BROOKFIELD DIAL READING VISCOMETER with Electronic Drive Operating Instructions Manual No. M00-151-H0612 SPECIALISTS IN THE MEASUREMENT AND CONTROL OF VISCOSITY with offices in : Boston • Chicago • London • Stuttgart • Guangzhou BROOKFIELD ENGINEERING LABORATORIES, INC. 11 Commerce Boulevard, M iddleboro, M A 02346 USA T EL 508-946-6200 F AX 508-946-6262 Brookfield Engineering Laboratories, Inc. or 800-628-8139 (USA e xcluding MA) INTERNET http://www.brookfieldengineering.com Page 1 Manual No.
Table of Contents I. INTRODUCTION ................................................................................................................ 5 I.1 Components ....................................................................................................................5 I.2 Utilities ...........................................................................................................................6 I.3 Specifications ........................................................................
I. INTRODUCTION The Brookfield Dial Reading Viscometer measures fluid viscosity at given shear rates. Viscosity is a measure of a fluid’s resistance to flow. You will find a detailed description of the mathematics of viscosity in the Brookfield publication “More Solutions to Sticky Problems”, a copy of which was included with your Dial Viscometer. The Dial Viscometer rotates a sensing element in a fluid and measures the torque necessary to overcome the viscous resistance to the induced movement.
1 1 1 1 Carrying Case Shipping Cap Instruction Manual Factor Finder 001Y B-30-1 M/00-151 CC-9 Please check to be sure that you have received all components, and that there is no damage. If you are missing any parts, please notify Brookfield Engineering or your local Brookfield agent immediately. Any shipping damage must be reported to the carrier. I.2 Utilities VAC; Hz Limits 100 - 240 VAC; 50/60 Hz ± 5% Power Supply 15 Watts, Class II certified plug-in power supply rated: 12V @ 1.
Notice to customers: This symbol indicates that this product is to be recycled at an appropriate collection center. Users within the European Union: Please contact your dealer or the local authorities in charge of waste management on how to dispose of this product properly. All Brookfield offices and our network of representatives and dealers can be found on our website: www.brookfieldengineering.com Users outside of the European Union: Please dispose of this product according to your local laws.
I.5 IQ, OQ, PQ Please refer to our website, www.brookfieldengineering.com, for a guideline document for validating this instrument to meet IQ, OQ, PQ (Installation Qualification, Operation Qualification, Performance Qualification) requirements for those customers who need such documentation. I.6 Safety Symbols and Precautions Safety Symbols The following explains safety symbols which may be found in this operating manual. Indicates hazardous voltages may be present.
Instrument and Keypad: Clean with a dry, non-abrasive cloth. Do not use solvents or cleaners. Immersed Components (spindles): Spindles are made of stainless steel. Clean with a non-abrasive cloth and solvent appropriate for sample material. When cleaning, do not apply excessive force, which may result in bending spindles. Brookfield Engineering Laboratories, Inc. Page 9 Manual No.
II. GETTING STARTED II.1 Operation 1. Be sure the plug of the power supply is securely plugged into your power source. CLUTCH LEVER SPEED KNOB (rpm) CLAMP 2. Plug the metal jack of the power supply into the circular receptacle on the back of the Viscometer. POWER SUPPLY RECEPTACLE MOTOR ON/OFF/PAUSE 3.
II.2 Using the Viscometer for Measurements 1. Mount the guard leg (if used) on the Viscometer. . 2. With no spindle attached, lower the Viscometer by turning the black knob on the right side of the clamp. Center the viscometer over the test material. 3. Take care to avoid trapping air bubbles under the spindles, especially the disk-type. Begin by immersing the spindle on a diagonal path across the surface of the fluid.
For maximum accuracy do not take readings below 10% torque. Do not run your Viscometer for extended periods of time at a % torque greater than 100%. 6. Switch the motor to the OFF position when changing spindles and samples. Remove the spindle before cleaning. 7. Interpretation of results is discussed in Appendix B of this manual and in our publication "More Solutions to Sticky Problems." The following tables apply to Brookfield Viscometer Models LV, RV, HA and HB with standard spindles.
II.4 Consideration for Making Measurements In taking viscosity measurements with the Dial Viscometer, there are two considerations which pertain to the low viscosity limit of effective measurement. 1) Viscosity measurements should be accepted within the equivalent % Torque Range from 10% to 100% for any combination of spindle/speed rotation. 2) Viscosity measurements should be taken under laminar flow conditions, not under turbulent flow conditions.
