IM 12A06S01-00EN-P
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Table 7.3: Measurement warnings on calculated outputs
Failure too high means that the calculated output value is higher than the user configured limit.
Failure too low means that the calculated output value is less than the user configured limit.
Failure/status item
Warning based upon conditions set
Temp. too high
Limit, to be configured by user from
-40°C / -40°F or -20°C / -4°F up to
+260°C / +500°F or +250°C / +482°F
Temp. too low
Limit, to be configured up to
-40°C / -40°F or -20°C / -4°F up to
+260°C / +500°F or +250°C / +482°F
Conductivity too high
Limit, to be configured by user from
0 up to 500S
Conductivity too low
Limit, to be configured by user from
0 up to 500S
TC1
Limit, to be configured by user from
0 up to 10%/°C
TC2
Limit, to be configured by user from
0 up to 10%/°C
USP limit
Non-configurable
USP margin
Margin, to be configured by user from
0 up to 100%
Polarization
Limit, to be configured by user from
0% up to 50%
SA11 internal temp. outside operating limits The internal temperature is outside the
operating limits from -30°C up to +125°C
•
Device status
The device status represents activities of the SA11 device such as but not limited to
calibration mode, HOLD mode and Sleep mode.
Note:
When SA11 is in sleep mode, all operations which result in output data will be disabled.
Communication however remains active.
7.4 Logbook configuration
Logbooks are used to keep an electronic record of events such as error messages and
calibrations. By referring to this log, users can, for instance, easily determine maintenance or
replacement schedules.
The SA11 Smart Adapter will log events continuously during operation and calibration.
Predefined events will be stored in a logbook. These events are distinguished in two types,
calibration events and alarm events, each having their own logbook.
Each event contains the following data, each item 4 bytes:
• Date (based upon seconds starting from January 1st, 2000)
• Data
• Event number
For an overview of logbook events see Appendix 7.
Each logbook can store up to 50 events, of which the oldest event will be overwritten by the
latest event. A copy of the logbooks is stored too in the ID-chip of the sensor connected.
The logbook stored in the ID-chip of the sensor however is leading in case a sensor is
replaced or reconnected. At that moment the content of the logbook of the sensor will
overwrite the content of the logbooks of the SA11.
Only Yokogawa expert HOST, model FLXA402 and Fieldmate, can read each logbook of the
SA11 and if necessary erase each logbook individually.