Inputs: Nitrate Liquistation CSF48
164
16.2.3 Calibration settings
Calibration timer and calibration expiration date
--> "Inputs: General/Frequently occurring functions" section ä 108
Stability criteria
You define the permitted measured value fluctuation which must not be exceeded in a certain
timeframe during calibration.
If the permitted difference is exceeded, calibration is not permitted and is aborted automatically.
16.2.4 Diagnostics settings
This menu branch is used for specifying warning limits, and for defining whether and how dia-
gnostics tools should be used.
The associated diagnostics code is displayed for every setting.
Limits operating hours
The total operating time of the sensor and its use under extreme conditions is monitored. If the
operating time exceeds the defined threshold values, the device issues a corresponding
diagnostics message.
Each sensor has a limited life expectancy which heavily depends on the operating
conditions. If you specify warning limits for operating times under extreme conditions, you
can guarantee the operation of your measuring point without any downtime by
performing maintenance tasks in time.
Path: Menu/Setup/Inputs/Nitrate/Extended setup/Calib. settings
Function Options Info
Stability criteria
Delta nitrate 0.1 to 5.0 %
Factory setting
2.0 %
Permitted measured value fluctuation during calibration
Delta temperature 0.10 to 2.00 ˚C
0.18 to 3.60 ˚F
Factory setting
0.50 ˚C
0.90 ˚F
Permitted temperature fluctuation during calibration
Duration 0 to 100 s
Factory setting
10 s
Timeframe within which the permitted range for
measured value fluctuation should not be exceeded
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