VEGA VEGADIF 55 Service instructions - Manual (Page 14)

Code Message
type/NA
64 Message/De-
scription Cause Measure Priority
726 (A726) Error C
factory set-
ting warn-
ing C> Temperature
measurement
transmission
overcontrolled
l
Electromagnetic influ-
ences are higher than
the specifications in
chapter "Technical
data" (see product in-
formation manual VE-
GADIF 55)
l Process temperature
outside the permissi-
ble range
l Sensor defective
l
Block electromagnetic
effects or remove the
source of interference
l Check the existing
temperature, if neces-
sary, reduce or in-
crease
l If the process temper-
ature is in the permis-
sible range, exchange
the sensor
31
727 (A727) Error C
factory set-
ting warn-
ing C> Pressure
measurement
transmission
overcontrolled
l
Electromagnetic influ-
ences are higher than
the specifications in
chapter "Technical
data" (see product in-
formation manual VE-
GADIF 55)
l
Pressure is outside
the permissible range
l
Sensor defective
l
Block electromagnetic
effects or remove the
source of interference
l
Check the existing
pressure and, if nec-
essary, reduce or in-
crease
l
If the pressure is in the
permissible range, ex-
change the sensor
28
728 (A728) Alarm B B> RAM error
l
Fault in the main elec-
tronics
l
Main electronics de-
fective
l
Separate instrument
briefly from voltage
supply
l
Exchange the main
electronics
2
729 (A729) Alarm B B> RAM error l Fault in the main elec-
tronics
l Main electronics de-
fective
l Separate instrument
briefly from voltage
supply
l Exchange the main
electronics
3
Error C fac-
tory setting
warning Error C C> Pmin.
PROCESS
underrun
l Measured pressure
value has fallen short
of the value specified
for parameter Pmin.
PROCESS
l Loose contact on the
sensor cable
l Check system/meas-
ured pressure value
l If necessary, change
value for Pmin.
PROCESS (see oper-
ating instructions
manual VEGADIF 55,
parameter description
Pmin. PROCESS)
l Wait a short moment
and ensure a stable
connection or avoid
loose connection.
46
731 (A731) Error C C> Pmax.
PROCESS
underrun
l
Measured pressure
value has exceeded
the value specified for
parameter Pmax.
PROCESS
l Check system/meas-
ured pressure value
l If necessary, change
value for Pmax.
PROCESS (see oper-
ating instructions
manual VEGADIF 55,
parameter description
Pmax. PROCESS)
45
14 Service instructions VEGADIF 55
Maintenance and fault rectification
31732
-EN
-080430