Knick Stratos Pro A2 PH Série Guide Rapide page 14

Sensoface
(Sensocheck must have been activated during confi guration.)
The smiley in the display (Sensoface) alerts to sensor problems
(defective sensor, sensor wear, defective cable, maintenance request).
The permitted calibration ranges and the conditions for a friendly,
neutral, or sad Sensoface are summarized in the following table.
Additional icons refer to the error cause.
Sensocheck
Continuously monitors the sensor and its wiring.
Critical values make the Sensoface "sad"
and the corresponding icon blinks:
The Sensocheck message is also output as error message Err 15 (glass
electrode) or Err 16 (reference electrode – with digital transmitters
only for InduCon sensors with SG). The alarm contact is active, the
display backlighting turns red, output current 1 is set to 22 mA (when
confi gured correspondingly).
Sensocheck can be switched off during confi guration (then Sensoface
is also disabled).
Exception:
After a calibration a smiley is always displayed for confi rmation.
Please note:
The worsening of a Sensoface criterion leads to the devaluation of the
Sensoface indicator (Smiley becomes "sad"). An improvement of the
Sensoface indicator can only take place after calibration or removal of
the sensor defect.
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