Pharma refractometer PR-43-P

The sensor operates on the critical angle principle. The measuring head comprises an LED light source whose beam is directed towards a sapphire prism. The refracted light illuminates a digital CCD camera allowing an extremely precise determination of the position of the shadow zone. The optical image is then transformed into an electrical signal, determining the refractive index nD.

This technology uses no moving parts and therefore ensures maximum reliability on an industrial site. The measuring head is fixed by a special fitting to be welded to the installation or via a Varivent-type flange.