The Black Pearl Viscometer from ATS RheoSystems is a high-performance rotational viscometer capable of both steady shear and yield stress testing in a rugged, compact footprint. Designed for performing both routine rheological tests, such as single point viscosity checks for QC, to complex rheological evaluation for R&D, the viscometer is suited for investigating the mixing, stirring and process flow characteristics of fluid systems. The unit comes standard with built-in Peltier temperature control for all measuring systems. Cone and plate, parallel plate and concentric cylinder measuring systems are also included. The measuring systems employ “Quick Capture” mounting technology. The gapping mechanism is highly accurate and user-adjustable. The viscometer has an angular velocity range from 0.01 to 200 rad/sec, a torque range from 0.005 to 20 mNm and a temperature range from -10 to 120 C.