wtw TresCon NOx-N, Operating Manual

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NOx-N Operation
2 - 23 ba43110e05 01/2011
2.11 Displaying/changing the AutoAdapt parameters
The AutoAdapt system can be used to minimize the consumption of
reagents. The measuring intervals adapt automatically to the changes
in concentration.
How it functions The regression line is calculated from the last three measured values.
The slope of the lines is evaluated. The measuring interval is changed
as a result so that the maximum allowed change in concentration per
measurement is not exceeded. AutoAdapt sets the interval to
"Continuous" (corresponds to approx. 1½ minutes) or to fixed interval
times, e.g. from 5 minutes to 20 minutes.
Relationship
Measured value-interval
The following figure shows the relationship between the measured
value and interval:
Parameter You can specify the concentration change per time (DC/time) and the
interval limits (Minimum/Maximum interval). AutoAdapt sets the
duration of the interval within the limits to one of the following values: 5,
10, 15 ... 30 minutes or to "Continuous" (corresponds to approx. 2
minutes).
Note
The AutoAdapt function is switched on in the Measuring Interval menu
(see section 2.12 D
ISPLAYING
/
CHANGING THE MEASURING INTERVAL
on
page 2-25).
Time
Concentration
Measuring interval