Custom testing profiles can be created and saved on the unit, no external computer is required. Data is graphed on screen and saved into memory as tests are performed. The data can later be exported to an external drive through the USB port.

This Couette type coaxial viscometer measures the shear stress in the gap between an outer rotating cylinder (rotor) and an inner suspended bob. The viscosity measurements are made by rotating the rotor at a known velocity and measuring the drag (torque) that is exerted on the bob. This measured torque value is then used to compute the viscosity in centipoise and dial units.


  • Springless design improves accuracy and resolution
  • Measurements over a broad range of viscosity (0 to 30 oz-in of torque)
  • Bi-directional testing functionality
  • 100% digital measuring technology
  • Onboard Smart Screen Computer with Windows® 7* touch panel technology
  • Certified factory calibration
Model 45
Model 45
Speed Range 0.1 to 600 RPM
Speed Accuracy +/- 0.001 RPM
Torque Accuracy 0.5%
Resolution 0.001 oz-in
Repeatability +/- 1.0%

Ordering Information

Part No. 102410859 — Model 45 APV Automatic Programmable Viscometer

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