Opsytec Spectroradiometer SR900 – High-Resolution UV-VIS-IR Measurement System

The SR900 is a compact, high-precision spectroradiometer designed for fast and accurate measurements across the UV range, visible spectrum, and IR. Built around a 2048-pixel silicon detector and an array spectrometer with no moving parts, it delivers a spectral resolution of 0.4 nm, ensuring stable and reliable performance even in demanding laboratory and industrial environments. Factory-calibrated and traceable to PTB, the SR900 supports optional DAkkS testing for applications requiring accredited calibration. Thanks to its nearly scatter-free optical design, it achieves exceptional sensitivity in the UV range. System control and data analysis are performed through the SRpro spectral software, enabling radiometric, colorimetric, and effects-based evaluations. The SR900 is designed to work in combination with an SMA-905 quartz light guide and radiometric sensor heads for irradiance and illuminance measurements. A wide selection of accessories and custom extensions is available. For luminous flux and LED characterization, the SR900 can also be paired with an integrating sphere. The SR900 offers a spectral range of 200–1100 nm and uses a 2048-pixel silicon detector for high-precision measurements. It delivers a spectral resolution of 0.4 nm with a 2.3 nm bandwidth, supported by a nearly scatter-free grating with 300 lines/mm. Its optical design contains no moving parts, ensuring long-term stability. The system is PTB-traceable and can be optionally tested by a DAkkS-accredited laboratory. All control, analysis, and effects-based evaluations are carried out through the SRpro software, enabling measurements of irradiance, illuminance, spectral distribution, color metrics, and biological effectiveness. Included & Required Components This system requires an SMA-905 quartz light guide and compatible radiometric sensor heads for irradiance and illuminance measurements. It can be complemented with an integrating sphere for luminous flux and LED analysis, as well as a wide range of optional accessories and custom extensions. The SRpro spectral analysis software is used for system control, data evaluation, and advanced radiometric and colorimetric measurements. Compatible Accessories Integrating sphere (for luminous flux and LED measurements) Wide range of optional accessories and custom extensions SRpro spectral analysis software (control and evaluation) Applications Spectroradiometry (UV–VIS–IR) Online process control & quality control Testing of lamps and LEDs Color measurements & color control Global radiation measurement Inspection of optical materials (e.g., light conductors) Qualitative and quantitative analysis in chemistry, pharmacy, and biology Technical Specifications Feature Detail Spectral range 200–1100 nm Spectral resolution 2.3 nm (FWHM) Grating 300 lines/in (300 l/mm) Focal length 2.95 in (75 mm) Blaze wavelength 250 nm Detector SI Pixel size 0.00055 x 0.00787 in (14 x 200 µm) Number of pixels 2048 Pixel distance 0.000017 in (0.44 nm) Resolution 16 bit Integration time 0.0001 s to 60 s (0.1 ms to 60 s) Max. dynamic range 10^4:1 with 3 measurements Interface USB Dimensions 6.97 x 4.92 x 1.77 in (177 x 125 x 45 mm) Weight 1.32 lb (0.6 kg) Supply voltage 5 V, 500 mA Power < 3 W Operating temperature 41°F to 104°F (5 to 40 °C) Storage temperature 14°F to 140°F (-10 to 60 °C) Humidity <80%, non-condensing System requirements Windows 10/11, minimum 1 GB RAM, 50 MB free HDD TDS