Alyza IQ PO4
Measurement / Operation
89
ba76201d03
05/2020
4.4.3 Calibration history
The calibration history of the Alyza IQ is available in the Alyza menu
(tab
Historie
/
Kalibrierhistorie
).
Example and explanation of a calibration history (see section 4.5.3 Information
on maintenance activities and calibration procedures (tab Historie),
93)
4.4.4 Reactivating the last valid calibration
Manual calibration
unsuccessful
If a manual calibration procedure is unsuccessful, the measuring operation can
only be resumed once a valid calibration was carried out or reactivated.
Thus you can immediately continue to measure if a calibration failed or you sus-
pect that the calibration conditions were not optimally met.
Automatic
calibration
unsuccessful
If an automatic calibration is unsuccessful, the last valid calibration is automati-
cally reactivated. If three calibration procedures in succession are unsuccessful,
the measuring operation can only be resumed once a valid calibration was car-
ried out or manually reactivated.
Reactivating old calibration data is a temporary measure. Take into
consideration that the sensor my provide wrong measured values.
Ensure the correct functioning of the Alyza IQ by checking and/or
recalibrating.
1
In the measured value display, use
<
>
to select the Alyza IQ.
2
Using the
<C>
key, switch to the Alyza menu.
3
Using
<
>
, switch to the
Wartung
tab.
4
Carry out the
Alyza IQ STOPPEN
function.
5
Carry out the
Alyza IQ STARTEN
function.
A menu pops up with the following options:
Kalibrierung wiederholen
Werkskalibrierung aktivieren
Letzte gültige Kalibrierung aktivieren
Kalibrierdaten anzeigen
6
Select
Letzte gültige Kalibrierung aktivieren
or
Werkskalibrierung aktiv-
ieren
.
7
Switch off the maintenance condition.
The measured value is displayed after approx. 5 ... 7 minutes in the
measured value display.
Summary of Contents for Alyza IQ PO4-XYZ
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