Brookfield DV-III Ultra Rheometer - Manual (Page 27)

Brookfield Engineering Laboratories, Inc. Page 27 Manual No. M/98-211-B0104
Brookfield Engineering Laboratories, Inc. Page 27 Manual No. M98-211-E0912
III. MAKING VISCOSITY AND YEILD MEASUREMENTS
III.1 Quick Start
Viscosity Measurement
The DV-III Ultra Rheometer uses the same methodology for viscosity measurement as the Brookfield
Dial Reading Viscometer and DV series of Digital Viscometers. If you have experience with other
Brookfield equipment, this section will give you the quick steps for taking a viscosity reading. If
you have not used a Brookfield Viscometer before, skip this section and go to Section III.2 for a
detailed description.
A) Assemble and level the rheometer (Section I.10).
B) Turn power on. Select 2 = STANDALONE MODE.
C) Autozero the rheometer (Section II.1).
D) Enter the spindle number using the SELECT SPINDLE key (Section II.3).
E) Introduce the spindle into the sample and attach the spindle to the coupling nut.
NOTE: Left-hand threads.
F) Enter the speed of rotation using the number pad and ENTER key (Section II.4).
G) Record % torque and viscosity.
Yield Measurement
The DV-III Ultra Rheometer uses the same methodology for yield measurement as the Brookfield
YR-1 Rheometer. If you have experience with the YR-1, this section will give you the quick steps
for taking a yield stress reading. If you have not used a Brookfield Viscometer before, skip this
section and go to Section IV.8 for a detailed description.
A) Assemble and level the rheometer (Section I.10).
B) Turn power on. Select 2 = STANDALONE MODE.
C) Autozero the rheometer (Section II.1).
D) Press the PROG key on the rheometer keypad. The rheometer will display the “PROGRAM
MODES” screen as shown in Figure II.20. Press the “4” key to access the Yield Program.
E) Start the EZ-Yield software program on your PC. In the upper right corner of the main screen,
set the instrument setting to “DV-III ULTRA” and the COM port setting to the appropriate
com port.
F) Click on the “Test Parameters” tab beneath the toolbar on your PC screen. Insert values for
the EZ-Yield test parameters as explained in Section I.3 and save the file if required for future
use.
G) Click the download button on the toolbar on your PC screen. The screen on the rheometer
will show “DOWNLOAD COMPLETE, PRESS ANY KEY”.