You can use this light meter to perform a very accurate measure of your color decoder accuracy.
I have created and uploaded a zipped Excel spreadsheet for this purpose.
1. Use the Gray field (not the White field) on Avia and measure the light output and enter that figure in the red cell labeled "Measured Reference White."
2. Measure the light output from each of the RGBCYM color fields provided on Avia and enter each of those figures in the red fields labeled "Measured Y."
The results will appear numerically and on the provided chart. Good color decoding should show no more than +-5% error for all colors.
Ensure that the light meter is fixed and stable. A tripod mount is desirable for this purpose.
Use the projector's Color control to raise or lower all values. Some projectors have dedicated color decoding controls for RGB. Ideally, the projector will have a CMS that allows you to adjust the Value of RGBCYM independently.
Color Decoding.zip 4.306640625k . file