31
4 Mounting
VEGAPULS 68 • Foundation Fieldbus
36538-EN-170405
Fig. 24: Purging air connection with horn antenna
Fig. 25: Purging air connection with parabolic antenna
The practice has shown that a pressure of approx. 0.2 … 1 bar
provides a sufficient air flow (see diagram in chapter "
Technical data
",
"
Purging air connection
".