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Brookfield DV2+Pro Viscometer User Manual

Page 36

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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: