3.1 Preparation of spectrometer configuration file
The spectrometer configuration file is a text file. The name of the file is the spectrometer serial number and the extension is ‘.spec’ (e.g. the spectrometer with serial USB2G8481 will have a ‘USB2G8481.spec’ configuration file). The file must contain 5 rows (other rows are ignored by 3S) with the following information: the ADC converter type, the spectrometer serial number, the four coefficients for wavelength calibration).
The following rows are an example for an USB2000 spectrometer with serial USB2G8481:
Description of the fields:
ADCType:It is the spectrometer type , possible values are: USB2000, HR2000, HR4000
SerialNumber: It is the serial number of your spectrometer (this number can be found in the OceanOptics documentation and it is printed on the spectrometer case)
WLFirst:First coefficient of wl calibration 3rd degree polynomial (provided by OceanOptics or home made with a proper calibration source)
WLSecond:Second coefficient of wl calibration
WLThird:Third coefficient of wl calibration
WLIntercept:Intercept coefficient of wl calibration
Copy your specification into an existing file:
Three example configuration files are copied into the installation directory: HR2A0706.spec, HR4C1078.spec, USB2G8481.spec (for use with an HR2000, HR4000 and USB2000 spectrometers, respectively). In order to enter your specific values, copy the one with your spectrometer type and insert only your own wavelength coefficients.
3.2 Running 3S
Attach spectrometer to the computer and run 3S. Execute the 3S and you will be prompted to select the spectrometer type (e.g. USB2000) and the AD converter type (e.g.
USB2000), then select the serial number of the connected spectrometer. This operation is done once at the first use.
Afterwards the main GUI appears. Click on the Setup button. Select the spectrometer type (e.g. USB2000) and select the proper spectrometer file (modify
the one provided with 3S according to your own spectrometer specification, see above). Type ‘none’ in the spectrometer unit serial field if you want to remove a
spectrometer. Select your data directory (files will be stored there).
Fill the local host field with the computer name only if more than one spectrometer will be attached to the computer (see 4 Connecting two spectrometers to the same computer below)