Stratos®Pro A4... PH User Manual

Sensoface
Display Problem Status
Asymmetry
potential and
slope
178
Calibration
timer
Asymmetry potential (zero)
and slope of the sensor are
still okay.
The sensor should be replaced
soon.
Asymmetry potential and
slope of the sensor have
reached values which no longer
ensure proper calibration.
Replace sensor.
Over 80% of the calibration
interval has already past.
The calibration interval has
been exceeded.
Sensor defect Check the sensor and its
connections (see also Error
Messages Err 15 and Err 16).
Response
time
Sensor response time has
increased.
The sensor should be replaced
soon.
To achieve an improvement, clean
the sensor and soak it in buffer.
Sensor response time significantly
increased ( > 72 s, calibration
aborted after 120 s)
Replace sensor.