Brookfield Engineering Labs., Inc.
Page 102
Manual No. M13-167-A0415
Table D-2 lists the model codes and spring torque constants for each Rheometer model.
Table D-2
MODEL
TK
MODEL CODE ON DV3T
SCREEN
DV3TLV
0.09375
LV
DV3TL3
0.234375
2.5LV
DV3TL5
0.46875
5LV
DV3TRQ
0.25
1/4 RV
DV3TRH
0.5
1/2 RV
DV3TRV
1
RV
DV3THA
2
HA
DV3TA2
4
2HA
DV3TA3
5
2.5HA
DV3THB
8
HB
DV3TB2
16
2HB
DV3TB3
20
2.5HB
DV3TB5
40
5HB
The full scale viscosity range for any DV3T model and spindle may be calculated using the equation:
Full Scale Viscosity Range [cP] = TK * SMC * 10,000
RPM
where:
TK = DV3T Torque Constant from Table D-2
SMC = Spindle Multiplier Constant from Table D-1
The Shear Rate calculation is:
(Shear Stress (D/cm
2
)) = Viscosity (P) * Shear Rate (1/sec)
= TK * SMC * SRC * TORQ