Status Messages - Siemens SITRANS LG250 Operating Instructions Manual

Echo curve memory

Status messages

58
•
Modification of a parameter
•
Switch-on and switch-off times
•
Status messages (according to NE 107)
•
Error messages (according to NE 107)
The data are read out via a PC with PACTware/DTM or the control
system with EDD.
The echo curves are stored with date and time and the corresponding
echo data. The memory is divided into two sections:
Echo curve of the setup: This is used as reference echo curve for
the measurement conditions during setup. Changes in the measure-
ment conditions during operation or buildup on the sensor can thus
be recognized. The echo curve of the setup is stored via:
•
PC with PACTware/DTM
•
Control system with EDD
•
Display and adjustment module
Further echo curves: Up to 10 echo curves can be stored in a ring
buffer in this memory section. Further echo curves are stored via:
•
PC with PACTware/DTM
•
Control system with EDD
•
Display and adjustment module
10.3 Status messages
The instrument features self-monitoring and diagnostics according to
NE 107 and VDI/VDE 2650. In addition to the status messages in the
following tables, detailed error messages are available under menu
item "Diagnostics" via the display and adjustment module, PACTware/
DTM and EDD.
The status messages are divided into the following categories:
•
Failure
•
Function check
•
Out of specification
•
Maintenance requirement
and explained by pictographs:
1
Fig. 25: Pictographs of the status messages
1 Failure - red
2 Out of specification - yellow
3 Function check - orange
4 Maintenance - blue
Failure: Due to a malfunction in the instrument, a failure message is
outputted.
SITRANS LG250 - Operating Instructions
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PBD-51041387