The SR-3501 is a portable spectroradiometer that provides an expanded spectral range from 280-2500nm. The SR-3501 is well-suited for radiance/irradiance measurements as well as test and measurement of solar simulators. The SR-3501 and SR-1901 are used for continuous solar simulators.
Equipped with a fiber optic cable and right angle diffuser, these spectroradiometers can measure continuous output over user-defined time periods to ensure long-term stability.
Spectral Range | 280-2500nm |
Spectral Resolution | 4nm (280-1000nm) 9.5nm@1500nm 7.0nm@2100nm |
Sampling Bandwidth (nm) | Data output in 1nm increments; 2221 channels reported |
Spectrometer Type | 3 Diffraction Gratings |
Detector(s) | 512-element UV-enhanced Si Array ---------- Two 256-element TE-cooled extended InGaAs arrays |
Calibration | Factory calibrated for radiance and/or irradiance using NIST traceable source (depending upon optics selection) |
Noise Equivalence Radiance W/cm2/nm/sr (1.2m fiber optic) | 0.8x10-9 @400nm 1.2x10-9 @1500nm 1.8 x10-9 @2100nm |
Stray Light | ≤0.1%; VNIR: <0.03%; SWIR<0.02% |
Software Included | DARWin™ SP Data Acquisition |
Power | 7.5V, 23W |
Dimensions | 8.5" x 11" x 3.5" |
Weight | 8.52 lbs |
Interface | USB, Wireless Connection |
Integration Time | 1 - 1000 ms |
Match Radiance | VNIR: 10 x Solar; SWIR: 2 x Solar |
Wavelength Reproducibility (nm) | 0.1 |
Wavelength Accuracy (nm) | 0.5 |
Automatic Exposure | ✅ |
Shutter for Dark Scans | ✅ |
TTL & Phototriggering for pulsed measurement | No |
