Brookfield DV3T Rheometer - Manual (Page 33)

Brookfield Engineering Labs., Inc. Page 33 Manual No. M13-2100
Single Point Averaging: Specify an amount of time over which to average measured data.
Collect a single data point when the End Condition is met. This
data point is an averaged value. If the time for averaging is shorter
than the total time for the step, then the average will be performed
for the specified time at the end of the test.
Example 1: The End Condition is Time with a value of 1 minute and 30 seconds, the Single
Point Averaging Duration is 30 seconds, the single data point collected from this
step will be an average of the data measured from 1 minute to 1 minute 30 seconds.
Multi Point: Collect multiple data points based on time. The Data Interval is specified in
Hours:Mins:Secs. If the End Condition is set to Time, then the total number of
points will be calculated and displayed in the Data Collection screen. If the End
Condition is not based on time then it is possible that the step will conclude prior
to a data point being collected. If you want a data point at the conclusion of the
step regardless of the time interval, you can check the check box in the Data
Interval screen.
Example 2: End Condition is Time = 2 minutes, Multi Point Data Interval is 10 seconds. Total
points collected will be 12 with the last data point taken in the last second of the
step.
Example 3: End Condition is set to Viscosity = 200 cP, Multi Point Data Interval is 10 seconds.
During the test the total time required to reach 200 cP is 65 seconds. Total points
collected will be 6 with the last data point taken at 60 seconds, 5 seconds before
the test is finished.
Example 4: End Condition is set to Viscosity = 200 cP, Multi Point Data Interval is 10 seconds.
Check the check box to Also Collect Single Point at Step End. During the test, the
total time required to reach 200 cP is 65 seconds. Total points collected will be 7
with the last data point taken at 65 seconds, 5 seconds after point #6 taken at 60
seconds.
Multi Point Averaging: Specify an amount of time over which to average measured data.
Collect multiple data points based on time until the End Condition is
met. Each data point is an averaged value. If the Averaging Duration
is shorter than the Data Interval for the step, then the average will be
performed for the specified time at the end of the Data Interval. The
total number of points to be collected will be displayed if the End
Condition is set to Time. If the End Condition is not based on time,
then it is possible that the step will conclude prior to a data point
being collected. If you want a data point at the conclusion of the step
regardless of the time interval, you can check the check box in the
Data Interval screen.
Example 5: End Condition is Time = 2 minutes, Multi Point Data Interval is 10 seconds.
Averaging Duration is 5 seconds. Total points collected will be 12 with the last
data point taken in the last second of the step. Each data point will be an average
of the data measured in the last 5 seconds of each Data Interval.
Example 6: End Condition is set to Viscosity = 200 cP, Multi Point Data Interval is 10 seconds.
Averaging Duration is 5 seconds. During the test, the total time required to reach
200 cP is 63 seconds. Total points collected will be 6 with the last data point taken
at 60 seconds, 3 seconds before the test is finished. Each data point will be an
average of the data measured in the last 5 seconds of each Data Interval.
Example 7: End Condition is set to Viscosity = 200 cP, Multi Point Data Interval is 10 seconds.
Averaging Duration is 5 seconds. Check the check box to Also Collect Single Point