All SPECTRAL EVOLUTION Spectroradiometers come with our exclusive DARWin SP DataAcquisition Package– an easy-to-use menu driven software program designed to analyze
spectral irradiance, radiance, reflectance, transmittance, absorbance and more….

A

Full range UV-VIS-NIR-SWIRLab Spectroradiometers

Fast, full featured andflexible!
All SR Series Spectroradiometers
feature NIST-traceable calibration and automatic dark current
shutter control for easy onetouch spectral radiance &irradiance measurements.



Full range UV-VIS-NIR-SWIR
measurements with just one
scan– no hassling with multiple
spectroradiometers



InGaAs/Si photodiode arrays
and fixed optics- no moving
gratings or internal fiber optics
to break or jamNo-fuss autoexposure control–
thanks to 7 decades ofdynamic range response

Fast, convenient, accurate
one-touch scans– autoscaling& auto dark current shutterEasy to set up anywhere–
compact, lightweight singlebox design with intuitive
software menus.

The exclusive DARWin SP Data Acquisition Module included with each unit allows for full featured instrument control and data
handling. (A) The SR-1900 Spectroradiometer equipped with 1m fiber optic and right angle cosine diffuser was used to analyze
the performance of a commercial solar simulator as per IEC60904-9/ASTM E927-05. The DARWin SP Data Acquisition software
contains subroutines to analyze class performance and create spectral match reports. Pulldown menus for CIE color space arealso available. (B) The full range SR-3500 was used to measure outdoor solar radiance using a 4° lens foreoptic and white reflectance plate. Pull down menus allow for easy calculation of integrated energy measurement. (C, D) Even our entry level SR500 Spectroradiometer comes will all necessary subroutines to generate high quality solar spectra. The figures below demonstrate the radiometric analysis of a commercial solar simulator taken at a customer site. All SPECTRAL EVOLUTION Spectroradiometers are lightweight and easy to carry anywhere.

BCD1 Canal Street ◊ Unit B1Lawrence, MA 01840 USA
Tel: 978 687-1833 ◊ Fax: 978 945-0372
sales@spectralevolution.com
www.spectralevolution.com

Meet our entire lineup of fast, full featured and flexible laboratory spectroradiometers– the easiest fullspectrum instruments to set up and use– from SPECTRAL EVOLUTION
ModelSpectral Range
Spectral Resolution

SR-3500

SR-3501

SR-2500

SR-1900

350-1000nm

280-2500nm

350-2500nm

350-2500nm

280-1900nm

300-1700nm

3.5nm (350-1000nm)

4nm (280-1000nm)

3.5nm (350-1000nm)

3.5nm (350-1000nm)

4nm (280-1000nm)

5nm (300-1000nm)

10nm (1000-1900nm)

10nm (1000-1900nm)

10nm (1000-1700nm)

1.5nm (350-1000nm)

1.5nm 280-1000nm)

1.5nm (300-1000nm)

10nm@1500nm;7nm@2100nm 10nm@1500nm; 7nm@2100nm 22nm@1500nm & 2100nm

Sampling Bandwidth

Spectrometer Type1.5nm (350-1000nm)

1.5nm (280-1000nm)

3.8nm@1500nm;
2.5nm@2100nm3.8nm@1500nm;
2.5nm@2100nm

1.5nm (350-1000nm)

SR-1901 SR-1600 SR-1100 SR-500
320-1100nm

320-1100nm
3.2nm

1.5nm (300-1000nm)
6nm@ 1500nm & 2100nm

3.8nm@1500nm

3 Diffraction Gratings

3.8nm@1500nm

3nm @ 1500nm
1 Diffraction Grating

2 Diffraction Gratings
512-element UV-enhanced Si Array

Detectors
Two 256-element extended InGaAs arrays
Calibration
Noise Equivalence Radiance(1.2 meter fiber optic)

256-element extended InGaAs array

Factory calibrated for radiance and/or irradiance using NIST traceable source
0.8x10-9 W/cm2/nm/sr @400nm 0.8x10-9 W/cm2/nm/sr @400nm 0.8x10-9 W/cm2/nm/sr @400nm
0.8x10-9 W/cm2/nm/sr @400nm
1.2x10-9 W/cm2/nm/sr @1500nm 1.2x10-9 W/cm2/nm/sr @1500nm 1.5x10-9 W/cm2/nm/sr @1500nm
1.2x10-9 W/cm2/nm/sr @1500nm
1.8x10-9 W/cm2/nm/sr @2100nm 1.8 x10-9 W/cm2/nm/sr @2100nm 1.8x10-9 W/cm2/nm/sr @2100nm

0.8x10-9 W/cm2/nm/sr @400nm
1.2x10-9 W/cm2/nm/sr @1500nm

0.8x10-9 W/cm2/nm/sr @400nm

DARWin SP Data Acquisition

Software includedPower

256-element InGaAs
Array7.5V, 15W

7.5V, 23W

6-12V, 0.5W

Dimensions

8.5" x 12" x 3.5"

5.5" x 2.5" x 6.5"

4" x 2" x 5"

Weightless than 8 pounds

less than 3 pounds

less than 2 pounds

Interface
Integration TimeUSB

USB, Bluetooth
7.5 - 1000 ms

Shutter for dark scans

Yes

Automatic exposure

Yes

A/D Converter

16 bitλ Reproducibility

0.1nm

λ Accuracy

0.5nm