Brookfield DV-III ULTRA Operating Instructions Manual Download Page 121

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Brookfield Engineering Laboratories, Inc.

Page 121

Manual No. M/98-211-B0104

Brookfield Engineering Laboratories, Inc.

Page 121

Manual No. M98-211-E0912

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. With

this knowledge, the viscometer user may make modifications to the recommended method of operation

to suit their needs.

B-21KY

Guard Leg

B-20KY

Guard Leg

5 7/8

5 5/32

For RV Torque

For LV Torque

3 3/16

1 7/16

Figure F-1

Summary of Contents for DV-III ULTRA

Page 1: ...ons Manual No M98 211 E0912 SPECIALISTS IN THE MEASUREMENT AND CONTROL OFVISCOSITY TEL 508 946 6200 FAX 508 946 6262 or 800 628 8139 USA excluding MA INTERNET http www brookfieldengineering com BROOKF...

Page 2: ...Brookfield Engineering Laboratories Inc Page 2 Manual No M 98 211 B0104 Brookfield Engineering Laboratories Inc Page 2 Manual No M98 211 E0912...

Page 3: ...ty and Yeild Measurements 27 III 1 Quick Start 27 III 2 Preparations for Making Measurements 28 III 3 Selecting a Spindle Speed 30 III 4 Multiple Data Points 30 IV Programming the DV III Ultra and Dat...

Page 4: ...Set Up 77 V 2 Print 77 V 3 Alarm 78 V 4 Set Temperature 79 V 5 Data 79 V 6 Timed Data Collection 81 Appendix A Cone Plate Rheometer Set Up 83 A 1 Electronic Gap Setting Features 83 A 2 Set Up 84 A 3...

Page 5: ...IIIUltracanalsomeasureyieldstress inPascalsorPa SeeSectionI 3formoreinformation on yield stress I 1 Torque Measurement There are four basic spring torque models offered by Brookfield Spring Torque Mo...

Page 6: ...ing provides enough stress so that the paint flows easily and smoothly over a painted wall However a thin layer of applied paint if a good one that is allowed to rest undisturbedonthesurface regainsit...

Page 7: ...versions a spindle wrench one cone spindle and sample cup Part No CPE 44Y replace the spindle set Power Cord for 115 VAC DVP 65 for 230 VAC DVP 66 RTD Temperature Probe DVP 94Y Ribbon Cable DVP 145 G...

Page 8: ...Brookfield Engineering Laboratories Inc Page 8 Manual No M 98 211 B0104 Brookfield Engineering Laboratories Inc Page 8 Manual No M98 211 E0912 I 5 Dimensional Information...

Page 9: ...01 to 0 99 RPM for viscosity tests 0 1 RPM increments from 1 0 to 250 RPM Speed Ranges Pre Shear 0 01 to 200 rpm for yield tests Zero 0 01 to 0 5 rpm Yield Test 0 01 to 5 rpm Time Intervals 100 msec...

Page 10: ...hing the spindle it is not necessary to lift the coupling where the spindle connects to the instrument 3 The Oscillation Check explained in theAppendix J Fault Diagnosis and Troubleshooting does not p...

Page 11: ...ronment In case of emergency turn off the instrument and then disconnect the electrical cord from the wall outlet The user should ensure that the substances placed under test do not release poisonous...

Page 12: ...d clamp assembly should face the rear of the base see Figure I 4 The upright rod item 1 is held in place with the jam nut item 4 which is attached from the bottom of the base Tighten this nut with a s...

Page 13: ...onnector on the DV III Ultra base see Figure I 6 5 Connect the RTD probe to the socket on the back side of the DV III Ultra Rheometer see Figure I 6 6 The Rheometer must be leveled before the instrume...

Page 14: ...e Probe Connector Power ON OFF Switch AC Fuse s AC Power Connector Connector Connector Parallel Printer Ribbon Cable Connector USB Cable Ribbon Cable Connector RS 232 Serial Printer Computer Analog Ou...

Page 15: ...e RS 232 serial port on the DV III Ultra base to Com Port 1 or Com Port 2 on the computer Both cables are supplied with the RHEOCALC software S PARALLEL PRINTER The CAP 86 cable is used to connect the...

