Brookfield DV-III Ultra Rheometer - Manual (Page 111)

Brookfield Engineering Laboratories, Inc. Page 111 Manual No. M/98-211-B0104
Brookfield Engineering Laboratories, Inc. Page 111 Manual No. M98-211-E0912
APPENDIX D2 - Spindle Codes and Speeds for Yield Tests
Each spindle has a two (2) digit code which is selected via the EZ-Yield TM software. The code
allows the DV-III Ultra to calculate Yield Stress.
The immersion mark selected affects the stress calculations. Ensure the selected immersion mark
reflects the mark in use.
Each spindle has a Yield Multiplier Constant (YMC) for stress calculations and a Spindle Multiplier
Constant (SMC) for calibration checks (see Appendix E) as shown in Table D-3. Spindle dimensions
are also listed.
Table D-3
SPINDLE
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 74 100.0 543 .463 1.176 .232 .589
V-75 75 40.0 213 .632 1.61 .316 .803
Note: If secondary immersion mark is selected, the YMC value is doubled.
The full scale Yield Stress range for any DV-III Ultra model and spindle may be calculated using
the equation:
Full Scale Yield Stress Range (Pa) = TK x YMC x 10
Where:
TK = DV-III Ultra Torque Constant from Table D-2
YMC = Yield Multiplier Constant from Table D-3
The following speeds are available for yield tests.
Table D-4
PRE-SHEAR SPEEDS (RPM)
RANGE INCREMENT
0.01 to 0.09 0.01
0.1 to 5.0 0.1
6, 10, 12, 20, 30, 50,
60, 100, 200
N/A
ZERO STEP SPEEDS (RPM)
RANGE INCREMENT
0.01 to 0.09 0.01
0.1 to 0.5 0.1
RUN SPEEDS (RPM)
RANGE INCREMENT
0.01 to 0.09 0.01
0.1 to 5.0 0.1