Brookfield Helipath with EZ-Lock - Manual (Page 4)

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Spindle Factors
(for Analog/Dial Viscometers)
Speed
(RPM)
LVT VISCOMETERS
SPINDLE NUMBER
T-A or 91 T-B or 92 T-C or 93 T-D or 94 T-E or 95 T-F or 96
12 15.6 31.2 78 156 390 780
6 31.2 62.4 156 312 780 1.56K
3 62.4 124.8 312 624 1.56K 3.12K
1.5 124.8 249.6 624 1.248K 3.12K 6.24K
0.6 312 624 1.56K 3.12K 7.8K 15.6K
0.3 624 1.248K 3.12K 6.24K 15.6K 31.2K
Speed
(RPM)
RVT VISCOMETERS
SPINDLE NUMBER
T-A or 91 T-B or 92 T-C or 93 T-D or 94 T-E or 95 T-F or 96
10 200 400 1K 2K 5K 10K
5 400 800 2K 4K 10K 20K
4 500 1K 2.5K 5K 12.5K 25K
2.5 800 1.6K 4K 8K 20K 40K
2 1K 2K 5K 10K 25K 50K
1 2K 4K 10K 20K 50K 100K
0.5 4K 8K 20K 40K 100K 200K
Speed
(RPM)
HAT VISCOMETERS
SPINDLE NUMBER
T-A or 91 T-B or 92 T-C or 93 T-D or 94 T-E or 95 T-F or 96
10 400 800 2K 4K 10K 20K
5 800 1.6K 4K 8K 20K 40K
2.5 1.6K 3.2K 8K 16K 40K 80K
1 4K 8K 20K 40K 100K 200K
0.5 8K 16K 40K 80K 200K 400K
Speed
(RPM)
HBT VISCOMETERS
SPINDLE NUMBER
T-A or 91 T-B or 92 T-C or 93 T-D or 94 T-E or 95 T-F or 96
10 1.6K 3.2K 8K 16K 40K 80K
5 3.2K 6.4K 16K 32K 80K 160K
2.5 6.4K 12.8K 32K 34K 160K 320K
1 16K 32K 80K 160K 400K 800K
0.5 32K 64K 160K 320K 800K 1.6M
K = 1000 M = 1,000,000
To calculate viscosity in centipoise (cP), multiply the dial reading by the factor corresponding to the
viscometer spindle and speed combination utilized. 1cP = 1mPa•s
Crossbar Length
Spindle Inches mm
T-A 1.894 (48.1)
T-B 1.435 (36.4)
T-C 1.065 (27.1)
T-D 0.804 (20.4)
T-E 0.604 (15.3)
T-F 0.430 (10.9)