The physical constraints and requirements of many optical radiation measurement tasks prevent the use of handheld instruments such as our MSC15 and BTS256-EF. Despite their extremely compact design, the powerful BTS2048-Series spectroradiometers may be over specified. For such applications, Gigahertz-Optik GmbH offers an interesting alternative with the new intelligent spectral detector CSS-45.
A compact metal housing (1.75” diameter x 2” high) with various mounting options enables universal integration of the CSS-45 in measurement setups. The robust housing and its connectors are splash proof, and therefore suitable for use in industrial applications. A variant with protective glass dome in front of the diffuser is available. A special feature of the detector is its remote-controlled shutter, which allows a dark level measurement to be made at any time.
The CSS-45 detector incorporates a powerful microprocessor which performs not only data acquisition but also all necessary lighting calculations. Both USB 2.0 and RS485 interfaces are standard enabling the flexible configuration of single and multi-detector based systems. An optional software development kit supports integration into third party application software.
With its wide spectral range from 360 nm to 830 nm the CSS-45 is ideal, for example, as a high accuracy photometric and colorimetric detector (according to CIE S023). The precision diffuser provides excellent cosine correction (f2 ≤ 1%). The optical bandwidth correction feature (CIE 214) further improves the quality of the spectral measurement data. Manual and auto gain settings enable a wide measurement from 1 lx to 350,000 lx for illuminance and color measurements.
Additional functions of the CSS-45
The embedded intelligence of the CSS-45 enables the direct output of a comprehensive range of radi-ometric, photometric and colorimetric parameters based on the measured spectral data. Additionally, specialist functions are incorporated for particular applications fields including:
- Horticultural lighting – PAR measurement Photosynthetic Photon Flux Density (PPFD) in μmol/m²s
- Human Centric Lighting – melanopic irradiance and illuminance, melanopic daylight equivalent illuminance
- Phototherapy – total irradiance for bilirubin, Ebi, in mW/cm2 (IEC 60601-2-50) as well as average spectral irradiance in μW/cm2/nm (American Academy of Pediatrics)
One essential quality requirement of spectroradiometric devices is their precise and traceable calibration. The CSS-45 is calibrated by Gigahertz-Optik’s calibration laboratory which is accredited by DAkkS (D-K-15047-01-00) for the spectral responsivity and spectral irradiance according to ISO/IEC 17025. Every device is supplied with its unique calibration certificate.