Brookfield DV-III Rheometer User Manual

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Speed Set Usage Notes:

1) When a speed set is used, all the captured test data is stored in memory until another speed set

test is run. When the next (either a new or memory resident) speed set test begins, the last
captured test data is over-written.

2) After a speed set is executed, the data is retained in memory by the DV-III even if the power

switch is turned off.

3) To halt a running program, press the

PROG RUN

key. Spindle rotation will stop and the

following screen will be displayed:

Figure 15

Press

PROG RUN

to continue the program where you left off. The step time will pick up at the

time it halted. Press the

CANCEL

key to stop the program.

III.5

Operator Lock-Out

Operator Lock-Out is used in conjunction with a speed set program that is loaded and ready to run.
It locks out most of the operating functions, leaving the operator with access to the

SELECT DISP,

MOTOR ON/OFF

PROG RUN

and

CANCEL

keys. This reduces the chance for errors in

data gathering. Only the speed set program, which you choose for lockout, will run. You cannot
inadvertently change the current spindle entry and thus have incorrect Viscosity, Shear Rate or Shear
Stress data.

The procedure for setting Lock-Out is as follows. Start from the main screen after power up,
Autozero and Select SPDL entry have been completed:

1) Press the

PROG SPEED

key.

Select a speed set.

3) Press the number 3 key to use the speed set (as shown in Figure 11).

4) Press

PROG RUN

5) Press

OPTION

and the Lock-Out Options screen will be displayed.

Figure 16

6) Press the

NUMBER 1

key to Enable Lock-Out and the screen changes to the step sequence

screen (Figure 14) ready for you to select your step sequence.

7) Press

PROG RUN

and the program begins running in Lock-Out mode. Note that the top line

of the DV-III main screen is changed to display the letters LK indicating that the DV-III is