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Viscosity Test directly under the Temperature display. The factory setting is Single Point (see Figure 3-36). Pressing
the blue arrow, in this field, will present the Data Collection screen (see Figure 3-37).
Single point
Collect only a single data point when the End Condition is met.
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.
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
M19-2101 REVISION 2.0
Figure 3-36
D V N E X T R H E O M E T E R - O P E R AT I O N A L M A N U A L
Figure 3-37
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