Alyza IQ NH4
What to do if ...
153
ba76202d02
05/2020
Implausible
measured values
Measuring mode
cannot be set
Cause
Remedy
Erroneous measurement
Wait for another measurement
Calibration error
Repeat calibration
Check the calibration standards
Check the connection of the calibra-
tion standards
Refill the tubes for the ChemBags
with standard solutions
Alyza menu / tab
Wartung
/
Manuelle
Funktionen
/
Befüllen (einzeln)
Exchange calibration standards
Increase the time between cleaning
and calibration.
Measured values always too
high after cleaning
Activate the function
Konditionierung
(menu
Einstellungen Sensoren/Dif-
ferenzsensoren
/
Autom.Reinigung
).
After cleaning, a rinse is carried out for
each of the set number of steps and then
a rinse with the sample and the added
reagent.
Measuring cell of the photometer
unit dirty
Carry out a cleaning cycle
Alyza menu / tab
Wartung
/
Manuelle
Funktionen
/
Reinigen
Contact the service department
Interferences
e.g. in sample matrix
Select suitable measuring location
Photometer unit draws in air (e.g.
air bubbles in the sample tube)
Reduce the pump capacity of the fil-
tration pump (set to approx. 2 - 5 %).
Check the screw couplings of the
tubes for tightness.
Cause
Remedy
Alyza IQ is not stopped
Stop the Alyza IQ
Содержание YSI Alyza IQ NH4
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