The ECA-3 Elemental Crossbelt Analyzer is the first on-the-belt, full-stream analyzer to use Prompt Gamma Neutron Activation Analysis (PGNAA) technology, a technique pioneered and commercialized by Thermo Fisher Scientific™ in 1984 that has been widely employed for online elemental coal analysis of sample streams. The utility of this analyzer can be enhanced by applying either Thermo Scientific™ COBOS Blending Software or Thermo Scientific™ Silo Tracking Software to track coal composition in downstream bunkers, stockpiles or silos.
PGNAA technology is a significant improvement over dual-gamma and other less sophisticated analytical approaches for through-belt ash measurement. It measures major ash constituents independently as well as sulfur, and then sums them to determine total ash. Because of this, it is not coal-specific and is highly reliable in applications where ash mineralogy varies or where there are multiple seams or coal types. The ECA-3 Elemental Crossbelt Analyzer also provides minute-by-minute analyses of sulfur; and, with an integrated moisture meter, can present moisture and BTU/lb values as well.