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Sensoface
Sensoface is a graphic indication of the sensor condition.
Sensoface Criteria
(adjustable – see Sensor monitoring)
1) “Slope”: Sensor current value with oxygen saturation (referred to air), 25 °C,
and 1013 mbar normal pressure (nA /100 %). The display only indicates the “nA”
symbol. From the technical point of view, it is no “slope” but a calibration point.
This value shall allow comparing the sensor with the specifications in the data-
sheet.
2) With Protos 3400(X) only
Sensocheck:
Monitoring of membrane and electrolyte
10.3 mA
02/05/17
Parameter
Critical range
Standard sensor
(SE7*6)
Trace sensor 01
(SE 7*7 ...)
Trace sensor 001
2)
Slope
1)
< -110 nA
or > -30 nA
< -525 nA
or > -225 nA
< -8000 nA
or > -2500 nA
Zero
< -1 nA
or > 1 nA
< -1 nA
or > 1 nA
< -3 nA
or > 3 nA
Sensocheck
(impedance)
0.3*R or > 3.5*R
Response time
> 1200 s
Calibration timer
when 80 % expired
Sensor wear
as specified (ISM sensors only)
The “smileys” provide information on wear and
required maintenance
of the sensor (“friendly” - “neutral” - “sad”).
