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Brookfield DV-III Rheometer User Manual

Page 21

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The print option status is clearly displayed on the main screen at all times. For example, as shown
earlier in Figures 6, 8 and 13, “PRTO” indicates that the print mode in these cases is “PRINT OFF”.

IV.2 Alarm Options

There are three adjustable alarm settings: LO ALARM %, HI ALARM % and MOTOR OFF %.
The values are set in the Set Alarms mode. Alarms are used to signal the operator that the fluid is
out of specification. The alarms are set in % torque values, not Viscosity, Shear Stress or Shear Rate
values. The range of values which may be entered for each alarm and their default values are:

LO ALARM:

Minimum value: 10%
Maximum value: 99.9%
Default value:

10%

HI ALARM:

Minimum value: 0%
Maximum value: 100%
Default value:

99.9%

MOTOR OFF:

Minimum value: 0%
Maximum value: 115%
Default value:

110%

The procedure for entering and enabling alarm values is as follows starting from the main screen:

1) Press the

OPTION

key to display the Options Menu.

2) Press the

NUMBER 2

key to display the Alarms Options screen.

3) Press the

NUMBER 1

key to View/Set Alarms.

4) Enter the LO ALARM % torque value. The new entry will overwrite the default values.

5) Press the

NEXT

key to accept the LO ALARM % value and move the cursor to the HI ALARM

% field.

6) Enter the HI ALARM % torque value. The new entry will overwrite the default values.

7) Press the

NEXT

key to accept the HI ALARM % value, the cursor moves to the MOTOR OFF

% field.

8) Enter the MOTOR OFF % torque value. The new entry will overwrite the default value.

9) Press the

NEXT

key to accept the MOTOR OFF % value.

The cursor has moved to the LO ALARM % field. If you wish to change the first entry, the
value may now be entered. The

NEXT

key must be pressed after the new entry to accept this

new value. If you wish to change any of the other values of HI ALARM % or MOTOR OFF
%, you can proceed to over-write them using the

NEXT

key to accept the new values.

10) Press the

OPTION

key to return to the ALARMS OPTIONS screen.

11) Press the

NUMBER 3

key to enable (turn on) / disable (turn off) the alarms.