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Model 35 Viscometer

Product Numbers: 201841411846

Product description: Fann produces a range of true Couette coaxial cylinder rotational viscometers. The Model 35 Viscometer is the best known and most commonly used Fann viscometer.

INTRODUCTION

Model 35 Viscometer

Viscometer Model 35

Fann produces a range of true Couette coaxial cylinder rotational viscometers. The Model 35 Viscometer is the best known and most commonly used Fann viscometer.

The test fluid is contained in the annular space or shear gap between the cylinders. Rotation of the outer cylinder at known velocities is accomplished through precision gearing. The viscous drag exerted by the fluid creates a torque on the inner cylinder or bob. This torque is transmitted to a precision spring where its deflection is measured and then related to the test conditions and instrument constants.

This system permits the true simulation of most significant flow process conditions encountered in industrial processing.

Direct Indicating Viscometers combine accuracy with simplicity of design, and are recommended for evaluating materials that are Bingham plastics. Model 35 Viscometers are equipped with factory installed R1 Rotor Sleeve, B1 Bob, F1 Torsion Spring, and a stainless steel sample cup for testing according to American Petroleum Institute Specification RP 13B.

Other rotor-bob combinations and/or torsion springs can be substituted to extend the torque measuring range or to increase the sensitivity of the torque measurement. Shear stress is read directly from a calibrated scale. Plastic viscosity and yield point of a fluid can be determined easily by making two simple subtractions from the observed data when the instrument is used with the R1-B1 combination and the standard F1 torsion spring.

Ordering Information and Specifications

Six speed viscometers have speeds of 600, 300, 200, 100, 6, and 3 rpm

Twelve speed viscometers have speeds of 600, 300, 200, 180, 100, 90, 60, 30, 6, 3, 1.8, and 0.9 rpm

Part No. Model No. # of Speeds Voltage
207198 35A 6 115 Volts 60 HZ
207199 35SA 6 115 Volts 50 HZ
207200 35A/SR-12 12 115 Volts 60 HZ
207201 35SA/SR-12 12 115 Volts 50 HZ
101671767 35SA/SR-12 with Case and Transformer 12 115 Volts 50 HZ
101671768 35A with Case 6 115 Volts 60 HZ
101671770 35SA with Case and Transformer 6 115 Volts 50 HZ
101671771 35SA/SR-12 with Case 12 115 Volts 60 HZ

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