BROOKFIELD YR-1 RHEOMETER Operating Instructions Manual ...

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III.3.7 Run SpeedThe speed at which the actual yield test is run. After any Pre-shear, Zero, and Wait time steps,the YR-1 motor shaft begins to turn at this speed. See Appendix B for a complete list of runspeeds.III.3.8 Base IncrementThis value is the time interval, in milliseconds, at which data is taken by the rheometer. This %torque data is used to determine when a yield point is reached. This value is automaticallycalculated by the EZ-Yield software and depends on the Run Speed selected. Although this valueis calculated, it can be altered if there is a compelling need to do so. If the Base Increment hasbeen manually altered for any reason, selecting a new Run Speed automatically resets the BaseIncrement to its optimum value.III.3.9 Torque ReductionThis parameter determines at what point the test ends. Generally, this value is set for 100%.A value of 100% causes the test to end when the delta torque (change in measured torque betweenconsecutive readings) becomes zero (0). In a typical yield test, the delta torque readings will besteady until the sample begins to yield, indicated by decreasing delta torque values. When thedelta torque drops to zero (0) (i.e. a change of 100% from the previous delta torque), the test iscomplete. Values greater than 100% will cause the test to continue after this “leveling off” pointis reached. This occurs when delta torque values decrease further by an amount commensuratewith the percentage the Torque Reduction was above 100% (Ex: a value of 110 waits for the“leveling off” at 100%, then continues until the additional decrease in delta torque is 10%).III.3.10 Low and High Yield LimitsThese values (in Pa) can be used as a Quality Control tool. If the resulting yield stress from a testfalls outside these limits, an appropriate message is displayed and printed with the results.Entering zero (0) for both these parameters disables this QC feature.III.4 Toolbar and Menu OptionsNote:All functions shown on the toolbar can also be accessed from the menu above thetoolbar.III.4.1 NewSelecting New (using the New button or the New option in the File menu) displays the TestParameters page with default values in each field. Use this function before creating a newtest program.Brookfield Engineering Labs., Inc. Page 18 Manual No. M/02-215
III.4.2 OpenSelecting Open (using the Open button or the Open option in the File menu) displays theOpen File dialog box.BEL gpk test.DB syruphair gel #1.DB chocolate syrup #1.DB syruphair gel #2.DBchocolate syrup #2.DBhair gel #3.DBchocolate syrup #3.DBhair gel #4.DBchocolate syrup #4.DBpetroleum jelly #1.DB ketchup #1.DBpetroleum jelly #2.DB ketchup #2.DBThe Open File dialog box automatically displays files of the type it thinks the user requires; i.e.if the Test Parameters page was displayed, the file types displayed are test parameter files(*.BYT) and if the Data or Graph pages were displayed, the file types displayed are data files(*.DB). Regardless of the file types initially displayed, either type of file can be loaded byselecting the desired type at the bottom of the Open File dialog using the Files of type drop downlist.III.4.3 SaveSelecting Save (using the Save button or the Save option in the File menu) displays the Save Filedialog box.BEL gpk test.DB syruphair gel #1.DB chocolate syrup #1.DB syruphair gel #2.DBchocolate syrup #2.DBhair gel #3.DBchocolate syrup #3.DBhair gel #4.DBchocolate syrup #4.DBpetroleum jelly #1.DB ketchup #1.DBpetroleum jelly #2.DB ketchup #2.DBThe Save File dialog box automatically displays files of the type it thinks the user requires(i.e. If the Test Parameters page was displayed, the file types displayed are test parameterfiles (*.BYT) and if the Data or Graph pages were displayed, the file types displayed aredata files.). Regardless of the file types initially displayed, either type of file can be saved byselecting the desired type at the bottom of the Save File dialog using the Files of type dropdown list.Brookfield Engineering Labs., Inc. Page 19 Manual No. M/02-215
Page 1: BROOKFIELD YR-1 RHEOMETEROperating
Page 9: Once the sample is prepared and the
Page 15 and 16: II.6.2.3 User-Defined Limit Conditi
Page 17: III.3 Test Parameter DescriptionIII
Page 21 and 22: Save ReportLoad ReportDisplays the
Page 23 and 24: III.5.1 Pre-shearingPre-shearing is
Page 25 and 26: Data is displayed on the right of t
Page 27 and 28: Double-clicking on either graph enl
Page 29 and 30: IV.EXAMPLESSome users may download
Page 31 and 32: APPENDIX A - Spindle and Model Code
Page 33 and 34: APPENDIX C - Calibration Procedures
Page 35 and 36: REMOVE SPINDLEPRESS ANY KEYFigure C
Page 37 and 38: APPENDIX D - CalculationsThe follow
Page 39 and 40: APPENDIX E - Communications1. Seria
Page 41 and 42: APPENDIX F - Model S Laboratory Sta
Page 43 and 44: APPENDIX G - DVE-50 Probe ClipProbe
Page 45 and 46: ❏ Inaccurate Readings✓ Verify s
Page 47 and 48: Press the ENTER key and Figure H2 a
Page 49 and 50: Packaging Instructions to Return a

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