Viscosity

Fann manufactures a variety of instruments to test the viscosity of a drilling fluid or mud. Ranging from the simple Marsh Funnel to to rotational viscometers like the industry standard Model 35 Viscometer to the high pressure, high temperature iX77 Rheometer, the Fann line includes an instrument for any drillilng fluid testing need, in the field or in the lab.

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DNA System
The Fann DNA system is proprietary software and hardware used to connect multiple Fann Instrument Company products to a computer.
Model 45 APV
The Model 45 APV (Automatic Programmable Viscometer) allows for customized, preprogrammed test schedules with touch screen controls digital measurement technology.
RheoVADR Rheometer
The RheoVADR Variable Automated Digital Rheometer allows recording test data without connecting to a computer or network.
Rheometer Model 50SL High Temperature
Designed for testing fluids at temperatures to 500°F (260°C) and pressures to 1,000 psig (7,000 kPa) in a coaxial cylinder chamber
Viscometer - Model 35
The Fann Model 35 Viscometer is the standard of the industry