SONARtrac PFM technology together with CYCLONEtracTM PST takes mill grinding efficiency to even higher levels - Combining the power of SONARtrac VF/GVF with PFM and CiDRA’s CYCLONEtrac Particle Size Tracking System (PST), which provides real-time particle size measurement of each cyclone, there is finally an integration of technologies that truly enables the transformation of data, to knowledge, to action, thereby providing the ability to optimize recovery, throughput and net metal production. When sump levels are low, air can be introduced into the hydrocyclone line. This condition can be detrimental to cyclone performance. If entrained air in a hydrocyclone feed is not detected, it can cause coarse particles to carry over to the overflow. In addition, if air is present in the feed slurry, the liner wear will increase and cyclone performance can deteriorate.