14.1
Notes
14.2
General information
14.2.1
Calibration methods for ammonia sensors
Zero-point calibration
14.2.2
Calibration default settings for ammonia sensors
WARNING!
During the calibration, the relays and analog output signals assume the config-
ured states!
The calibration of ammonia sensors is based on measurements in ammonia-
free test solutions.
This calibration method is used to determine the ammonia zero point.
An ammonia-free test solution (e. g. water) is needed as a reference.
In the ammonia sensor calibration default settings, the zero-point calibration is
enabled and preconfigured as the only available calibration routine.
Open the calibration default settings:
Device menu r Calibration r Select Analysis Input for pH/Redox/
r Calibration Default Settings
NH
3
Sample screen:
Ammonia calibration
default settings
14 Calibrating ammonia sensors
33