Page 16: ...TAB ENTER YES NO SELECT DISP PRINT 1 7 8 9 4 5 6 3 2 0 SELECT SPDL PROG RUN MOTOR ON OFF ESCAPE PROG AUTO RANGE Figure I 7 MOTOR ON OFF ESCAPE MOTOR ON OFF ESCAPE Turns the motor on or off Cancels any...

Page 17: ...enu ENTER ENTER Functions as an ENTER key similar to a computer by serving to accept a keyboard entry I 13 Cleaning Make sure the instrument is in a decent working environment dust free moderate tempe...

Page 18: ...V1 0 HA STANDALONE Figure II 1 No key press is necessary After a short pause the display will read REMOVE SPINDLE LEVEL RHEOMETER AND PRESS THE MOTOR ON OFF KEY TO AUTOZERO Before beginning the autoz...

Page 19: ...ttached temperature probe If no probe is connected four dashes will be displayed 4 Printing Status Indicates the currently selected method of printing 5 Measured Data Instrument Torque Viscosity cP Sh...

Page 20: ...ure T 99 9 T 300 0 10 3 Time Z XX XX 00 00 Z 99 59 05 32 Table II 1 S Out of Range Indicators The DV III Ultra is capable of measuring instrument torque within the range of 0 to 100 Based onthismeasur...

Page 21: ...To enter a spindle number press the numeric keys until the desired spindle number has been entered Valid spindle numbers encompass the range from 00 to 99 as listed in Appendix D Mistakes are correct...

Page 22: ...re II 12 The spindle number and name will be flashing Use the 2 key for scrolling downward and the 8 key for scrolling upward The spindle name can be changed to any 2 letters from A to Z Use the tab k...

Page 23: ...fy the second spindle you will need to proceed through the third spindle parameters by pressing Enter until prompted to Save New Spindle This will then save the modified spindle II 4 Direct Speed Entr...

Page 24: ...h RHEOCALC To configure the external control mode connect computer interface cable DVP 80 RS 232 or DVP 202 USB to the port on the DV III Ultra base before turning on the DV III Ultra With the DVP 80...

Page 25: ...he way of normal activity Be sure that the unit is properly leveled for all measurements Section I 10 Step 6 Periodically check the Tension Screw on the Clamp Assembly of the Upright Rod Assembly Appe...

Page 26: ...sample cups should be handled carefully to prevent scratches or nicks Do not use abrasive cleaners or cloths Store all spindles in the protective case in which they were supplied Do not store spindle...

Page 27: ...I 4 G Record torque and viscosity Yield Measurement The DV III Ultra Rheometer uses the same methodology for yield measurement as the Brookfield YR 1 Rheometer If you have experience with the YR 1 thi...

Page 28: ...designed to be used with a 600 ml low form Griffin beaker or equivalent container with a diameter of 8 25cm The same applies to the optional RV1 HA HB1 and Vane spindles Many other spindle systems ar...

Page 29: ...les have a left handed thread The lower shaft should be secured and slightly lifted with one hand while screwing the spindle to the left The face of the spindle nut and the matching surface on the low...

Page 30: ...for more detail When viscosity and or yield stress data must be compared be sure to use the same test methodology namely the same instrument spindle speed container temperature and test time III 4 Mu...

Page 31: ...of time As an example we can instruct the DV III Ultra to rotate the spindle at 5 RPM for 30 seconds and then change speed to 10 RPM and wait 20 seconds with the following program Step 1 RPM 5 Time 00...

Page 32: ...creation editing and execution of DV III programs are described in the following sections There are two types of test programs 1 Next Speed Set where the test speeds are programmed and the operator m...

Page 33: ...NITE STEP TIMES PROG SPEED These programs when executed will automatically progress from step to step based on the time intervals programmed by the user On pressing the 3 key in Figure IV 3 the user i...

Page 34: ...five 25 step program limit In either case the following screen will be displayed PROGRAM 3 COMPLETE 1 ENTER EDIT A PGM 2 CLEAR SPEED SET 3 USE SPEED SET Figure IV 6 To use the currently selected spee...

Page 35: ...ished entering a program In either case the user is presented with REVIEW SPEED SET 3 STEP 01 OF 03 STEP RPM 10 0 STEP TIME 00 05 Figure IV 9 Operation in this mode is exactly the same as for entering...

