SpectroRadiometer PDF Download

These instruments are calibrated to measure the spectral irradiance in units of watts per meter square over the wavelength range in nanometers provided by the selected spectrometer model.  Currently, StellarNet offers Radiometer systems in the 200-1700nm range; the table below details the various ranges for each Stellarnet Spectroradiometer.  The StellarNet EPP2000 standard model, EPP2000C concave grating model, and EPP2000-IG InGaAs model can be configured to have the correct slit size and detector array to suite your application.  Calibrated spectroradiometers can be used to measure LED absolute intensity,  xy chromaticity (CIE 1931), purity, and dominant wavelength.

• Fast delivery: most system can be calibrated and shipped within 1 week after receipt of order
   

• Absolute calibration: accuracy within 10% at detector integration setting used for calibration
   

• Certificate available: documentation with NIST traceable serial numbers.

See more StellarNet Measurement Diagrams!!

StellarNet also has extended range spectroradiometers available to measure spectral irradiance over a wide range of wavelengths.  The EPP2000UVN-SR spectroradiometer with CCD detector array covers a range of 200-1100nm.  While the EPP2000C-SR super range dual blazed concave grating spectroradiometer offers a range of 230-1100nm while retaining all of the characteristics of a concave grating spectrometer!!! In addition, StellarNet offers a Dual Channel Spectrometer system for spectroradiometry, the Dual DSR (Detector Super Range) combines a CCD and InGaAs detector to cover a wavelength range of 200-2300nm for selected models.

Power and InterFace
Portable spectrometers include a USB-2 interface cable and +5VDC power adapter for 120VAC-60H (light sont transformers with U.S. style 2 prong plugs). For usage outside the U.S.A., we offer an upgrade to universal power adapters. If you don't have a USB-2 port, connecting the spectrometer to a second EPP printer port on your computer is most convenient and recommended. For portable notebook computers that don't have a USB-2 port or an EPP capable printer port, we offer the PCMCIA card style EPP interface.

StellarNets' Cosine Receptors allow collection of collect light with an 180 field of view using demountable diffusers with ~10% loss.  The CR1-UVN is a ½” diameter near cosine receptor using sanded fused silica diffuser for 200-1700nm.  Has reduced 90° FOV and low 7% loss     

See more of StellarNet's cosine receptor information!!!

Calibration

The factory performs a calibration for the appropriate wavelength range from 300-850nm or 350-1100nm using an NIST traceable calibration source lamp.  This irradiance calibration service (IRRAD-CAL) is optional.  If the user has an appropriate irradiance calibration source lamp, a field re-calibration can be easily performed using the included SpectraWiz software.

Halogen-lamp spectra - EPP2000-UVN-SR Spectrometer Range 200-1100nm

Dual DSR Spectrometer- Halogen-lamp spectra -  (300-1700nm)

SpectraWiz Software- displaying 1931 xy chromaticity diagram measuring the color of light and Corelated Color Temperature
 

EPP2000-UVN-SR- Direct SUN Light  December Noon – Tampa, FL
 

EPP2000C- Direct SUN Light 
December Noon – Tampa, FL