Honeywell ST 700 User Manual page 105

Diagnostics Type
Non-Critical
(continued)
Revision 4.0
Diagnostics
No DAC Compensation
Reset Corrects Flag
Sensor Fault
Sensor overload
Current Fixed
ST 700 Series HART/DE Option User's Manual
Details/Resolution
Resolution:
Reset the device. If the problem persists,
replace the Meter Body.
Possible causes:
No temperature compensation data exists for
analog output calculations. Loop accuracy may
be slightly compromised. Effect will be minor
degradation of ambient temperature influence
specifications.
Resolution:
Replace Electronics Module (PWA) to achieve
the maximum current loop accuracy or return
the device to factory for DAC compensation.
Successful "Reset Corrects" operation will set
this flag and display message as "Calibration
Correction values are reset to factory default".
When 'LRV Correct' and 'URV Correct'
operations are performed, the flag will be reset.
Possible causes:

There is a failure on the Sensor Board

Redundant Characterization Calculation
Error

Calculated pressure is above Upper
Transducer Limit (UTL).
Resolution:
Check range and, if required, replace
transmitter with one that has a wider range.
Meter Body may have been damaged. Check
the transmitter for accuracy and linearity.
Replace Meter Body and recalibrate if needed.
Possible causes:
The calculated pressure is above the Upper
Transducer Limit (UTL).
Resolution:
Check range and, if required, replace
transmitter with one that has a wider range.
Meter Body may have been damaged. Check
the transmitter for accuracy and linearity.
Replace Meter Body and recalibrate if needed.
Possible causes:
Output current is fixed and not varying with
applied input. Output Mode is active.
Resolution:
Exit Output mode if active.
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