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8 Diagnosis, asset management and service
VEGAPULS 69 • Modbus and Levelmaster protocol
47252-EN-210205
Code
Text message
Cause
Rectification
M505
No echo available
Sensor does not detect an echo during
operation
Antenna dirty or defective
Clean the antenna
Use a more suitable antenna/sensor
Remove possible false echoes
Optimize sensor position and orientation
M506
Installation/Setup error
Error during setup
Check or correct installation and/or pa
-
rameter settings
M507
Error in the instrument
settings
Error during setup
Error when carrying out a reset
False signal suppression faulty
Carry out reset and repeat setup
8.4 Rectify faults
The operator of the system is responsible for taking suitable meas-
ures to rectify faults.
The first measures are:
•
Evaluation of fault messages
•
Checking the output signal
•
Treatment of measurement errors
A smartphone/tablet with the adjustment app or a PC/notebook with
the software PACTware and the suitable DTM offer you further com
-
prehensive diagnostic possibilities. In many cases, the causes can be
determined in this way and the faults eliminated.
The tables below give typical examples of application-related meas-
urement errors.
The images in column "
Error description
" show the actual level as a
dashed line and the output level as a solid line.
1
2
Level
time
0
1 Real level
2 Level displayed by the sensor
Note:
If the output level is constant, the cause could also be the fault setting
of the current output to "
Hold value
".
If the level is too low, the reason could be a line resistance that is too
high
Reaction when malfunc-
tion occurs
Fault rectification
