BROOKFIELD CAP 2000+ Viscometer Operating Instructions Manual No. M02-313-G0812 SPECIALISTS IN THE MEASUREMENT AND CONTROL OF VISCOSITY with offices in: Boston • Chicago • London • Stuttgart • Guangzhou BROOKFIELD ENGINEERING LABORATORIES, INC. 11 Commerce Boulevard, Middleboro, MA 02346 USA TEL 508-946-6200 or 800-628-8139 (USA e xcluding MA) FAX 508-946-6262 INTERNET http://www.brookfieldengineering.com Brookfield Engineering Labs., Inc. Page 1 Manual No.
Table of Contents I. INTRODUCTION................................................................................................................................... 5 I.1 Components......................................................................................................................................................................5 I.2 Utilities......................................................................................................................................................
I. INTRODUCTION The CAP 2000+ Series Viscometers are medium to high shear rate instruments with Cone Plate geometry and integrated temperature control of the test sample material. Rotational speed selection ranges from 5 to 1000 RPM. Viscosity measurement ranges depend upon the cone spindle and the rotational speed (shear rate). Viscosity is selectively displayed in units of centipoise (cP), poise (P), milliPascal seconds (mPa•s) or Pascal seconds (Pa•s).
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 or your local dealer immediately. Any shipping damage must be reported to the carrier. Save the packing container, if possible, for future use when returning the viscometer to Brookfield or an authorized dealer for service.
I.3 Specifications Torque Range: Low 797-7,970 dyne•cm (designated on serial tag as 1/23 CAP) High 18,100-181,000 dyne•cm (designated on serial tag as CAP) Speeds: Temperatures: Variable speed from 5-1000 RPM CAP 2000+L 5°C (or 15°C below ambient, whichever is higher) to 75°C CAP 2000+H 50°C to 235°C All models provide 0.1°C increments Weight: Gross Weight Net Weight Carton Volume Carton Dimensions 36 lb 16.3 kg 27 lb 12.3 kg 4.9 cu ft 0.15 m3 18 in. L x 18 in.
I.4 Dimensional Details Brookfield Engineering Labs., Inc. Page 8 Manual No.
I.5 Installation DO NOT lift the viscometer by the handle or head! LIFT only by the base console or column! 1) Set the viscometer on a clean level bench surface. 2) Remove shipping foam insert (P/N CAP-122) from the plate area on the CAP Viscometer. Store the foam insert for future use when shipping or transporting CAP Viscometer.
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. Caution: HOT surface. Refer to the manual for specific warning or caution information to avoid personal injury or damage to the instrument. Safety Overview If this instrument is used in a manner not specified by the manufacturer, the protection provided by the instrument may be impaired.
HOLD TIME This key selects time entry mode (wait time before spindle rotates). SPINDLE This key selects the cone spindle entry mode. TEMP This key selects the temperature entry mode. I.8 Viscosity and Temperature Display Viscosity is displayed in either P=Poise or cP=Centipoise (CGS system) or Pa•s=Pascal seconds or mPa•s=milliPascal seconds (SI system). If the viscosity measurement is over range, “EEEE” will be displayed.
II. GETTING STARTED II.1 Power On Turn the power ON using the switch located on the rear of the base console. The start-up screen will be displayed for four seconds and will indicate the viscometer model, version number and torque range. BROOKFIELD CAP 2000+ VISCOMETER VERSION 1.10 1.0 CAP BROOKFIELD CAP 2000+ VISCOMETER VERSION 1.10 22.
II.2 Cone Spindle Selection and Setting Raise the viscometer handle to its highest position. The CAP cones have viscosity ranges as shown in Tables III-1 and III-2. After selecting the appropriate cone for the viscosity range to be utilized, carefully attach the cone to the viscometer as shown in Figure II-3. Be sure to insert the spindle completely into the adapter sleeve; align the flat (see Figure I-1) on the spindle with the thumb screw and then tighten.
Spindle 04 CALIBRATE? YES/NO Figure II-4 If you are using the CAP Viscometer for the first time or have just received the instrument back from being serviced, press YES and see Section III. Cones supplied at the time of order are calibrated to the viscometer by Brookfield prior to shipment, but should still be verified with a calibration check prior to use for the first time. Cones purchased separately at a later time by the user must also be calibrated prior to making viscosity measurements.
II.4 Temperature Control Setting Press the TEMP key and the current temperature setting will blink. The default temperature on start-up is 25.0°C on low temperature models and 50.0°C on high temperature models. The temperature ranges are: Low temperature: 5°C (or 15°C below ambient, whichever is higher) to 75°C High temperature: 50°C to 235°C Use the number keys to type in the required set point. The temperature can be set in increments of 0.1°C.
