is possible to use a broadband source such as tungsten for the alignment. If this is the
case, use a wavelength setting of 0.0 nm for alignment purposes.
Assumptions
The following procedure assumes that
1. You have already set up your system in accordance with the instructions in
Chapter 3.
2. You have read the previous sections of this chapter.
3. You are familiar with the application software.
4. The system is air-cooled.
5. The system is being operated in spectroscopy mode.
6. An entrance slit shutter is not being controlled by the ST-133A.
Cabling
If the system cables haven’t as yet been installed, make sure that the ST-133A and the host
computer are turned off and then follow the cabling instructions on page 38. Then, return to
this page.
Getting Started
1. Set the spectrometer entrance slit width to minimum (10 µm if possible).
2. Turn on the controller power.
Note: A detector overload alarm may sound briefly and then stop. This is normal
and is not a cause for concern. However, if the alarm sounds continuously, even with
no light entering the detector, something is wrong. Turn off the power and contact
the factory for guidance.
3. Turn on the computer power.
4. Start the application software.
Setting the Parameters
Note: The following procedure is based on WinSpec/32: you will need to modify it if
you are using a different application. Basic familiarity with the WinSpec/32 software is
assumed. If this is not the case, you may want to review the software manual or have it
available while performing this procedure.
Set the software parameters as follows:
Environment dialog (Setup|Environment): Verify that the DMA Buffer
size is 8 Mbytes (min.). Large arrays may require a larger buffer size. If you
change the buffer size, you will have to reboot the computer for this
memory allocation to be activated, and then restart WinSpec.
Controller|Camera tab page (Setup|Hardware): Controller and Detector
parameters should be set automatically to the proper values for your system.
However, you can click on the Load Defaults From Controller button on
this tab page to load the default settings.