APPENDIX A - Viscosity Ranges LV Series Viscometers with Spindles #61 - #64 RV/HA/HB Series Viscometers with Spindles #2 - #7 Viscosity Range (cP) Viscometer Minimum Maximum LVT 15 2,000,000 RVT 100 8,000,000 HAT 200 16,000,000 HBT 800 64,000,000 SSA & T-Sel Spindle Shear Rate (sec -1) Viscosity (cP) 16 0.29N 200 18 1.32N 5 25 0.22N 800 31 0.34N 50 - 100,000 34 0.28N 100 - 200,000 SSA & T-Sel Spindle Shear Rate (sec -1) 14 0.40N 1,250 15 0.48N 500 21 0.
UL Adapter UL Spindle Shear Rate (sec -1) YULA-15 or 15Z ULA-DIN-Y Viscosity (cP) LVT RVT HAT HBT 1.22N 1.0 - 2,000 6.4 - 2,000 12.8 - 2,000 51.2 - 2,000 1.29N 1.9 - 3,812 12.2 - 5,000 24.4 - 5,000 97.
APPENDIX B - Variables in Viscosity Measurements As with any instrument measurement, there are variables that can affect a viscometer measurement. These variables may be related to the instrument (viscometer), or the test fluid. Variables related to the test fluid deal with the rheological properties of the fluid, while instrument variables would include the viscometer design and the spindle geometry system utilized.
Rheopectic - A rheopectic fluid has an increasing viscosity under a constant shear rate (rpm). Brookfield publication, “More Solutions to Sticky Problems”, includes a more detailed discussion. of rheological properties and non-Newtonian behavior. Viscometer Related Variables Most fluid viscosities are found to be non-Newtonian. They are Shear Rate dependent on the measurement conditions. The specifications of the viscometer spindle and chamber geometry will affect the viscosity readings.
APPENDIX C - Calibration Verification The accuracy of the Dial Viscometer is verified using viscosity standard fluids which are available from Brookfield Engineering Laboratories or your local Brookfield agent. Viscosity standards are Newtonian, and therefore, have the same viscosity regardless of spindle speed (or shear rate). Viscosity standards, calibrated at 25°C, are shown in Table C- 1. For more help you can go to the website, www.brookfieldengineering.com, and download the video.
Brookfield Viscosity Standard Fluid General Information We recommend that Brookfield Viscosity Standard Fluids be replaced on an annual basis, one year from date of initial use. Exposure to outside contaminants, such as solvent, standard of different viscosity or other foreign material, requires replacement annually. Oil Fluids do have an expiration date on the label that should be adhered to. Viscosity Standard Fluids may be stored under normal laboratory conditions.
7) The viscosity reading should equal the cP value on the viscosity standard fluid to within the combined accuracies of the Viscometer and the viscosity standard (as discussed in the section entitled, Interpretation of Calibration Test Results) which appears later in this section.
Calibration Procedure using UL or DIN Adapters When a UL or DIN Adapter is used, a water bath should be stabilized at the proper temperature: 1) Put the proper amount of viscosity standard fluid into the UL Tube. (Refer to the UL Adapter instruction manual). 2) Attach the spindle (with extension link and coupling nut) onto the Viscometer. 3) Attach the tube to the mounting channel.
7) The viscosity reading should equal the cP value on the viscosity fluid standard to within the combined accuracies of the viscometer and the standard (as discussed in the section entitled, Interpretation of Calibration Test Results). However, instrument accuracy is ±/- of the maximum viscosity range and not the standard 1%.
APPENDIX D - Laboratory Stands Model A Laboratory Stand This Lab Stand is provided with all standard Dial Reading Viscometers. 1 UP/DOWN KNOB VISCOMETER HEAD CLAMP KNOB BROOKFIELD LABORATORY VISCOMETER TENSION SCREW 5 2 4 3 ITEM 1 2 3 4 5 PART # VS-CRA-14A VS-1 VS-3 VS-21 BLM-4E DESCRIPTION UPRIGHT ROD AND CLAMP ASSEMBLY BASE LEVELING SCREW JAM NUT ROD EXTENSION - 4” LONG * QTY. 1 1 3 1 OPTIONAL *for use with Thermosel and Water Baths Figure D-1 Brookfield Engineering Laboratories, Inc.
Unpacking Check to see that all the components are received with no concealed damage: 1 VS-1 Base with three leveling screws 1 VS-CRA-14S rod and clamp assembly with one mounting screw and washer. Assembly 1. Remove the mounting screw and washer from the upright rod. Place the rod and clamp assembly into the hole in the top of the base. 2. Position the rod and clamp assembly so that the clamp assembly has the “FRONT” marking facing forward. 3.
