Alyza IQ PO4
Measurement / Operation
85
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05/2020
4.3.2 Priority
4.4
Calibration
4.4.1 Overview
Why calibrate?
During operation, individual components of the Alyza IQ can age or become
dirty with time and thus change their characteristics, e.g.:
Flow through cell
LED of the photometer
Photo diodes
Color reagent
Regular automatic or manual calibration procedures help you to recognize any
changes of the measuring characteristics of the Alyza IQ.
1-point calibration
The offset of the characteristic curve is adjusted with a regular 1-point calibra-
tion.
2-point calibration
The slope and offset of the characteristic curve are adjusted with a 2-point cali-
bration.
When to calibrate?
Calibrate at regular intervals.
Automatic
calibration
Any calibration can be carried out fully automatically at regular intervals.
Manual calibration
An additional, manual calibration can be started in the Alyza menu (tab
Wartung
/
Manuelle Funktionen
)
at any time (see section 4.4.2 Calibration,
86).
The
Autom.Reinigung
,
Autom.Kalibrierung
and
Messintervall
set-
tings may result in the overlapping of the carrying out of different
functions.
In this case, the functions are carried out according to priority.
Function
Priority
Duration (min)
Autom.Reinigung
1
6 (1-channel variant)
12 (2-channel variant)
Autom.Kalibrierung
2
6
Measuring
3
5
Содержание WTW Alyza IQ PO4
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