145
10 Configuration
10.5.4 pH/Redox/NH
3
analysis inputs
Open: Device Menu > Configuration > Analog Inputs >
Analysis Input 1 to 4 > Configuration
Configuration point Selection/
setting option
Explanation
Designation up to 20 text characters Designation for the input
Electrode type pH standard
pH antimony
pH ISFET
redox
ammonia
Type of electrode connected
Redox unit mV
percent
mV: unit for the redox potential
percent: concentration percentage that can be
derived from the redox measurement
This requires a two-point calibration.
⇨ Chapter 14.2.1 "Calibration methods for Re-
dox sensors", page 219
Filter Time Constant 0.0 to 25.0 s Optimization of measured value updating
The higher the value of the filter time const., the
slower the measured value is updated.
Start of
display range
-99999 to +99999
a
Upper/lower limit for labeling the scale when dis-
playing measured values, e.g. in recorder dia-
grams and bar graphs
Display range end -99999 to +99999
a
Manual compensation Yes
No
Activation of manual temperature compensation
With manual temperature compensation (setting
"yes"), the temperature value set in the configu-
ration item "Manual compensation temperature"
is used for temperature compensation. The con-
figuration item "Compensation temperature" is
grayed out.
With the "no" setting, the temperature value of
the signal selected in the configuration item
"Compensation temperature" is used and the
configuration item "Manual compensation tem-
perature" is grayed out.
Manual compensation
temperature
-25.00 up to 150 °C Temperature value for manual temperature com-
pensation (see configuration item "Manual com-
pensation")
Compensation tem-
perature
Selection from
analog selection
Analog input of the temperature sensor for com-
pensation of the effect of temperature on the pH-
value measurement (see configuration item
"Manual compensation")
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