The Analect Diamond 20 is a general purpose instrument used for laboratory and process development applications. Both the FTIR (7,000 to 450 cm-1) and the FTNIR (12,000 to 1,200 cm-1) versions feature the same patented Transept® IV Interferometer with refractively scanned design, using different source modules and optics to optimize the performance for the spectral region of interest. Solid, liquid and gas process applications and calibration models are routinely developed on the Diamond 20 and seamlessly transferred to their on-line counterparts.