BROOKFIELD YR-1 RHEOMETER Operating Instructions Manual ...

APPENDIX A - Spindle and Model CodesEach spindle has a two (2) digit code which is selected via the EZ-Yield software. The codeallows the YR-1 to calculate Yield Stress.The immersion mark selected affects the stress calculations. Ensure the selected immersion markreflects the mark in use.Each spindle has a Yield Multiplier Constant (YMC) for stress calculations and a SpindleMultiplier Constant (SMC) for calibration checks as shown in Table A1. Spindle dimensions arealso listed.Spindle Vane Length Vane DiameterSpindle Code YMC SMC inches cm inches cmV-71 71 0.5 2.62 2.708 6.878 1.354 3.439V-72 72 2.0 11.1 1.706 4.333 .853 2.167V-73 73 10.0 53.5 .998 2.535 .499 1.267Table A1Note: If secondary immersion mark is selected, the YMC value is doubled.Table A2 lists the model codes and spring torque constants (TK) for each Rheometer model.Model Code OnModel Tk YR-1 ScreenRVYR-1 1 RVHBYR-1 8 HB5HBYR-1 40 5HBTable A2The full scale Yield Stress range for any YR-1 model and spindle may be calculated usingthe equation:Full Scale Yield Stress Range (Pa) = TK x YMC x 10where:TK = YR-1 Torque Constant from Table A2YMC = Yield Multiplier Constant from Table A1Brookfield Engineering Labs., Inc. Page 31 Manual No. M/02-215