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Chapter 6: Analyzer Operation
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Figure 43: Operation with Five Streams and the Check Standard
Calculated Run Time
It is important to know the Run Time of the selected measurements. The Run Time is the time required to
measure all of the enabled streams and the check standard. Run Time is a function of:
• The number of streams that will be measured
• Whether or not the check standard is measured
• The number of repetitions that are selected for each stream and the check standard
• The number of Dilution Water and Sample Flushes selected
• The type of measurement selected (NPOC, TOC, and so on)
• Whether or not AutoRange is selected
In the example shown in Figure 43
, the Run Time is 1.5 hours. As the graph indicates, the Run Time must be less
than the Cycle Frequency. If you select an incorrect Cycle Frequency that is less than the Run Time, the
Analyzer will automatically display a notification message and will not start analysis.
To aid in the setup process, the Analyzer calculates the Run Time for the current Online configuration. On the
Configure Online screen, press the Calc Run Time button. A Total RunTime message appears with the calculated
run time (such as 0.83 hours) of the current protocol (see Figure 31). The message also prompts you with an
opportunity to set the Cycle Frequency. Press Yes if you want to increase the Cycle Frequency. If the Cycle
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