Page 36: ...can be retained in memory the user may eventually use all the available speed set slots The user may also have programmed speed sets that are no longer required and would like to remove Assume that th...

Page 37: ...2 for use in the ensuing data gathering operations To initiate the use of this speed set with finite step times or with zero step times the user presses the PROG RUN key and is presented with a start...

Page 38: ...be returned to the display of Figure IV 15 From Figure IV 15 the user runs the program by pressing the PROGRAM RUN key which signifies that the user is satisfied with his start and stop step values an...

Page 39: ...d to SPDL and the two letter combo LK is being used to indicatethe LOCKOUT condition PleasenotethatwhileTORQUEispresentlybeingdisplayed there is nothing to prevent the user from pressing the SELECT DI...

Page 40: ...e zero time interval mode is reflected in the message being displayedonlinethreeofthedisplaywherePROGhasreplacedENTERindicatingthattheprogram will be executed step by step without user intervention He...

Page 41: ...e IV 26 below RPM 120 SPINDLE 31 TEMP 72 1 C PRTO SET 2 04 08 05 PROG TORQUE 72 8 Figure IV 26 If the speed set contained no time interval the selection of a subset of speeds would result in a screen...

Page 42: ...tor to control the DV III Ultra through the variables of speed temperature and time while providing for independent data collection Programs can include up to 25 commands with a maximum data count of...

Page 43: ...ng the time since the last data print is printed as soon as a key is pressed SSN Speed value The DV III Ultra begins rotating at the specified speed This can be any RPM of the speeds listed in the Spe...

Page 44: ...he command into the highlightedlineofthegrid Thissameinsertiontaskcanalsobe accomplished by double clicking on the appropriate command in the list box to the right Beforebeingpermittedtoinsertanotherc...

Page 45: ...ram grid Double clicking on a line in this list box also inserts the command into the grid The icons to the left of the command descriptions indicate the type of command A command to wait for a condit...

Page 46: ...Parameter Comments PLN Print text now Preshearing now print user message SSN Set viscometer speed 50 0 run at 50 RPM WPT Wait for torque 90 0 wait until 90 torque is reached PLN Print text now Collect...

Page 47: ...ue 0 0 wait for spindle to completely unwind to 0 torque Program 5 Variable speed Command Command Description Parameter Comments SSN Set viscometer speed 50 run at 50 RPM WTI Wait for time interval 00...

Page 48: ...is presented with SELECT A PROGRAM AVAILABLE 56789 IN MEMORY 01234 CURRENT 3 Figure IV 33 The user is informed that the current or last used program is no 3 that programs 0 1 2 3 and 4 are available...

Page 49: ...en shown next RPM 0 0 SPINDLE 31 TEMP 72 1 C PRTN BEVIS PROG RUNNING TORQUE 00 0 Figure IV 38 The user now sees viscosity data and can use the SELECT DISPLAY key to view other viscosity measurement pa...

Page 50: ...se of viscosity measurement a non Newtonian fluid will produce a curve when test data is plotted on a shear stress vs shear rate graph The math model will force the data into a straight line and descr...

Page 51: ...ular model will be displayed as follows CASSON STANDARD cP PLASTIC VISC 3069 YIELD STRESS 140 1 CONF OF FIT 97 5 Figure IV 42 This screen for the Standard CASSON Model is typical for all five 5 of the...

Page 52: ...Viscosity cP or mPa s Yield Stress Dynes cm2 or N m2 Confidence of Fit The Standard Casson method is a direct implementation of the original Casson equation 2 NCA CMA Casson Chocolate ThisCassonmethod...

Page 53: ...tency Index cP or mPa s Confidence of Fit 5 IPC Paste Analysis This method is intended to calculate the Shear Sensitivity Factor and the 10 RPM Viscosity value of pastes A prime example of its use is...

Page 54: ...ws 2000 NT XP Vista and Windows 7 operating systems for flexible operation 32 bit operation for rapid performance Easy to use structured command language to make viscosity tests easier to program Disp...

Page 55: ...Brookfield Engineering Laboratories Inc Page 55 Manual No M98 211 E0912 Figure IV 44 Test Screen Figure IV 45 Run Data Screen...

