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4.3
Starting the system
Start the iQ-LED software by clicking the 'iQ-LED.exe' or the iQ-LED icon on your desktop. Follow the
iQ-LED software manual to control the CAL3.
NOTE
The iQ-LED devices can operate with high precision only when setup and calibration are
performed correctly.
Consult the iQ-LED software manual for a comprehensive description, and read it carefully.
4.3.1 Spectrometer settings
The iQ-LED software (see iQ-LED software manual) automatically generates the best spectrometer
settings for your lighting conditions after pressing the "auto-detect" button. For special applications, it is
also possible to set the spectrometer settings manually. If you have further questions, please contact
the Image Engineering support team.
4.3.2 iQ-LED calibration
The individual LED lights of the iQ-LED inside the CAL3 depend on many different types and
wavelengths. Some LEDs will change their intensity level and peak wavelength slightly in the first 500-
600 working hours because of a burn-in effect.
The LEDs will also degrade in intensity during their lifetime. To ensure that all measurements,
including the auto-generated and the standard illuminants, are correct, you must perform a spectral
calibration regularly.
You must also consider the degradation of the LED when saving self-defined presets. Suppose you
save a preset with LED channels that uses its maximum intensity. In that case, the possibility exists
that this intensity cannot be reached after the burn-in time or the long-time degradation of the LED. In
this case, you will get a warning message from the iQ-LED control software.
During the first 500-600 working hours, we recommend performing a spectral calibration every 50
operating hours.
After the first 500-600 operating hours, a calibration of every 150 working hours suffices.
Other factors that indicate the need for a spectral calibration include unsatisfactory illuminant
generation or the aberration of the intensity values. In addition, a spectral curve that does not fit with
the predefined standard illuminants of the corresponding preset signals requires calibration.
Image Engineering
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