User Manual

2
2-13 Calibrating the EX7750 with the ES-1000
8. Check the settings and click Measure.
The Information dialog box appears.
9. Place the ES-1000 spectrometer in the calibration cradle.
When you place the ES-1000 spectrometer in the calibration cradle, white point
calibration is used to calibrate the spectrometer and to compensate for gradual drifts in
the instrument. Make sure that the sample aperture is in full contact with the white tile
on the calibration cradle. If you do not place it correctly in the calibration cradle, the
spectrometer will not return accurate measurements.
10. Click OK.
The EFI Spectrometer Measurements dialog box appears. Directions for measuring the
strips appear in the Status field.
11. For a more accurate measurement, place several sheets of plain white paper beneath
the Measurement Page.
The extra sheets block underlying colors from being read by the instrument.
12. Orient the Measurement Page so that the strips are horizontal and the scan direction
(indicated by the arrows at the beginning of each strip) is left to right.
13. Hold the ES-1000 with its length perpendicular to the scan direction, and place the
sample aperture in the white space at the start of the specified color.