EPP2000C Models
Range 190-900nm
StellarNet's miniature fiber optic spectrometers with concave gratings deliver high performance for spectroscopy applications in the UV-VIS wavelength ranges covering 190-850nm, or optionally 280-900nm. The instruments are exceptionally robust with no moving parts, and are packaged in small rugged metal enclosures (2.75 x4 x6 inch) for portable spectroradiometry and lab or process spectroscopy measurements. The EPP2000C UV-VIS spectrometers utilize a 40mm diameter concave grating with aberration correction to provide superb spectral imaging. This significantly improves spectral shapes by reducing comma and astigmatism found in plane grating spectrograph designs. The spectrograph architecture does not utilize mirrors, and therefore provides the lowest possible stray light in the UV with additional assistance from the holographic line grating.  The concave grating produces a flat field on the CCD detector creating uniform resolution over the entire range.


EPP2000C-VIS-25 Spectrometer-blue film


  UV Absorbance Spectrum of Riboflavin

The units are ruggedized.  As shown above the detector is bolted in position and military grade epoxy holds the concave grating in place making the instruments vibration tolerant, durable, and suitable for just about any lab and/or field measurment. A multi-band filter is integrated into the spectrograph to provide order sorting and prevent optical aliasing. The instruments optical input is attached via standard SMA-905 connector, using single strand fiber optic cable with typical silica core diameters of 400um, 600um, 1000um.

Optional Configurations
Several units may be daisy chained via a parallel cable or USB-2 hub allowing simple configurations for dual and multi-beam process applications.  

Free SpectraWiz Software
The powerful SpectraWiz® 32 bit spectrometer software is provided free of charge with every spectrometer instrument.  This includes drivers and customizable software for operation on Win95 / Win98 / WinNT / WinME / Win2000 /WinXP.    The SpectraWiz software is considered the "Swiss Army Knife of Spectroscopy and may be used to accurately measure wavelength emissions, reflectance, transmission, absorption, concentrations, and absolute intensities.  In addition to real-time spectroscopy,  SpectraWiz® has built-in applications for SpectroRadiometry, SpectroColorimetry, ChemWiz chemistry lab concentration analyzer, and UV level monitors.

Interface
The system includes a high speed plug & play interface using USB-2 connection.

      Specifications                      StellarNet Detector Information                How to Determine Spectral Resolution

The SpectraWiz software is included to accurately measure wavelength emissions, reflectance, transmission, absorption, concentrations, and absolute intensities.
 

      Standard Models

EPP2000 Model	Wavelength Range (nm)	Grating  g / mm	Slit-200 nm res.	Slit-100 nm res.	Slit-50 nm res.	Slit-25 nm res.	Slit-10 nm res.
C-UV-VIS	190-850	590	6.0	3.0	1.5	0.85	0.75
CXR	280-900	590	6.0	3.0	1.5	0.85	0.75

StellarNet SpectraWiz Software                                   (PDF needs Acrobat Reader ver4+)  
StellarNet Spectrometer Features to Compare              (PDF needs Acrobat Reader ver4+)
EPP2000 Portable Spectrometer General Information   (PDF needs Acrobat Reader ver4+)
StellarNet Spectrometer Accessories                            (PDF needs Acrobat Reader ver4+)

 

Spectrum of the Sun