VEGA VEGABAR 65 Profibus PA - Manual (Page 46)

8 Maintenance and fault rectification
8 .1 Maintain
When used in the correct way, no special maintenance is required in
normal operation.
In some applications, product buildup on the diaphragm can influence
the measuring result. Depending on the sensor and application, take
precautions to ensure that heavy buildup, and especially a hardening
thereof, is avoided.
If necessary, clean the diaphragm. Make sure that the materials are
resistant against the cleanig, see resistance list under "Services" on
"www.vega.com". The application variety of isolating diaphragms
requires special cleaning instructions for each application. Please ask
the VEGA agency serving you.
Caution:
Never clean the separating diaphragm mechanical, for example with
tools when using instruments with isolating diaphragms! This can
damage the diaphragm and filling oil can penetrate.
8 .2 Remove interferences
The operator of the system is responsible for taken suitable measures
to remove interferences.
A maximum of reliability is ensured. Nevertheless, faults can occur
during operation. These may be caused by the following, e.g.:
l Sensor
l Process
l Power supply
l Signal processing
The first measures to be taken are to check the output signals as well
as to evaluate the error messages via the indicating and adjustment
module. The procedure is described below. Further comprehensive
diagnostics can be carried out on a PC with the software PACTware
and the suitable DTM. In many cases, the causes can be determined
and faults rectified in this way.
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.
Maintenance
Cleaning
Reaction when malfunc-
tions occur
Causes of malfunction
Fault rectification
24 hour service hotline
46 VEGABAR 65 • Profibus PA
8 Maintenance and fault rectification
28253
-EN
-090522