1: Setup
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000-10000-190-02-201511
Connecting a Spectrometer to the HL-3-INT-CAL Models
When Using an Integrating Sphere
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Procedure
Use the following procedure to connect your HL-3 light source to a spectrometer when using an
integrating sphere (INT models):
1.
The HL-3-CAL-INT and HL-3-CAL-INT-EXT have a diffusor for light output. Place the HL-3-
CAL-INT output diffusor at the aperture of your integrating sphere. The minimum aperture
diameter of your integrating sphere should be 6 mm. The HL-3-CAL-INT is validated for any
larger Aperture diameters up to 30 mm. The HL-3-CAL-INT has to be placed in a vertical
orientation.
2.
Plug the switching AC adapter into the back of the HL-3. The adapter stabilizes power coming
into the lamp to ensure constant spectral intensity.
3.
Plug the wall mount AC adapter into a standard outlet.
4.
Turn the lamp on. Allow the lamp to warm up for at least 15 minutes before using it.
5.
Insert the calibration disk that came with your light source into your computer. This disk contains
one ASCII file with the same information as the Lamp Calibration Reports that came with your
HL-3. The file name contains the lamp's serial number, followed by
.LMP.
Copy these files to
the desired directory on your computer.
6.
Start your spectrometer operating software. See your spectrometer manual for instructions on
calibrating the spectrometer with the HL-3.
Tips
When you perform measurements with the calibrated spectrometer system, record a new
dark spectrum before each measurement. This minimizes the influence of a shifted dark
spectrum.
Use a log to monitor the operation time of the light source. Recalibration of the light
source after 50 hours of operation is recommended. A sample log is provided in
Appendix B: