Thermo Scientific DensityPRO NAI Series, User Manual

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Startup & the Setup Wizard
The Setup Wizard
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18 DensityPRO User Manual Thermo Scientific

STD Sample Time (sec) – The standardization sample time is the amount of
time, in seconds, that the detector will average the incoming signal. Choosing
an appropriate value for this parameter will depend on your process
conditions. In situations where the process density is quite steady, such as
when running water through a pipe, there should not be any significant swings
in the density value, and, therefore, the detector count should be stable. Under
these conditions, a relatively short standardization time, in the order of 60 to
300 seconds may be appropriate. When standardizing on a live process, it is
more likely that the density value will change over time. In these conditions it
is desirable to use a much longer sampling time, more in the order of 600 to
900 seconds.

STD Density – Enter the standardized density of the material in g/cc.
2. Click the Next button to view the Remaining Time Screen.
Figure 3-15. Remaining Time
This screen provides the user with a countdown of the time remaining sample
time, as well as the date, time and standardization count when the last sample was
taken.
When the sample time ends, the result of the standardization will be displayed in
the Detector Avg Count textbox. Click the Accept STD button to accept the
standardization, or the Reject STD button to reject the standardization and run a
new standardization.
3. Once the standardization parameters have been completed, click the Next button
to finish standardization.
4. Save the file, if desired, and click the Next button once more to reach the Wizard
Type Selection Screen.