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Brookfield DV3T Rheometer User Manual

Page 20

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Brookfield Engineering Labs., Inc.

Page 20

Manual No. M13-2100

The command Keys include Clear, Save and Run.

Clear: Clear all data that has been entered into the test parameters

and restore the values to the factory default.

Save: Save the current test.

Run:

Run the current test.

The test parameter area includes many elements of the yield test as well as live measurement of

temperature. Temperature data will only be displayed if a Brookfield temperature probe is connected

to the DV3T Rheometer.

Spindle:

The currently selected spindle. All Yield and Stress calculations

will be made based on the Spindle selection and the Immersion

Mark. Spindle choice is limited to vane spindles or user defined

custom spindles.

Immersion Mark: Specify the immersion location of the Brookfield vane spindle.

Primary is at the immersion mark shown on the spindle shaft.

Secondary is at the mid-point of the vane surface (see Section

IV.5).

Pre-Shear Speed: Specify a sped of rotation for pre-shear of the sample

Pre-Shear Time:

Specify the duration of the Pre-Shear step.

Zero Speed:

Specify the speed of rotation used to return the %Torque reading

to zero before starting the yield measurement.

Wait Time:

Specify the duration of a rest period prior to starting the yield test.

Run Speed:

Specify the speed of the yield test.

Torque Reduction: Specify the end point of the test. Normally set to 100%.

Temperature:

A live signal from the rheometer when a temperature probe

is attached (Brookfield Part No. DVP-94Y). Also shown

is the set point used to control the attached temperature

controller (Brookfield Thermosel or TC-XX0SD / TC-XX0AP

Temperature Baths).

Yield Limit:

Define the limits for acceptable measurement data.

Instructions:

Create a message that the user will see when the test begins.

Save Path:

Define the memory location where the data will be saved.