VEGA VEGAPULS 56V - Manual (Page 9)

VEGAPULS 56V 9
Pipe antenna
Pipe antennas on surge or by-
pass pipes only form a complete
antenna system in conjunction
with a measuring pipe which can
also be bent. Pipe antennas are
best suited for products with
extreme product movements or
products with low dielectric
constant.
The antenna can be with or with-
out horn. It characterizes by
very good antenna gain. A very
good antenna reliability can be
achieved even in case of prod-
ucts with very bad reflection
features.
The measuring pipe means a
conductor for radar signals. The
running period of the radar
signals changes in the pipe and
depends on the pipe diameter.
The pipe inner diameter must be
programmed in the electronics
so that the running period can
be compensated.
Product description
1.4 Antennas
The antenna is the eye of the radar sensor.
Various antenna configurations are available
for different applications and process condi-
tions.
Horn antenna
Horn antennas focus the
radar signals very well.
Manufactured of 1.4571
(stst) or Hastelloy C22
they are very rugged and
physically as well as
chemically resistant. Horn
antennas are used for
measurement in closed or
open vessels.
DN 150
DN 250
DN 50
DN 80