The TT-220 Process Viscometer is intended for open tank applications (5-20 gallon, 20-75 liters) requiring constant viscosity monitoring and or control. The TT-220 is often used in coatings or printing applications. The TT220 is a rotational coaxial cylinder (Searle) viscometer providing true dynamic viscosity measurements at defined shear rates, from as low as 0.1 sec-1 to as high as 600 sec-1.