Hach Ultra ORBISPHERE 510, Руководство оператора

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Orbisphere 510/511/512 Analyzers - Measurement Menu 49 of 138
Operator Manual
ORBISPHERE
4.2.4 Measurement Filter Configuration
The filters are aimed at “flattening” the measurement
curve in situations where the process shows atypical peak
values that could otherwise hamper the interpretation of
measurement readings. The filter is applied on the last set
of measurements each time a measurement is taken.
Mean: Mathematical average of the last set (depth) of
measurement values.
Median filter: Allows for eliminating atypical peak
measurement values, and averaging the remaining
ones. The calculation sorts the last measurements set
(depth) by values, then deletes the highest and lowest
values, and averages the remaining values (central
depth).
• Example for depth 7, central depth 5:
Sorted values, both ends eliminated, the average of the
center five is then 3.88.
• Example for depth 5, central depth 3:
Sorted values, both ends eliminated, the average of the
center three is then 4.23.
• Example for depth 8, central depth 4:
Sorted values, both ends eliminated, the average of the
center four is then 4.43.
0.7
1.1 4.0 4.3 4.4 5.6
7.0
1.1
4.0 4.3 4.4
5.6
0.7 1.1
4.0 4.3 4.4 5
5.6 7.0