Ocean Optics Jaz Absolute Irradiance - Manual (Page 20)

4: Operation
14 JAZ-A-IRRAD-02-201011
Optimizing Measurements
For proper measurements, it is important to adapt Jaz to your light source and take a dark measurement
before saving any data.
► Procedure
To optimize your absolute irradiance measurements,
1. Make sure that the Jaz module contains the SD card with the absolute irradiance configuration
and calibration files and Jaz has been restarted so that the following screen is displayed:
2. Point the probe at your sample (LED or other emissive light source) and press the ▲ key for the
Adapt to Light selection. This starts the optimization procedure to adjust the Jaz instrument for
the appropriate lighting conditions. Once Jaz has finished (within a few seconds), the following
screen appears:
3. Take a dark measurement. To do this, cover the probe and press the # key for the Dark selection.
Once Jaz has finished, the following screen appears:
Jaz has now been optimized to take absolute irradiance measurements.