VEGA VEGAPULS SR 68 Profibus PA User Manual
Page 29
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29
4 Mounting
VEGAPULS SR 68 • Profibus PA
38296-EN-130624
In case of extreme dust deposits in the antenna system, VEGAPULS
SR 68 is available with a rinsing air connection. The air is distributed
via channels in the antenna system and keeps it largely free of dust.
Fig. 25: Purging air connection with horn antenna
Fig. 26: 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".
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