M21-400 REV.1.1 DVPLUS DIGITAL VISCOMETER - OPERATIONAL MANUAL
Vane Spindles
Spindle
Torque Range Shear Stress Range
(Pa)
Viscosity Range
cP(mPa•s)
V-71 NOT RECOMMENDED FOR USE ON LV TORQUE
V-72 LV 0.188-1.88 104.04-1.04K
V-73 LV 0.938-9.38 502-5.02K
V-74 LV 9.38-93.8 5.09K-50.9K
V-75 LV 3.75-37.5 1.996K-19.96K
V-71 RV 0.5-5 262-2.62K
V-72 RV 2-20 1.11K-11.1K
V-73 RV 10-100 5.35K-53.5K
V-74 RV 100-1K 54.3K-543K
V-75 RV 0-400 21.3K-213K
V-71 HA 1-10 524-5.24K
V-72 HA 4-40 2.22K-22.2K
V-73 HA 20-200 10.7K-107K
V-74 HA 200-2K 108.6K-1.086M
V-75 HA 80-800 42.6K-426K
V-71 HB 4-40 2.096K-20.96K
V-72 HB 16-160 8.88K-88.8K
V-73 HB 80-800 42.8K-428K
V-74 HB 800-8K 434.4K-4.344M
V-75 HB 320-3.2K 170.4K-1.704M
V-71 5xHB 20-200 10.48K-104.8K
V-72 5xHB 80-800 44.4K-444K
V-73 5xHB 400-4000 214K-2.14M
V-74 5xHB 4K-40K 2.172M-21.72M
V-75 5xHB 1.6K-16K 852K-8.52M
Note:
• 1 Pa = 10 dyne/cm
2
• Viscosity Range is given at a rotational speed of 10 RPM
• HB is the highest torque range available
M = 1 million cP = centiPoise
K = 1 thousand mPa•s = milliPascal•seconds
Pa = Pascal
Special Considerations
In taking viscosity measurements with the DVPlus Viscometer, there are two considerations that pertain to the low
viscosity limit of eective measurement:
1.
2.
Viscosity measurements should be accepted within the equivalent % Torque Range from 10% to
100% for any combination of spindle/speed rotation.
Viscosity measurements should be taken under laminar flow conditions, not under turbulent flow
conditions.
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