VEGA VEGAFLEX 86 4 … 20 mA_HART - four-wire - Manual (Page 63)

63
9 Diagnostics and service
VEGAFLEX 86 • 4 … 20 mA/HART - four-wire
41845-EN-130314
Code
Text mes-
sage
Cause Rectification
S601
Overfilling – Danger of vessel overfilling – Make sure that there is no
further filling
– Check level in the vessel
The following table shows the error codes and text messages in the
status message "Maintenance" and provides information on causes
as well as corrective measures.
Code
Text mes-
sage
Cause Rectification
M500
Error with the
reset delivery
status
– With the reset to delivery
status, the data could not
be restored
– Repeat reset
– Load XML file with sensor
data into the sensor
M501
Error in the
non-active
linearization
table
– Hardware error EEPROM – Exchanging the electronics
– Send instrument for repair
M502
Error in the
diagnosis
memory
– Hardware error EEPROM – Exchanging the electronics
– Send instrument for repair
M503
Reliability too
low
– The echot/noise ratio is the
small for a reliable meas-
urement
– Check installation and
process conditions
– Clean the antenna
– Change polarisation direc-
tion
– Use instrument with higher
sensitivity
M504
Error on an
device inter-
face
– Hardware defect – Check connections
– Exchanging the electronics
– Send instrument for repair
M505
No echo avail-
able
– Level echo can no longer
be detected
– Clean the antenna
– Use a more suitable
antenna/sensor
– Remove possible false
echoes
– Optimize sensor position
and orientation
9.4 Rectify faults
The operator of the system is responsible for taking suitable meas-
ures to rectify faults.
Maintenance
Reaction when malfunc-
tions occur