Measurement Considerations

Minimum Patch Size

Implementation between spectrometers varies and depending on actual usage, the minimum patch size may be different. For instance, minimum patch size for i1Pro with patch recognition is 10x10 mm. The same i1Pro when mounted on an i1iO automated scanning table patch size can be reduced to 6x7 mm. Should users try to use an i1Pro to measure patch sizes smaller than the required 10x10 mm, they are bound to experience  inconsistent or incorrect measurements.

Distance between instrument and measuring surface
Distance between the measurement head of the instrument and the paper surface is crucial. Operate away from the optimal distance can lead to huge color deviations in measurement results. For i1Pro, the gap which controls by the manual positioning gadget or the scanning ruler, of approximately 40 to 50 um, serves as the allowable maximum distance. Third party rulers sold for the i1Pro can also be a source of errors, as many of them are not within the specification required for obtaining acceptable measurement results.