Viscosity and temperature are interdependent. Correlating viscosity data between the process and the laboratory can be difficult, especially when the process temperature fluctuates and the lab viscosity measurements are taken at a fixed temperature. More often than not, periodic lab viscosity measurements are not adequate for process control as process changes can result in drift and the result is that the actual viscosity od the end-product and end up significantly different from the lab projection.
The answer to this problem is TCV or Temperature Compensated Viscosity.
TCV provides an accurate calculation of viscosity at a specific reference temperature which differs from actual process conditions. This function assumes a linear relationship between temperature and the double logarithm of viscosity and is based on ASTM Method D341. Once enabled, TCV is highly accurate for Newtonian hydrocarbons and yields a reliable approximation for most other Newtonian and non-Newtonian fluids.
The ViscoPro2100 viscometer incorporates a TCV feature and it can be enabled through the Web User Interface (UI). The following article provides you with the necessary information to enable and set-up the Temperature Compensated Viscosity feature on your viscometer so that you can adequately correlate the process viscosity and laboratory viscosity and provide uniform product to your customers.