18
4 Mounting
VEGABAR 82 • Profibus PA
45031-EN-220624
•
All components of the system, e.g. measuring instruments, must
be cleaned in accordance with the requirements of recognized
regulations or standards
•
Depending on the seal material, certain temperatures and pres-
sures must not be exceeded in oxygen applications, see chapter "
Technical data
"
Danger:
Instruments for oxygen applications must be unpacked just before
mounting. After removing the protective cover of the process fitting,
the label "O
2
" will be visible on the process fitting. Penetration of oil,
grease and dirt should be avoided. Danger of explosion!
4.3 Ventilation and pressure compensation
1
2
3
6
6
6
6
6
5
4
Fig. 12: Position of the filter element
1 Plastic, stainless steel single chamber (precision casting)
2 Aluminium - single chamber
3 Stainless steel single chamber (electropolished)
4 Plastic double chamber
5 Aluminium, stainless steel double chamber housing (precision casting)
6 Filter element
With the following instruments a blind plug is installed instead of the
filter element:
•
Instruments in protection IP66/IP68 (1 bar) - ventilation via capillar-
ies in non-detachable cable
•
Instruments with absolute pressure
→
Turn the metal ring in such a way that the filter element points
downward after installation of the instrument. This provides better
protection against buildup.
Filter element - Position
Filter element - Position
Ex-d version
