FANN Instruments Model 35 Viscometer 207199 and 10095275

Model 35 Viscometer

Viscometer Model 35 Widely known as the Standard of the Industry for drilling fluid viscosity measurements

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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.

A wide range of accessories are available for the Model 35 Viscometer.

The Model 35 Viscometer has been evaluated for compliance, and fulfills the requirements of EN 61010-1:2010, CAN/CSA C22.2 No. 61010-1-2012 and UL61010-2-030:2012.

A copy of this Declaration of Conformity is available upon request.

 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

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

FANN VISCOMETER MODEL 35SA S/N 10095275 & 7, P/N 207199

WORM GEAR  31771/207963

LOWER CHANGE GEAR 30917/207550

TEMP . WARNING TAG 31794/207971

BEARING ( COVER HOUSING) 30922/207555

SPEED SELECTION  TAG 30795/207498

GEAR WORM 30716/207439

WASHER 30715/207438

BUSHING  30712/207436

SHAFT & GEAR FOR JACKSHAFT ASSY 30813/207507

SPACER  30701/207428

INTERNAL RETAINING RING 30026/207143

FLAT WASHER  31419/207817

MOTOR (35SA) 30725/207447

IDLER SHAFT 30976/207587

FLAT SHAFT 30776/207485

EXTERNAL RETAINER   31398/207814

IDLER GEAR( 35SA)  31919/208004

STRAIN RELIEF  31866/204371

POWER CORD  A7003/203512