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8 Diagnosis, asset management and service
WIKA Operating Instructions - Process pressure transmitter CPT-2x
8.4 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. 36: 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.
Code
Text message
Cause
Rectification
DevSpec
Diagnosis Bits
F013
No valid measured value
available
Gauge pressure or low pressure
Measuring cell defective
Exchange measuring cell
Send instrument for repair
Bit 0
Status messages
Failure
