Brookfield Engineering Labs., Inc.
Page 50
Manual No. M13-167-A0415
in the Settings menu. Choose Temperature and you will be presented with the Temperature menu
(see Figure IV-3). Temperature Offset is described in Section IV.1.
Select Temperature Controller and you will be presented with the Default Temperature menu (see
Figure IV-4). This menu allows the user to 1) initiate communication with the temperature controller
and 2) set a default temperature.
Initiate temperature control by pressing the Test Connection. The connection status will be confirmed
with a message box.
The Default Temperature is the temperature value that the control device will return to at the
conclusion of the Test. This value is set only if the check box is checked. When the check box is
unchecked the temperature controller will hold at the last set point used in the Test.
TIP: When a test involves several temperature set points, set the Default Temperature to the first
set point used in the Test. This will reduce the transition time from one Test run to the next
Test run.
IV.5 Test Parameters
The Configure Yield Test screen includes several parameters to specify the test method; Spindle,
Immersion Mark, Pre-Shear Speed, Pre-Shear Time, Zero Speed, Wait Time, Run Speed, Torque
Reduction, and Temperature. The required parameters are Spindle, Immersion Mark, Run Speed
and Torque Reduction. All other parameters are optional including those shown below the More/
Less bar; Yield Limit, Instructions, Save Path.
Spindle
Spindle Number
A two (2) digit code representing the spindle number used for the test must be selected. See Appendix
A for more information regarding spindles for use with the DV3T Rheometer. Selection of the
appropriate spindle code is important to ensure correct stress calculations. Brookfield recommends
the use of vane spindles for yield measurements.
Immersion Mark
Each vane spindle has two (2) immersion marks. The primary immersion mark is located on the
spindle shaft. Normally, the spindle should be inserted so that the sample reaches this mark. If
the sample container is too small to allow the spindle to be inserted to this mark, the secondary
immersion mark may be used. This mark appears half way down the blades of the vane spindles.
See Appendix D for more information regarding spindles and immersion marks.
Primary
Immersion
Mark
Secondary
Immersion
Mark
Figure IV-5
Note:
Selection of the appropriate
immersion mark is important
to ensure correct stress
calculations.