Page 56: ...Brookfield Engineering Laboratories Inc Page 56 Manual No M 98 211 B0104 Brookfield Engineering Laboratories Inc Page 56 Manual No M98 211 E0912 Figure IV 46 Setup Screen Figure IV 47 Analysis Screen...

Page 57: ...have linear shear stress vs shear rate behavior and n describes the degree of non Newtonian flow the flow index essentially indicates how non linear a material is Figure IV 48 When n 1 the product is...

Page 58: ...d as a result it will appear to customers to be rich and creamy while still being easy to apply Shampoo Flow Index n 0 08 Consistency Index k 91071 cP IV 7 2 The Herschel Bulkley Model t shear stress...

Page 59: ...Bingham fluid which is discussed next An Example of the Herschel Bulkley Model at Work A company uses a gel like substance as part of their production process Upon arrival theytestthematerialandapply...

Page 60: ...ate flow It also provides the plastic viscosity h which is the viscosity after a product yields Figure IV 50 When should you use it This model should be used with non Newtonian materials that have a y...

Page 61: ...use of the problem was identified Drilling Fluid Plastic Viscosity h 6621 cP Yield Stress t o 166 4 dynes cm2 IV 7 4 The Casson Model t t o hD t shear stress t o yield stress h plastic viscosity and D...

Page 62: ...ull viscosity profile and apply the Casson model From the results shown in Figure VI 4 they learn that theirointmenthasahigheryieldstress t o and lower plastic viscosity h than they originally intende...

Page 63: ...ts Brookfield s HA spring range viscometer with a Small Sample Adapter SC4 27 spindle and SC4 13R sample chamber as the approved apparatus The IPC Paste Model h kRn The IPC Paste Model was developed f...

Page 64: ...Brookfield Engineering Laboratories Inc Page 64 Manual No M 98 211 B0104 Brookfield Engineering Laboratories Inc Page 64 Manual No M98 211 E0912 Figure IV 52 Figure IV 53...

Page 65: ...PC the main screen for creating yield test programs is in Figure IV 54 Figure IV 54 Use this page to create load save and print test parameters that are then downloaded into one of the memory locatio...

Page 66: ...endix A for more information regarding spindles for use with the DV III Ultra Rheometer Selection of the appropriate spindle code is important to ensure correct stress calculations Immersion Mark Each...

Page 67: ...meters If the Wait Time box is checked on the Test Parameters page of the EZ Yield software there will be a time delay after zeroing before the actual test run begins During this delay the motor shaft...

Page 68: ...by the EZ YieldTM software so the decrease in torque may be more easily visualized However this will also affect the calculated yield stress value Low and High Yield Limits These values in Pa can be u...

Page 69: ...gel 2 DB chocolate syrup 2 DB hair gel 3 DB chocolate syrup 3 DB hair gel 4 DB chocolate syrup 4 DB petroleum jelly 1 DB ketchup 1 DB petroleum jelly 2 DB ketchup 2 DB Figure IV 58 The Save File dialo...

Page 70: ...ys the first page of the report Previous Page Displays the previous page of the report Next Page Displays the next page of the report Last Page Displays the last page of the report Printer Setup Displ...

Page 71: ...eived Data are plotted as received while being displayed in the Data Results section of the Data page If the rheometer is running the test and no data appears see Appendix J Troubleshooting to help de...

Page 72: ...yed in the table Time Elapsed time since the beginning of the run cycle is shown here in units of hours minutes seconds and thousandths of seconds H MM SS SSS Data is taken at an interval equal to the...

Page 73: ...ge condition 4 Test Failed due to a User Limit violation 5 Test Failed due to a user cancellation See Section IV 8 6 3 Test Results for more information regarding these possible results Temperature Th...

Page 74: ...ime is displayed in seconds 2 Stress vs Apparent Strain This graph displays the calculated Stress values versus the calculated Apparent Strain values for each data point collected Stress is displayed...

Page 75: ...e Torque vs Time graph It displays Stress andApparent Strain of the position pointed to by the cursor for the Stress vs Strain graph Calibration Data This is a two 2 state button Turning this option O...

Page 76: ...to navigate to and select the desired data file to graph BEL gpk test DB syrup hair gel 1 DB chocolate syrup 1 DB syrup hair gel 2 DB chocolate syrup 2 DB hair gel 3 DB chocolate syrup 3 DB hair gel...

