Brookfield DV-II+ Programmable Viscometer User Manual
Page 27
Brookfield Engineering Labs., Inc.
Page 27
Manual No. M/97-164-F1 102
That done, the user is presented with the following screen:
TIMED STOP
ENTER TO START
Figure 40
A
t this point the user must press the
ENTER/AUTORANGE
key to begin the timed stop operation. Any
other key press will be ignored except the
MOTOR ON/OFF/ESCAPE
key which will cancel the process
and take the user back to the screen of Figure 36 where you will have to begin all over again.
We will assume that the user pressed the
ENTER/AUTORANGE
key. You will now be presented with
the following screen for the duration of the timed run:
cP 123.5e6
MIN: 15 SEC: 13
Figure 41
Note:
When this mode has begun, a press of the MOTOR ON/OFF/ESCAPE key will
cancel the Timed Stop sequence and return the user to the screen of Figure 36.
Also note that data will be displayed in the currently selected method i.e. CGS
or SI units. Pressing the SELECT DISPLAY key allows display of alternate data
values such as Shear Stress, Shear Rate or Torque.
The seconds display will decrement from fifty-nine (59 ) to zero (0) in one (1) second intervals.
When seconds reaches zero (0), the minutes value will decrement by one (1) minute. This will
continue until all of the time has elapsed at which point the viscometer will display the following
screen:
cP 123e6
TIMED STOP DONE
Figure 42
At this point the viscometer will stop the motor and continue to display this screen until any key
except the
UP
or
DOWN ARROW
key, the
key or the
SELECT DISPLAY
key is pressed. The user
can, while this display is current, press the
UP
or
DOWN ARROW
keys to view the torque and speed
that were current at the time the display was frozen. The display would appear as follows:
%=76.4 RPM=100
TIMED STOP DONE
Figure 43
The display will switch between that of Figures 42 and 43 for each press of the
UP
or
DOWN
arrow
keys. A press of the
screen would send one standard print line to the attached printer for each
press of the
key. As stated above, pressing any key (except the
UP
or
DOWN ARROW
keys,
the
key or the
SELECT DISPLAY
key) will cause the viscometer to exit the Time To Stop mode
and resume operation with the screen of Figure 40 displayed awaiting another Timed Stop run.
The user can press the
key while in either of these two screens (Figures 42 and 43) to send one