Saving the new calibration coefficients: usb mode – Ocean Optics HR4000CG-UV-NIR User Manual
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A: Calibrating the Wavelength of the HR4000
7. Record the Intercept, as well as the First, Second, and Third Coefficients. Additionally, look at
the value for R squared. It should be very close to 1. If not, you have most likely assigned one of
your wavelengths incorrectly.
Keep these values at hand.
Saving the New Calibration Coefficients: USB
Mode
Ocean Optics programs wavelength calibration coefficients unique to each HR4000 onto an EEPROM
memory chip in the HR4000.
You can overwrite old calibration coefficients on the EEPROM if you are using the HR4000 via the USB
port. If you are using the HR4000 via the serial port, consult the
Saving the New Calibration Coefficients:
section later in this appendix.
►
Procedure
To save wavelength calibration coefficients using the USB mode, perform the following steps:
1. Ensure that the HR4000 is connected to the PC and that you have closed all other applications.
2. Point your browser to
scroll down to Microcode. Select USB EEPROM Programmer.
3. Save the setup file to your computer.
4. Run
the
Setup.exe file to install the software. The Welcome screen appears.
5. Click
the
Next button. The Destination Location screen appears.
6. Accept the default installation location, or click the Browse button to specify a directory. Then,
click the Next button. The Program Manager Group screen appears.
7. Click
the
Next button. The Start Installation screen appears.
8. Click
the
Next button to begin the installation. Once the installation finishes, the Installation
Complete screen appears.
9. Click
the
Finish button and reboot the computer when prompted.
10. Navigate to the USB EEPROM Programmer from the Start menu and run the software.
11. Click on the desired HR4000 device displayed in the left pane of the USB Programmer screen.
12. Double-click on each of the calibration coefficients displayed in the right pane of the USB
Programmer screen and enter the new values acquired in Steps 5 and 6 of the
Wavelength of the Spectrometer
section in this appendix.
13. Repeat Step 12 for all of the new values.
14. Click on the Save All Values button to save the information, and then Exit the USB Programmer
software.
The new wavelength calibration coefficients are now loaded onto the EEPROM memory chip on the
HR4000.
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