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8 Diagnosis, asset management and service
WIKA Operating Instructions - Differential pressure transmitter DPT-20
•
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.
8.3 Asset Management function
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 required
and explained by pictographs:
4
1
2
3
Fig. 44: Pictographs of the status messages
1 Failure - red
2 Out of specification - yellow
3 Function check - orange
4 Maintenance required - 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.
Out of specification:
The measured value is unreliable because an
instrument specification was exceeded (e.g. electronics temperature).
This status message is inactive by default.
Maintenance required:
Due to external influences, the instrument
function is limited. The measurement is affected, but the measured
value is still valid. Plan in maintenance for the instrument because a
failure is expected in the near future (e.g. due to buildup).
This status message is inactive by default.
Status messages
