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Brookfield DV-I Viscometer User Manual

Page 17

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Brookfield Engineering Laboratories, Inc.

Page 17

Manual No. M/92-021-O604

3. At this point, the user need only press the

MOTOR ON/OFF

key to begin the timed stop

operation. Any other key will abort the process and the user will have to begin again by
simultaneously pressing the

SET SPEED

and

SELECT SPINDLE

keys.

4. We will assume that the user pressed the

MOTOR ON/OFF

key to ON and is now presented

with the following screen for the duration of the timed run:

cP 123456789

MIN: 15 SEC:13

Figure II-19

NOTE:

When this mode has begun, a press of the MOTOR ON/OFF key will interrupt
the Timed Stop sequence and return the user to normal operation.

The seconds display will decrement from 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 123456789

TIMED STOP DONE

Figure II-20

At this point, the viscometer will stop the motor and continue to display this screen until
the user presses the

UP

or

DOWN ARROW

keys to view the Torque and Speed that were

current at the Timed Stop completion. This display would appear as follows:

%=76.4 RPM=100

TIMED STOP DONE

Figure II-21

The display will switch between that of Figures II-20 and II-21 for each press of either the

UP

or

DOWN ARROW

key. Pressing any key except the

UP

or

DOWN ARROW

keys will cause

the viscometer to exit the Timed Stop mode and resume normal operation.

NOTE:

For the Timed Stop method, the DV-I+ Viscometer will retain the last value for the
time interval in EEPROM so that it will become the default the next time the user
elects to use this method.

II.9.3 Time to Torque

1. After pressing the

DOWN ARROW

key when in the display of Figure II-15, the user is

presented with the following screen: