The SR-3501 is a portable spectroradiometer that provides an expanded spectral range from 280-2500nm. Features include:

• Spectral resolution
  • 4nm @ 280-1000nm
  • 9nm @ 1500nm
  • 7nm @ 2100nm
• Data output is 1nm increments with 2221 channels reported
• Factory calibrated for radiance/irradiance using NIST traceable source (depending on optics selected)
• Compact design, portable instrument

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:

• SR-3501: 280-2500nm - one silicon photodiode array
  detector and two InGaAs photodiode array detectors
• SR-1901: 280-1900nm - one silicon photodiode array
  detector and one InGaAs photodiode array detector
• Spectral match to AM0, AM1.5, and AM1.5 global tilt

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.