Status Messages - Siemens SITRANS LG270 Operating Instructions Manual

Echo curve memory

Status messages

PBD-51041506
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. Additional echo curves are stored via:
•
PC with PACTware/DTM
•
Control system with EDD
•
Display and adjustment module
9.3 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 there are more detailed error messages available
under the menu item "Diagnostics" via the respective adjustment
module.
The status messages are divided into the following categories:
•
Failure
•
Function check
•
Out of specification
•
Maintenance requirement
and explained by pictographs:
1
Fig. 26: 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 fault message is
output.
This status message is always active. It cannot be deactivated by the
user.
Function check: The instrument is being worked on, the measured
value is temporarily invalid (for example during simulation).
This status message is inactive by default.
SITRANS LG270 - Operating Instructions
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