Owner manual
Brookfield Engineering Laboratories, Inc. Page 13 Manual No. M/98-211-A0701
II.2 Rheometer Display
The DV-III+ Rheometer is supplied with a 4-line display. The basic set of information is called "The
Default Screen" and is shown in FIGURE 7. The parameters are detailed below:
1
3
5
2
4
6
Figure 7
1. Motor Status and Current Rheometer Speed
The DV-III+ 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+ 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. See Section II.5.
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+ is turned ON in the standalone mode (see Section II.6 for external control mode). 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 1. For
appearance sake, the entries in the table have been decimal point aligned. Actual rheometer display
will have all fields left justified.