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Fiber Optic Spectrometer Manual
Introduction______________________________________________________ 3
Quick Start Installation______________________________________________ 5
EPP2000 Hardware Interface_________________________________________ 7
Connector Interface Signals____________________________________ 8
Special Interface Signals_______________________________________ 9
Unit Address Selector_________________________________________ 9
Power requirements___________________________________________ 9
ISA2000 address and interrupt selector switches___________________________ 10
SpectraWiz Software General Help_____________________________________ 11
SpectraWiz File Menu _______________________________________________ 15
SpectraWiz Setup Menu _____________________________________________ 17
SpectraWiz View Menu ______________________________________________ 22
SpectraWiz Applications Menu ________________________________________ 26
Introduction
The EPP2000 (portable) and ISA2000 (plug-in) models are compact, fiber optic spectrometer
instruments, used to make various types of spectral measurements in the UV-VIS-NIR ranges.
When used for spectroscopy applications, the instrument can provide wavelength information
used to compute sample absorbance, transmittance, reflectance and emittance (used in
fluorescence and Raman spectroscopy). The unit can also be used to measure spectral
emissions from various light sources such as LED’s (Light Emitting Diodes), LASER diodes,
plasma furnaces, arc lamps, high and low pressure gases, and solar irradiation.
The units provide 2048 wavelengths for each scan over the factory configured range. The range
and coarse resolution are determined by the spectrometers installed grating groove density. The
fine resolution is determined by the installed slit size. The EPP2000 portables connect to a
computers digital parallel port using a standard 25 pin flat ribbon cable or IEEE 1284 rounded
cable. The ISA2000 plug-in is inserted into a computer’s ISA slot.
For multi-beam applications, up to eight EPP2000 units may be connected via USB-2 cables
AND up to eight ISA2000 cards may be inserted into a single industrial computer.
All spectrometer models have optical fiber signal input via female SMA 905 connector.
The list of spectrometer models is shown below (check our web site for the latest
configurations). The EPP2000C model has a special concave holographic aberration corrected
grating. This unit has no mirrors and therefore minimizes stray light and improves instrument
stability because there are less components in the optical plane.
The grating projects a flat field to provide a constant resolution and additionally provides
aberration correction for superb imaging. Another advantage over a ruled plane grating is
reduced surface roughness. This decreases grating scatter and improves detection limits. For
more information, download the white paper entitled “Introduction to reflective aberration
corrected holographic diffraction gratings”.
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