X-Rite i1 PRO Manual De Usuario página 17

Measurement conditions
The i1Pro measurement device supports multiple measurement conditions. Depending
on how you wish to scan a target for UV you need to measure each row of your test chart
either once or twice. In a single pass scan measurement and during the first pass of the
dual pass scan measurement, the patches are illuminated with the tungsten filament
lamp in the i1Pro device. If a second pass is required the patches are illuminated with a
UV LED during the measurement.
Single Pass Measurement is required for measurement condition
Dual Pass Measurement is required for the following measurement conditions:
The Status Indicators on the i1Pro device guides you through the measurement
process.
Dual pass scan measurements require the aluminum ruler which includes the
reference required for the positioning sensor.
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