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
(HART Command
Details/Resolutions
Critical Status
(Failure)
(continued)
Failure
Meter Body NVM
Corrupt
• Critical failure reported at the Sensor level
• Meter Body NVM Corrupt
Resolution:
Reset the device. If the problem persists, replace the
Meter Body.
DAC Failure
Config Data Corrupt
Electronic Module
Diag Failure
• 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.
Timeout
• 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)
Compensation
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.
Calibration
Factory Calibration is missing. Accuracy will be
compromised.
Resolution:
Replace the Meter Body or return the device for
Factory Calibration.