Iii.3.3 print time interval – Brookfield DV-II+ Programmable Viscometer User Manual

Page 28

Brookfield Engineering Labs., Inc.

Page 28

Manual No. M/97-164-F1102

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.

III.3.2 Time to Torque

On entry to this mode, the user is presented with the following screen display:

TIME TO TORQUE
SET TORQUE:00%

Figure 44

Using the

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 45 appears:

TIME TO TORQUE
SELECT RPM: 30

Figure 45

Using the

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

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 44 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 35. Finally, pressing the

ENTER/

AUTORANGE

key will cause the DV-II+ 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 46

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 44 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