Page 77: ...reported as 44 38 Pa Figure IV 63 Hair Gel Sample IV 8 5 2 Example Application Hand Cream Hand cream is typically packaged in a small jar The small V 73 spindle did not provide enough torque signal l...

Page 78: ...a name brand ketchup was tested and compared to a store brand ketchup Visual examination of both products could distinguish no noticeable differences Both tests were run under exactly the same conditi...

Page 79: ...Brookfield Engineering Laboratories Inc Page 79 Manual No M98 211 E0912 Figure IV 65 Figure IV 66 Ketchup Comparison Samples...

Page 80: ...relatively low torque reading for the yield 10 then try using a faster speed or larger spindle to get a larger torque reading Alternatively a DV III Ultra Rheometer with a more sensitive spring could...

Page 81: ...test programs Once a test program has been downloaded from your PC to the DV III Ultra you will be able to run tests by following the instructions in this section S Yield Programs Menu Yield test oper...

Page 82: ...description of the pre test information sent to the printer The program number being run is recorded so that it will be the first program shown the next time the Yield Programs Menu see Figure IV 69 i...

Page 83: ...test The field after the word Time is the time in seconds that counts down from the user defined wait time 5 Sample Tst S 71 WAITING TIME 0010 Figure IV 74 Figure IV 75 is always displayed during the...

Page 84: ...IELD ERROR UNDER RANGE PRESS ESC OR ENTER Figure IV 80 Figure IV 81 is displayed when the yield test fails due to the resultant yield stress exceeding the user defined limits The actual yield stress m...

Page 85: ...d Post Test Output At the conclusion of the test one of the following six 6 messages is sent to both the parallel and serial RS 232 ports 1 Test test number test name Complete Yield Stress Pa 196 53 T...

Page 86: ...NOT READY ENSURE PRINTER IS ONLINE PRESS ANY KEY Figure IV 83 Pressing any key at this point returns the display to that of Figure IV 82 Pressing the ENTER key also records the program number being p...

Page 87: ...owing is sent to an attached printer Test 5 Sample Tst Complete Test Failed Under range The following screen is displayed 5 Sample Tst S 71 YIELD ERROR UNDER RANGE PRESS ESC OR ENTER Figure IV 85 Unde...

Page 88: ...tress Pa 196 53 Torque Yield 27 4 Temperature 250 5C Test Failed Yield Stress Below Low Limit High Limit Violation Test 5 Sample Tst Complete Yield Stress Pa 996 53 Torque Yield 78 6 Temperature 250 5...

Page 89: ...ndication means that there is no communication with a controller Selecting this option will make the DV III Ultra try to establish communication When communication is established off will be change to...

Page 90: ...ler uses the serial port 3 Enter the date and time to be shown on printed data tables Data is entered in the format of DD MM YY for date and HH MM for time 24 hour clock For example 2 30 pm on January...

Page 91: ...ESCAPE key The MOTOR OFF is tripped after the torque reading goes above the motor off setting The DV III Ultra stops rotating and the instrument beeps Pressing any key turns off the beep V 4 Set Tempe...

Page 92: ...N PRESS ONLINE A sample of printed output is shown in Figure V 4 Sample Name _____________________________________________________________ Operater Name ____________________________ Date 06 21 91 Time...

Page 93: ...torque value at a single speed Torque and speed are input using the number keys and OPTIONS TAB key The test will begin immediately upon the press of the ENTER key The test will end when the specifie...

Page 94: ...nd OPTIONS TAB key The test will begin immediately upon the press of the ENTER key Non averaged data will be displayed during the test The test will end when the specified time interval has elapsed Th...

Page 95: ...eoperatingtemperaturerangeis0 Cto100 C Becarefulaboutcondensation and the possible formationof ice crystals when approaching 0 C Settingthe gap should be accomplished at the same temperature that you...

Page 96: ...one or cup cannot be used with earlier DV III Ultra cone plate Viscometers below S N50969 which do not have the electronic gap setting feature 4 With the motor off thread the cone spindle by using the...

Page 97: ...turns on Back off rotate clockwise until the light is just breaking contact i e flickering 4 Adjust the sliding reference marker right or left to the closest full scale division mark see Figure A 6 5...

