Brookfield DV-II+ Programmable Viscometer - Manual (Page 47)

Brookfield Engineering Labs., Inc. Page 47 Manual No. M/97-164-F1 102
DIN Adapter Accessory
Spiral Adapter
Cone/Plate Viscometer
Helipath with T-Bar Spindle
In taking viscosity measurements with the DV-II+ Viscometer there are two considerations which
pertain to the low viscosity limit of effective measurement.
1) Viscosity measurements should be accepted within the equivalent % Torque Range from
10% to 100% for any combination of spindle/speed rotation.
2) Viscosity measurements should be taken under laminar flow conditions, not under turbulent
flow conditions.
The first consideration has to do with the precision of the instrument. All DV-II+ Viscometers have a
full scale range precision of (+/-) 1% of any spindle/speed rotation. We discourage taking readings below
10% of range because the potential viscosity error of (+/-) 1% is a relatively high number compared to
the instrument reading.
Shear
Rate
DAA Spindle LVDV-II+ RVDV-II+ HADV-II+ HBDV-II+ sec-1
85 0.6 - 5,000 6.1 - 5,000 12.2 - 5,000 48.8 - 5,000 1.22N
86 1.8 - 10,000 18.2 - 10,000 36.5 - 10,000 146 - 10,000 1.29N
87 5.7 - 50,000 61 - 50,000 121 - 50,000 485 - 50,000 1.29N
Viscosity (cP)
Shear
Spiral Rate
Spindle LVDV-II+ RVDV-II+ HADV-II+ HBDV-II+ sec-1
SA-70 98 - 98,500 1,050-1,050,000 2,100-2,100,000 8,400 - 8,400,000 .00677 -
.67.7N
(1-100 RPM )
Viscosity (cP)
Viscosity (cP) Shear
Rate
Cone Spindle LVDV-II+ RVDV-II+ HADV-II+ HBDV-II+ sec-1
CPE-40 .15 - 3,065 1.7 - 32,700 3.3 - 65,400 13.1 - 261,000 7.5N
CPE-41 .58 - 11,510 6.2 - 122,800 12.3 - 245,600 49.1 - 982,400 2.0N
CPE-42 .3 - 6,000 3.2 - 64,000 6.4 - 128,000 25.6 - 512,000 3.84N
CPE-51 2.4 - 47,990 25.6 - 512,000 51.2 -1,024,000 205 - 4,096,000 3.84N
CPE-52 4.6 - 92,130 49.2 - 983,000 98.3 -1,966,000 393 - 7,864,000 2.0N
Viscosity (cP)
T-Bar
Spindle
LVDV-II+ RVDV-II+ HADV-II+ HBDV-II+
T-A 156 - 187,460 2,000 - 2,000,000 4,000 - 4,000,000 16,000 - 16,000,000
T-B 312 - 374,920 4,000 - 4,000,000 8,000 - 8,000,000 32,000 - 32,000,000
T-C 780 - 937,300 10,000 - 10,000,000 20,000 - 20,000,000 80,000 - 80,000,000
T-D 1,560 - 1,874,600 20,000 - 20,000,000 40,000 - 40,000,000 160,000 - 160,000,000
T-E 3,900 - 4,686,500 50,000 - 50,000,000 100,000 -100,000,000 400,000 - 400,000,000
T-F 7,800 - 9,373,000 100,000 -100,000,000 200,000 -200,000,000 800,000 - 800,000,000