Jadak Photo Research SpectraScan PR-7 Series, User Manual

Page: 72 / 142

Chapter 5
– Setup Menu
68
8.
The Custom Spectral Calibration is complete.
9.
To use these new factors for subsequent measurements, make sure that Custom Spectral Correction is
Enabled and that One Time Calibration is Disabled . The settings will rest after each measurement.
10.
To restore the Target instrument so that it uses only the factory calibration factors, make sure
Custom Spectral Correction is set to Disabled .
A
S A
.TXT F
ILE
Data from other instruments can be used as the baseline or Source values for the Custom Spectral Calibration.
The following criteria must be met:
A. The Source must have the same starting and ending wavelength points, and the same wavelength
(data) increment.
B. The file must have a .TXT file extension.
C. The file must have the following file format:
Line 1
– Title (Alpha / Numeric characters only – no spaces)
Line 2
– 380 (Starting Wavelength)
Line 3
– 780 (for PR-730/740/788) or 1080 (for PR-735/745) – Ending Wavelength
Line 4
– 1 (for PR-730/740/788) or 2 (for PR-735/745) – Wavelength (Data) Increment (in
nanometers)
Line 5 to Line N
– Spectral values
Sample .txt File:
M1
3.002
7.002
1.000
3.722937e-003
3.729762e-003
3.611207e-003
3.971064e-003
4.476557e-003
4.434512e-003
4.972667e-003
4.636224e-003
5.055876e-003
.
.
.
.
.
.
1.
Create and save the Source spectral values on the SD card. Make sure this file does not have the same
name as another file on the same card with a
.txt
extension.
2.
Insert the SD card in the Target instrument.
3.
Make sure Custom Spectral Correction is Disabled and that One Time Calibration is Enabled .
4.
Enter the name of the file from Step 1 by touching the Spectral File field to bring up the Spectral File Dialog.