Page 98: ...for a given cone spindle speed combination Example LVDV III UltraViscometer Cone Spindle CPE 42 Brookfield Silicone Viscosity Standard having a viscosity of 9 7 cP at 25 C At 60 RPM the full scale vi...

Page 99: ...01 937 10 000 20 000 80 000 HA2 02 3 750 40 000 80 000 320 000 HA3 03 9 375 100 000 200 000 800 000 HA4 04 18 750 200 000 400 000 1 600 000 HA5 05 37 500 400 000 800 000 3 200 000 HA6 06 93 750 1 000...

Page 100: ...00 SC4 27 27 23 400 250 000 500 000 2 000 000 SC4 28 28 46 880 500 000 1 000 000 4 000 000 SC4 29 29 93 750 1 000 000 2 000 000 8 000 000 SC4 31 31 30 000 320 000 640 000 2 560 000 SC4 34 34 60 000 64...

Page 101: ...dapter Spindle Shear Rate sec 1 Viscosity cP LVDV III Ultra RVDV III Ultra HADV III Ultra HBDV III Ultra 14 0 80 47 0 1 171 000 500 0 12 500 000 1 000 0 25 000 000 4 000 100 000 000 15 0 96 19 0 468 6...

Page 102: ...0 1 024 25 600 000 34 0 56 24 0 600 000 256 0 6 400 000 512 0 12 800 000 2 048 51 200 000 81 0 258 1 4 10 000 15 0 10 000 30 0 10 000 120 10 000 UL Adapter UL Spindle Shear Rate sec 1 Viscosity cP LVD...

Page 103: ...00 6 4 128 000 25 6 512 000 CP CPE CPA 51 0 768 2 4 47 990 25 6 512 000 51 2 1 024 000 205 0 4 096 000 CP CPE CPA 52 0 400 4 6 92 130 49 2 983 000 98 3 1 966 000 393 0 7 864 000 Theoretical low limit...

Page 104: ...the shearing force For rotational systems this means all fluid movement must be circumferential When the inertial forces on the fluid become too great the fluid can break into turbulent flow wherein t...

Page 105: ...different viscosity Time Independent Pseudoplastic A pseudoplastic material displays a decrease in viscosity with an increase in shear rate and is also known as shear thinning If you take Rheometer r...

Page 106: ...ecify the following 1 Test temperature 2 Sample container size or spindle chamber geometry 3 Sample volume 4 Rheometer model 5 Spindle used if using LVDV III Ultra 1 4 or RVDV III Ultra 1 7 attach the...

Page 107: ...The Spindle Multiplier Constant SMC used for viscosity calculations and the Shear Rate Constant SRC used for shear rate and shear stress calculations Note that where SRC 0 no shear rate shear stress...

Page 108: ...0 0 28 SC4 29 29 100 0 25 SC4 31 31 32 0 34 SC4 34 34 64 0 28 SC4 37 37 25 0 36 CP CPE CPA 40 40 0 327 7 5 CP CPE CPA 41 41 1 228 2 CP CPE CPA 42 42 0 64 3 8 CP CPE CPA 51 51 5 178 3 84 CP CPE CPA 52...

Page 109: ...0 5B The full scale viscosity range for any DV III Ultra model and spindle may be calculated using the equation Full Scale Viscosity Range cP TK SMC 10 000 ______ RPM Where TK DV III Ultra Torque Cons...

Page 110: ...fluid b The new full scale viscosity range is calculated for a selected RPM R1 100 n Y Where R1 The new full scale viscosity range n The viscosity in cP of the Newtonian fluid Y The Torque reading at...

Page 111: ...LE SPINDLE CODE YMC SMC VANE LENGTH INCHES CM VANE DIAMETER INCHES CM V 71 71 0 5 2 62 2 708 6 878 1 354 3 439 V 72 72 2 0 11 1 1 706 4 333 853 2 167 V 73 73 10 0 53 5 998 2 535 499 1 267 V 74 74 100...

Page 112: ...V 71 5xHB 40 20 200 V 72 5xHB 40 80 800 V 73 5xHB 40 400 4000 Calculations for Shear Stress in Yield Test The following equations can be used to calculate the shear stress values after each packet of...

