Brookfield Spiral Adapter - Manual (Page 13)

Brookfield Engineering Labs., Inc. Page 13 Manual No. M93-270-D0812
APPENDIX A - Spiral Spindle Factors for Torque (% Scale) Measurements
Table A-1 applies to Brookfield Viscometer models with series designation LV, RV, HA, and HB.
The procedure for converting a torque value (% scale) into a viscosity value (cP) is accomplished
by multiplying the appropriate factor shown in Table A-1 by the torque reading on your Brookfield
Viscometer.
Spindle
Speeds
(RPM)
Spiral Spindle Factors
LV RV HA HB
0.3 3,280.0 35,000 70,000 280,000
0.5 1,968.0 21,000 42,000 168,000
0.6 1,640.0 17,500 35,000 140,000
1.0 984.0 10,500 21,000 84,000
1.5 656.0 7,000 14,000 56,000
2.0 492.0 5,250 10,500 42,000
2.5 394.0 4,200 8,400 33,600
3.0 328.0 3,500 7,000 28,000
4.0 246.0 2,625 5,250 21,000
5.0 197.0 2,100 4,200 16,800
6.0 164.0 1,750 3,500 14,000
10.0 98.4 1,050 2,100 8,400
12.0 82.0 875 1,750 7,000
20.0 49.2 525 1,050 4,200
30.0 32.8 350 700 2,800
50.0 19.7 210 420 1,680
60.0 16.4 175 350 1,400
100.0 9.8 105 210 840
Table A-1
The full scale viscosity measurement range (in cP or mPa•s) for any given speed is obtained by multiplying
the corresponding spiral spindle factor in the above table by 100.