Ocean Optics OOIIrrad-C - Manual (Page 63)

6: Taking Measurements
Relative Irradiance Measurements
► Procedure
To take a relative irradiance measurement using the OOIIrrad-C application,
1. Set the Spectral Graph Mode to Relative Irradiance.
2. Flip the
Scan switch to ON. It is recommended to store new dark scan frequently.
3. Verify your calibration data by scanning the calibration lamp once and determining that the
resulting spectrum matches a normalized black body curve of the lamp’s known color
temperature.
Color Measurements
Emissive color measurements require a spectrometer, which has been calibrated to take irradiance
readings (either relative or absolute). When Spectral Graph Mode (on the OOIColor/OOIIrrad screen)
is set to uW/cm^2/nm, the results of an absolute irradiance scan is used. For all other modes (Scope,
Reflectance, Relative Irradiance), the relative irradiance results are used.
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