CALIBRATION
iKon-L SECTION 8
Page 145
To change the x-axis units of an active data window which you have previously calibrated, select the Change
Units option on the Calibrate Menu. The Change X-Calibration of Acquisition dialog box will appear on your
screen, e.g.:
• From the X-Axis Label drop-down list choose whether you want the x-axis to represent Wavelength,
Pixel Number or Raman Shift.
• From the Units drop-down list, choose the units that you want to use for your recalibration.
The available combinations depend on how the data were previously calibrated. If for instance, the data were
previously calibrated in Wavelength and Nanometers the available combinations for recalibration are as follows:
Wavelength
nm, µm, cm-1, eV
Raman Shift
cm-1
Pixel Number
-
The table below shows the available combinations for all modes:
X-Axis Label Units Can Change to
0
User Type -
1 Pixel Number (see NOTE 1. below)
-
2
Wavelength nm, µm, cm-1, eV 1, 2, 3
3
Raman Shift cm-1 1, 2
4
Position µm, mm, cm, µi(nches), in(ches) 1, 4
5
Time ms, s 1, 5
6
Sample - 1
NOTES:
1. Changing from pixel number actually constitutes a new calibration and can only be performed
by using Manual X-Calibration or X-Calibration by Spectrograph.
2. If you choose to recalibrate a data window in pixels, you will not be able to perform any further
recalibrations on that window using the Change X-Calibration of Acquisition dialog box. If you
save (under its previous filename) data that has been recalibrated in pixels, you will lose any
previously saved calibration.
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