ANALOG DIAL VISCOMETER WITH MODEL A LAB STAND OVERALL DIMENSIONS 9 [22.8 cm] 12 11/64 [30.9 cm] ANALOG DIAL VISCOMETER 5 5/8 [14.3 cm] 6 1/32 [15.3 cm] 13 5/64 [33.2 cm] B-20Y LV GUARD LEG ASSEMBLY 1 1/4 [3.2 cm] Brookfield Engineering Laboratories, Inc. 16 17/64 [41.3 cm] 7 21/64 [18.6 cm] Page 25 Manual No.
Model A-E Laboratory Stand This Lab Stand is provided only with the Explosion-Proof Dial Reading Viscometer. (Tension Screw) o n j (VISCOMETER) m l k p q r Item 1 2 3 4 5 Part Number Description VS-17SY/VS-34 VS-1Y N/A VS-41Y 505252024E140 Rod and Clamp Assembly Base, Model A (includes 3 VS-3 leveling screws) 14” Upright Rod Knob Assembly Screw, 1/4-20x3/4 Hex Socket 18-855 Brookfield Engineering Laboratories, Inc. Qty.
Unpacking Check carefully to see that all the components are received with no concealed damage. (1) VS-17SY Rod and Clamp Assembly j (1) VS-1Y Base k (includes pqr) (1) Hex socket wrench (includes lmno) assembly/mounting the viscometer 1. Remove the mounting screw and washer from the upright rod. Place the rod and clamp assembly into the hole in the top of the base. 3. While holding the rod and base together, insert the screw and washer as shown and tighten securely. 4.
ANALOG X-PROOF VISCOMETER WITH MODEL A-E LAB STAND OVERALL DIMENSIONS APPENDIX E - The Brookfield Guardleg E0608 Brookfield Engineering Laboratories, Inc. Page 28 Manual No.
APPENDIX E - The Brookfield Guardleg The guard leg was originally designed to protect the spindle during use. The first applications of the Brookfield Viscometer included hand held operation while measuring fluids in a 55-gallon drum. It is clear that under those conditions the potential for damage to the spindle was great. Original construction included a sleeve that protected the spindle from side impact.
should be known that this type of torque reading will not convert into a correct centipoise value when using a Brookfield factor if the boundary conditions are not those specified by Brookfield. The guard leg is a part of the calibration check of the Brookfield LV and RV series Viscometer/Rheometer. Our customers should be aware of its existence, its purpose and the effect that it may have on data.
APPENDIX F - Fault Diagnosis and Troubleshooting Listed are some of the more common problems that you may encounter while using your Viscometer. Review these items before you contact Brookfield. Spindle Does Not Rotate ❏ Make sure the universal power supply is plugged in. ❏ Make sure the universal power supply connector is attached to the Viscometer. ❏ Make sure the power switch is in the ON position. ❏ Make sure the speed set knob is set properly and securely at the desired speed.
Inaccurate Readings ❏ Verify spindle, speed and model ❏ Verify test parameters: temperature, container, volume, method. Refer to: • Dial Viscometer Operating Manual; Section II.4 — Considerations for Making Measurements • Dial Viscometer Operating Manual; Appendix A — Viscosity Ranges • Dial Viscometer Operating Manual; Appendix B — Variables in Viscosity Measurement ❏ Perform a calibration check. Follow the instructions in Appendix C. • Verify tolerances are calculated correctly.
Appendix G - Online Help and Additional Resources www.brookfieldengineering.com** The Brookfield website is a good resource for additional and self-help whenever you need it. Our website offers a selection of “how-to” videos, application notes, conversion tables, instructional manuals, material safety data sheets, calibration templates and other technical resources. http://www.youtube.com/user/BrookfieldEng Brookfield has its own YouTube channel.
APPENDIX H - Warranty Repair and Service Brookfield Dial Viscometers are guaranteed for two year from date of purchase against defects in materials and workmanship. They are certified against primary viscosity standards traceable to the National Institute of Standards and Technology (NIST). The Viscometer must be returned to Brookfield Engineering Laboratories, Inc. or the Brookfield dealer from whom it was purchased for no charge warranty service. Transportation is at the purchaser’s expense.
Brookfield Engineering Laboratories, Inc. MODEL Page 35 SPINDLE RPM DIAL READING % TORQUE BY: DATE: FACTOR VISCOSITY SHEAR cP RATE TEMP °C FOR: TIME NOTES BROOKFIELD ENGINEERING LABORATORIES, INC. • 11 Commerce Blvd. • Middleboro, MA 02346 • TEL: 508-946-6200 or 800-628-8139 FAX: 508-946-6262 • www.brookfieldengineering.com • VTR1207 CONCLUSIONS: SAMPLE TEST INFORMATION: VISCOSITY TEST REPORT This tear-off sheet is a typical example of recorded test data.
