2 You should do this at least once a day, but there's little benefit from doing this more than twice a day.
3 Absolute White
4 Last set:
5 Absolute white has not been set.
6 Measure the white Calibration Target mached to your Colortron(TM) until you hear the "measurement done" sound.
7 Absolute Black (Zero Reflectance)
8 Last set:
9 Absolute black has not been set.
10 Measure the opening on your Black Trap until you hear the "measurement done" sound.
11 COM1
12 COM2
13 Set Paper White
14 Measure a sample of the background material (probably white paper) with your Colortron(TM) until you hear the "measurement done" sound.
15 You should do this every time you measure on a new paper or other background material.
16 Set Film/White Light
17 Measure a sample of the background (clear film and the lighting source) with your Colortron until you hear the "measurement done" sound.
18 You should do this every time you measure on a new film, emulsion, or backlighting source.
19 Measure each of the patches provided in the Colortron(TM) Color Calibration Target in any order. Do not measure the "Paper'' target.
20 White
21 Cyan
22 Gray
23 Yellow
24 Black
25 Magenta
26 Your Colortron(TM) passed diagnostics. No problems have been detected in the optics, electronics, or alignment of the instrument.
27 Your Colortron(TM) did not pass diagnostics. Please try a second time.\n\nFollow the displayed instructions to remeasure the Absolute Black and then the Absolute White reference before clicking Diagnostics.
28 \n\nVerify that the serial numbers agree between the Target and your Colortron. Be careful to center the measurement aperture in the color patches.
29 \n\nSee the manual for more information about diagnostics and contacting Technical Support if your Colortron fails a second time.