Page 88
ST 800 Series HART/DE Option User’s Manual
Revision 5.0
9.2 HART Diagnostic Details
Table 28 lists and describes the HART critical and non-critical HART diagnostic details.
Table 28 – HART Critical and Non-Critical Diagnostic Details
Status Type
Device Status
(HART Command
48)
Details/Resolutions
Critical Status
(Failure)
(continued)
Meter Body Critical
Failure
Meter Body NVM
Corrupt
Possible causes:
•
Critical failure reported at the Sensor level
•
Meter Body NVM Corrupt
Resolution:
Reset the device. If the problem persists, replace the
Meter Body.
Electronic Module
DAC Failure
Config Data Corrupt
Electronic Module
Diag Failure
Possible causes:
•
Critical failure reported for the Electronics
Module
•
Database Corruption
•
Communication section has failed
Resolution:
Reset the device. If the problem persists, replace the
Electronics Module.
Sensor Comm
Timeout
Possible causes:
•
No response from the Sensor
Resolution:
Try replacing the Electronics module. If this does not
fix the problem, replace the Meter Body.
Non critical status
(Warning)
(continued)
No DAC
Compensation
Possible causes:
No temperature compensation data exists for analog
output calculations.
Loop accuracy may be slightly compromised.
The effect will be a 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.
No Factory
Calibration
Possible causes:
Factory Calibration is missing. Accuracy will be
compromised.
Resolution:
Replace the Meter Body or return the device for
Factory Calibration.
