130 Instruction Manual QuickTOC
®
ultra
IECEx 12E5119
7 How to Work with the Analyser
7.9 SIngle Measurement LAR | PROCESS ANALYSERS AG
7.9.1 Settings
In this display, the settings for the individual measurements can be adjusted.
Repetitions:
This value determines with how many individual measurements to be carried out in succession, the
measured value of the selected sample flow is to be determined. The permissible values are between 1
and 10 repetitions. The default value is 1 (1 measurement / no repeat). If several measurements of a
sample take place in succession, an average value is additionally formed and output in addition to the
individual measured values. The measurement repetition always takes place with the same sample, wi-
thout refilling the sample storage vessel. The injection needle is rinsed between the repeated measure-
ments.
Outlier:
With the help of this function incorrect measurements from the averaging are excluded. The permissible
values are between 0 and 8 repeat measurements. To eliminate outliers, the measurements with the
greatest deviation from the mean are chosen. If the deviation lies in the tolerance range of the largest
permitted CV value for a measurement, the measured value of the individual measurements is used for
averaging. If the deviation is outside the tolerance range, the measured value is treated as an outlier and
is ignored when calculating the mean value and the coefficient of variation.
Max. CV:
The maximum CV value or coefficient of variation only becomes effective in combination with the measu-
red value outliers. If Measured Outlier Correction is activated by entering the numbers 1 or 2 - 8, the
largest allowable CV value for a measurement is taken into account when determining the outlier. The
permissible values are between 0% and 100%. The coefficient of variation describes the repeatability or
reproducibility of several consecutive individual readings taken on the same sample.
CV = standard deviation / mean * 100
Fig. 94: Settings (Example)
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