Ocean Optics CHEM2000 - Manual (Page 21)

2: Using OOIChem Software
2. Supply a line from Pin 8 of the J2 Accessory Connector to your triggering device. (See figure for
pin location.)
3. Set your acquisition parameters in the software.
4. Select Spectrometer | Spectrometer Configuration from the menu and choose External
Software Trigger.
5. Once you select External Software Trigger, it will appear on your computer that your
spectrometer is unresponsive. Instead, it is waiting for the trigger. Activate your triggering
device.
Graph and Chart Display Mode
If you choose Spectrum Only, spectra from one real-time spectrometer channel and up to 8 overlays can
be displayed in the graph area. If you choose Spectrum & Kinetics, spectra from one real-time
spectrometer channel and up to 8 overlays can be displayed in the in the top half of the graph area. A
kinetics chart monitoring values from up to 4 wavelengths and 2 of their arithmetic calculations can be
displayed in the in the bottom half of the graph area, if the Chart Active function is enabled.
Flash Delay
The value entered here sets the delay, in milliseconds, between strobe signals sent out of the spectrometer.
This function allows you to enable or disable the triggering of external strobes through the spectrometer.
You would only enter a value in this box if you were operating an external strobe source. The Maxwell
system does not include a strobe light source.
Color Temperature
This box allows you to enter the color temperature (in Kelvin) of your light source. In order to calculate
relative irradiance, the reference spectrum must be made in Scope Mode with a blackbody light source of
known color temperature. This data is necessary for the software to complete calculations for relative
irradiance measurements. Maxwell users must purchase additional hardware to make relative irradiance
measurements.
Kinetics Configuration
Select Spectrometer | Kinetics Configuration from the menu to configure and establish the parameters
for a kinetics experiment. In the Kinetics Configuration dialog box, you can collect spectral data as a
function of time, from up to 4 single wavelengths and up to two mathematical combinations of these
wavelengths.
Data from a kinetics experiment will not be displayed in the graph unless you choose Spectrometer |
Spectrometer Configuration from the menu and select Spectrum & Kinetics next to Graph and chart
display mode. This way, not only will your kinetics experiment be displayed in the bottom half of the
graph area, you will also still see real-time spectra in the top half of the graph area.
105-00000-CHM-02-0405 PRELIMINARY DRAFT 15