Thermo Scientific LevelPRO, User Manual

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Startup & the Setup Wizard
The Setup Wizard
Thermo Scientific LevelPRO User Manual 3-13
This screen defines the standardization condition, the standardization time and the
level of the material in the pipe at standardization.

Standardization On – The two options for the standardization condition are
Empty or Not Empty.

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 level is quite steady and stable, the
vessel should not have any significant swings in the percentage, 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 turbulent surface, it is desirable to use a much longer
sampling time, more in the order of 600 to 900 seconds.

STD Level – Enter the standardized level of process in the vessel.
2. Once the appropriate selections have been made, click the Next button to view the
Remaining Time Screen.
Figure 3-12. Remaining Time
This screen provides the user with a countdown of the remaining standardization time,
as well as the date, time and standardization count when the last standardization was
performed.
1.
When the standardization 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.