10
Adjustment:
The sensor adjusts itself. Adjustment is started and monitored via Protos.
Calibration / Adjustment
Note:
The function check (HOLD) mode is active for the currently calibrated
module, the current outputs behave as configured.
NOTICE!
Without adjustment every oxygen meter delivers an imprecise or wrong output
value! After replacing the sensor or the sensor membrane, you must perform an
adjustment.
Procedure
Every oxygen sensor has its individual slope (Stern-Volmer constant cvs) and
its individual zero point (phase angle). Both values are altered, for example, by
aging.
For sufficiently high accuracy of oxygen measurement, the analyzer must be
regularly adjusted for the sensor data (adjustment).
Calibration/Adjustment Methods
• Automatic calibration in water/air
• Product calibration (saturation/concentration/partial pressure)
• Zero correction