Brookfield DV3T Rheometer - Manual (Page 38)

Brookfield Engineering Labs., Inc. Page 38 Manual No. M13-2100
III.10 Running a Test
A viscosity test is started by pressing the Run button on the Configure Viscosity Test screen. When
Run is pressed, the display will change to the Running Viscosity Test screen (see Figure III-14).
Real Time Graph
Command Keys
Status Bar
Title Bar
Test Name
Measurement Data
Figure III-14
The Running Viscosity Test screen provides information on the current measurement including:
Torque, Viscosity, Shear Stress, Shear Rate, Temperature and Speed.
Torque is the deflection of the Rheometer torque sensor. It is described as a percent (%) and has
a range of 0 – 100%. The DV3T will provide measurement results within the stated accuracy
provided the Torque reading is between 10 and 100%. If the Torque reading falls below 10% the
labels in the data fields will flash to indicate an error condition. Brookfield does not recommend
that data be collected below 10% Torque; however, data collection is not restricted.
TIP: Torque on the DV3T is equivalent to the dial reading from the Brookfield Dial Reading
Viscometer or the % reading from Brookfield Digital Viscometers (DV-E, DV-I,
DV-II, DV-III).
Viscosity is calculated from the measured Torque based on the selected spindle and speed of
rotation. The units of viscosity are defined in the Global Settings section of the Settings Menu
. If the Torque reading falls below 10%, the labels in the data fields will flash to indicate
an error condition.
Shear Stress is calculated from the measured Torque based on the selected spindle. The units of
shear stress are defined in the Global Settings section of the Settings Menu
. If the Torque
reading falls below 10%, the labels in the data fields will flash to indicate an error condition.
TIP: Shear Stress will be displayed as zero for spindles that do not have SRC values.
Shear Rate is calculated from the selected speed based on the selected spindle.
TIP: Shear Rate will be displayed as zero for spindles that do not have SRC values.