Brookfield DV-II+ Programmable Viscometer - Manual (Page 40)

Brookfield Engineering Labs., Inc. Page 40 Manual No. M/97-164-F1102
Program 2: For use with an external temperature controller
Command Command Description Parameter Comments
WTP Wait for temperature 40.0 wait until temperature = 40
°
C (as
an example, a
Thermosel/Controller can be used
for temperature control)
WTI Wait for time interval 05:00 soak time; allow temperature to
settle
SSN Set viscometer speed 25.0 run at 25 RPM
SPI Set print interval 00:30 begin printing data at 30 second
intervals
WTI Wait for time interval 06:00 wait at this step for 6 minutes,
effectively printing 12 data lines
Program 3: Wait for cure
Command Command Description Parameter Comments
SSP Set spindle 31 set to a number 31 spindle
SSN Set viscomter speed 100.0 run at 100 RPM
SPI Set print interval 00:05 begin printing data at 5 second
intervals
WPT Wait for % torque 85.0 wait until % torque = 85; a curing
cycle
Program 4: Spring relax
Command Command Description Parameter Comments
WKY Wait for a keypress Wind to 100% tell operator to wind spindle until
100% torque is reached
WPT Wait for % torque 100.0 wait until 100% torque is reached
WKY Wait for a keypress Release spindle tell operator to release the spindle
SPI Set print interval 00:01 begin printing data at 1 second
intervals
WPT Wait for % torque 0.0 wait for spindle to completely
unwind to 0% torque
Program 1: Pre-shear
Command Command Description Parameter Comments
PLN Print text now Preshearing now print user message
SSN Set viscometer speed 50.0 run at 50 RPM
WPT Wait for % torque 90.0 wait unitl 90% torque is reached
PLN Print text now Collecting data print user message
SPI Set print interval 00:10 begin printing data at 10 second
intervals
SSN Set viscometer speed 10.0 run at 10 RPM
WTI Wait for time interval 01:40 wait at this step for 1 minute and
40 seconds, effectively printing
10 data lines
IV. 5 Example Programs
The following example programs can also be found on the DVLoader disk that was included with
the DV-II+ Programmable Viscometer:
(time to torque measurement)