47
9 Diagnostics and service
VEGABAR 81 • 4
… 20 mA
45025-EN-140228
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 also available outside normal working hours, seven
days a week around the clock.
Since we offer this service worldwide, the support is provided in
English. The service itself is free of charge, the only costs involved are
the normal call charges.
9.3 Exchanging the electronics module
In case of a defect, the user can replace the electronics module with
another one of identical type.
In Ex applications, only instruments and electronics modules with ap
-
propriate Ex approval may be used.
If there is no electronics module available on site, one can be ordered
from the agency serving you.
You can find detailed information on the electronics exchange in the
booklet "
Operating instructions for electronics module VEGABAR
series 80
".
9.4 Exchange process assembly with version
IP 68 (25 bar)
With version IP 68
(25
bar), the user can exchange the process as
-
sembly on site. Connection cable and external housing can be kept.
Required tools:
•
Hexagon key wrench, size 2
Caution:
The exchange may only be carried out in the complete absence of
line voltage.
In Ex applications, only a replacement part with appropriate Ex ap
-
proval may be used.
Caution:
During exchange, protect the inner side of the parts against contami
-
nation and moisture.
Proceed as follows when carrying out the exchange:
1. Losen the fixing screw with the hexagon key wrench
2. Carefully detach the cable assembly from the process assembly
24 hour service hotline