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Measuring Equipment » Viscosity Measuring Systems PVS

Software

Convenient Windows-based operation

All PVS system configurations can be controlled over an interface from any commercially available PC. The standard version of this user-friendly yet powerful PC program performs all of the calculations needed to determine the kinematic, dynamic, relative, reduced, and inherent viscosity, as well as the K-Value, completely automatically based on the obtained measured values. Additional software modules can be integrated in the basic software for determination of additional material characteristics.

Basic software

Windows software for all commercially available PCs and operating systems
Simultaneous operation of up to eight measuring stands

Calculation and representation of

Throughput times and their average
Standard deviation
Hagenbach correction (Kinetic energy correction)
Absolute kinematic viscosity
Absolute dynamic viscosity
Relative viscosity
Reduced viscosity (viscosity number)
Inherent viscosity (logarithmic viscosity number)
K-Value according to Fickentscher

Additional software modules

INV-DLL - Determines the intrinsic viscosity of polymers (limiting viscosity, Staudinger Index) and their mean molecular weight (chain length).

The INV-DLL module offers six different methods of determining intrinsic viscosity:

Formula according to Schulz-Blaschke
Formula according to Billmeyer
Formula according to Solomon-Ciuta
Point-slope method
Linear regression with parallel measurement
Linear regression with serial measurement

It also allows the calculation of:

Molecular mass according to Mark-Houwink

VID-DLL

Determines the viscosity index of oils in accordance with ISO 2909, ASTM 2270, ASTM 445/446, and IP 226/91.

ENZ-DLL

Determines the reaction activities of certain enzymes derived from the time-dependence of the viscosity.