Foundry Master Xpert The FM EXPERT is the next level optical emission spectrometer, combining superior analytical performance with a compact size. Its large wavelength range is ideal for the analysis of all relevant elements in metals quality assurance and production process control. The FM EXPERT also allows for the analysis of nitrogen at low levels thanks to its compact CCD optics system. The FM EXPERT combines our patented smart optics with an improved plasma view, guaranteeing excellent analytical performance with low detection limits over the entire wavelength range. The argon purged optics reduce maintenance intervals and the costs of ownership. Unique in its class, the FM EXPERT's sealed argon system for optimised optical plasma view and the concentric electrode shielding argon flow ensure reliable nitrogen analysis down to a detection limit of just 30 ppm.