9 Maintenance and fault rectification
9.1 Maintenance
When used as directed in normal operation, VEGAMET 624 is
completely maintenance free.
9.2 Rectify malfunctions
The operator of the system is responsible for taking suitable measures
to rectify malfunctions.
A maximum of reliability is ensured. Nevertheless, f aults can occur
during operation. These may be caused by the following, e.g.:
l Measured value from sensor not correct
l Power supply
l Interference on the cables
The first measures to be taken are to check the input and output signal
as well as to evaluate the error messages via the display. The
procedure is described below. Further comprehensive diagnostics can
be carried out on a PC with PACTware and the suitable DTM. In many
cases, the causes can be determined in this way and faults rectified.
However, should these measures not be successful, call the VEGA
service hotline in urgent cases under the phone no. +49 1805 858550.
The hotline is available to you 7 days a week round-the-clock. Since
we offer this service world-wide, the support is only available in the
English language. The service is free of charge, only the standard
telephone costs will be charged.
The signal conditioning instrument and the connected sensors are
permanently monitored during operation and the values entered during
parameter adjustment are checked for plausibility. If irregularities
occur or in case of incorrect parameter adjustment, a fault signal is
triggered. In case of an instrument defect or line break/shortcircuit, a
fault signal is also triggered.
The fail safe relay deenergises in case of failure, the failure indication
lights and the current outputs react according to their configured
control behaviour. In addition, one of the following fault messages is
outputted on the display.
? E003
l CRC error (error with self-check)
à Carry out a reset
Reaction when malfunc-
tions occur
Causes of malfunction
Fault rectification
24 hour service hotline
Fault message
VEGAMET 624 • 4 … 20 mA/HART signal conditioning instrument 43
9 Maintenance and fault rectification
28969-EN-091116
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