Maintenance And Fault Rectification; Maintenance; Rectify Faults - Vega VEGABAR 66 Operating Instructions Manual

8 Maintenance and fault rectification

Maintenance

Cleaning
Failure reasons
Fault rectification
24 hour service hotline
Checking Foundation
Fieldbus
46
8 Maintenance and fault rectification
8.1 Maintenance
If the instrument is used properly, 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 "Service" on
"www.vega.com".
8.2 Rectify faults
VEGABAR 66 offers maximum reliability. Nevertheless, faults can oc-
cur during operation. These may be caused by the following, e.g.:
•
Sensor
•
Process
•
Voltage supply
•
Signal processing
The first measures to be taken are to check the output signals as well
as to evaluate the error messages via the display 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 the faults rectified this way.
Should these measures not be successful, please call in urgent cases
the VEGA service hotline under the phone no. +49 1805 858550.
The hotline is manned 7 days a week round-the-clock. Since we offer
this service worldwide, the support is only available in the English
language. The service is free, only standard call charges are incurred.
The following table describes possible errors and helps to remove
them:
Error Cause
When an addition- Max. supply
al instrument is current of the seg-
connected, the H1 ment coupler
segment fails. exceeded
Measured val- The menu item
ue on the display "Display - Display
and adjustment value" is not set to
module does not "AI-Out"
correspond to the
value in the PLC
Rectification
Measure the current consumption, re-
duce size of segment
Check values and correct, if neces-
sary
VEGABAR 66 • Foundation Fieldbus