Note: With a run time of zero, the hold time will not be used The time required for reading stabilization will depend on the speed of rotation and the nature of the test sample. Longer runs times are recommended at lower speeds. Speed 50-1000 RPM 20-50 RPM 5-20 RPM Run 12 seconds 20 seconds 30 seconds II.7 Printing Pressing the PRINT key at any time sends information on test parameters to the printer port.
2. 3. Pressing and holding the STOP/ESCAPE key during power up selects the special functions mode where the viscosity display units and speed of rotation may be changed. (Section II.1) Pressing and holding the STOP and PRINT keys simultaneously executes the printing of a new heading (Section II.7). II.9 Parameter Display The parameter display will appear, as shown in Figure II-6, immediately after the RUN key is pressed.
III. OPERATION The CAP 2000+ Viscometer rotates a precisely machined cone spindle over a temperature controlled plate shearing the test sample over a range of speeds from 5 to 1000 RPM. This provides a comprehensive capability to analyze materials for viscosity behavior as a function of both shear rate and temperature. Tests can be run in standalone mode or under PC control. This chapter explains how to use the CAP 2000+ toward these objectives. III.
Cone Number 01 02 03 04 05 06 07 08 09 10 Table III-2: Full Scale Range Viscosity for HIGH TORQUE CAP 2000+ Viscometer Cone Shear FSR Poise FSR Poise FSR Poise FSR Poise Constant Rate at at at at Range Constant 100 RPM 400 RPM 750 RPM 900 RPM 1875 13.33N 18.75 4.69 2.50 2.08 3750 13.33N 37.50 9.38 5.00 4.17 7500 13.33N 75.00 18.75 10.00 8.33 15000 3.33N 150.00 37.50 20.00 16.67 30000 3.33N 300.00 75.00 40.00 33.33 75000 3.33N 750.00 187.50 100.00 83.33 3150 2N 31.50 7.88 N/A* N/A* 12500 2N 125.00 31.
Table III-3: Accuracy for LOW TORQUE CAP 2000+ Viscometer Cone Number 01 02 03 04 05 06 07 08 09 10 ≤ 500 RPM 10-100% FSR ± 2% ± 2% ± 2% ± 2% ± 2% ± 2% ± 2% ± 2% ± 2% ± 2% Table III-4: Accuracy for HIGH TORQUE CAP 2000+ Viscometer Cone Number 01 02 03 04 05 06 07 08 09 10 ≤ 400 RPM 10-100% FSR ± 2% ± 2% ± 2% ± 2% ± 2% ± 2% ± 2% ± 2% ± 2% ± 2% 750 RPM 10-100% FSR ± 2% ± 2% ± 2% ± 3% ± 4% ± 5% N/A* N/A* N/A* ± 2% 900 RPM ≤ 50% FSR ± 2% ± 2% ± 2% ± 3% ± 4% ± 5% N/A* N/A* N/A* ± 2% 900 RPM > 50% FSR ± 4
III.3 Calibration Verification Accuracy of the CAP 2000+ Viscometer can be verified by performing a calibration verification. Go to www.brookfieldengineering.com to view a video on the procedure. The cones/spindles that were shipped with the viscometer were calibrated to the viscometer by Brookfield prior to shipment.
Figure III-1a Figure III-1b Figure III-1c Figure III-1d 4. Run a viscosity test and record the viscosity value when the reading has stabilized. 5. Compare the recorded viscosity to the actual value of the standard and verify that it falls within the accuracy limits stated in Tables III-3 and III-4. The allowable accuracy is calculated by adding 1% of the value for the viscosity standard fluid to the product of (% accuracy x FSR) for the spindle/speed in use.
Table III-5: Viscosity Standard Fluids for Calibration of CAP Spindles on LOW TORQUE CAP 2000+ Viscometer LOW TORQUE Cone CAP-S-01 CAP-S-02 CAP-S-03 CAP-S-04 CAP-S-05 CAP-S-06 CAP-S-07 CAP-S-08 CAP-S-09 CAP-S-10 LOW TEMP Fluid Part Number CAP0L CAP1L CAP2L CAP3L CAP4L CAP5L CAP1L CAP3L CAP5L CAP2L LOW TORQUE Nominal Value (cP) 57 89 177 354 708 1417 89 354 1417 177 Temp (°C) 25 25 25 25 25 25 25 25 25 25 Sample Size (micro liters) 67 38 24 124 67 32 1700 400 100 170 Cone CAP-S-01 CAP-S-02 CAP-S-03 CAP-
Note: A cone calibration should be performed when: 1) using a new cone for the first time, 2) switching between two cones of the same number and 3) verification of calibration provides data outside of the acceptable range. Refer to Tables III-5 and III-6 to choose the calibration fluid for the spindle being calibrated. 1. Turn on the CAP 2000+ Viscometer. 2. Attach solvent trap to coupling shaft. 3. Attach spindle. 4.
