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Brookfield DV-III Ultra Rheometer User Manual

Page 19

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Brookfield Engineering Laboratories, Inc.

Page 19

Manual No. M/98-211-B0104

Brookfield Engineering Laboratories, Inc.

Page 19

Manual No. M98-211-E0912

1. Motor Status and Current Rheometer Speed

The DV-III Ultra motor can be OFF, ON at 0.0 rpm or ON at a speed greater than 0.0 rpm.

When the motor is OFF, "OFF" will be displayed and no speed entry will be accepted. When

the motor is ON, the actual speed of rotation will be displayed. When the motor is switched

from ON to OFF, the speed of rotation will be remembered; when the motor is turned ON

again, the DV-III Ultra will operate at that same speed. The rheometer motor is set to "OFF"

after AUTOZERO.

Note:

Motor OFF and a speed setting of 0.0 are essentially the same.

2. Spindle Number

The currently-selected spindle. Viscosity, shear rate, and shear stress values will be calculated

based on this number. See Section II.3.

3. Measured Temperature

The current temperature as measured by the attached temperature probe. If no probe is

connected, four dashes "----" will be displayed.

4. Printing Status

Indicates the currently-selected method of printing.

5. Measured Data

Instrument Torque (%), Viscosity (cP), Shear Stress (D/cm2), Shear Rate (s

-1

)

The parameters are toggled from one to another using the Select Display key.

Note:

Shear Stress and Shear Rate data cannot be calculated for some spindle

geometries. In these cases, the display will show 0.0.

6. Blank Line

This line is used to display entry data when selecting a spindle or speed of rotation. Additionally,

selected programs available for running will be identified here when in the Program mode.

(See Section IV.2).

The default screen will appear at the completion of the AUTOZERO sequence each time the DV-III

Ultra is turned ON in the standalone mode (see Section II.5: External Control). The displayed data

may be changed as described in the following sections.

The format for data displayed in the default screen and all other screens is described in Table 11.1.

For appearance sake, the entries in the table have been decimal point aligned. Actual rheometer

display will have all fields left justified.