• Jeti Specbos 2501 UV VIS NIR spectroradiometer

Jeti Specbos 2501 UV VIS NIR spectroradiometer

JETI specbos 2501 is the evolution of the successful models specbos 1211-2 and the spectraval series. It is a fast and precise broadband spectroradiomter, which is available in three basic models: specbos 2501, specbos 2501-NIR and specbos 2501-UV. These basic models can be customized by combining with one or more add-ons (please see below).

Highlights

  • Max Wavelength range 200 to 1100 nm
  • Fast measurement of Radiance
  • Radiometric software JETI LiVal is included in the standard scope of delivery
  • Optical bandwidth 4 nm (can be increased to 2 nm by adding the HiRes add-on, only available for VIS wavelength range)
  • Measurement in Radiance (basic configuration) and Irradiance mode (diffusor required)
  • Start of measurement with external trigger signal by adding the trigger add-on
  • Can be equipped with LAN connector incl. PoE function by adding the LAN add-on
  • Highly sensitive
  • Internal target spot laser
  • Mechanical shutter for dark signal compensation
  • Automatic measurement in selectable time intervals
  • USB-C
  • Bluetooth (standard, can be replaced by LAN connector, see LAN add-on)

specbos 2501 can be customised to your needs

Please add one or more of the following add-ons to configure specbos 2501 according to your requirements:

  • HiRes
    Increases the optical resolution (FWHM) from 4 nm to 2 nm in VIS and 3 nm in NIR/UV -> specbos 2501-HiRes
    Can be combined with specbos 2501
  • LAN
    Bluetooth interface replaced by LAN interface with PoE function -> specbos 2501-LAN
    Can be combined with specbos 2501, 2501-NIR, 2501-UV
  • focus
    Necessary, if the device is to be used with an Add-on optics -> specbos 2501-focus
    Can be combined with specbos 2501, 2501-NIR, 2501-UV
  • trigger
    Enables the possibility of a hardware triggered measurement -> specbos 2501-trigger
    Can be combined with specbos 2501, 2501-NIR, 2501-UV 

Wavelength range
specbos 2501
380 ~ 780 nm
specbos 2501-NIR
380 ~ 1100 nm
specbos 2501-UV 
200 ~ 1100 nm
Optical resolution (FWHM) 
≤ 4.0 nm (all versions); ≤ 2.0 nm (VIS, specbos 2501-HiRes) 
Wavelength resolution
1.0 nm
Digital electronic resolution
16 bit ADC
Viewing angle
2.1° (Radiance mode)
Measuring distance/ diameter
15 cm - Ø 5 mm; 50 cm - Ø 20 mm; 100 cm – Ø 38 mm; 200 cm – Ø 74 mm (measured from front end of the device) 
Measuring values
Spectral Radiance, Luminance, total Radiance, x,y, u’,v’, CCT, CRI, color purity, RGB, PAR, TLCI, circadian metrics and others 
With optional diffusor Spectral Irradiance/ total Irradiance/ Illuminance
Measuring ranges/ Accuracies/ Reproducibilities
Luminance measuring range
0.2 ~ 150 000 cd/m² (Illuminant A) 
0.2 ~ 100 000 cd/m² (typical warm white LED) 
(higher values with optional filter) 
Luminance accuracy
± 3.5 % (Illuminant A @ 100 cd/m2, k=2) 
Luminance reproducibility
± 1 % 
Chromaticity accuracy
± 0.002 x, y (Illuminant A, k=2)
Color reproducibility
± 0.0005 x, y (Illuminant A)
Illuminance measuring range
1 ~ 800 000 lx (Illuminant A), 1 ~ 500 000 lx (typical warm white LED)
Illuminance accuracy
± 2.4 % (Illuminant A @ 2000 lx, k=2) 
CCT reproducibility
± 20 K (Illuminant A) 
Max. wavelength error
± 0.3 nm (HgAr line source) 
Polarization error f8 
< 1 %


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