Brookfield DV-II+ Programmable Viscometer Manuel d'utilisateur télécharger pdf (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)

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

1 2 ... 42 43 44 45 46 47 48 49 50 51 52 ... 74 75

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Brookfield DV-II+ Programmable Viscometer Manuel d'utilisateur Page 47

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