VEGA VEGAFLEX 86 4 … 20 mA_HART two-wire Coax probe With SIL qualification - Manual (Page 64)

64
10 Diagnostics and service
VEGAFLEX 86 • 4 … 20 mA/HART two-wire
44231-EN-130823
Failure: Due to a malfunction in the instrument, a failure message is
outputted.
This status message is always active. It cannot be deactivated by the
user.
Function check: The instrument is in operation, the measured value
is temporarily invalid (for example during simulation).
This status message is inactive by default. It can be activated by the
user via PACTware/DTM or EDD.
Out of specification: The measured value is unstable because the
instrument specification is exceeded (e.g. electronics temperature).
This status message is inactive by default. It can be activated by the
user via PACTware/DTM or EDD.
Maintenance: 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. It can be activated by the
user via PACTware/DTM or EDD.
The following table shows the error codes in the status message
"Failure" and gives information on the reason and rectification. Keep
in mind that some information is only valid with four-wire instruments.
Code
Text mes-
sage
Cause Rectification
F013
no measured
value avail-
able
– Sensor does not detect an
echo during operation
– Process component or
probe contaminated or
defective
– Check or correct installation
and/or parameter adjust-
ment
– Clean or exchange process
component or probe
F017
Adjustment
span too small
– Adjustment not within
specification
– Change adjustment accord-
ing to the limit values (dif-
ference between min. and
max. ≥ 10 mm)
F025
Error in the
linearization
table
– Index markers are not con-
tinuously rising, for examle
unlogical value pairs
– Check values of the lineari-
zation table
– Delete/create a new lineari-
zation table
F036
No operable
software
– Failed or interrupted soft-
ware update
– Repeat software update
– Check electronics version
– Exchanging the electronics
– Send instrument for repair
F040
Error in the
electronics
– Hardware defect – Exchanging the electronics
– Send instrument for repair
F041
Probe loss – Cable probe broken or rod
probe defective
– Check probe and exchange,
if necessary
Failure