The protection glass in the limiting aperture of the i1Pro device may become dusty
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after some time. You can remove the protective glass to clean it and the inside of the
limiting aperture:
1. To remove the limiting aperture turn it clockwise until the arrow points to the
"unlocked" position on the i1Pro device.
2. Remove the limiting aperture from the device. Avoid touching the optics.
3. Slide the slider with the protection glass out of the limiting aperture.
4. Clean the protection glass and the inside of the limiting aperture with isopropyl
alcohol on a soft clean cloth.
5. Re-assemble the limiting aperture with the protection glass slider. Make sure
that the slider snaps back into its original position.
6. Mount the limiting aperture back on the device with the arrow pointing at the
"unlocked" position on the i1Pro device.
7. To lock the limiting aperture turn it counter-clockwise until the arrow points to
"locked" position on the i1Pro device.
the
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Keep the white reference ceramic tile clean at all times. You can clean the white
reference ceramic tile with isopropyl alcohol on a soft clean cloth if required.
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Do not touch the diffuser disc of the ambient light measuring head. If necessary,
clean it with compressed air.
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