VEGA VEGABAR 81 Profibus PA - Operating Instructions - Manual (Page 54)

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9 Diagnosis, asset management and service
VEGABAR 81 • Profibus PA
45020-EN-131107
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.
Ordering and exchange are possible with or without sensor serial
number. The electronics module with serial number includes order-
specific data such as factory setting, seal material etc. These are not
included in the electronics module without serial number.
The serial number is stated on the type label of VEGABAR 81 or on
the delivery note.
You can find detailed information on the electronics exchange in the
booklet "Operating instructions for electronics module VEGABAR
series 80".
9.6 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 socket 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.
Proceed as follows when carrying out the exchange:
1. Losen the fixing screw with the hexagon socket wrench
2. Carefully detach the cable assembly from the process assembly