Page 113: ...orque cal Spring windup angle revolutions cal Vcal x tcal 60000 Where cal Spring windup angle revolutions Vcal Calibration speed fixed at 0 1 rpm rpm tcal Calibration time milliseconds time for 0 to 1...

Page 114: ...or the increase from 1 to 2 Small Sample Adapter Thermosel Ul Adapter DIN Adapter Spiral Adapter For more help you can go to the website www brookfieldengineering com and download the video The accura...

Page 115: ...are not subject to change over time However exposure to outside contaminants through normal use requires replacement on an annual basis Contamination may occur by the introduction of solvent standard...

Page 116: ...ith the spindle should be immersed in the bath for a minimum of 1 hour stirring the fluid periodically prior to taking measurements 5 After 1 hour check the temperature of the viscosity standard fluid...

Page 117: ...ch the extension link coupling nut and free hanging spindle or directly attach the solid shaft spindle to the DV III Ultra d Allow 30 minutes for the viscosity standard sample chamber and spindle to r...

Page 118: ...st rotate at least five 5 times for one minute whichever is greater before readings are taken 7 The viscosity reading should equal the cP value on the viscosity fluid standard to within the combined a...

Page 119: ...onsult with Brookfield or an authorized dealer to determine which fluid is appropriate Interpretation of Calibration Test Results When verifying the calibration of the DV III Ultra the instrument and...

Page 120: ...accurately calculate an absolute viscosity Changing the boundary conditions does not change the viscosity of the fluid but it does change how the instrument torque is converted to centipoise Without...

Page 121: ...if the boundary conditions are not those specified by Brookfield TheguardlegisapartofthecalibrationcheckoftheBrookfieldLVandRVseriesViscometer Rheometer Our customers should be aware of its existence...

Page 122: ...WARD YOU DV III Ultra HEAD UNIT TENSION SCREW 2 1 3 4 5 Item Part Description Qty 1 VS CRA 14S 14 UPRIGHT ROD AND CLAMP ASSEMBLY 1 2 DVP 204BY STAND SUB ASSEMBLY DV III ULTRA 100 240Vac 1 3 502028071S...

Page 123: ...the hole into which the RTD probe is inserted When inserting the RTD probe into the Probe Clip the upper part of the Clip is compressed by squeezing the points shown in Figure H 1 R TD Probe Hole Sque...

Page 124: ...1 2 This is a 0 4 volt d c output where 0 volts corresponds to 100 C and 4 volts corresponds to 300 C with a resolution of 1 millivolt 0 1 C Data RxD Figure I 1 Analog Output The analog outputs for te...

Page 125: ...nting the torque zero offset as 4 hex digits Calculate the decimal equivalent of the zero offset as follows Zero offset tval 100 Where tval is the decimal equivalent of the received zero offset packet...

Page 126: ...d x x x x x x 1 x Control circuitry enabled x x x x x x x 1 Table I 3 Status Byte ss Definition Note These values are not updated in the status byte when the listed condition occurs They are made avai...

Page 127: ...eed The DV III Ultra responds to this command by repeating the command V elocity and appending the status byte ss which will amongst other things inform the calling program as to whether the motor was...

Page 128: ...total when measured from the bottom of the spindle rotating in air Check to see if the rheometer coupling appears bent if so the unit is in need of service see Appendix L for details on returning you...

Page 129: ...es not apply to instruments with ball bearing suspension See Section I 7 Display Reading Will Not Stabilize Special characteristic of sample fluid There is no problem with the rheometer Refer to Appen...

Page 130: ...OM port in use and click the PROPERTIES button or double click the COM port in use Click Port Settings then Advanced Ensure the check box labeled Use FIFO buffers requires 16550 compatible UART is che...

Page 131: ...wder testing Due to copyright restrictions these articles cannot be emailed Please request a hardcopy of articles by calling our customer service department or by emailing marketing brookfieldengineer...

Page 132: ...ld Engineering Laboratories Inc 11 Commerce Boulevard Middleboro MA 02346 U S A Telephone 508 946 6200 FAX 508 946 6262 www brookfieldengineering com For repair or service outside the United States co...

Page 133: ...ase photocopy and retain this tem plate so that additional copies may be made as needed BROOKFIELD ENGINEERING LABORATORIES INC 11 Commerce Blvd Middleboro MA 02346 T EL 508 946 6200 or 800 628 8139 F...

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