Note: The calibration process may be cancelled at any time prior to pressing RUN by pressing the ESCAPE key. When calibration is complete, spindle rotation will stop and the “CALIBRATION COMPLETE” screen is displayed. (See Figure III-2). Press ENTER to continue. CALIBRATION COMPLETE PRESS ENTER TO CONTINUE If the viscometer is connected to a printer, the display will show “Press Print or Press Enter to continue”. Press the PRINT key and the printout (Figure III-3) will automatically be generated.
III.6 Making Viscosity Measurements The following procedure is recommended for making a viscosity measurement. With the viscometer on a clean, level surface, connect it to the proper power supply (Section I.4). 1. Turn the power switch ON (Section II.1). The procedure assumes that the following have been done: a) If the viscometer has been “off” for an extended period (i.e., overnight) a “warm up” period of 30 minutes is suggested. You may choose to warm up at the temperature of test.
Notes: a. b. c. Lower the handle gently. DO NOT FORCE THE CONE ONTO THE PLATE. The sample must completely cover the face of the cone and extend beyond the edge of the cone about 1.0 mm (see Figure III.3). Release the solvent trap placing it onto the plate over the cone so it does not touch the cone shaft. The user should ensure that the substances placed under test do not release poisonous, toxic or flammable gases at the temperatures to which they are subjected to during the testing. 7.
When advanced sample analysis is required, Brookfield CAPCALC application software can control the CAP 2000+ Viscometer from a PC. CAPCALC for Windows requires Windows Windows NT or higher. CAPCALC application software displays, prints and stores tabulated data files (Brookfield, Excel). CAPCALC software has automatic data capture (up to 200 data points per test) and graphical data display (rheograms) to facilitate analysis of test samples.
APPENDIX A - 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.
Viscometer Related Variables • Most fluid viscosities are found to be non-Newtonian. They are dependent on shear rate and the spindle geometry. The specifications of the Viscometer cone and plate geometry will affect the viscosity readings. For example, if one reading is taken at 750 rpm, and a second at 900 rpm, the two viscosity values may be different because the readings were made at different shear rates. The faster the spindle speed, the higher the shear rate.
APPENDIX B - Communications Printer Output - CAP 2000+ The cable connection on the CAP 2000+ Viscometer is a standard 25 pin parallel printer cable connector. RS 232 Output - CAP 2000+ When connecting the CAP 2000+ to a computer, use Brookfield Computer Cable (Part No. DVP-80). If you are not using the Brookfield computer cable, jump (connect) pins 4 and 9 (refer to Figure 1) on the CAP 2000 end of the serial cable.
CAP 2000+ TRANSMIT/RECEIVE COMMANDS FOR COMPUTER COMMUNICATION COMMAND RECEIVED Vyyy V Tttt T R R I ICAP+ Scc Saaaaaaeeeeeecc CAP 2000 RESPONSE Kccvvvvvveeeeee aaaaaayyy Invalid Command ??? Brookfield Engineering Labs., Inc. FUNCTION • Sets current speed and starts motor. • 000H <=yyy <=3E8H (t to 1000 RPM). • Anything between 001H and 005H is interpreted as 5 RPM.
Note: All multiplication and division operations performed on any of the command values should be done while the values in question are in their decimal (base 10) form (i.e. before any conversion to hexadecimal). LEGEND Command Description Cone multiplier constant (hexadecimal). All cone multiplier constant values are six characters padded with leading zeros.
1 Bit 2 is set in response to an R command (request for information) only. 2 If an input is received that is outside the allowable limits for a command, Bit 3 shall be set for the response to that command only. Once the response to the command has been sent to the host, Bit 3 shall be cleared again. 3 This bit is set in response to a calibration command if an error occurred in the respective operation Table 2 Example: 1.
APPENDIX C - 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 D - Packing Instructions to Return a Brookfield CAP Viscometer for Repair or Calibration Brookfield Engineering Labs., Inc. Page 36 Manual No.
APPENDIX E - Warranty Repair and Service Warranty Brookfield Viscometers are guaranteed for one 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 warranty service. Transportation is at the purchaser’s expense.
