KROHNE OPTISENS AAC 050 EN - Manual (Page 14)

Manual OPTISENS AAC 050
OPTISENS AAC 050 14
3.3 Password and language
Main menu
.
.
Enter password Enter password
056 Code
3.3.1 Enter password
To get access to the various parameters you have to enter the correct password:
• Code 11 gives access to the parameters „calibration“, „temperature compensation“, and „set points“.
• Code 86 gives access to all parameters and functions.
With any other number it is impossible to select, view or change any parameter.
Main menu
.
. Basic settings
Basic settings .
. Language
Language We speak
English
3.3.2
Language
For the communication with the device you can choose from a variety of languages.
Since choosing a language is part of the basic settings, it requires code 86. If a different code is set, you will
be asked to enter the correct password.
4.
Adjustments for the measurement
Main menu
Calibration Calibration of the measurement and display of slope.
Temp. comp.
.
Selection between automatic and manual temperature compensation,
adjustment of temperature for manual compensation.
Flow rate Display of the flow measurement
. Basic settings
Basic settings Cal. Pt/NTC Calibration of the temperature measurement.
.
Flow rate Calibration of the flow measurement
.
.
Flow alarm Lack-of-water indication or flow measurement
Averaging Activation of averaging function
Temp. coeff. Coefficient for linear temp. compensation
Cleaning Cleaning interval and delay time (for option
with ASR)
Potentiostatic measurements require a 1-point calibration:
Since the measurement depends upon the flow-rate and calibration solutions would not be stable anyway,
the sensor cannot be taken out of the armature for calibration, as is done with pH sensors. Instead the actual
concentration of the test water is determined by an alternative method, for example photometrically with
DPD, and this value is entered as calibration value. Calibration of the Oxygen measurement is simpler, using
the Oxygen concentration of the ambient air.
The measurement is influenced by temperature. This influence can be compensated manually or
automatically. For manual compensation the temperature is entered manually, for automatic compensation
temperature has to be measured with a temperature sensor.