VEGA VEGADIS 11 - Manual (Page 16)

7 M aintenance and fault rectification
7 .1 Maintenance
When used as directed in normal operation, VEGADIS 11 is
completely maintenance free.
7 .2 Remove interferences
The operator of the system is responsible for taken suitable
measures to remove interferences.
VEGADIS 11 offers maximum reliability. Nevertheless, faults
can occur during operation. These may be caused by the
following, e.g.:
l
Sensor
l
Process
l
Supply
l
Signal processing
The first measure is checking the output signal. The procedure
is described below. Further comprehensive diagnostics
options offer a PC with the software PACTware™ and the
suitable DTM. In many cases, the reasons can be determined
in this way and faults can be 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.
Connect a handheld multimeter in the suitable measuring
range according to the wiring plan.
? 4 … 20 mA signal not stable
l
Level fluctuations
à Adjust integration time via PACTware™
l
No atmospheric pressure compensation with pressure
transmitters
à Check pressure compensation
Reaction when malfunc-
tions occur
Causes of malfunction
Fault clearance
24 hour service hotline
Checking the 4 … 20 mA
signal
16 VEGADIS 11
Maintenance and fault rectification
19888
-EN
-080227