BROOKFIELD MODEL BF35
Installation, Operation and Maintenance Instructions
Manual No.
M13-10000
TABLE OF CONTENTS
Section 1: Introduction .....................................................................................................7
Description ...................................................................................................................7
Section 2: Specications .................................................................................................8
Section 3: Safety .............................................................................................................11
Electrical Requirements .............................................................................................12
Environment Conditions .............................................................................................12
Installations ................................................................................................................12
Equipment Operations ...............................................................................................13
Section 4: Setup ..............................................................................................................14
Section 5: Calibration .....................................................................................................15
Procedure ..................................................................................................................15
Section 6: Operation .......................................................................................................17
Measuring Viscosity ...................................................................................................17
Measuring Gel Strength .............................................................................................17
API T esting .................................................................................................................17
Section 7: Calculations ..................................................................................................18
Section 8: Disassembly ..................................................................................................19
Section 9: Maintenance ..................................................................................................20
The information in this document is believed to be accurate and reliable. However, Brookeld
Engineering Laboratories, Incorporated, cannot accept any nancial or other responsibilities that may
result from the use of this information. No warranties are granted or extended by this document.
Brookeld Engineering Laboratories, Incorporated reserves the right to change any or all information
contained herein without prior written notice. Revisions may be issued at the time of such changes
and/or deletions.
Any duplication of this manual or any of its parts without expressed written permission from Brookeld
Engineering Laboratories, Incorporated is strictly prohibited.
Any correspondence regarding this document should be forwarded to:
Brookeld Engineering Laboratories, Incorporated
Process V iscometer Division
11 Commerce Boulevard
Middleboro, Massachusetts 02346
U.S.A.
Telephone: (508) 946-6200
FAX: (508) 946-6262
Internet: http://www.brookeldengineering.com
The following Brookeld Engineering Laboratories, Incorporated trademarks and service marks may
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All other trademarks or registered trademarks are the property of their respective holders.
Copyright© 2005 Brookeld Engineering Laboratories, Incorporated Printed in U.S.A.
Introduction
Description
Section 1 - Introduction
The BF35 Viscometer is extensively used worldwide in both the eld and
laboratory for the precise measurement of rheological properties of uids.
The BF35 Viscometer determines the ow characteristics of oils and drilling uids
in terms of shear rate and shear stress over various time and temperature ranges
at atmospheric pressure. Speeds are easily changed with a control knob, and
shear stress values are displayed on a lighted magnied dial for ease of reading.
The viscometer’s motor RPM is continuously monitored and automatically
adjusted by the Brookeld Pulse-Power electronic speed regulator to maintain a
constant shear rate under varying input power and drilling uid shear conditions.
The eight precisely regulated test speeds (shear rates in RPM) are as follows: 3
(Gel), 6, 30, 60, 100, 200, 300, and 600. A higher stirring speed is also provided.
Speeds may be changed with a control knob selection, without stopping the motor .
The BF35 is suitable for both eld and laboratory use and uses a motor-driven
electronic package to provide drilling uid engineers with an extremely accurate
and versatile tool. The BF35 operates from a 13 - 16 VDC power source. The
electronic regulator continuously monitors and automatically adjusts the rotational
speed to maintain a constant shear rate under varying uid shear conditions and
input power variations that are commonly found on-site.
Brookeld Engineering Labs., Inc. Page 7 Manual No. M13-10000