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Brookfield DV-III Ultra Rheometer User Manual

Page 40

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Brookfield Engineering Laboratories, Inc.

Page 40

Manual No. M/98-211-B0104

Brookfield Engineering Laboratories, Inc.

Page 40

Manual No. M98-211-E0912

Pressing the

ENTER

key would return the user to the default screen, as depicted in Figure IV-21, or

to the program start and stop limit selections of Figure IV-15 if the

PROG RUN

key is pressed.

S

USING PROGRAMMED SPEEDS WITH A NON-ZERO TIME INTERVAL

A

ssume the following:

• A speed set has been selected.

• A subset of the speed set has not been selected. (i.e. we’ll use all of the speeds in the speed

set)

• The speed set included a time interval that was greater than zero (0) minutes and zero (0)

seconds.

• Print mode has been set to non-continuous mode (i.e. output will be sent to the printer only

when the user presses the ENTER key).

With the above items in effect our default display screen will appear as follows after the program

steps have been completed:

RPM:112 LK SPDL:31
TEMP:72.1°F PRTN
SET 2 01-12@02 PROG
TORQUE = 56.3 %

Figure IV-23

The difference between this mode and the zero time interval mode is reflected in the message being

displayed on line three of the display where PROG has replaced ENTER indicating that the program

will be executed step-by-step without user intervention. Here the user is again informed that he is

at speed #02 of the 12 speeds comprising speed set #02. As the programmed time interval elapses,

the following will occur:

• The DV-III Ultra will ramp up (or down) to programmed speed #03 and,

• The data corresponding to the last speed (speed #02) that existed at the moment the step

time elapsed will be sent to the printer since the printer is ON (PRTN) (The automatic

ramping to the next speed will be interpreted by the DV-III Ultra as if the ENTER key

had been pressed, causing the printer output).

• At the completion of the speed set, the viscometer speed will be set at ZERO RPM

After the last speed has been executed, the viscometer speed will be set at ZERO RPM and the

following message will be displayed:

PROGRAM COMPLETE

PRESS EITHER

ENTER OR PROGRAM RUN

Figure IV-24

Pressing the

ENTER

key would return the user to the default screen, as depicted in its general form

in Figure IV-23, or to the program start and stop limit selections of Figure IV-15 if the

PROG RUN

key is pressed.