NDJ-1 Rotational Viscometer Viscosity Meter Fluidimeter Rotor Size: No 1;2;3;4 Four Spindles NDJ-1 rotary viscometer is a new instrument used for determining the liquid viscose capacity and the absolute viscosity. Measuring range: 10-100,000mPas. According to different equipments, different rotors ( 1,2,3,4 ) will be attached, it can be select with the velocity according to the viscosity of the liquid. PRINCIPLE: Synchronous motor rotates with stable rate, connect scale disk, through hairspring and rotating shaft, drives rotors to rotate.the rotors will subject to a torque moment proportional to liquid viscosity because of the liquid viscose hysteresis.The torque moment will be measured by the sensors and processed into the viscosity and shown on the display. NDJ-1 has been widely used to determine and measure the liquid viscosity in many application such as grease, painting, plastic, pharmacy and adhesives. It is a precison instrument to monitor and control the stable quality of products in the manufacturing.The whole set of instrument has good quakeproof packing to ensure the precision of instrument.