VEGA VEGAPULS 62 (≥ 2.0.0 - ≥ 4.0.0) Profibus PA - Manual (Page 20)

20
4 Mounting
VEGAPULS 62 • Profibus PA
36505-EN-121011
Socket diameter d Socket length h Recommended anten-
na diameter
40 mm 100 mm 40 mm
50 mm 150 mm 48 mm
80 mm 250 mm 75 mm
100 mm 500 mm 95 mm
150 mm 800 mm 95 mm
Socket diameter d Socket length h Recommended anten-
na diameter
1½" 3.9 in 1½"
2" 5.9 in 2"
3" 9.8 in 3"
4" 19.7 in 4"
6" 31.5 in 4"
Tip:
The instrument is also optionally available with an antenna extension.
The 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.
Due 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.
Align the sensor in liquids as vertical as possible to the product sur-
face to achieve optimum measurement.
Fig. 16: Alignment in liquids
The mounting location of the radar sensor should be a place where no
other equipment or fixtures cross the path of the microwave signals.
Vessel installations, such as e.g. ladders, limit switches, heating spi-
rals, struts, etc., can cause false echoes and impair the useful echo.
Make sure when planning your measuring site that the radar sensor
has a "clear view" to the measured product.
In case of existing vessel installations, a false echo storage should be
carried out during setup.
If large vessel installations such as struts or supports cause false
echoes, these can be attenuated through supplementary measures.
Sensor orientation
Vessel installations