VEGA VEGAPULS 68 (≥ 2.0.0 - ≤ 3.8) 4 … 20 mA_HART two-wire - Manual (Page 23)

Socket diameter d Socket length h
100 mm 500 mm
150 mm 800 mm
Socket diameter d Socket length h
1½" 3.9 in
2" 5.9 in
3" 9.8 in
4" 19.7 in
6" 31.5 in
Tip:
VEGAPULS
68 is also optionally available with an antenna extension.
T he antenna length can be selected (either ex works or later) to allow
the antenna to protrude slightly out of the end of the mounting socket.
D
ue to the antenna extension however, disturbing reflections are
generated in the close-up range. This can lead to an increase in the
required minimum distance, especially with poorly reflecting media
such as plastic powder. In practice, a cleanly constructed mounting
socket, if necessary with rounded edges, introduces fewer disturbing
influences than an antenna extension.
T
he silo walls of multiple chamber silos are often made of profile walls,
such as e.g. profile sheeting, to ensure the required stability. If the
radar sensor is mounted very close to a heavily structured vessel wall,
considerable false reflections can be generated. Hence the sensor
should be mounted at a large distance from the separating wall. The
optimal mounting position is on the outer wall of the silo with the sensor
directed towards the emptying aperture in the silo center.
Mounting in multiple
channel silo
VEGAPULS 68 • 4 … 20 mA/HART two-wire 23
4 M ounting
29261
-EN
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