Brookfield DV-III Ultra Rheometer - Manual (Page 39)

Brookfield Engineering Laboratories, Inc. Page 39 Manual No. M98-211-E0912
S USING PROGRAMMED SPEEDS WITH A ZERO TIME INTERVAL
Assume the following:
• A speed set has been selected.
• A subset of the speed set has not been selected. (i.e. we will use the entire set of speeds)
• The speed set included a time interval that was equal to zero minutes and zero 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 SPINDLE:31
TEMP:72.1°F PRTN
SET 2 01-12@02 ENTER
TORQUE = 56.3 %
Figure IV-20
Or, if the user had selected the LOCKOUT option, the default screen above would appear as in
Figure IV-21 below:
RPM:112 LK SPDL:31
TEMP:72.1°F PRTN
SET 2 01-12@02 ENTER
TORQUE = 56.3 %
Figure IV-21
Here, the LOCKOUT mode is indicated by the revision to the top line of Figure IV-21 where
“SPINDLE” has been contracted to “SPDL” and the two-letter combo: “LK” is being used to
indicate the “LOCKOUT” condition. Please note that while TORQUE is presently being displayed,
there is nothing to prevent the user from pressing the
SELECT DISP
key to change the data display
item.
The item to note here is the message being displayed on line 3 informing the user that the program is
at speed #02 of the 12 speeds comprising speed set #02. The DV-III Ultra will continue to operate
at 112 RPM until the ENTER key is pressed. At that point (pressing the ENTER key), two distinct
events will occur:
1. The DV-III Ultra will ramp up (or down) to programmed speed #03 and,
2. Since the printer is On (PRNT), the data corresponding to the last speed (112 RPM) that
existed at the time the
ENTER
key was pressed will be sent to the attached printer.
Thus, if 12 speeds comprised the selected speed set, then the user would be required to press the
ENTER key 12 times to exercise the entire speed set. After the last speed has been executed (i.e.
the user pressed the
ENTER
key for the twelfth time), 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-22