Brookfield DV2+Pro Viscometer User Manual
Page 36

Brookfield Engineering Labs., Inc.
Page 36
Manual No. M03-165-F0612
IV.3.2 Time to Torque
On entry to this mode, the user is presented with the following screen display:
TIMED TO TORQUE
SET TORQUE:00%
↑↓
Figure IV-23
Using the
UP
or
DOWN ARROW
keys, the user enters a value for the torque level that you wish to
reach.
Note:
The value for torque must be other than zero (0) and less than or
equal to ninety-nine (99) percent or you will not be able to continue.
At this point, the user presses the
OPTIONS/TAB
key and the screen shown in Figure IV-24 appears:
TIME TO TORQUE
SELECT RPM: 30
↑↓
Figure IV-24
Using the
UP
or
DOWN ARROW
keys, the user selects a speed from the currently selected speed
set. If you had opted to use the LVRV sequential or interleaved speed sets, all those speeds would
be available by pressing the
UP
or
DOWN ARROW
keys. Conversely, if the user had selected a
custom speed set, you would be limited to those speeds comprising the custom speed set. After
selecting the speed, the user may press any one of three keys to continue: the
OPTIONS/TAB
key,
the
MOTOR ON/OFF/ESCAPE
key and the
ENTER/AUTORANGE
key. If the user presses the
OPTIONS/TAB
key you will return to the torque input screen of Figure IV-23 where you may change the torque
input if so desired. Therefore, continued pressing of the
OPTIONS/TAB
key will toggle between the
torque input screens and the motor input screen. A press of the
MOTOR ON/OFF/ESCAPE
key will
cancel the time to torque operation and take the user back to the screen of Figure IV-14. Finally,
pressing the
ENTER/AUTORANGE
key will cause the DV-II+Pro to accept and store in EEPROM the
new values (only) for the torque level and the selected motor speed.
That done, the user is presented with the following screen:
TIME TO TORQUE
ENTER TO START
Figure IV-25
At 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 IV-23 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
a screen similar to Figure IV-26 for the duration of the timed torque run: