Brookfield DV2+Pro Viscometer User Manual

Page 37

Brookfield Engineering Labs., Inc.

Page 37

Manual No. M03-165-F0612

TORQUE = 24.2%
MIN: 15 SEC: 13

Figure IV-26

Note:

When this mode has begun, a press of the MOTOR ON/OFF/

ESCAPE key will cancel the time to torque sequence and return

the user to the screen of Figure IV-14.

The seconds display will increment from zero (0) to fifty-nine (59) in one (1) second intervals and

the current value of the viscometer torque will be updated continuously. When seconds reaches

fifty-nine (59), the minutes value will increment by one (1) minute. This will continue until the user

selected torque value is attained at which point the viscometer will display the following screen:

22MIN 54SEC: 85%
TIMED TORQ DONE

Figure IV-27

At this point the viscometer will stop the motor and continue to display this screen until any key

(except the

DOWN ARROW

keys, the

key or

SELECT DISPLAY

key) is pressed. The user can,

while this display is current, press the

DOWN ARROW

keys to view the viscosity that was

current at the time the display was frozen. The display would appear as follows:

cP 123.5e6
TIMED TORQ DONE

Figure IV-28

The display will switch between that of Figures IV-27 and IV-28 for each press of the

DOWN

ARROW

keys. As stated above, pressing any key (except the

DOWN ARROW

keys)

will cause the viscometer to exit the Time To Torque mode and resume operation with the screen

of Figure IV-23 displayed awaiting another Timed Torque run.

The user can press the

key while in either of these two screens (Figures IV-26 and IV-27) to

send one standard print string to the attached printer as many times as the user presses the

key.

In addition, the

key can be pressed during the actual measurement to obtain instantaneous

data. Pressing any other key will exit this mode and return the viscometer to normal operation.

Note:

For both of the methods of Sections IV.3.1 and IV.3.2 the following

apply:

1. For the Timed Stop method, the DV-II+Pro viscometers will retain the last value for the

time interval so that it will become the default the next time the user elects to use this

method.

2. For the Time To Torque method, the DV-II+Pro viscometers will retain the last entered

torque value for use when next the user elects to perform a time to torque test.

3. The user can set up a desired print interval time, then set the viscometer to the continuous