Endress+Hauser Proline Promag W 800 - Diagnostic information on local display

Proline Promag W 800 Diagnosis and troubleshooting
Endress+Hauser 77
12.2 Diagnostic information on local display
12.2.1 Diagnostic message
Faults detected by the self-monitoring system of the measuring device are displayed as a
diagnostic message in alternation with the operational display.
Maintenance required
• Maintenance required.
• Output signal is still valid.
?
Out of specification
• Device is being operated outside the technical specification limits, e.g. outside
the process temperature range.
• Device is operated outside the configuration performed by the user, e.g.
maximum flow rate.
Function check
• Device is in service mode, e.g. during a simulation.
• Output signal is temporarily invalid.
If two or more diagnostic events are pending simultaneously, only the message of the
diagnostic event with the highest priority is shown.
Status signals
The status signals provide information on the state and reliability of the device by
categorizing the cause of the diagnostic information (diagnostic event).
The status signals are categorized according to VDI/VDE 2650 and NAMUR
Recommendation NE 107: F = Failure, C = Function Check, S = Out of Specification, M
= Maintenance Required
Symbol Meaning
Failure
An operating error has occurred. The measured value is no longer valid.
Function check
The device is in simulation mode.
Out of specification
The device is being operated:
• Outside its technical specification limits (e.g. outside the process temperature range)
• Outside the configuration performed by the user (e.g. outside the maximum output frequency of
the pulse output).