The Rosemount OPM3000 Opacity Dust Density Monitor stack mounting transmissometer sensor system consists of an optical transceiver mounted on one side of the stack and a retro reflector mounted on the other.
The OPM3000 ratio measurement technique provides continuous automatic compensation for variations in light source intensity to ensure prolonged instrument accuracy and stability. Since the OPM3000 is insensitive to the absolute intensity of the light source, it is not affected by light source aging.
