Brookfield DV2T Viscometer User Manual

Page 33

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Brookfield Engineering Labs., Inc.

Page 33

Manual No. M13-167-B0614

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.

Temperature

is the input value from a connected Brookfield temperature probe. The

DV2T is provided with a DVP-94Y probe that can be inserted into the test sample or

a water bath. The Cone/Plate version of the DV2T can be utilized with a sample cup

that includes an embedded temperature probe. Some Brookfield accessories include

temperature probes (Thermosel) or optional chambers with embedded temperature

probes (Small Sample Adapter). The units of temperature are defined in the Global

Settings section of the Settings Menu

.

The temperature display will be ---- when no temperature probe is connected.

Speed

is the selected speed from the Configure Viscosity Test screen.

TIP: Speed can be changed by switching the Running Viscosity Test screen to

the View Test screen using the command key at the bottom of the screen.

TIP: When Speed is changed in the View Test screen, the Test Name will be

changed to unsaved.

The status of the test configuration is indicated in the grey bar above the data fields. A

configuration that has been saved will be indicated by a display of the test file name. A

configuration that is not saved will be indicated by a display of Unsaved Test.

The Trend Indicator Bar is displayed at the bottom of the Running Viscosity Test screen.

The Trend Indicator Bar shows the direction and magnitude of change in the measured

parameter. This bar can represent either the measured Viscosity or the measured Torque.

To change the displayed parameter, touch the data field. In Figure III-7, Torque is shown

in the Trend Indicator Bar. This is represented by a blue circle beside the torque value in

the data field. When QC Limits are selected to be either Torque or Viscosity, the limits will

be indicated on the Trend Indicator Bar (see Section III.7).

Two Command Keys are available on the Running Viscosity Test screen: View Test and

Stop Test.

Stop Test

: Immediately stops the current test. The user will be presented with a

confirmation box. The test will continue to run until Yes is selected in the

Confirmation box. If any data had been collected during the test, the user

will be presented with the Results screen (see Section III.9). If data was not

collected, the user will be returned to the Configure Viscosity Test screen.

TIP: If the operator selects “Do not show this message again” within the

Confirmation box, then the Confirmation box will no longer be displayed

when Stop Test is pressed. This condition can be reset in the Display
section of User Settings

.

View Test

: Change the view from measurement to test parameters including:

Spindle, Speed, Temperature, End Condition, Data Collection, QC Limits,

Instructions, and Density. The View Test screen includes a live display

of Torque and a Time parameter that shows the total elapsed time for the

test (see Figure III-10).

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