Endress+Hauser Gammapilot FMG50 - 8.6 Gammagraphy Detection

Gammapilot FMG50 Diagnostics and troubleshooting
Endress+Hauser 87
Diagnostic
number
Short text Remedy instructions Status
signal
[from the
factory]
Diagnostic
behavior
[from the
factory]
955 Gammagraphy detected Gammagraphy detected C Warning
1)
956 Evaluation plateau curve Evaluation plateau curve M Warning
1) Diagnostic behavior can be changed.
8.4.3 Displaying the diagnostic events
Actual diagnostics
The menu contains the "Actual diagnostics" parameter with a time stamp.
Last error
The menu contains the "Previous diagnostics" parameter with a time stamp.
Event logbook
The events are saved in the event logbook.
Navigation
"Diagnostics" menu → Event logbook
8.5 Diagnostic event on the RIA15
A diagnostic event is not directly shown on the RIA15. The fault F911 only appears
directly on the RIA15 display in the event of an alarm.
Displaying a diagnostic event on the RIA15
1. Navigate to: DIAG/TERR
2. Press 
3. Press 
4. Press 
5. Press  3 times
6. Press 
 The diagnostic event of the field device is shown on the RIA15 display
8.6 Gammagraphy
8.6.1 General principles
This function involves the detection of interference radiation that interrupts the
measurement. The aim of gammagraphy detection is to detect interference radiation that
typically occurs during nondestructive material testing within the system. Without
gammagraphy detection, this interference radiation would result in a low measured value
(0% or ρmin). In contrast, when gammagraphy detection is used, the measured value
adopts a defined value in this case (alarm current or hold last measured value).