Ocean Optics S2000 - Manual (Page 52)

LS-1-CAL Calibrated Light Source
The LS-1-CAL C ALIBRATED L IGHT S OURCE for the VIS-Shortwave NIR (300-1050 nm) is a tungsten halogen
light source that provides you with known absolute intensity values at several wavelengths, expressed in
µ W/cm 2 /nm. Since the spectral intensity of the LS-1-CAL can be traced to an intensity standard provided by the
National Institute of Standards and Technology (NIST), it is specifically designed for calibrating the absolute
spectral response of your system.
Parts Included
" LS-1-CAL Calibrated Light Source
" Switching AC adapter for stabilizing power
" Power cord for supplying power to the power supply
" Two Lamp Calibration Reports; one for using the LS-1-CAL with a bare fiber and one for using the LS-1-
CAL with a CC-3 cosine-corrected irradiance probe
" A disk that holds files for both lamp calibration reports
" Allen wrench for adjusting the inner barrel of the SMA connector
Caution!
The LS-1-CAL becomes HOT during operation. DO NOT insert flammable materials into the filter slot. The
materials could melt or ignite.Handle with care.
! !
The LS-1-CAL is not designed as an illumination source for absorbance, transmission or reflection
measurements. The LS-1 Tungsten Halogen Light Source should be used for those applications.
Setting Up
The LS-1-CAL is designed to calibrate the absolute spectral response of your system. Before beginning, make
sure you have your LS-1-CAL, your spectrometer, an SMA-terminated optical fiber or CC-3 cosine-corrected
irradiance probe, and OOIIrrad Ocean Optics Irradiance Software. (If you have a spectrometer setup that is
highly sensitive, you may not be able to use the LS-1-CAL as a calibration source.)
Using the LS-1-CAL for Calibration
1. Use an Allen wrench to loosen the set screw on the LS-1-CAL’s SMA connector.
2. If you are using a bare fiber with the lamp, withdraw the inner barrel from the SMA connector. Screw this
connector barrel onto the end of your fiber. The connection should be tight. Insert the barrel/fiber all the way
into the LS-1-CAL’s SMA connector. If you are using a fiber and cosine corrector with the lamp, remove the
inner barrel from the SMA connector. Screw the CC-3 cosine corrector onto the end of the fiber. The
connection should be tight. Insert the CC-3/fiber all the way into the LS-1-CAL’s SMA connector, taking the
place of the SMA's inner barrel.
3. Use an Allen wrench to tighten the set screw on the SMA connector of the LS-1-CAL. Take the other end of
the fiber and screw it all the way into the SMA connector of the spectrometer.
4. Plug the switching AC adapter (the black rectangle-shaped box) into the back of the LS-1-CAL. The adapter
stabilizes the power coming into the lamp to insure constant spectral intensity.
5. Plug the power cord into a standard outlet. Plug the other end of the power cord into the back of the
switching AC adapter.
Light Sources: LS-1-CAL
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