Maintenance And Fault Rectification; Maintain; Remove Interferences - Vega VEGADIF 65 Operating Instructions Manual

Maintenance
Reaction when malfunc-
tions occur
Causes of malfunction

Remove interferences

24 hour service hotline
Checking the 4 ... 20 mA
signal
VEGADIF 65 • 4 ... 20 mA/HART
9 Maintenance and fault rectification

9.1 Maintain

When used in the correct way, no special maintenance is required in
normal operation.
In some applications, product buildup on the separating diaphragms
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.
9.2 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.:
Sensor
l
Process
l
Power supply
l
Signal processing
l
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.
Connect a handheld multimeter in the suitable measuring range
according to the wiring plan.
4 ... 20 mA signal not stable
?
Level fluctuations
l
à Set the integration time via the indicating and adjustment
module or PACTware
4 ... 20 mA signal missing
?
Wrong connection to power supply
l
à Check connection according to chapter "Connection steps"
and if necessary, correct according to chapter "Wiring plan"
9 Maintenance and fault rectification
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