Inputs: Oxygen Liquistation CSF48
140
Delta zero point (only amperometric sensors)
The device determines the difference between the last calibration and the penultimate
calibration, and issues a warning or an alarm depending on the setting configured. The
difference is an indicator for the condition of the sensor. Increasing differences indicate the
formation of buildup on the cathode. Clean or replace the cathode as specified in the instructions
in the sensor operating manual.
Cap calibrations (only amperometric sensors)
The calibration counters in the sensor make a distinction between sensor calibrations and
calibrations with the membrane cap currently used. If this cap is replaced, only the (cap)
counter is reset.
Path: Menu/Setup/Inputs/DO/Extended setup/Diagnostics settings
Function Options Info
Delta zero point 0.0 to 10 nA Specify your limit values for monitoring the zero point
differential.
Function Options
•On
•Off
Factory setting
Off
Warning limit Factory setting
1.0 nA
Diagnostics code and associated message text:
520 "Sensor calib."
Path: Menu/Setup/Inputs/DO/Extended setup/Diagnostics settings
Function Options Info
Number of cap calibrations Specify how many calibrations may be performed with a
membrane cap before the cap has to be replaced.
The number depends heavily on the process and must be
determined individually.
Function Options
•On
•Off
Factory setting
Off
Warning limit 0 to 1000
Factory setting
6
Diagnostics code and associated message text:
535 "Sensor check"
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