IM 12A06S01-00EN-P
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Table 4.1: Critical device errors
Error item
Result for output data
NVM (note 1)
Not a number (note 2)
User data CRC (note 3)
Not a number
Factory data CRC
Not a number
SA11 not working
Not a number
Critical sensor failure
Not a number
ID-chip sync
Not a number
Temp. too high (note 4)
Max. limit (set by HOST for
+260°C / +500°F or +140°C / +284°F)
Temp. too low (note 4)
Min. limit (set by HOST for
-40°C / -40°F or -30°C / -22°F)
pH voltage too high
Max. limit (+750 mV)
pH voltage too low
Min. limit (-750 mV)
ORP1 voltage too high
Max. limit (+1500 mV)
ORP1 voltage too low
Min. limit (-1500 mV)
ORP2 voltage too high
Max. limit (+1500 mV)
ORP2 voltage too low
Min. limit (-1500 mV)
SA11 internal temp. outside limits (note 5)
Not a number
Note 1:
NVM= Non Volatile Memory which is a type of memory that can retrieve stored
information from SA11 even after a power down.
Note 2:
Not a number means that there is no result of calculated output data.
Note 3:
CRC = Cyclic Redundancy Check, which is data verification.
Note 4:
Limit set depends on capabilities of the HOST system.
Note 5:
SA11 has an internal temperature element which measure temperature of
electronics. If the design temperature is outside the limits of -40°C up to +130°C an
error will be flagged.
Table 4.2: Sensor failures and sensor statuses
Failure/status item
Result for output data
Sensor detect
Not a number
Temp. element detect
Not a number
ID-chip detect
Not a number
Liquid Earth (LE) detect (note 1)
None
Calibration due
None
Sensor safely remove (note 2)
None
Glass breakage on input 1 (note 3)
Not a number
Glass breakage on input 2 (note 3)
Not a number
Note 1:
In case of a sensor without LE element, the Liquid Earth (LE) detect is switched to
inactive.
Note 2:
In case of sensor safely remove there will be no up date of data to sensor ID until
reset.
Note 3:
Failure detection active only in case that IMP1 and/or IMP2 setting being high. This
setting is done by ID-chip content of the sensor.